[Clang][OpenMP offload] Eliminate use of OpenMP linker script

[sdmitriev]

Summary

OpenMP linker script is known to cause problems for gold and lld linkers on Linux and it will also cause problems for Windows enabling in future. This is a sufficient justification for eliminating use of OpenMP linker script and replacing it with a portable solution. This patch contains prototype changes which implement such solution.

First a brief explanation how OpenMP linker script is being used in existing implementation. OpenMP linker script is dynamically generated by the clang driver and is added to the host link command to fulfil the following tasks

1. Insert device binaries into the host binary at link time as data (makes host binary fat)
2. Creates pair of symbols for the start/end address for each device binary
3. And creates pair of symbols with start/end addresses around the compiler generated offload entry table

All symbols that are created by the linker script are used by the offload registration code that is added by the compiler to each host object as a comdat group. This compiler generated code consists of a pair of data objects (device binary descriptor) that use those symbols as initializers and two functions. One of those functions registers device binary descriptor at OpenMP runtime at program startup and the other unregisters it. BTW, having offload registration code in each host object is not good because it makes host object dependent on a particular list of targets (device binary descriptor depends on the offload targets).

This patch implements an alternative solution for the above tasks. Device binaries are inserted into the host binary with a help of the wrapper bit-code file which contains device binaries as data as well as the offload registration code for registering device binaries in offload runtime (tasks 1 and 2 in the above list). Wrapper bit-code file is dynamically created by the clang driver with a help of new tool clang-offload-wrapper which takes device binaries as input and produces bit-code file with required contents. Wrapper bit-code is then compiled to an object and resulting object is appended to the host linking by the clang driver.

Start/end symbols around the offload entry table (3 in the list above) are added by the linker which provides definition of start_name/stop_name symbols to satisfy unresolved references for ELF sections with a name representable as C identifier (see https://sourceware.org/binutils/docs/ld/Input-Section-Example.html for details). On Windows start/end symbols can be defined in the wrapper bit-code file with a help of the sections grouping (see https://docs.microsoft.com/en-us/windows/win32/Debug/pe-format#grouped-sections-object-only); Windows support should still be added in future.

[sdmitriev]

Rebase.

[ABataev]

clang/include/clang/Driver/Action.h

74

Do we really need this new kind of job here, can we use bundler instead?

clang/lib/CodeGen/CGOpenMPRuntime.cpp

9287–9288

Do not emit it for the devices and simd only mode. Also, would be good to assert if no devices triples were specified.

clang/lib/CodeGen/CGOpenMPRuntime.h

1450

Ithink, you can drop virtual here and remove overridden version from the CGOpenMPRuntimeSimd. Instead, just check for OpenMP simd mode in the original function and just early exit in this case.

[sdmitriev]

Addressed some review comments.

[sdmitriev]

clang/include/clang/Driver/Action.h

74

Well, I can probably try to reuse bundling action for wrapping, but I think it will just complicate the logic. Wrapping logically differs from bundling and wrapping is done by a different tool, so I think it is natural to add a distinct action class for it.

clang/lib/CodeGen/CGOpenMPRuntime.cpp

9287–9288

Offload entries are actually emitted both for host and target compilations. I have added a check for OpenMP simd mode to createOffloadingBinaryDescriptorRegistration().

clang/lib/CodeGen/CGOpenMPRuntime.h

1450

Ok. Without virtual I do not see much reasons for adding new function which just calls createOffloadEntriesAndInfoMetadata(), so instead I have just made createOffloadEntriesAndInfoMetadata() public and added a check for OpenMP simd mode to this function.

[ABataev]

clang/tools/clang-offload-wrapper/ClangOffloadWrapper.cpp

70

Why not ArrayRef?

73–76

Not sure that this is the best solution, we may end up with incorrect size_t type in some cases.

74

Use real type here, not auto

134

Add comment for the true constant with the name of parameter.

137

Same here

144

Comments?

145

Use real type, not auto

149

Seems to me the code is not formatted

197

Use real type, not auto

210

llvm::None instead of {}

217

Remove extra braces here, they are not needed.

223

Extra braces

[sdmitriev]

clang/tools/clang-offload-wrapper/ClangOffloadWrapper.cpp

70

Changed to MemoryBufferRef which in some sense is similar to ArrayRef.

73–76

I have slightly revised this code to avoid unexpected results.

149

Right. Fixed.

210

Switched to a different constructor which does not have argument types.

[vzakhari]

clang/tools/clang-offload-wrapper/ClangOffloadWrapper.cpp

227

FYI, llvm.global_dtors does not work on Windows. The symbol will be placed into .CRT$XC[A-Z] portion of .CRT in TargetLoweringObjectFileImpl.cpp, so, basically, tgt_unregister_lib will be called right after tgt_register_lib. We can either use a trick from ASAN, i.e. put llvm.global_dtors into .CRT$XT[A-Z] (I am not sure how solid this solution is) or call atexit() inside tgt_register_lib to register tgt_unregister_lib terminator.

[sdmitriev]

clang/tools/clang-offload-wrapper/ClangOffloadWrapper.cpp

227

It works as expected on Linux, so I guess this is just a bug in lowering code for Windows that need to be fixed.

[ABataev]

clang/tools/clang-offload-wrapper/ClangOffloadWrapper.cpp

227

Still, better to call atexit(), this is common solution to call a global destructor/deinitializer

[vzakhari]

clang/tools/clang-offload-wrapper/ClangOffloadWrapper.cpp

227

I agree. One other thing: if __tgt_register_lib is never called do we want to call __tgt_unregister_lib? It is possible with global_ctors/global_dtors, but not possible with atexit/cxa_atexit.

[sdmitriev]

As I understand ‘atexit’ solution would be target dependent (‘__cxa_atexit’ on Linux and ‘atexit’ on Windows) whereas @llvm.global_ctors/dtors variables offer similar and platform neutral functionality (http://llvm.org/docs/LangRef.html#the-llvm-global-ctors-global-variable). Why do you think that ‘atexit’ is a better choice?

[sdmitriev]

Rebase.

[ABataev]

In D64943#1619958, @sdmitriev wrote:

As I understand ‘atexit’ solution would be target dependent (‘__cxa_atexit’ on Linux and ‘atexit’ on Windows) whereas @llvm.global_ctors/dtors variables offer similar and platform neutral functionality (http://llvm.org/docs/LangRef.html#the-llvm-global-ctors-global-variable). Why do you think that ‘atexit’ is a better choice?

Because it does not work on Windows, better to have portable solution, if possible.

clang/tools/clang-offload-wrapper/ClangOffloadWrapper.cpp

73

1. Markt it const.
2. This still is not the best solution, since size_t not necessarily has the pointer size. I don't know if there is a better solution. @hfinkel? If this is the best, why not just to use getIntPtrType(C)?

136

Use \\\ style for comments here

172

Use ArrayRef instead of const SmallVectorImpl &

331

Use std:string instead of auto

332

Also, better to specify type expplicitly.

[lebedev.ri]

In D64943#1633164, @ABataev wrote:

In D64943#1619958, @sdmitriev wrote:

As I understand ‘atexit’ solution would be target dependent (‘__cxa_atexit’ on Linux and ‘atexit’ on Windows) whereas @llvm.global_ctors/dtors variables offer similar and platform neutral functionality (http://llvm.org/docs/LangRef.html#the-llvm-global-ctors-global-variable). Why do you think that ‘atexit’ is a better choice?

Because it does not work on Windows, better to have portable solution, if possible.

Is there a bug # ?

[ABataev]

In D64943#1633170, @lebedev.ri wrote:

In D64943#1633164, @ABataev wrote:

In D64943#1619958, @sdmitriev wrote:

As I understand ‘atexit’ solution would be target dependent (‘__cxa_atexit’ on Linux and ‘atexit’ on Windows) whereas @llvm.global_ctors/dtors variables offer similar and platform neutral functionality (http://llvm.org/docs/LangRef.html#the-llvm-global-ctors-global-variable). Why do you think that ‘atexit’ is a better choice?

Because it does not work on Windows, better to have portable solution, if possible.

Is there a bug # ?

@vzakhari?

[vzakhari]

In D64943#1633175, @ABataev wrote:

In D64943#1633170, @lebedev.ri wrote:

In D64943#1633164, @ABataev wrote:

In D64943#1619958, @sdmitriev wrote:

As I understand ‘atexit’ solution would be target dependent (‘__cxa_atexit’ on Linux and ‘atexit’ on Windows) whereas @llvm.global_ctors/dtors variables offer similar and platform neutral functionality (http://llvm.org/docs/LangRef.html#the-llvm-global-ctors-global-variable). Why do you think that ‘atexit’ is a better choice?

Because it does not work on Windows, better to have portable solution, if possible.

Is there a bug # ?

@vzakhari?

I do not have bug #, but the issue was introduced with the following commit:
commit f803b23879d9e1d9415ec1875713534dcc203df5
Author: Reid Kleckner <[e-mail]>
Date: Fri Sep 7 23:07:55 2018 +0000

[COFF] Implement llvm.global_ctors priorities for MSVC COFF targets

Summary:
MSVC and LLD sort sections ASCII-betically, so we need to use section
names that sort between .CRT$XCA (the start) and .CRT$XCU (the default
priority).

In the general case, use .CRT$XCT12345 as the section name, and let the
linker sort the zero-padded digits.

Users with low priorities typically want to initialize as early as
possible, so use .CRT$XCA00199 for prioties less than 200. This number
is arbitrary.

Implements PR38552.

Reviewers: majnemer, mstorsjo

Subscribers: hiraditya, llvm-commits

Differential Revision: https://reviews.llvm.org/D51820

llvm-svn: 341727

The destructors are still in .CRT$XT for default priority (65535) now, but for non-default priority they will go into .CRT$XC. I will upload a fixing patch with a LIT test shortly.

This clang-offload-wrapper commit will work properly, if we use default priority for the destructors.

[lebedev.ri]

In D64943#1633357, @vzakhari wrote:

In D64943#1633175, @ABataev wrote:

In D64943#1633170, @lebedev.ri wrote:

In D64943#1633164, @ABataev wrote:

In D64943#1619958, @sdmitriev wrote:

As I understand ‘atexit’ solution would be target dependent (‘__cxa_atexit’ on Linux and ‘atexit’ on Windows) whereas @llvm.global_ctors/dtors variables offer similar and platform neutral functionality (http://llvm.org/docs/LangRef.html#the-llvm-global-ctors-global-variable). Why do you think that ‘atexit’ is a better choice?

Because it does not work on Windows, better to have portable solution, if possible.

Is there a bug # ?

@vzakhari?

I do not have bug #, but the issue was introduced with the following commit:
commit f803b23879d9e1d9415ec1875713534dcc203df5
Author: Reid Kleckner <[e-mail]>
Date: Fri Sep 7 23:07:55 2018 +0000

[COFF] Implement llvm.global_ctors priorities for MSVC COFF targets

Summary:
MSVC and LLD sort sections ASCII-betically, so we need to use section
names that sort between .CRT$XCA (the start) and .CRT$XCU (the default
priority).

In the general case, use .CRT$XCT12345 as the section name, and let the
linker sort the zero-padded digits.

Users with low priorities typically want to initialize as early as
possible, so use .CRT$XCA00199 for prioties less than 200. This number
is arbitrary.

Implements PR38552.

Reviewers: majnemer, mstorsjo

Subscribers: hiraditya, llvm-commits

Differential Revision: https://reviews.llvm.org/D51820

llvm-svn: 341727

The destructors are still in .CRT$XT for default priority (65535) now, but for non-default priority they will go into .CRT$XC. I will upload a fixing patch with a LIT test shortly.

This clang-offload-wrapper commit will work properly, if we use default priority for the destructors.

'IMHO' if there is a problem with lowering of LLVM IR constructs for some
particular targets, that problem must be resolved instead of adding workarounds.

[vzakhari]

In D64943#1633372, @lebedev.ri wrote:

In D64943#1633357, @vzakhari wrote:

In D64943#1633175, @ABataev wrote:

In D64943#1633170, @lebedev.ri wrote:

In D64943#1633164, @ABataev wrote:

In D64943#1619958, @sdmitriev wrote:

As I understand ‘atexit’ solution would be target dependent (‘__cxa_atexit’ on Linux and ‘atexit’ on Windows) whereas @llvm.global_ctors/dtors variables offer similar and platform neutral functionality (http://llvm.org/docs/LangRef.html#the-llvm-global-ctors-global-variable). Why do you think that ‘atexit’ is a better choice?

Because it does not work on Windows, better to have portable solution, if possible.

Is there a bug # ?

@vzakhari?

I do not have bug #, but the issue was introduced with the following commit:
commit f803b23879d9e1d9415ec1875713534dcc203df5
Author: Reid Kleckner <[e-mail]>
Date: Fri Sep 7 23:07:55 2018 +0000

[COFF] Implement llvm.global_ctors priorities for MSVC COFF targets

Summary:
MSVC and LLD sort sections ASCII-betically, so we need to use section
names that sort between .CRT$XCA (the start) and .CRT$XCU (the default
priority).

In the general case, use .CRT$XCT12345 as the section name, and let the
linker sort the zero-padded digits.

Users with low priorities typically want to initialize as early as
possible, so use .CRT$XCA00199 for prioties less than 200. This number
is arbitrary.

Implements PR38552.

Reviewers: majnemer, mstorsjo

Subscribers: hiraditya, llvm-commits

Differential Revision: https://reviews.llvm.org/D51820

llvm-svn: 341727

The destructors are still in .CRT$XT for default priority (65535) now, but for non-default priority they will go into .CRT$XC. I will upload a fixing patch with a LIT test shortly.

This clang-offload-wrapper commit will work properly, if we use default priority for the destructors.

'IMHO' if there is a problem with lowering of LLVM IR constructs for some
particular targets, that problem must be resolved instead of adding workarounds.

I completely agree with you! I am testing the patch for destructors.

[vzakhari]

FYI, llvm.global_dtor fix is in https://reviews.llvm.org/D66373

[sdmitriev]

Addressed review comments.

[sdmitriev]

clang/tools/clang-offload-wrapper/ClangOffloadWrapper.cpp

73

It cannot be const because of Type::getIntXXTy(LLVMContext &C) calls.

172

Done. And I have also changed MemoryBufferRef => ArrayRef (as you earlier suggested).

[sdmitriev]

In D64943#1633164, @ABataev wrote:

In D64943#1619958, @sdmitriev wrote:

As I understand ‘atexit’ solution would be target dependent (‘__cxa_atexit’ on Linux and ‘atexit’ on Windows) whereas @llvm.global_ctors/dtors variables offer similar and platform neutral functionality (http://llvm.org/docs/LangRef.html#the-llvm-global-ctors-global-variable). Why do you think that ‘atexit’ is a better choice?

Because it does not work on Windows, better to have portable solution, if possible.

@vzakhari has already committed his fix for llvm.global_dtors (https://reviews.llvm.org/D66373), so I assume use of llvm.global_dtors in this patch would no longer cause problems on Windows.

[sdmitriev]

Ping.

[sdmitriev]

Looks like there will be no more comments. If so, I will update the first part https://reviews.llvm.org/D65130 which adds clang-offload-wrapper tool with the latest changes.

[sdmitriev]

Ping

[sdmitriev]

Rebase

[JonChesterfield]

I'm not sure copying the crtbegin/crtend mechanism from the early days of C runtime is ideal. Since the data is stored in a common section anyway, please could we rename it to __omp_offloading_entries in which case the linker will provide start/end symbols automatically? That removes the two object files and the link order dependency which is a hazard to bitcode libraries.

[JonChesterfield]

OpenMP linker script is known to cause problems for gold and lld linkers on Linux and it will also cause problems for Windows enabling in future

What are the known problems with the linker script? I'm wondering if they can be resolved without the overhead of introducing a new tool.

[ABataev]

In D64943#1666658, @JonChesterfield wrote:

OpenMP linker script is known to cause problems for gold and lld linkers on Linux and it will also cause problems for Windows enabling in future

What are the known problems with the linker script? I'm wondering if they can be resolved without the overhead of introducing a new tool.

They just do not support linker script. And, thus, cannot be used for offloading. Only ld supports it.

[JonChesterfield]

In D64943#1666673, @ABataev wrote:

In D64943#1666658, @JonChesterfield wrote:

OpenMP linker script is known to cause problems for gold and lld linkers on Linux and it will also cause problems for Windows enabling in future

What are the known problems with the linker script? I'm wondering if they can be resolved without the overhead of introducing a new tool.

They just do not support linker script. And, thus, cannot be used for offloading. Only ld supports it.

In what respect? I've used linker scripts with both gold and lld, and both instances of --help text claim to support them. In the case of lld, a very complicated script hit a few internal errors, but I believe they've all been fixed since.

[ABataev]

In D64943#1666678, @JonChesterfield wrote:

In D64943#1666673, @ABataev wrote:

In D64943#1666658, @JonChesterfield wrote:

OpenMP linker script is known to cause problems for gold and lld linkers on Linux and it will also cause problems for Windows enabling in future

What are the known problems with the linker script? I'm wondering if they can be resolved without the overhead of introducing a new tool.

They just do not support linker script. And, thus, cannot be used for offloading. Only ld supports it.

In what respect? I've used linker scripts with both gold and lld, and both instances of --help text claim to support them. In the case of lld, a very complicated script hit a few internal errors, but I believe they've all been fixed since.

Hmm, I tried it with gold some time ago and it just did not work for me. The linking failed with diagnostics that some of the commands in the script are unknown.

[JonChesterfield]

In D64943#1666679, @ABataev wrote:

In D64943#1666678, @JonChesterfield wrote:

In D64943#1666673, @ABataev wrote:

In D64943#1666658, @JonChesterfield wrote:

OpenMP linker script is known to cause problems for gold and lld linkers on Linux and it will also cause problems for Windows enabling in future

What are the known problems with the linker script? I'm wondering if they can be resolved without the overhead of introducing a new tool.

They just do not support linker script. And, thus, cannot be used for offloading. Only ld supports it.

In what respect? I've used linker scripts with both gold and lld, and both instances of --help text claim to support them. In the case of lld, a very complicated script hit a few internal errors, but I believe they've all been fixed since.

Hmm, I tried it with gold some time ago and it just did not work for me. The linking failed with diagnostics that some of the commands in the script are unknown.

The problem turns out to be the 'insert before' statement. ld and lld support it, gold does not. According to https://bugzilla.redhat.com/show_bug.cgi?id=927573, the recommended workaround is essentially that implemented in this differential. See also https://sourceware.org/bugzilla/show_bug.cgi?id=15373.

[sdmitriev]

In D64943#1666693, @JonChesterfield wrote:

In D64943#1666679, @ABataev wrote:

In D64943#1666678, @JonChesterfield wrote:

In D64943#1666673, @ABataev wrote:

In D64943#1666658, @JonChesterfield wrote:

OpenMP linker script is known to cause problems for gold and lld linkers on Linux and it will also cause problems for Windows enabling in future

What are the known problems with the linker script? I'm wondering if they can be resolved without the overhead of introducing a new tool.

They just do not support linker script. And, thus, cannot be used for offloading. Only ld supports it.

In what respect? I've used linker scripts with both gold and lld, and both instances of --help text claim to support them. In the case of lld, a very complicated script hit a few internal errors, but I believe they've all been fixed since.

Hmm, I tried it with gold some time ago and it just did not work for me. The linking failed with diagnostics that some of the commands in the script are unknown.

The problem turns out to be the 'insert before' statement. ld and lld support it, gold does not. According to https://bugzilla.redhat.com/show_bug.cgi?id=927573, the recommended workaround is essentially that implemented in this differential. See also https://sourceware.org/bugzilla/show_bug.cgi?id=15373.

A small example that I presented on the OpenMP multi company meeting earlier:

bash-4.2$ cat foo.c
#include <stdio.h>

int main() {
  int X = 0;

#pragma omp target map(tofrom: X)
  X += 3;

  printf("X = %d\n", X);
  return 0;
}

bash-4.2$ clang -fopenmp -fopenmp-targets=x86_64-pc-linux-gnu -fuse-ld=gold foo.c
/usr/bin/ld.gold: error: /tmp/a-c699cd.lk:25:8: syntax error, unexpected STRING
/usr/bin/ld.gold: fatal error: unable to parse script file /tmp/a-c699cd.lk
clang-10: error: linker command failed with exit code 1 (use -v to see invocation)
bash-4.2$ clang -fopenmp -fopenmp-targets=x86_64-pc-linux-gnu -fuse-ld=lld foo.c
ld.lld: error: unable to INSERT AFTER/BEFORE .data: section not defined
clang-10: error: linker command failed with exit code 1 (use -v to see invocation)
bash-4.2$

Also OpenMP linker script will obviously cause problems on Windows once we start enabling offload on Windows.

[sdmitriev]

In D64943#1666636, @JonChesterfield wrote:

I'm not sure copying the crtbegin/crtend mechanism from the early days of C runtime is ideal. Since the data is stored in a common section anyway, please could we rename it to __omp_offloading_entries in which case the linker will provide start/end symbols automatically?

Well, I never said that it is an ideal solution, but it is a known mechanism that works well in many cases and can also be reused for the offloading entry table.
I do not fully understand your suggestion for renaming entries section, how it will help with providing start/end symbols for the entries. Can you please provide more details?

[JonChesterfield]

In D64943#1666849, @sdmitriev wrote:

In D64943#1666636, @JonChesterfield wrote:

I'm not sure copying the crtbegin/crtend mechanism from the early days of C runtime is ideal. Since the data is stored in a common section anyway, please could we rename it to __omp_offloading_entries in which case the linker will provide start/end symbols automatically?

Well, I never said that it is an ideal solution, but it is a known mechanism that works well in many cases and can also be reused for the offloading entry table.
I do not fully understand your suggestion for renaming entries section, how it will help with providing start/end symbols for the entries. Can you please provide more details?

Given a custom elf section with a C identifier as a name, the linker will provide definitions of __start_name/__stop_name to satisfy unresolved symbols. I don't believe this occurs if the section name is not a C identifier, e.g. contains a period. So unless I've misinterpreted the purpose of the two object files, they can be removed in exchange for renaming the section.

• had to Google for the Microsoft equivalent, https://stackoverflow.com/questions/3808053/how-to-get-a-pointer-to-a-binary-section-in-msvc

[sdmitriev]

In D64943#1666924, @JonChesterfield wrote:

In D64943#1666849, @sdmitriev wrote:

In D64943#1666636, @JonChesterfield wrote:

I'm not sure copying the crtbegin/crtend mechanism from the early days of C runtime is ideal. Since the data is stored in a common section anyway, please could we rename it to __omp_offloading_entries in which case the linker will provide start/end symbols automatically?

Well, I never said that it is an ideal solution, but it is a known mechanism that works well in many cases and can also be reused for the offloading entry table.
I do not fully understand your suggestion for renaming entries section, how it will help with providing start/end symbols for the entries. Can you please provide more details?

Given a custom elf section with a C identifier as a name, the linker will provide definitions of __start_name/__stop_name to satisfy unresolved symbols. I don't believe this occurs if the section name is not a C identifier, e.g. contains a period. So unless I've misinterpreted the purpose of the two object files, they can be removed in exchange for renaming the section.

• had to Google for the Microsoft equivalent, https://stackoverflow.com/questions/3808053/how-to-get-a-pointer-to-a-binary-section-in-msvc

Hm, I was not aware of this Linux linker feature, thanks a lot for the explanation! I see only one problem with using it as a replacement for the begin/end objects – it looks like __start_name/__stop_name symbols are created with default visibility instead of hidden. I guess it will cause problems for offload programs that use shared libraries because DSO’s __start_name/__stop_name symbols will be preempted by the executable’s symbols and that is not what we want. Is there any way to change this behavior?

As for the Windows support, you are right, __omp_offloading_entries_begin/__omp_offloading_entries_end symbols can be defined in the wrapper bit-code file with a help of the sections grouping (https://docs.microsoft.com/en-us/windows/win32/Debug/pe-format#grouped-sections-object-only). We were going to add this code to the wrapper tool later while adding Windows support.

[JonChesterfield]

Hm, I was not aware of this Linux linker feature, thanks a lot for the explanation! I see only one problem with using it as a replacement for the begin/end objects – it looks like __start_name/__stop_name symbols are created with default visibility instead of hidden. I guess it will cause problems for offload programs that use shared libraries because DSO’s __start_name/__stop_name symbols will be preempted by the executable’s symbols and that is not what we want. Is there any way to change this behavior?

Declaring the symbol as __attribute__((__visibility__("hidden"))) just works as far as I can tell. The linker still provides the right definition, objdump says it's hidden.

[JonChesterfield]

I'm on board with getting rid of the linker script. Gold's limited support for that seems conclusive.

I believe the current script does two things:
1/ takes a binary and embeds it in a section named .omp_offloading.amdgcn-amd-amdhsa
2/ provides start/end symbols for that section and for .omp_offloading.entries.

2/ is discussed above.
1/ can be implemented as a call to (llvm-)objcopy

If binary is used as the value for --input-target, the input file will be embedded as a data section in an ELF relocatable object, with symbols _binary_<file_name>_start, _binary_<file_name>_end, and _binary_<file_name>_size representing the start, end and size of the data, where <file_name> is the path of the input file as specified on the command line with non-alphanumeric characters converted to _.

I think dropping the linker script means that cmake will need to invoke an extra executable. As far as I can see, that tool can be objcopy instead of clang-offload-wrapper.

Does this diff mix getting rid of the linker script with other changes? E.g. it looks like the metadata generation is moving from clang to the new tool, but that seems orthogonal to dropping the linker script.

[sdmitriev]

In D64943#1667469, @JonChesterfield wrote:

I'm on board with getting rid of the linker script. Gold's limited support for that seems conclusive.

I believe the current script does two things:
1/ takes a binary and embeds it in a section named .omp_offloading.amdgcn-amd-amdhsa
2/ provides start/end symbols for that section and for .omp_offloading.entries.

2/ is discussed above.
1/ can be implemented as a call to (llvm-)objcopy

If binary is used as the value for --input-target, the input file will be embedded as a data section in an ELF relocatable object, with symbols _binary_<file_name>_start, _binary_<file_name>_end, and _binary_<file_name>_size representing the start, end and size of the data, where <file_name> is the path of the input file as specified on the command line with non-alphanumeric characters converted to _.

I think dropping the linker script means that cmake will need to invoke an extra executable. As far as I can see, that tool can be objcopy instead of clang-offload-wrapper.

Does this diff mix getting rid of the linker script with other changes? E.g. it looks like the metadata generation is moving from clang to the new tool, but that seems orthogonal to dropping the linker script.

Metadata is still generated by the clang, there are no changes in this area. What is moving to a wrapper tool is the generation of the offload registration code. Let me just attach the slides that I presented on the inter company meeting were the proposal was discussed. It'll probably answer most of your questions.

openmp_linker_script.pdf391 KBDownload

[JonChesterfield]

Does this diff mix getting rid of the linker script with other changes? E.g. it looks like the metadata generation is moving from clang to the new tool, but that seems orthogonal to dropping the linker script.

Metadata is still generated by the clang, there are no changes in this area. What is moving to a wrapper tool is the generation of the offload registration code. Let me just attach the slides that I presented on the inter company meeting were the proposal was discussed. It'll probably answer most of your questions.

openmp_linker_script.pdf391 KBDownload

It does indeed, thanks. I see the motivation for delaying offload registration code. I'm pretty sure that is indeed orthogonal to removing the linker script.

How would you feel about using objcopy to embed the device binary?

[sdmitriev]

In D64943#1668006, @JonChesterfield wrote:

Does this diff mix getting rid of the linker script with other changes? E.g. it looks like the metadata generation is moving from clang to the new tool, but that seems orthogonal to dropping the linker script.

Metadata is still generated by the clang, there are no changes in this area. What is moving to a wrapper tool is the generation of the offload registration code. Let me just attach the slides that I presented on the inter company meeting were the proposal was discussed. It'll probably answer most of your questions.

openmp_linker_script.pdf391 KBDownload

It does indeed, thanks. I see the motivation for delaying offload registration code. I'm pretty sure that is indeed orthogonal to removing the linker script.

How would you feel about using objcopy to embed the device binary?

I see some problems with using llvm-objcopy for that. First issue is that symbols created by llvm-objcopy for embedded data depend on the input file name. As you know these symbols are referenced from the offload registration code that is currently added to an object by the clang at compile time. I not sure how you can guarantee that symbol names will match. And another, more important problem is that it won't work on Windows because llvm-objcopy produces ELF object according to the description.

Anyway I am going to change entries section name to "omp_offloading_entries", remove omptargetbegin.o/omptargetend.o and upload the revised patch.

[JonChesterfield]

I see some problems with using llvm-objcopy for that. First issue is that symbols created by llvm-objcopy for embedded data depend on the input file name. As you know these symbols are referenced from the offload registration code that is currently added to an object by the clang at compile time. I not sure how you can guarantee that symbol names will match.

That seems solvable by renaming the input file / passing a string to clang.

And another, more important problem is that it won't work on Windows because llvm-objcopy produces ELF object according to the description.

objcopy works with coff in the meantime, and we already need a bunch of unix tools to build llvm on windows.

Anyway I am going to change entries section name to "omp_offloading_entries", remove omptargetbegin.o/omptargetend.o and upload the revised patch.

Thanks!

[sdmitriev]

• Changed offload entry section name to “omp_offloading_entries”
• Wrapper bit-code now uses start_ omp_offloading_entries/stop_ omp_offloading_entries symbols for accessing offload entry table assuming that these symbols are defined by the linker
• Removed omptargetbegin.o/omptargetend.o objects

[hfinkel]

This LGTM. I'm happy that this is a design improvement over the current scheme. @JonChesterfield , @ABataev , any further comments?

[JonChesterfield]

In D64943#1682452, @hfinkel wrote:

This LGTM. I'm happy that this is a design improvement over the current scheme. @JonChesterfield , @ABataev , any further comments?

This patch mixes two concerns.
1/ Remove the linker script
2/ Change generation of offload registration code

These should be separate patches. I think the linker script removal would then be uncontentious.

It'll be easier to consider the offload registration changes without the linker script changes. That's a more complicated design space. In particular, this change is motivated by supporting additional platforms, and I don't see how offload registration is related to that.

[ABataev]

clang/lib/Driver/Driver.cpp

3119

User real type instead of auto *

3402

auto *->real type

clang/lib/Driver/ToolChains/Clang.cpp

6370

auto->real type

6382

auto->real type

clang/tools/clang-offload-wrapper/ClangOffloadWrapper.cpp

73

Maybe better to get the size of size_t type from command line option rather than rely on some non-stable assumptions?

204

Just ArrayRef<char>, no need to make it const ArrayRef<char> &

[sdmitriev]

I have rebased patch and addressed last Alexey’s comments. If there are no more comments, I propose to split this patch into 3 pieces

1. Use linker for creating start/end symbols for the offload entry table. This part will also include renaming offload entry section name from “.omp.offloading_entries” to “omp_offloading_entries” since section name must be representable as a C identifier if we want linker to create start/stop symbols for it.
2. Add offload wrapper tool and associated driver changes for invoking this tool for wrapping device binaries. Wrapper bit-code file at this step will contain device binaries only (no offload registration code). Technically OpenMP linker script will be eliminated at this step.
3. And the last piece will move offload registration code generation from clang to the wrapper tool.

@hfinkel, @ABataev, @JonChesterfield , are you Ok with this?

[JonChesterfield]

The three way split looks great, thanks.

[hfinkel]

In D64943#1683368, @JonChesterfield wrote:

The three way split looks great, thanks.

Makes sense to me.

[sdmitriev]

I have uploaded the first part to https://reviews.llvm.org/D68070

[sdmitriev]

The second part was uploaded to https://reviews.llvm.org/D68166.

[sdmitriev]

I have uploaded the last part to https://reviews.llvm.org/D68746

[sdmitriev]

All three parts have been committed, so I am abandoning the original patch.

clang/include/clang/Driver/Action.h

enum ActionClass {
     AssembleJobClass,
     LinkJobClass,
     LipoJobClass,
     DsymutilJobClass,
     VerifyDebugInfoJobClass,
     VerifyPCHJobClass,
     OffloadBundlingJobClass,
     OffloadUnbundlingJobClass,
+    OffloadWrapperJobClass,
 
     JobClassFirst = PreprocessJobClass,
-    JobClassLast = OffloadUnbundlingJobClass
+    JobClassLast = OffloadWrapperJobClass
   };
 
   // The offloading kind determines if this action is binded to a particular
   // programming model. Each entry reserves one bit. We also have a special kind
   // to designate the host offloading tool chain.
   enum OffloadKind {
     OFK_None = 0x00,
 
ArrayRef<DependentActionInfo> getDependentActionsInfo() const {
     return DependentActionInfoArray;
   }
 
   static bool classof(const Action *A) {
     return A->getKind() == OffloadUnbundlingJobClass;
   }
 };
 
+class OffloadWrapperJobAction : public JobAction {
+  void anchor() override;
+
+public:
+  OffloadWrapperJobAction(ActionList &Inputs, types::ID Type);
+
+  static bool classof(const Action *A) {
+    return A->getKind() == OffloadWrapperJobClass;
+  }
+};
+
 } // namespace driver
 } // namespace clang
 
 #endif // LLVM_CLANG_DRIVER_ACTION_H

clang/include/clang/Driver/Options.td

 def fopenmp_version_EQ : Joined<["-"], "fopenmp-version=">, Group<f_Group>, Flags<[CC1Option, NoArgumentUnused]>;
 def fopenmp_EQ : Joined<["-"], "fopenmp=">, Group<f_Group>;
 def fopenmp_use_tls : Flag<["-"], "fopenmp-use-tls">, Group<f_Group>,
   Flags<[NoArgumentUnused, HelpHidden]>;
 def fnoopenmp_use_tls : Flag<["-"], "fnoopenmp-use-tls">, Group<f_Group>,
   Flags<[CC1Option, NoArgumentUnused, HelpHidden]>;
 def fopenmp_targets_EQ : CommaJoined<["-"], "fopenmp-targets=">, Flags<[DriverOption, CC1Option]>,
   HelpText<"Specify comma-separated list of triples OpenMP offloading targets to be supported">;
-def fopenmp_dump_offload_linker_script : Flag<["-"], "fopenmp-dump-offload-linker-script">,
-  Group<f_Group>, Flags<[NoArgumentUnused, HelpHidden]>;
 def fopenmp_relocatable_target : Flag<["-"], "fopenmp-relocatable-target">,
   Group<f_Group>, Flags<[CC1Option, NoArgumentUnused, HelpHidden]>;
 def fnoopenmp_relocatable_target : Flag<["-"], "fnoopenmp-relocatable-target">,
   Group<f_Group>, Flags<[CC1Option, NoArgumentUnused, HelpHidden]>;
 def fopenmp_simd : Flag<["-"], "fopenmp-simd">, Group<f_Group>, Flags<[CC1Option, NoArgumentUnused]>,
   HelpText<"Emit OpenMP code only for SIMD-based constructs.">;
 def fno_openmp_simd : Flag<["-"], "fno-openmp-simd">, Group<f_Group>, Flags<[CC1Option, NoArgumentUnused]>;
 def fopenmp_cuda_mode : Flag<["-"], "fopenmp-cuda-mode">, Group<f_Group>,

clang/include/clang/Driver/ToolChain.h

private:
 
   /// The list of toolchain specific path prefixes to search for programs.
   path_list ProgramPaths;
 
   mutable std::unique_ptr<Tool> Clang;
   mutable std::unique_ptr<Tool> Assemble;
   mutable std::unique_ptr<Tool> Link;
   mutable std::unique_ptr<Tool> OffloadBundler;
+  mutable std::unique_ptr<Tool> OffloadWrapper;
 
   Tool *getClang() const;
   Tool *getAssemble() const;
   Tool *getLink() const;
   Tool *getClangAs() const;
   Tool *getOffloadBundler() const;
+  Tool *getOffloadWrapper() const;
 
   mutable std::unique_ptr<SanitizerArgs> SanitizerArguments;
   mutable std::unique_ptr<XRayArgs> XRayArguments;
 
   /// The effective clang triple for the current Job.
   mutable llvm::Triple EffectiveTriple;
 
   /// Set the toolchain's effective clang triple.

clang/lib/CodeGen/CGOpenMPRuntime.h

private:
 
   /// Flag for keeping track of weather a target region has been emitted.
   bool HasEmittedTargetRegion = false;
 
   /// Flag for keeping track of weather a device routine has been emitted.
   /// Device routines are specific to the
   bool HasEmittedDeclareTargetRegion = false;
 
-  /// Creates and registers offloading binary descriptor for the current
-  /// compilation unit. The function that does the registration is returned.
-  llvm::Function *createOffloadingBinaryDescriptorRegistration();
-
   /// Creates all the offload entries in the current compilation unit
   /// along with the associated metadata.
   void createOffloadEntriesAndInfoMetadata();
 
   /// Loads all the offload entries information from the host IR
   /// metadata.
   void loadOffloadInfoMetadata();
 
public:
   /// if it was emitted successfully.
   /// \param GD Global to scan.
   virtual bool emitTargetGlobal(GlobalDecl GD);
 
   /// Creates and returns a registration function for when at least one
   /// requires directives was used in the current module.
   llvm::Function *emitRequiresDirectiveRegFun();
 
-  /// Creates the offloading descriptor in the event any target region
-  /// was emitted in the current module and return the function that registers
-  /// it.
-  virtual llvm::Function *emitRegistrationFunction();
+  /// Creates the offloading entry table in the event any target region
+  /// was emitted in the current module.
+  virtual void emitOffloadTables();
 
   /// Emits code for teams call of the \a OutlinedFn with
   /// variables captured in a record which address is stored in \a
   /// CapturedStruct.
   /// \param OutlinedFn Outlined function to be run by team masters. Type of
   /// this function is void(*)(kmp_int32 *, kmp_int32, struct context_vars*).
   /// \param CapturedVars A pointer to the record with the references to
   /// variables used in \a OutlinedFn function.
public:
   /// \param GD Variable declaration to emit.
   bool emitTargetGlobalVariable(GlobalDecl GD) override;
 
   /// Emit the global \a GD if it is meaningful for the target. Returns
   /// if it was emitted successfully.
   /// \param GD Global to scan.
   bool emitTargetGlobal(GlobalDecl GD) override;
 
-  /// Creates the offloading descriptor in the event any target region
-  /// was emitted in the current module and return the function that registers
-  /// it.
-  llvm::Function *emitRegistrationFunction() override;
+  /// Creates the offloading entry table in the event any target region
+  /// was emitted in the current module.
+  void emitOffloadTables() override;
 
   /// Emits code for teams call of the \a OutlinedFn with
   /// variables captured in a record which address is stored in \a
   /// CapturedStruct.
   /// \param OutlinedFn Outlined function to be run by team masters. Type of
   /// this function is void(*)(kmp_int32 *, kmp_int32, struct context_vars*).
   /// \param CapturedVars A pointer to the record with the references to
   /// variables used in \a OutlinedFn function.

clang/lib/CodeGen/CGOpenMPRuntime.cpp

 void CGOpenMPRuntime::OffloadEntriesInfoManagerTy::
     actOnDeviceGlobalVarEntriesInfo(
         const OffloadDeviceGlobalVarEntryInfoActTy &Action) {
   // Scan all target region entries and perform the provided action.
   for (const auto &E : OffloadEntriesDeviceGlobalVar)
     Action(E.getKey(), E.getValue());
 }
 
-llvm::Function *
-CGOpenMPRuntime::createOffloadingBinaryDescriptorRegistration() {
-  // If we don't have entries or if we are emitting code for the device, we
-  // don't need to do anything.
-  if (CGM.getLangOpts().OpenMPIsDevice || OffloadEntriesInfoManager.empty())
-    return nullptr;
-
-  llvm::Module &M = CGM.getModule();
-  ASTContext &C = CGM.getContext();
-
-  // Get list of devices we care about
-  const std::vector<llvm::Triple> &Devices = CGM.getLangOpts().OMPTargetTriples;
-
-  // We should be creating an offloading descriptor only if there are devices
-  // specified.
-  assert(!Devices.empty() && "No OpenMP offloading devices??");
-
-  // Create the external variables that will point to the begin and end of the
-  // host entries section. These will be defined by the linker.
-  llvm::Type *OffloadEntryTy =
-      CGM.getTypes().ConvertTypeForMem(getTgtOffloadEntryQTy());
-  std::string EntriesBeginName = getName({"omp_offloading", "entries_begin"});
-  auto *HostEntriesBegin = new llvm::GlobalVariable(
-      M, OffloadEntryTy, /*isConstant=*/true,
-      llvm::GlobalValue::ExternalLinkage, /*Initializer=*/nullptr,
-      EntriesBeginName);
-  std::string EntriesEndName = getName({"omp_offloading", "entries_end"});
-  auto *HostEntriesEnd =
-      new llvm::GlobalVariable(M, OffloadEntryTy, /*isConstant=*/true,
-                               llvm::GlobalValue::ExternalLinkage,
-                               /*Initializer=*/nullptr, EntriesEndName);
-
-  // Create all device images
-  auto *DeviceImageTy = cast<llvm::StructType>(
-      CGM.getTypes().ConvertTypeForMem(getTgtDeviceImageQTy()));
-  ConstantInitBuilder DeviceImagesBuilder(CGM);
-  ConstantArrayBuilder DeviceImagesEntries =
-      DeviceImagesBuilder.beginArray(DeviceImageTy);
-
-  for (const llvm::Triple &Device : Devices) {
-    StringRef T = Device.getTriple();
-    std::string BeginName = getName({"omp_offloading", "img_start", ""});
-    auto *ImgBegin = new llvm::GlobalVariable(
-        M, CGM.Int8Ty, /*isConstant=*/true,
-        llvm::GlobalValue::ExternalWeakLinkage,
-        /*Initializer=*/nullptr, Twine(BeginName).concat(T));
-    std::string EndName = getName({"omp_offloading", "img_end", ""});
-    auto *ImgEnd = new llvm::GlobalVariable(
-        M, CGM.Int8Ty, /*isConstant=*/true,
-        llvm::GlobalValue::ExternalWeakLinkage,
-        /*Initializer=*/nullptr, Twine(EndName).concat(T));
-
-    llvm::Constant *Data[] = {ImgBegin, ImgEnd, HostEntriesBegin,
-                              HostEntriesEnd};
-    createConstantGlobalStructAndAddToParent(CGM, getTgtDeviceImageQTy(), Data,
-                                             DeviceImagesEntries);
-  }
-
-  // Create device images global array.
-  std::string ImagesName = getName({"omp_offloading", "device_images"});
-  llvm::GlobalVariable *DeviceImages =
-      DeviceImagesEntries.finishAndCreateGlobal(ImagesName,
-                                                CGM.getPointerAlign(),
-                                                /*isConstant=*/true);
-  DeviceImages->setUnnamedAddr(llvm::GlobalValue::UnnamedAddr::Global);
-
-  // This is a Zero array to be used in the creation of the constant expressions
-  llvm::Constant *Index[] = {llvm::Constant::getNullValue(CGM.Int32Ty),
-                             llvm::Constant::getNullValue(CGM.Int32Ty)};
-
-  // Create the target region descriptor.
-  llvm::Constant *Data[] = {
-      llvm::ConstantInt::get(CGM.Int32Ty, Devices.size()),
-      llvm::ConstantExpr::getGetElementPtr(DeviceImages->getValueType(),
-                                           DeviceImages, Index),
-      HostEntriesBegin, HostEntriesEnd};
-  std::string Descriptor = getName({"omp_offloading", "descriptor"});
-  llvm::GlobalVariable *Desc = createGlobalStruct(
-      CGM, getTgtBinaryDescriptorQTy(), /*IsConstant=*/true, Data, Descriptor);
-
-  // Emit code to register or unregister the descriptor at execution
-  // startup or closing, respectively.
-
-  llvm::Function *UnRegFn;
-  {
-    FunctionArgList Args;
-    ImplicitParamDecl DummyPtr(C, C.VoidPtrTy, ImplicitParamDecl::Other);
-    Args.push_back(&DummyPtr);
-
-    CodeGenFunction CGF(CGM);
-    // Disable debug info for global (de-)initializer because they are not part
-    // of some particular construct.
-    CGF.disableDebugInfo();
-    const auto &FI =
-        CGM.getTypes().arrangeBuiltinFunctionDeclaration(C.VoidTy, Args);
-    llvm::FunctionType *FTy = CGM.getTypes().GetFunctionType(FI);
-    std::string UnregName = getName({"omp_offloading", "descriptor_unreg"});
-    UnRegFn = CGM.CreateGlobalInitOrDestructFunction(FTy, UnregName, FI);
-    CGF.StartFunction(GlobalDecl(), C.VoidTy, UnRegFn, FI, Args);
-    CGF.EmitRuntimeCall(createRuntimeFunction(OMPRTL__tgt_unregister_lib),
-                        Desc);
-    CGF.FinishFunction();
-  }
-  llvm::Function *RegFn;
-  {
-    CodeGenFunction CGF(CGM);
-    // Disable debug info for global (de-)initializer because they are not part
-    // of some particular construct.
-    CGF.disableDebugInfo();
-    const auto &FI = CGM.getTypes().arrangeNullaryFunction();
-    llvm::FunctionType *FTy = CGM.getTypes().GetFunctionType(FI);
-
-    // Encode offload target triples into the registration function name. It
-    // will serve as a comdat key for the registration/unregistration code for
-    // this particular combination of offloading targets.
-    SmallVector<StringRef, 4U> RegFnNameParts(Devices.size() + 2U);
-    RegFnNameParts[0] = "omp_offloading";
-    RegFnNameParts[1] = "descriptor_reg";
-    llvm::transform(Devices, std::next(RegFnNameParts.begin(), 2),
-                    [](const llvm::Triple &T) -> const std::string& {
-                      return T.getTriple();
-                    });
-    llvm::sort(std::next(RegFnNameParts.begin(), 2), RegFnNameParts.end());
-    std::string Descriptor = getName(RegFnNameParts);
-    RegFn = CGM.CreateGlobalInitOrDestructFunction(FTy, Descriptor, FI);
-    CGF.StartFunction(GlobalDecl(), C.VoidTy, RegFn, FI, FunctionArgList());
-    CGF.EmitRuntimeCall(createRuntimeFunction(OMPRTL__tgt_register_lib), Desc);
-    // Create a variable to drive the registration and unregistration of the
-    // descriptor, so we can reuse the logic that emits Ctors and Dtors.
-    ImplicitParamDecl RegUnregVar(C, C.getTranslationUnitDecl(),
-                                  SourceLocation(), nullptr, C.CharTy,
-                                  ImplicitParamDecl::Other);
-    CGM.getCXXABI().registerGlobalDtor(CGF, RegUnregVar, UnRegFn, Desc);
-    CGF.FinishFunction();
-  }
-  if (CGM.supportsCOMDAT()) {
-    // It is sufficient to call registration function only once, so create a
-    // COMDAT group for registration/unregistration functions and associated
-    // data. That would reduce startup time and code size. Registration
-    // function serves as a COMDAT group key.
-    llvm::Comdat *ComdatKey = M.getOrInsertComdat(RegFn->getName());
-    RegFn->setLinkage(llvm::GlobalValue::LinkOnceAnyLinkage);
-    RegFn->setVisibility(llvm::GlobalValue::HiddenVisibility);
-    RegFn->setComdat(ComdatKey);
-    UnRegFn->setComdat(ComdatKey);
-    DeviceImages->setComdat(ComdatKey);
-    Desc->setComdat(ComdatKey);
-  }
-  return RegFn;
-}
-
 void CGOpenMPRuntime::createOffloadEntry(
     llvm::Constant *ID, llvm::Constant *Addr, uint64_t Size, int32_t Flags,
     llvm::GlobalValue::LinkageTypes Linkage) {
   StringRef Name = Addr->getName();
   llvm::Module &M = CGM.getModule();
   llvm::LLVMContext &C = M.getContext();
 
   // Create constant string with the name.
if (HasRequiresUnifiedSharedMemory)
       Flags = OMP_REQ_UNIFIED_SHARED_MEMORY;
     CGF.EmitRuntimeCall(createRuntimeFunction(OMPRTL__tgt_register_requires),
         llvm::ConstantInt::get(CGM.Int64Ty, Flags));
     CGF.FinishFunction();
   }
   return RequiresRegFn;
 }
 
-llvm::Function *CGOpenMPRuntime::emitRegistrationFunction() {
-  // If we have offloading in the current module, we need to emit the entries
-  // now and register the offloading descriptor.
+void CGOpenMPRuntime::emitOffloadTables() {
+  // If we have offloading in the current module, we need to emit the entries.
   createOffloadEntriesAndInfoMetadata();
-
-  // Create and register the offloading binary descriptors. This is the main
-  // entity that captures all the information about offloading in the current
-  // compilation unit.
-  return createOffloadingBinaryDescriptorRegistration();
 }
 
 void CGOpenMPRuntime::emitTeamsCall(CodeGenFunction &CGF,
                                     const OMPExecutableDirective &D,
                                     SourceLocation Loc,
                                     llvm::Function *OutlinedFn,
                                     ArrayRef<llvm::Value *> CapturedVars) {
   if (!CGF.HaveInsertPoint())
     return;

 bool CGOpenMPSIMDRuntime::emitTargetGlobalVariable(GlobalDecl GD) {
   llvm_unreachable("Not supported in SIMD-only mode");
 }
 
 bool CGOpenMPSIMDRuntime::emitTargetGlobal(GlobalDecl GD) {
   return false;
 }
 
-llvm::Function *CGOpenMPSIMDRuntime::emitRegistrationFunction() {
-  return nullptr;
+void CGOpenMPSIMDRuntime::emitOffloadTables() {
 }
 
 void CGOpenMPSIMDRuntime::emitTeamsCall(CodeGenFunction &CGF,
                                         const OMPExecutableDirective &D,
                                         SourceLocation Loc,
                                         llvm::Function *OutlinedFn,
                                         ArrayRef<llvm::Value *> CapturedVars) {
   llvm_unreachable("Not supported in SIMD-only mode");

clang/lib/CodeGen/CodeGenModule.cpp

if (llvm::Function *CudaCtorFunction =
             CUDARuntime->makeModuleCtorFunction())
       AddGlobalCtor(CudaCtorFunction);
   }
   if (OpenMPRuntime) {
     if (llvm::Function *OpenMPRequiresDirectiveRegFun =
             OpenMPRuntime->emitRequiresDirectiveRegFun()) {
       AddGlobalCtor(OpenMPRequiresDirectiveRegFun, 0);
     }
-    if (llvm::Function *OpenMPRegistrationFunction =
-            OpenMPRuntime->emitRegistrationFunction()) {
-      auto ComdatKey = OpenMPRegistrationFunction->hasComdat() ?
-        OpenMPRegistrationFunction : nullptr;
-      AddGlobalCtor(OpenMPRegistrationFunction, 0, ComdatKey);
-    }
+    OpenMPRuntime->emitOffloadTables();
     OpenMPRuntime->clear();
   }
   if (PGOReader) {
     getModule().setProfileSummary(
         PGOReader->getSummary(/* UseCS */ false).getMD(VMContext),
         llvm::ProfileSummary::PSK_Instr);
     if (PGOStats.hasDiagnostics())
       PGOStats.reportDiagnostics(getDiags(), getCodeGenOpts().MainFileName);

clang/lib/Driver/Action.cpp

const char *Action::getClassName(ActionClass AC) {
   case LipoJobClass: return "lipo";
   case DsymutilJobClass: return "dsymutil";
   case VerifyDebugInfoJobClass: return "verify-debug-info";
   case VerifyPCHJobClass: return "verify-pch";
   case OffloadBundlingJobClass:
     return "clang-offload-bundler";
   case OffloadUnbundlingJobClass:
     return "clang-offload-unbundler";
+  case OffloadWrapperJobClass:
+    return "clang-offload-wrapper";
   }
 
   llvm_unreachable("invalid class");
 }
 
 void Action::propagateDeviceOffloadInfo(OffloadKind OKind, const char *OArch) {
   // Offload action set its own kinds on their dependences.
   if (Kind == OffloadClass)

 
 OffloadBundlingJobAction::OffloadBundlingJobAction(ActionList &Inputs)
     : JobAction(OffloadBundlingJobClass, Inputs, Inputs.back()->getType()) {}
 
 void OffloadUnbundlingJobAction::anchor() {}
 
 OffloadUnbundlingJobAction::OffloadUnbundlingJobAction(Action *Input)
     : JobAction(OffloadUnbundlingJobClass, Input, Input->getType()) {}
+
+void OffloadWrapperJobAction::anchor() {}
+
+OffloadWrapperJobAction::OffloadWrapperJobAction(ActionList &Inputs,
+                                                 types::ID Type)
+  : JobAction(OffloadWrapperJobClass, Inputs, Type) {}

clang/lib/Driver/Driver.cpp

public:
     }
 
     /// Update the state to include the provided host action \a HostAction as a
     /// dependency of the current device action. By default it is inactive.
     virtual ActionBuilderReturnCode addDeviceDepences(Action *HostAction) {
       return ABRT_Inactive;
     }
 
-    /// Append top level actions generated by the builder. Return true if errors
-    /// were found.
+    /// Append top level actions generated by the builder.
     virtual void appendTopLevelActions(ActionList &AL) {}
 
-    /// Append linker actions generated by the builder. Return true if errors
-    /// were found.
+    /// Append linker actions generated by the builder.
+    virtual void appendLinkActions(ActionList &AL) {}
+
+    /// Append linker actions generated by the builder.
     virtual void appendLinkDependences(OffloadAction::DeviceDependences &DA) {}
 
     /// Initialize the builder. Return true if any initialization errors are
     /// found.
     virtual bool initialize() { return false; }
 
     /// Return true if the builder can use bundling/unbundling.
     virtual bool canUseBundlerUnbundler() const { return false; }
void appendTopLevelActions(ActionList &AL) override {
         Dep.add(*A, **TI, /*BoundArch=*/nullptr, Action::OFK_OpenMP);
         AL.push_back(C.MakeAction<OffloadAction>(Dep, A->getType()));
         ++TI;
       }
       // We no longer need the action stored in this builder.
       OpenMPDeviceActions.clear();
     }
 
-    void appendLinkDependences(OffloadAction::DeviceDependences &DA) override {
+    void appendLinkActions(ActionList &AL) override {
       assert(ToolChains.size() == DeviceLinkerInputs.size() &&
              "Toolchains and linker inputs sizes do not match.");
 
       // Append a new link action for each device.
-      auto TC = ToolChains.begin();
+      auto TI = ToolChains.begin();
       for (auto &LI : DeviceLinkerInputs) {
-        auto *DeviceLinkAction =
-            C.MakeAction<LinkJobAction>(LI, types::TY_Image);
-        DA.add(*DeviceLinkAction, **TC, /*BoundArch=*/nullptr,
-               Action::OFK_OpenMP);
-        ++TC;
-      }
+        auto *A =  C.MakeAction<LinkJobAction>(LI, types::TY_Image);
+        OffloadAction::DeviceDependences Dep;
+        Dep.add(*A, **TI, /*BoundArch=*/nullptr, Action::OFK_OpenMP);
+        AL.push_back(C.MakeAction<OffloadAction>(Dep, A->getType()));
+        ++TI;
+      }
+      DeviceLinkerInputs.clear();
+
+    void appendLinkDependences(OffloadAction::DeviceDependences &DA) override {
     }
 
     bool initialize() override {
       // Get the OpenMP toolchains. If we don't get any, the action builder will
       // know there is nothing to do related to OpenMP offloading.
       auto OpenMPTCRange = C.getOffloadToolChains<Action::OFK_OpenMP>();
       for (auto TI = OpenMPTCRange.first, TE = OpenMPTCRange.second; TI != TE;
            ++TI)
bool appendTopLevelActions(ActionList &AL, Action *HostAction,
     // Propagate to the current host action (if any) the offload information
     // associated with the current input.
     if (HostAction)
       HostAction->propagateHostOffloadInfo(InputArgToOffloadKindMap[InputArg],
                                            /*BoundArch=*/nullptr);
     return false;
   }
 
+  Action* makeHostLinkAction() {
+    // Build a list of device linking actions.
+    ActionList DeviceAL;
+    for (auto *SB : SpecializedBuilders) {
+      if (!SB->isValid())
+        continue;
+      SB->appendLinkActions(DeviceAL);
+    }
+
+    if (DeviceAL.empty())
+      return nullptr;
+
+    // Create wrapper bitcode from the result of device link actions and compile
+    // it to an object which will be added to the host link command.
+    auto *BC = C.MakeAction<OffloadWrapperJobAction>(DeviceAL, types::TY_LLVM_BC);
+    auto *ASM = C.MakeAction<BackendJobAction>(BC, types::TY_PP_Asm);
+    return C.MakeAction<AssembleJobAction>(ASM, types::TY_Object);
+  }
+
   /// Processes the host linker action. This currently consists of replacing it
   /// with an offload action if there are device link objects and propagate to
   /// the host action all the offload kinds used in the current compilation. The
   /// resulting action is returned.
   Action *processHostLinkAction(Action *HostAction) {
     // Add all the dependences from the device linking actions.
     OffloadAction::DeviceDependences DDeps;
     for (auto *SB : SpecializedBuilders) {
if (Current)
       Actions.push_back(Current);
 
     // Add any top level actions generated for offloading.
     OffloadBuilder.appendTopLevelActions(Actions, Current, InputArg);
   }
 
   // Add a link action if necessary.
   if (!LinkerInputs.empty()) {
+    if (auto *Wrapper = OffloadBuilder.makeHostLinkAction())
+      LinkerInputs.push_back(Wrapper);
     Action *LA = C.MakeAction<LinkJobAction>(LinkerInputs, types::TY_Image);
     LA = OffloadBuilder.processHostLinkAction(LA);
     Actions.push_back(LA);
   }
 
   // If we are linking, claim any options which are obviously only used for
   // compilation.
   if (FinalPhase == phases::Link && PL.size() == 1) {
const Tool *combineAssembleBackend(ArrayRef<JobActionInfo> ActionInfo,
                                      ActionList &CollapsedOffloadAction) {
     if (ActionInfo.size() < 2 || !canCollapseAssembleAction())
       return nullptr;
     auto *AJ = dyn_cast<AssembleJobAction>(ActionInfo[0].JA);
     auto *BJ = dyn_cast<BackendJobAction>(ActionInfo[1].JA);
     if (!AJ || !BJ)
       return nullptr;
 
-    // Retrieve the compile job, backend action must always be preceded by one.
-    ActionList CompileJobOffloadActions;
-    auto *CJ = getPrevDependentAction(BJ->getInputs(), CompileJobOffloadActions,
-                                      /*CanBeCollapsed=*/false);
-    if (!AJ || !BJ || !CJ)
-      return nullptr;
-
-    assert(isa<CompileJobAction>(CJ) &&
-           "Expecting compile job preceding backend job.");
-
-    // Get compiler tool.
-    const Tool *T = TC.SelectTool(*CJ);
+    // Get backend tool.
+    const Tool *T = TC.SelectTool(*BJ);
     if (!T)
       return nullptr;
 
     if (!T->hasIntegratedAssembler())
       return nullptr;
 
     Inputs = BJ->getInputs();
     AppendCollapsedOffloadAction(CollapsedOffloadAction, ActionInfo,
if (auto *UA = dyn_cast<OffloadUnbundlingJobAction>(JA)) {
     Result = InputInfo(A, BaseInput);
   else {
     // We only have to generate a prefix for the host if this is not a top-level
     // action.
     std::string OffloadingPrefix = Action::GetOffloadingFileNamePrefix(
         A->getOffloadingDeviceKind(), TC->getTriple().normalize(),
         /*CreatePrefixForHost=*/!!A->getOffloadingHostActiveKinds() &&
             !AtTopLevel);
+    if (isa<OffloadWrapperJobAction>(JA)) {
+      OffloadingPrefix += "-devices";
+      if (Arg *FinalOutput = C.getArgs().getLastArg(options::OPT_o))
+        BaseInput = FinalOutput->getValue();
+      else
+        BaseInput = getDefaultImageName();
+    }
     Result = InputInfo(A, GetNamedOutputPath(C, *JA, BaseInput, BoundArch,
                                              AtTopLevel, MultipleArchs,
                                              OffloadingPrefix),
                        BaseInput);
   }
 
   if (CCCPrintBindings && !CCGenDiagnostics) {
     llvm::errs() << "# \"" << T->getToolChain().getTripleString() << '"'

clang/lib/Driver/ToolChain.cpp

 }
 
 Tool *ToolChain::getOffloadBundler() const {
   if (!OffloadBundler)
     OffloadBundler.reset(new tools::OffloadBundler(*this));
   return OffloadBundler.get();
 }
 
+Tool *ToolChain::getOffloadWrapper() const {
+  if (!OffloadWrapper)
+    OffloadWrapper.reset(new tools::OffloadWrapper(*this));
+  return OffloadWrapper.get();
+}
+
 Tool *ToolChain::getTool(Action::ActionClass AC) const {
   switch (AC) {
   case Action::AssembleJobClass:
     return getAssemble();
 
   case Action::LinkJobClass:
     return getLink();
 
Tool *ToolChain::getTool(Action::ActionClass AC) const {
   case Action::MigrateJobClass:
   case Action::VerifyPCHJobClass:
   case Action::BackendJobClass:
     return getClang();
 
   case Action::OffloadBundlingJobClass:
   case Action::OffloadUnbundlingJobClass:
     return getOffloadBundler();
+
+  case Action::OffloadWrapperJobClass:
+    return getOffloadWrapper();
   }
 
   llvm_unreachable("Invalid tool kind.");
 }
 
 static StringRef getArchNameForCompilerRTLib(const ToolChain &TC,
                                              const ArgList &Args) {
   const llvm::Triple &Triple = TC.getTriple();

clang/lib/Driver/ToolChains/Clang.h

void ConstructJob(Compilation &C, const JobAction &JA,
                     const llvm::opt::ArgList &TCArgs,
                     const char *LinkingOutput) const override;
   void ConstructJobMultipleOutputs(Compilation &C, const JobAction &JA,
                                    const InputInfoList &Outputs,
                                    const InputInfoList &Inputs,
                                    const llvm::opt::ArgList &TCArgs,
                                    const char *LinkingOutput) const override;
 };
+
+/// Offload wrapper tool.
+class LLVM_LIBRARY_VISIBILITY OffloadWrapper final : public Tool {
+public:
+  OffloadWrapper(const ToolChain &TC)
+      : Tool("offload wrapper", "clang-offload-wrapper", TC) {}
+
+  bool hasIntegratedCPP() const override { return false; }
+  void ConstructJob(Compilation &C, const JobAction &JA,
+                    const InputInfo &Output, const InputInfoList &Inputs,
+                    const llvm::opt::ArgList &TCArgs,
+                    const char *LinkingOutput) const override;
+};
+
 } // end namespace tools
 
 } // end namespace driver
 } // end namespace clang
 
 #endif // LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_CLANG_H

clang/lib/Driver/ToolChains/Clang.cpp

void OffloadBundler::ConstructJobMultipleOutputs(
   CmdArgs.push_back("-unbundle");
 
   // All the inputs are encoded as commands.
   C.addCommand(llvm::make_unique<Command>(
       JA, *this,
       TCArgs.MakeArgString(getToolChain().GetProgramPath(getShortName())),
       CmdArgs, None));
 }
+
+void OffloadWrapper::ConstructJob(Compilation &C, const JobAction &JA,
+                                  const InputInfo &Output,
+                                  const InputInfoList &Inputs,
+                                  const ArgList &Args,
+                                  const char *LinkingOutput) const {
+  ArgStringList CmdArgs;
+
+  const auto &Triple = getToolChain().getEffectiveTriple();
+
+  // Add the "effective" target triple.
+  CmdArgs.push_back("-target");
+  CmdArgs.push_back(Args.MakeArgString(Triple.getTriple()));
+
+  // Add the output file name.
+  assert(Output.isFilename() && "Invalid output.");
+  CmdArgs.push_back("-o");
+  CmdArgs.push_back(Output.getFilename());
+
+  // Add inputs.
+  for (const auto &I : Inputs) {
+    assert(I.isFilename() && "Invalid input.");
+    CmdArgs.push_back(I.getFilename());
+  }
+
+  C.addCommand(llvm::make_unique<Command>(
+    JA, *this,
+    Args.MakeArgString(getToolChain().GetProgramPath(getShortName())),
+    CmdArgs, Inputs));
+}

clang/lib/Driver/ToolChains/CommonArgs.h

 
 void linkXRayRuntimeDeps(const ToolChain &TC,
                          llvm::opt::ArgStringList &CmdArgs);
 
 void AddRunTimeLibs(const ToolChain &TC, const Driver &D,
                     llvm::opt::ArgStringList &CmdArgs,
                     const llvm::opt::ArgList &Args);
 
-void AddOpenMPLinkerScript(const ToolChain &TC, Compilation &C,
-                           const InputInfo &Output,
-                           const InputInfoList &Inputs,
-                           const llvm::opt::ArgList &Args,
-                           llvm::opt::ArgStringList &CmdArgs,
-                           const JobAction &JA);
-
 void AddHIPLinkerScript(const ToolChain &TC, Compilation &C,
                         const InputInfo &Output, const InputInfoList &Inputs,
                         const llvm::opt::ArgList &Args,
                         llvm::opt::ArgStringList &CmdArgs, const JobAction &JA,
                         const Tool &T);
 
 const char *SplitDebugName(const llvm::opt::ArgList &Args,
                            const InputInfo &Input, const InputInfo &Output);

clang/lib/Driver/ToolChains/CommonArgs.cpp

if (TC.getTriple().isKnownWindowsMSVCEnvironment()) {
             << Args.getLastArg(options::OPT_rtlib_EQ)->getValue() << "MSVC";
       }
     } else
       AddLibgcc(TC, D, CmdArgs, Args);
     break;
   }
 }
 
-/// Add OpenMP linker script arguments at the end of the argument list so that
-/// the fat binary is built by embedding each of the device images into the
-/// host. The linker script also defines a few symbols required by the code
-/// generation so that the images can be easily retrieved at runtime by the
-/// offloading library. This should be used only in tool chains that support
-/// linker scripts.
-void tools::AddOpenMPLinkerScript(const ToolChain &TC, Compilation &C,
-                                  const InputInfo &Output,
-                                  const InputInfoList &Inputs,
-                                  const ArgList &Args, ArgStringList &CmdArgs,
-                                  const JobAction &JA) {
-
-  // If this is not an OpenMP host toolchain, we don't need to do anything.
-  if (!JA.isHostOffloading(Action::OFK_OpenMP))
-    return;
-
-  // Create temporary linker script. Keep it if save-temps is enabled.
-  const char *LKS;
-  SmallString<256> Name = llvm::sys::path::filename(Output.getFilename());
-  if (C.getDriver().isSaveTempsEnabled()) {
-    llvm::sys::path::replace_extension(Name, "lk");
-    LKS = C.getArgs().MakeArgString(Name.c_str());
-  } else {
-    llvm::sys::path::replace_extension(Name, "");
-    Name = C.getDriver().GetTemporaryPath(Name, "lk");
-    LKS = C.addTempFile(C.getArgs().MakeArgString(Name.c_str()));
-  }
-
-  // Add linker script option to the command.
-  CmdArgs.push_back("-T");
-  CmdArgs.push_back(LKS);
-
-  // Create a buffer to write the contents of the linker script.
-  std::string LksBuffer;
-  llvm::raw_string_ostream LksStream(LksBuffer);
-
-  // Get the OpenMP offload tool chains so that we can extract the triple
-  // associated with each device input.
-  auto OpenMPToolChains = C.getOffloadToolChains<Action::OFK_OpenMP>();
-  assert(OpenMPToolChains.first != OpenMPToolChains.second &&
-         "No OpenMP toolchains??");
-
-  // Track the input file name and device triple in order to build the script,
-  // inserting binaries in the designated sections.
-  SmallVector<std::pair<std::string, const char *>, 8> InputBinaryInfo;
-
-  // Add commands to embed target binaries. We ensure that each section and
-  // image is 16-byte aligned. This is not mandatory, but increases the
-  // likelihood of data to be aligned with a cache block in several main host
-  // machines.
-  LksStream << "/*\n";
-  LksStream << "       OpenMP Offload Linker Script\n";
-  LksStream << " *** Automatically generated by Clang ***\n";
-  LksStream << "*/\n";
-  LksStream << "TARGET(binary)\n";
-  auto DTC = OpenMPToolChains.first;
-  for (auto &II : Inputs) {
-    const Action *A = II.getAction();
-    // Is this a device linking action?
-    if (A && isa<LinkJobAction>(A) &&
-        A->isDeviceOffloading(Action::OFK_OpenMP)) {
-      assert(DTC != OpenMPToolChains.second &&
-             "More device inputs than device toolchains??");
-      InputBinaryInfo.push_back(std::make_pair(
-          DTC->second->getTriple().normalize(), II.getFilename()));
-      ++DTC;
-      LksStream << "INPUT(" << II.getFilename() << ")\n";
-    }
-  }
-
-  assert(DTC == OpenMPToolChains.second &&
-         "Less device inputs than device toolchains??");
-
-  LksStream << "SECTIONS\n";
-  LksStream << "{\n";
-
-  // Put each target binary into a separate section.
-  for (const auto &BI : InputBinaryInfo) {
-    LksStream << "  .omp_offloading." << BI.first << " :\n";
-    LksStream << "  ALIGN(0x10)\n";
-    LksStream << "  {\n";
-    LksStream << "    PROVIDE_HIDDEN(.omp_offloading.img_start." << BI.first
-              << " = .);\n";
-    LksStream << "    " << BI.second << "\n";
-    LksStream << "    PROVIDE_HIDDEN(.omp_offloading.img_end." << BI.first
-              << " = .);\n";
-    LksStream << "  }\n";
-  }
-
-  // Add commands to define host entries begin and end. We use 1-byte subalign
-  // so that the linker does not add any padding and the elements in this
-  // section form an array.
-  LksStream << "  .omp_offloading.entries :\n";
-  LksStream << "  ALIGN(0x10)\n";
-  LksStream << "  SUBALIGN(0x01)\n";
-  LksStream << "  {\n";
-  LksStream << "    PROVIDE_HIDDEN(.omp_offloading.entries_begin = .);\n";
-  LksStream << "    *(.omp_offloading.entries)\n";
-  LksStream << "    PROVIDE_HIDDEN(.omp_offloading.entries_end = .);\n";
-  LksStream << "  }\n";
-  LksStream << "}\n";
-  LksStream << "INSERT BEFORE .data\n";
-  LksStream.flush();
-
-  // Dump the contents of the linker script if the user requested that. We
-  // support this option to enable testing of behavior with -###.
-  if (C.getArgs().hasArg(options::OPT_fopenmp_dump_offload_linker_script))
-    llvm::errs() << LksBuffer;
-
-  // If this is a dry run, do not create the linker script file.
-  if (C.getArgs().hasArg(options::OPT__HASH_HASH_HASH))
-    return;
-
-  // Open script file and write the contents.
-  std::error_code EC;
-  llvm::raw_fd_ostream Lksf(LKS, EC, llvm::sys::fs::F_None);
-
-  if (EC) {
-    C.getDriver().Diag(clang::diag::err_unable_to_make_temp) << EC.message();
-    return;
-  }
-
-  Lksf << LksBuffer;
-}
-
 /// Add HIP linker script arguments at the end of the argument list so that
 /// the fat binary is built by embedding the device images into the host. The
 /// linker script also defines a symbol required by the code generation so that
 /// the image can be retrieved at runtime. This should be used only in tool
 /// chains that support linker scripts.
 void tools::AddHIPLinkerScript(const ToolChain &TC, Compilation &C,
                                const InputInfo &Output,
                                const InputInfoList &Inputs, const ArgList &Args,

clang/lib/Driver/ToolChains/Cuda.cpp

if (!II.isFilename())
       continue;
 
     const char *CubinF = C.addTempFile(
         C.getArgs().MakeArgString(getToolChain().getInputFilename(II)));
 
     CmdArgs.push_back(CubinF);
   }
 
-  AddOpenMPLinkerScript(getToolChain(), C, Output, Inputs, Args, CmdArgs, JA);
-
   const char *Exec =
       Args.MakeArgString(getToolChain().GetProgramPath("nvlink"));
   C.addCommand(llvm::make_unique<Command>(JA, *this, Exec, CmdArgs, Inputs));
 }
 
 /// CUDA toolchain.  Our assembler is ptxas, and our "linker" is fatbinary,
 /// which isn't properly a linker but nonetheless performs the step of stitching
 /// together object files from the assembler into a single blob.

clang/lib/Driver/ToolChains/Gnu.cpp

else if (HasCRTBeginEndFiles) {
           crtbegin = isAndroid ? "crtbegin_so.o" : "crtbeginS.o";
         else if (IsPIE || IsStaticPIE)
           crtbegin = isAndroid ? "crtbegin_dynamic.o" : "crtbeginS.o";
         else
           crtbegin = isAndroid ? "crtbegin_dynamic.o" : "crtbegin.o";
         P = ToolChain.GetFilePath(crtbegin);
       }
       CmdArgs.push_back(Args.MakeArgString(P));
-    }
+    }
 
+    if (JA.isHostOffloading(Action::OFK_OpenMP)) {
+      auto P = ToolChain.GetFilePath("omptargetbegin.o");
+      if (ToolChain.getVFS().exists(P))
+        CmdArgs.push_back(Args.MakeArgString(P));
+    }
+
     // Add crtfastmath.o if available and fast math is enabled.
     ToolChain.AddFastMathRuntimeIfAvailable(Args, CmdArgs);
   }
 
   Args.AddAllArgs(CmdArgs, options::OPT_L);
   Args.AddAllArgs(CmdArgs, options::OPT_u);
 
   ToolChain.AddFilePathLibArgs(Args, CmdArgs);
if (!Args.hasArg(options::OPT_nodefaultlibs)) {
       // Add IAMCU specific libs (outside the group), if needed.
       if (IsIAMCU) {
         CmdArgs.push_back("--as-needed");
         CmdArgs.push_back("-lsoftfp");
         CmdArgs.push_back("--no-as-needed");
       }
     }
 
+    if (JA.isHostOffloading(Action::OFK_OpenMP)) {
+      auto P = ToolChain.GetFilePath("omptargetend.o");
+      if (ToolChain.getVFS().exists(P))
+        CmdArgs.push_back(Args.MakeArgString(P));
+    }
+
     if (!Args.hasArg(options::OPT_nostartfiles) && !IsIAMCU) {
       if (HasCRTBeginEndFiles) {
         std::string P;
         if (ToolChain.GetRuntimeLibType(Args) == ToolChain::RLT_CompilerRT &&
             !isAndroid) {
           std::string crtend = ToolChain.getCompilerRT(Args, "crtend",
                                                        ToolChain::FT_Object);
           if (ToolChain.getVFS().exists(crtend))
if (!Args.hasArg(options::OPT_nostartfiles) && !IsIAMCU) {
         }
         CmdArgs.push_back(Args.MakeArgString(P));
       }
       if (!isAndroid)
         CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath("crtn.o")));
     }
   }
 
-  // Add OpenMP offloading linker script args if required.
-  AddOpenMPLinkerScript(getToolChain(), C, Output, Inputs, Args, CmdArgs, JA);
-
   // Add HIP offloading linker script args if required.
   AddHIPLinkerScript(getToolChain(), C, Output, Inputs, Args, CmdArgs, JA,
                      *this);
 
   const char *Exec = Args.MakeArgString(ToolChain.GetLinkerPath());
   C.addCommand(llvm::make_unique<Command>(JA, *this, Exec, CmdArgs, Inputs));
 }
 

clang/test/Driver/clang-offload-wrapper.ll

+// REQUIRES: x86-registered-target
+
+//
+// Check help message.
+//
+// RUN: clang-offload-wrapper --help | FileCheck %s --check-prefix CHECK-HELP
+// CHECK-HELP: {{.*}}OVERVIEW: A tool to create a wrapper bitcode for offload target binaries.
+// CHECK-HELP: {{.*}}Takes offload target binaries as input and produces bitcode file containing
+// CHECK-HELP: {{.*}}target binaries packaged as data and initialization code which registers target
+// CHECK-HELP: {{.*}}binaries in offload runtime.
+// CHECK-HELP: {{.*}}USAGE: clang-offload-wrapper [options] <input  files>
+// CHECK-HELP: {{.*}}-o=<filename>    - Output filename
+// CHECK-HELP: {{.*}}-target=<triple> - Target triple
+
+//
+// Generate a file to wrap.
+//
+// RUN: echo 'Content of device file' > %t.tgt
+
+//
+// Check bitcode produced by the wrapper tool.
+//
+// RUN: clang-offload-wrapper -target=x86_64-pc-linux-gnu -o - %t.tgt | llvm-dis | FileCheck %s --check-prefix CHECK-IR
+
+// CHECK-IR: target triple = "x86_64-pc-linux-gnu"
+
+// CHECK-IR-DAG: [[ENTTY:%.+]] = type { i8*, i8*, i{{32|64}}, i32, i32 }
+// CHECK-IR-DAG: [[IMAGETY:%.+]] = type { i8*, i8*, [[ENTTY]]*, [[ENTTY]]* }
+// CHECK-IR-DAG: [[DESCTY:%.+]] = type { i32, [[IMAGETY]]*, [[ENTTY]]*, [[ENTTY]]* }
+
+// CHECK-IR: [[ENTBEGIN:@.+]] = external constant [[ENTTY]]
+// CHECK-IR: [[ENTEND:@.+]] = external constant [[ENTTY]]
+
+// CHECK-IR: [[BIN:@.+]] = internal unnamed_addr constant [[BINTY:\[[0-9]+ x i8\]]] c"Content of device file{{.+}}"
+
+// CHECK-IR: [[IMAGES:@.+]] = internal unnamed_addr constant [1 x [[IMAGETY]]] [{{.+}} { i8* getelementptr inbounds ([[BINTY]], [[BINTY]]* [[BIN]], i64 0, i64 0), i8* getelementptr inbounds ([[BINTY]], [[BINTY]]* [[BIN]], i64 1, i64 0), [[ENTTY]]* [[ENTBEGIN]], [[ENTTY]]* [[ENTEND]] }]
+
+// CHECK-IR: [[DESC:@.+]] = internal constant [[DESCTY]] { i32 1, [[IMAGETY]]* getelementptr inbounds ([1 x [[IMAGETY]]], [1 x [[IMAGETY]]]* [[IMAGES]], i64 0, i64 0), [[ENTTY]]* [[ENTBEGIN]], [[ENTTY]]* [[ENTEND]] }
+
+// CHECK-IR: @llvm.global_ctors = appending global [1 x { i32, void ()*, i8* }] [{ i32, void ()*, i8* } { i32 0, void ()* [[REGFN:@.+]], i8* null }]
+// CHECK-IR: @llvm.global_dtors = appending global [1 x { i32, void ()*, i8* }] [{ i32, void ()*, i8* } { i32 0, void ()* [[UNREGFN:@.+]], i8* null }]
+
+// CHECK-IR: define internal void [[REGFN]]()
+// CHECK-IR:   call void @__tgt_register_lib([[DESCTY]]* [[DESC]])
+// CHECK-IR:   ret void
+
+// CHECK-IR: declare void @__tgt_register_lib([[DESCTY]]*)
+
+// CHECK-IR: define internal void [[UNREGFN]]()
+// CHECK-IR:   call void @__tgt_unregister_lib([[DESCTY]]* [[DESC]])
+// CHECK-IR:   ret void
+
+// CHECK-IR: declare void @__tgt_unregister_lib([[DESCTY]]*)

clang/test/Driver/openmp-offload-gpu.c

 // RUN:   %clang -### -no-canonical-prefixes -target powerpc64le-unknown-linux-gnu -fopenmp=libomp \
 // RUN:          -fopenmp-targets=nvptx64-nvidia-cuda -save-temps %s 2>&1 \
 // RUN:   | FileCheck -check-prefix=CHK-CUBIN-NVLINK %s
 /// Check cubin file generation and usage by nvlink when toolchain has BindArchAction
 // RUN:   %clang -### -no-canonical-prefixes -target x86_64-apple-darwin17.0.0 -fopenmp=libomp \
 // RUN:          -fopenmp-targets=nvptx64-nvidia-cuda %s 2>&1 \
 // RUN:   | FileCheck -check-prefix=CHK-CUBIN-NVLINK %s
 
-// CHK-CUBIN-NVLINK: clang{{.*}}" "-o" "[[PTX:.*\.s]]"
+// CHK-CUBIN-NVLINK: clang{{.*}}" {{.*}}"-fopenmp-is-device" {{.*}}"-o" "[[PTX:.*\.s]]"
 // CHK-CUBIN-NVLINK-NEXT: ptxas{{.*}}" "--output-file" "[[CUBIN:.*\.cubin]]" {{.*}}"[[PTX]]"
 // CHK-CUBIN-NVLINK-NEXT: nvlink{{.*}}" {{.*}}"[[CUBIN]]"
 
 /// ###########################################################################
 
 /// Check unbundlink of assembly file, cubin file generation and usage by nvlink
 // RUN:   touch %t.s
 // RUN:   %clang -### -target powerpc64le-unknown-linux-gnu -fopenmp=libomp -fopenmp-targets=nvptx64-nvidia-cuda \

clang/test/Driver/openmp-offload.c

 /// action.
 // RUN:   %clang -ccc-print-phases -fopenmp=libomp -target powerpc64le-ibm-linux-gnu -fopenmp-targets=x86_64-pc-linux-gnu %s 2>&1 \
 // RUN:   | FileCheck -check-prefix=CHK-PHASES %s
 // CHK-PHASES: 0: input, "[[INPUT:.+\.c]]", c, (host-openmp)
 // CHK-PHASES: 1: preprocessor, {0}, cpp-output, (host-openmp)
 // CHK-PHASES: 2: compiler, {1}, ir, (host-openmp)
 // CHK-PHASES: 3: backend, {2}, assembler, (host-openmp)
 // CHK-PHASES: 4: assembler, {3}, object, (host-openmp)
-// CHK-PHASES: 5: linker, {4}, image, (host-openmp)
-// CHK-PHASES: 6: input, "[[INPUT]]", c, (device-openmp)
-// CHK-PHASES: 7: preprocessor, {6}, cpp-output, (device-openmp)
-// CHK-PHASES: 8: compiler, {7}, ir, (device-openmp)
-// CHK-PHASES: 9: offload, "host-openmp (powerpc64le-ibm-linux-gnu)" {2}, "device-openmp (x86_64-pc-linux-gnu)" {8}, ir
-// CHK-PHASES: 10: backend, {9}, assembler, (device-openmp)
-// CHK-PHASES: 11: assembler, {10}, object, (device-openmp)
-// CHK-PHASES: 12: linker, {11}, image, (device-openmp)
-// CHK-PHASES: 13: offload, "host-openmp (powerpc64le-ibm-linux-gnu)" {5}, "device-openmp (x86_64-pc-linux-gnu)" {12}, image
+// CHK-PHASES: 5: input, "[[INPUT]]", c, (device-openmp)
+// CHK-PHASES: 6: preprocessor, {5}, cpp-output, (device-openmp)
+// CHK-PHASES: 7: compiler, {6}, ir, (device-openmp)
+// CHK-PHASES: 8: offload, "host-openmp (powerpc64le-ibm-linux-gnu)" {2}, "device-openmp (x86_64-pc-linux-gnu)" {7}, ir
+// CHK-PHASES: 9: backend, {8}, assembler, (device-openmp)
+// CHK-PHASES: 10: assembler, {9}, object, (device-openmp)
+// CHK-PHASES: 11: linker, {10}, image, (device-openmp)
+// CHK-PHASES: 12: offload, "device-openmp (x86_64-pc-linux-gnu)" {11}, image
+// CHK-PHASES: 13: clang-offload-wrapper, {12}, ir, (host-openmp)
+// CHK-PHASES: 14: backend, {13}, assembler, (host-openmp)
+// CHK-PHASES: 15: assembler, {14}, object, (host-openmp)
+// CHK-PHASES: 16: linker, {4, 15}, image, (host-openmp)
 
 /// ###########################################################################
 
 /// Check the phases when using multiple targets. Here we also add a library to
 /// make sure it is treated as input by the device.
 // RUN:   %clang -ccc-print-phases -lsomelib -fopenmp=libomp -target powerpc64-ibm-linux-gnu -fopenmp-targets=x86_64-pc-linux-gnu,powerpc64-ibm-linux-gnu %s 2>&1 \
 // RUN:   | FileCheck -check-prefix=CHK-PHASES-LIB %s
 // CHK-PHASES-LIB: 0: input, "somelib", object, (host-openmp)
 // CHK-PHASES-LIB: 1: input, "[[INPUT:.+\.c]]", c, (host-openmp)
 // CHK-PHASES-LIB: 2: preprocessor, {1}, cpp-output, (host-openmp)
 // CHK-PHASES-LIB: 3: compiler, {2}, ir, (host-openmp)
 // CHK-PHASES-LIB: 4: backend, {3}, assembler, (host-openmp)
 // CHK-PHASES-LIB: 5: assembler, {4}, object, (host-openmp)
-// CHK-PHASES-LIB: 6: linker, {0, 5}, image, (host-openmp)
-// CHK-PHASES-LIB: 7: input, "somelib", object, (device-openmp)
-// CHK-PHASES-LIB: 8: input, "[[INPUT]]", c, (device-openmp)
-// CHK-PHASES-LIB: 9: preprocessor, {8}, cpp-output, (device-openmp)
-// CHK-PHASES-LIB: 10: compiler, {9}, ir, (device-openmp)
-// CHK-PHASES-LIB: 11: offload, "host-openmp (powerpc64-ibm-linux-gnu)" {3}, "device-openmp (x86_64-pc-linux-gnu)" {10}, ir
-// CHK-PHASES-LIB: 12: backend, {11}, assembler, (device-openmp)
-// CHK-PHASES-LIB: 13: assembler, {12}, object, (device-openmp)
-// CHK-PHASES-LIB: 14: linker, {7, 13}, image, (device-openmp)
+// CHK-PHASES-LIB: 6: input, "somelib", object, (device-openmp)
+// CHK-PHASES-LIB: 7: input, "[[INPUT]]", c, (device-openmp)
+// CHK-PHASES-LIB: 8: preprocessor, {7}, cpp-output, (device-openmp)
+// CHK-PHASES-LIB: 9: compiler, {8}, ir, (device-openmp)
+// CHK-PHASES-LIB: 10: offload, "host-openmp (powerpc64-ibm-linux-gnu)" {3}, "device-openmp (x86_64-pc-linux-gnu)" {9}, ir
+// CHK-PHASES-LIB: 11: backend, {10}, assembler, (device-openmp)
+// CHK-PHASES-LIB: 12: assembler, {11}, object, (device-openmp)
+// CHK-PHASES-LIB: 13: linker, {6, 12}, image, (device-openmp)
+// CHK-PHASES-LIB: 14: offload, "device-openmp (x86_64-pc-linux-gnu)" {13}, image
 // CHK-PHASES-LIB: 15: input, "somelib", object, (device-openmp)
 // CHK-PHASES-LIB: 16: input, "[[INPUT]]", c, (device-openmp)
 // CHK-PHASES-LIB: 17: preprocessor, {16}, cpp-output, (device-openmp)
 // CHK-PHASES-LIB: 18: compiler, {17}, ir, (device-openmp)
 // CHK-PHASES-LIB: 19: offload, "host-openmp (powerpc64-ibm-linux-gnu)" {3}, "device-openmp (powerpc64-ibm-linux-gnu)" {18}, ir
 // CHK-PHASES-LIB: 20: backend, {19}, assembler, (device-openmp)
 // CHK-PHASES-LIB: 21: assembler, {20}, object, (device-openmp)
 // CHK-PHASES-LIB: 22: linker, {15, 21}, image, (device-openmp)
-// CHK-PHASES-LIB: 23: offload, "host-openmp (powerpc64-ibm-linux-gnu)" {6}, "device-openmp (x86_64-pc-linux-gnu)" {14}, "device-openmp (powerpc64-ibm-linux-gnu)" {22}, image
-
+// CHK-PHASES-LIB: 23: offload, "device-openmp (powerpc64-ibm-linux-gnu)" {22}, image
+// CHK-PHASES-LIB: 24: clang-offload-wrapper, {14, 23}, ir, (host-openmp)
+// CHK-PHASES-LIB: 25: backend, {24}, assembler, (host-openmp)
+// CHK-PHASES-LIB: 26: assembler, {25}, object, (host-openmp)
+// CHK-PHASES-LIB: 27: linker, {0, 5, 26}, image, (host-openmp)
 
 /// ###########################################################################
 
 /// Check the phases when using multiple targets and multiple source files
 // RUN:   echo " " > %t.c
 // RUN:   %clang -ccc-print-phases -lsomelib -fopenmp=libomp -target powerpc64-ibm-linux-gnu -fopenmp-targets=x86_64-pc-linux-gnu,powerpc64-ibm-linux-gnu %s %t.c 2>&1 \
 // RUN:   | FileCheck -check-prefix=CHK-PHASES-FILES %s
 // CHK-PHASES-FILES: 0: input, "somelib", object, (host-openmp)
 // CHK-PHASES-FILES: 1: input, "[[INPUT1:.+\.c]]", c, (host-openmp)
 // CHK-PHASES-FILES: 2: preprocessor, {1}, cpp-output, (host-openmp)
 // CHK-PHASES-FILES: 3: compiler, {2}, ir, (host-openmp)
 // CHK-PHASES-FILES: 4: backend, {3}, assembler, (host-openmp)
 // CHK-PHASES-FILES: 5: assembler, {4}, object, (host-openmp)
 // CHK-PHASES-FILES: 6: input, "[[INPUT2:.+\.c]]", c, (host-openmp)
 // CHK-PHASES-FILES: 7: preprocessor, {6}, cpp-output, (host-openmp)
 // CHK-PHASES-FILES: 8: compiler, {7}, ir, (host-openmp)
 // CHK-PHASES-FILES: 9: backend, {8}, assembler, (host-openmp)
 // CHK-PHASES-FILES: 10: assembler, {9}, object, (host-openmp)
-// CHK-PHASES-FILES: 11: linker, {0, 5, 10}, image, (host-openmp)
-// CHK-PHASES-FILES: 12: input, "somelib", object, (device-openmp)
-// CHK-PHASES-FILES: 13: input, "[[INPUT1]]", c, (device-openmp)
-// CHK-PHASES-FILES: 14: preprocessor, {13}, cpp-output, (device-openmp)
-// CHK-PHASES-FILES: 15: compiler, {14}, ir, (device-openmp)
-// CHK-PHASES-FILES: 16: offload, "host-openmp (powerpc64-ibm-linux-gnu)" {3}, "device-openmp (x86_64-pc-linux-gnu)" {15}, ir
-// CHK-PHASES-FILES: 17: backend, {16}, assembler, (device-openmp)
-// CHK-PHASES-FILES: 18: assembler, {17}, object, (device-openmp)
-// CHK-PHASES-FILES: 19: input, "[[INPUT2]]", c, (device-openmp)
-// CHK-PHASES-FILES: 20: preprocessor, {19}, cpp-output, (device-openmp)
-// CHK-PHASES-FILES: 21: compiler, {20}, ir, (device-openmp)
-// CHK-PHASES-FILES: 22: offload, "host-openmp (powerpc64-ibm-linux-gnu)" {8}, "device-openmp (x86_64-pc-linux-gnu)" {21}, ir
-// CHK-PHASES-FILES: 23: backend, {22}, assembler, (device-openmp)
-// CHK-PHASES-FILES: 24: assembler, {23}, object, (device-openmp)
-// CHK-PHASES-FILES: 25: linker, {12, 18, 24}, image, (device-openmp)
+// CHK-PHASES-FILES: 11: input, "somelib", object, (device-openmp)
+// CHK-PHASES-FILES: 12: input, "[[INPUT1]]", c, (device-openmp)
+// CHK-PHASES-FILES: 13: preprocessor, {12}, cpp-output, (device-openmp)
+// CHK-PHASES-FILES: 14: compiler, {13}, ir, (device-openmp)
+// CHK-PHASES-FILES: 15: offload, "host-openmp (powerpc64-ibm-linux-gnu)" {3}, "device-openmp (x86_64-pc-linux-gnu)" {14}, ir
+// CHK-PHASES-FILES: 16: backend, {15}, assembler, (device-openmp)
+// CHK-PHASES-FILES: 17: assembler, {16}, object, (device-openmp)
+// CHK-PHASES-FILES: 18: input, "[[INPUT2]]", c, (device-openmp)
+// CHK-PHASES-FILES: 19: preprocessor, {18}, cpp-output, (device-openmp)
+// CHK-PHASES-FILES: 20: compiler, {19}, ir, (device-openmp)
+// CHK-PHASES-FILES: 21: offload, "host-openmp (powerpc64-ibm-linux-gnu)" {8}, "device-openmp (x86_64-pc-linux-gnu)" {20}, ir
+// CHK-PHASES-FILES: 22: backend, {21}, assembler, (device-openmp)
+// CHK-PHASES-FILES: 23: assembler, {22}, object, (device-openmp)
+// CHK-PHASES-FILES: 24: linker, {11, 17, 23}, image, (device-openmp)
+// CHK-PHASES-FILES: 25: offload, "device-openmp (x86_64-pc-linux-gnu)" {24}, image
 // CHK-PHASES-FILES: 26: input, "somelib", object, (device-openmp)
 // CHK-PHASES-FILES: 27: input, "[[INPUT1]]", c, (device-openmp)
 // CHK-PHASES-FILES: 28: preprocessor, {27}, cpp-output, (device-openmp)
 // CHK-PHASES-FILES: 29: compiler, {28}, ir, (device-openmp)
 // CHK-PHASES-FILES: 30: offload, "host-openmp (powerpc64-ibm-linux-gnu)" {3}, "device-openmp (powerpc64-ibm-linux-gnu)" {29}, ir
 // CHK-PHASES-FILES: 31: backend, {30}, assembler, (device-openmp)
 // CHK-PHASES-FILES: 32: assembler, {31}, object, (device-openmp)
 // CHK-PHASES-FILES: 33: input, "[[INPUT2]]", c, (device-openmp)
 // CHK-PHASES-FILES: 34: preprocessor, {33}, cpp-output, (device-openmp)
 // CHK-PHASES-FILES: 35: compiler, {34}, ir, (device-openmp)
 // CHK-PHASES-FILES: 36: offload, "host-openmp (powerpc64-ibm-linux-gnu)" {8}, "device-openmp (powerpc64-ibm-linux-gnu)" {35}, ir
 // CHK-PHASES-FILES: 37: backend, {36}, assembler, (device-openmp)
 // CHK-PHASES-FILES: 38: assembler, {37}, object, (device-openmp)
 // CHK-PHASES-FILES: 39: linker, {26, 32, 38}, image, (device-openmp)
-// CHK-PHASES-FILES: 40: offload, "host-openmp (powerpc64-ibm-linux-gnu)" {11}, "device-openmp (x86_64-pc-linux-gnu)" {25}, "device-openmp (powerpc64-ibm-linux-gnu)" {39}, image
+// CHK-PHASES-FILES: 40: offload, "device-openmp (powerpc64-ibm-linux-gnu)" {39}, image
+// CHK-PHASES-FILES: 41: clang-offload-wrapper, {25, 40}, ir, (host-openmp)
+// CHK-PHASES-FILES: 42: backend, {41}, assembler, (host-openmp)
+// CHK-PHASES-FILES: 43: assembler, {42}, object, (host-openmp)
+// CHK-PHASES-FILES: 44: linker, {0, 5, 10, 43}, image, (host-openmp)
 
 /// ###########################################################################
 
 /// Check the phases graph when using a single GPU target, and check the OpenMP
 /// and CUDA phases are articulated correctly.
 // RUN:   %clang -ccc-print-phases -fopenmp=libomp -target powerpc64le-ibm-linux-gnu -fopenmp-targets=nvptx64-nvidia-cuda -x cuda %s 2>&1 \
 // RUN:   | FileCheck -check-prefix=CHK-PHASES-WITH-CUDA %s
 // CHK-PHASES-WITH-CUDA: 0: input, "[[INPUT:.+\.c]]", cuda, (host-cuda-openmp)
 // CHK-PHASES-WITH-CUDA: 1: preprocessor, {0}, cuda-cpp-output, (host-cuda-openmp)
 // CHK-PHASES-WITH-CUDA: 2: compiler, {1}, ir, (host-cuda-openmp)
 // CHK-PHASES-WITH-CUDA: 3: input, "[[INPUT]]", cuda, (device-cuda, sm_20)
 // CHK-PHASES-WITH-CUDA: 4: preprocessor, {3}, cuda-cpp-output, (device-cuda, sm_20)
 // CHK-PHASES-WITH-CUDA: 5: compiler, {4}, ir, (device-cuda, sm_20)
 // CHK-PHASES-WITH-CUDA: 6: backend, {5}, assembler, (device-cuda, sm_20)
 // CHK-PHASES-WITH-CUDA: 7: assembler, {6}, object, (device-cuda, sm_20)
 // CHK-PHASES-WITH-CUDA: 8: offload, "device-cuda (nvptx64-nvidia-cuda:sm_20)" {7}, object
 // CHK-PHASES-WITH-CUDA: 9: offload, "device-cuda (nvptx64-nvidia-cuda:sm_20)" {6}, assembler
 // CHK-PHASES-WITH-CUDA: 10: linker, {8, 9}, cuda-fatbin, (device-cuda)
 // CHK-PHASES-WITH-CUDA: 11: offload, "host-cuda-openmp (powerpc64le-ibm-linux-gnu)" {2}, "device-cuda (nvptx64-nvidia-cuda)" {10}, ir
 // CHK-PHASES-WITH-CUDA: 12: backend, {11}, assembler, (host-cuda-openmp)
 // CHK-PHASES-WITH-CUDA: 13: assembler, {12}, object, (host-cuda-openmp)
-// CHK-PHASES-WITH-CUDA: 14: linker, {13}, image, (host-cuda-openmp)
-// CHK-PHASES-WITH-CUDA: 15: input, "[[INPUT]]", cuda, (device-openmp)
-// CHK-PHASES-WITH-CUDA: 16: preprocessor, {15}, cuda-cpp-output, (device-openmp)
-// CHK-PHASES-WITH-CUDA: 17: compiler, {16}, ir, (device-openmp)
-// CHK-PHASES-WITH-CUDA: 18: offload, "host-cuda-openmp (powerpc64le-ibm-linux-gnu)" {2}, "device-openmp (nvptx64-nvidia-cuda)" {17}, ir
-// CHK-PHASES-WITH-CUDA: 19: backend, {18}, assembler, (device-openmp)
-// CHK-PHASES-WITH-CUDA: 20: assembler, {19}, object, (device-openmp)
-// CHK-PHASES-WITH-CUDA: 21: linker, {20}, image, (device-openmp)
-// CHK-PHASES-WITH-CUDA: 22: offload, "host-cuda-openmp (powerpc64le-ibm-linux-gnu)" {14}, "device-openmp (nvptx64-nvidia-cuda)" {21}, image
+// CHK-PHASES-WITH-CUDA: 14: input, "[[INPUT]]", cuda, (device-openmp)
+// CHK-PHASES-WITH-CUDA: 15: preprocessor, {14}, cuda-cpp-output, (device-openmp)
+// CHK-PHASES-WITH-CUDA: 16: compiler, {15}, ir, (device-openmp)
+// CHK-PHASES-WITH-CUDA: 17: offload, "host-cuda-openmp (powerpc64le-ibm-linux-gnu)" {2}, "device-openmp (nvptx64-nvidia-cuda)" {16}, ir
+// CHK-PHASES-WITH-CUDA: 18: backend, {17}, assembler, (device-openmp)
+// CHK-PHASES-WITH-CUDA: 19: assembler, {18}, object, (device-openmp)
+// CHK-PHASES-WITH-CUDA: 20: linker, {19}, image, (device-openmp)
+// CHK-PHASES-WITH-CUDA: 21: offload, "device-openmp (nvptx64-nvidia-cuda)" {20}, image
+// CHK-PHASES-WITH-CUDA: 22: clang-offload-wrapper, {21}, ir, (host-cuda-openmp)
+// CHK-PHASES-WITH-CUDA: 23: backend, {22}, assembler, (host-cuda-openmp)
+// CHK-PHASES-WITH-CUDA: 24: assembler, {23}, object, (host-cuda-openmp)
+// CHK-PHASES-WITH-CUDA: 25: linker, {13, 24}, image, (host-cuda-openmp)
 
 /// ###########################################################################
 
 /// Check of the commands passed to each tool when using valid OpenMP targets.
 /// Here we also check that offloading does not break the use of integrated
 /// assembler. It does however preclude the merge of the host compile and
 /// backend phases. There are also two offloading specific options:
 /// -fopenmp-is-device: will tell the frontend that it will generate code for a
 /// target.
 /// -fopenmp-host-ir-file-path: specifies the host IR file that can be loaded by
 /// the target code generation to gather information about which declaration
 /// really need to be emitted.
-/// We use -fopenmp-dump-offload-linker-script to dump the linker script and
-/// check its contents.
 ///
-// RUN:   %clang -### -fopenmp=libomp -o %t.out -target powerpc64le-linux -fopenmp-targets=powerpc64le-ibm-linux-gnu,x86_64-pc-linux-gnu %s -fopenmp-dump-offload-linker-script -no-canonical-prefixes 2>&1 \
-// RUN:   | FileCheck -check-prefix=CHK-COMMANDS -check-prefix=CHK-LKS -check-prefix=CHK-LKS-REG %s
-// RUN:   %clang -### -fopenmp=libomp -o %t.out -target powerpc64le-linux -fopenmp-targets=powerpc64le-ibm-linux-gnu,x86_64-pc-linux-gnu %s -save-temps -fopenmp-dump-offload-linker-script -no-canonical-prefixes 2>&1 \
-// RUN:   | FileCheck -check-prefix=CHK-COMMANDS-ST -check-prefix=CHK-LKS -check-prefix=CHK-LKS-ST %s
-
-// Make sure we are not dumping the script unless the user requested it.
 // RUN:   %clang -### -fopenmp=libomp -o %t.out -target powerpc64le-linux -fopenmp-targets=powerpc64le-ibm-linux-gnu,x86_64-pc-linux-gnu %s -no-canonical-prefixes 2>&1 \
-// RUN:   | FileCheck -check-prefix=CHK-LKS-NODUMP %s
+// RUN:   | FileCheck -check-prefix=CHK-COMMANDS %s
 // RUN:   %clang -### -fopenmp=libomp -o %t.out -target powerpc64le-linux -fopenmp-targets=powerpc64le-ibm-linux-gnu,x86_64-pc-linux-gnu %s -save-temps -no-canonical-prefixes 2>&1 \
-// RUN:   | FileCheck -check-prefix=CHK-LKS-NODUMP %s
-
-//
-// Check the linker script contains what we expect.
-//
-// CHK-LKS: /*
-// CHK-LKS:                   OpenMP Offload Linker Script
-// CHK-LKS:             *** Automatically generated by Clang ***
-// CHK-LKS-NODUMP-NOT:  OpenMP Offload Linker Script.
-// CHK-LKS: */
-// CHK-LKS: TARGET(binary)
-// CHK-LKS-REG: INPUT([[T1BIN:.+\.out]])
-// CHK-LKS-REG: INPUT([[T2BIN:.+\.out]])
-// CHK-LKS-ST: INPUT([[T1BIN:.+\.out-openmp-powerpc64le-ibm-linux-gnu]])
-// CHK-LKS-ST: INPUT([[T2BIN:.+\.out-openmp-x86_64-pc-linux-gnu]])
-// CHK-LKS: SECTIONS
-// CHK-LKS: {
-// CHK-LKS:   .omp_offloading.powerpc64le-ibm-linux-gnu :
-// CHK-LKS:   ALIGN(0x10)
-// CHK-LKS:   {
-// CHK-LKS:     PROVIDE_HIDDEN(.omp_offloading.img_start.powerpc64le-ibm-linux-gnu = .);
-// CHK-LKS:     [[T1BIN]]
-// CHK-LKS:     PROVIDE_HIDDEN(.omp_offloading.img_end.powerpc64le-ibm-linux-gnu = .);
-// CHK-LKS:   }
-// CHK-LKS:   .omp_offloading.x86_64-pc-linux-gnu :
-// CHK-LKS:   ALIGN(0x10)
-// CHK-LKS:   {
-// CHK-LKS:     PROVIDE_HIDDEN(.omp_offloading.img_start.x86_64-pc-linux-gnu = .);
-// CHK-LKS:     [[T2BIN]]
-// CHK-LKS:     PROVIDE_HIDDEN(.omp_offloading.img_end.x86_64-pc-linux-gnu = .);
-// CHK-LKS:   }
-// CHK-LKS:   .omp_offloading.entries :
-// CHK-LKS:   ALIGN(0x10)
-// CHK-LKS:   SUBALIGN(0x01)
-// CHK-LKS:   {
-// CHK-LKS:     PROVIDE_HIDDEN(.omp_offloading.entries_begin = .);
-// CHK-LKS:     *(.omp_offloading.entries)
-// CHK-LKS:     PROVIDE_HIDDEN(.omp_offloading.entries_end = .);
-// CHK-LKS:   }
-// CHK-LKS: }
-// CHK-LKS: INSERT BEFORE .data
+// RUN:   | FileCheck -check-prefix=CHK-COMMANDS-ST %s
 
 //
-// Generate host BC file.
+// Generate host BC file and host object.
 //
 // CHK-COMMANDS: clang{{.*}}" "-cc1" "-triple" "powerpc64le-unknown-linux" {{.*}}"-emit-llvm-bc"
 // CHK-COMMANDS-SAME: "-fopenmp-targets=powerpc64le-ibm-linux-gnu,x86_64-pc-linux-gnu"
 // CHK-COMMANDS-SAME: "-o" "
 // CHK-COMMANDS-SAME: [[HOSTBC:[^\\/]+\.bc]]" "-x" "c" "
 // CHK-COMMANDS-SAME: [[INPUT:[^\\/]+\.c]]"
+// CHK-COMMANDS: clang{{.*}}" "-cc1" "-triple" "powerpc64le-unknown-linux" {{.*}}"-emit-obj" {{.*}}"-fopenmp" {{.*}}"-o" "
+// CHK-COMMANDS-SAME: [[HOSTOBJ:[^\\/]+\.o]]" "-x" "ir" "{{.*}}[[HOSTBC]]"
 // CHK-COMMANDS-ST: clang{{.*}}" "-cc1" "-triple" "powerpc64le-unknown-linux" {{.*}}"-E" {{.*}}"-fopenmp" {{.*}}"-o" "
 // CHK-COMMANDS-ST-SAME: [[HOSTPP:[^\\/]+\.i]]" "-x" "c" "
 // CHK-COMMANDS-ST-SAME: [[INPUT:[^\\/]+\.c]]"
 // CHK-COMMANDS-ST: clang{{.*}}" "-cc1" "-triple" "powerpc64le-unknown-linux" {{.*}}"-emit-llvm-bc" {{.*}}"-fopenmp" {{.*}}"-fopenmp-targets=powerpc64le-ibm-linux-gnu,x86_64-pc-linux-gnu" {{.*}}"-o" "
 // CHK-COMMANDS-ST-SAME: [[HOSTBC:[^\\/]+\.bc]]" "-x" "cpp-output" "{{.*}}[[HOSTPP]]"
+// CHK-COMMANDS-ST: clang{{.*}}" "-cc1" "-triple" "powerpc64le-unknown-linux" {{.*}}"-S" {{.*}}"-fopenmp" {{.*}}"-o" "
+// CHK-COMMANDS-ST-SAME: [[HOSTASM:[^\\/]+\.s]]" "-x" "ir" "{{.*}}[[HOSTBC]]"
+// CHK-COMMANDS-ST: clang{{.*}}" "-cc1as" "-triple" "powerpc64le-unknown-linux" "-filetype" "obj" {{.*}}"-o" "
+// CHK-COMMANDS-ST-SAME: [[HOSTOBJ:[^\\/]+\.o]]" "{{.*}}[[HOSTASM]]"
 
 //
 // Compile for the powerpc device.
 //
 // CHK-COMMANDS: clang{{.*}}" "-cc1" "-triple" "powerpc64le-ibm-linux-gnu" "-aux-triple" "powerpc64le-unknown-linux" {{.*}}"-emit-obj" {{.*}}"-pic-level" "2" {{.*}}"-fopenmp"
 // CHK-COMMANDS-SAME: "-fopenmp-is-device" "-fopenmp-host-ir-file-path" "{{.*}}[[HOSTBC]]" {{.*}}"-o" "
 // CHK-COMMANDS-SAME: [[T1OBJ:[^\\/]+\.o]]" "-x" "c" "{{.*}}[[INPUT]]"
 // CHK-COMMANDS: ld{{(\.exe)?}}" {{.*}}"-o" "

 // CHK-COMMANDS-ST: clang{{.*}}" "-cc1" "-triple" "x86_64-pc-linux-gnu" "-aux-triple" "powerpc64le-unknown-linux" {{.*}}"-S" {{.*}}"-fopenmp" {{.*}}"-o" "
 // CHK-COMMANDS-ST-SAME: [[T2ASM:[^\\/]+\.s]]" "-x" "ir" "{{.*}}[[T2BC]]"
 // CHK-COMMANDS-ST: clang{{.*}}" "-cc1as" "-triple" "x86_64-pc-linux-gnu" "-filetype" "obj" {{.*}}"-o" "
 // CHK-COMMANDS-ST-SAME: [[T2OBJ:[^\\/]+\.o]]" "{{.*}}[[T2ASM]]"
 // CHK-COMMANDS-ST: ld{{(\.exe)?}}" {{.*}}"-shared" {{.*}}"-o" "
 // CHK-COMMANDS-ST-SAME: [[T2BIN:[^\\/]+\.out-openmp-x86_64-pc-linux-gnu]]" {{.*}}"{{.*}}[[T2OBJ]]"
 
 //
-// Generate host object from the BC file and link using the linker script.
+// Create wrapper BC file and wrapper object.
 //
+// CHK-COMMANDS: clang-offload-wrapper{{(\.exe)?}}" "-target" "powerpc64le-unknown-linux" "-o" "
+// CHK-COMMANDS-SAME: [[WRAPPERBC:[^\\/]+\.bc]]" "{{.*}}[[T1BIN]]" "{{.*}}[[T2BIN]]"
 // CHK-COMMANDS: clang{{.*}}" "-cc1" "-triple" "powerpc64le-unknown-linux" {{.*}}"-emit-obj" {{.*}}"-fopenmp" {{.*}}"-o" "
-// CHK-COMMANDS-SAME: [[HOSTOBJ:[^\\/]+\.o]]" "-x" "ir" "{{.*}}[[HOSTBC]]"
-// CHK-COMMANDS: ld{{(\.exe)?}}" {{.*}}"-o" "
-// CHK-COMMANDS-SAME: [[HOSTBIN:[^\\/]+\.out]]"  {{.*}}"-lomptarget" {{.*}}"-T" "
-// CHK-COMMANDS-SAME: [[HOSTLK:[^\\/]+\.lk]]"
+// CHK-COMMANDS-SAME: [[WRAPPEROBJ:[^\\/]+\.o]]" "-x" "ir" "{{.*}}[[WRAPPERBC]]"
+// CHK-COMMANDS-ST: clang-offload-wrapper{{(\.exe)?}}" "-target" "powerpc64le-unknown-linux" "-o" "
+// CHK-COMMANDS-ST-SAME: [[WRAPPERBC:[^\\/]+\.bc]]" "{{.*}}[[T1BIN]]" "{{.*}}[[T2BIN]]"
 // CHK-COMMANDS-ST: clang{{.*}}" "-cc1" "-triple" "powerpc64le-unknown-linux" {{.*}}"-S" {{.*}}"-fopenmp" {{.*}}"-o" "
-// CHK-COMMANDS-ST-SAME: [[HOSTASM:[^\\/]+\.s]]" "-x" "ir" "{{.*}}[[HOSTBC]]"
+// CHK-COMMANDS-ST-SAME: [[WRAPPERASM:[^\\/]+\.s]]" "-x" "ir" "{{.*}}[[WRAPPERBC]]"
 // CHK-COMMANDS-ST: clang{{.*}}" "-cc1as" "-triple" "powerpc64le-unknown-linux" "-filetype" "obj" {{.*}}"-o" "
-// CHK-COMMANDS-ST-SAME: [[HOSTOBJ:[^\\/]+\.o]]" "{{.*}}[[HOSTASM]]"
-// CHK-COMMANDS-ST: ld{{(\.exe)?}}" {{.*}}"-o" "
-// CHK-COMMANDS-ST-SAME: [[HOSTBIN:[^\\/]+\.out]]"  {{.*}}"-lomptarget" {{.*}}"-T" "
-// CHK-COMMANDS-ST-SAME: [[HOSTLK:[^\\/]+\.lk]]"
+// CHK-COMMANDS-ST-SAME: [[WRAPPEROBJ:[^\\/]+\.o]]" "{{.*}}[[WRAPPERASM]]"
 
+//
+// Link host binary.
+//
+// CHK-COMMANDS: ld{{(\.exe)?}}" {{.*}}"-o" "
+// CHK-COMMANDS-SAME: [[HOSTBIN:[^\\/]+\.out]]" {{.*}}omptargetbegin.o" {{.*}}"{{.*}}[[HOSTOBJ]]" "{{.*}}[[WRAPPEROBJ]]" {{.*}}"-lomptarget" {{.*}}omptargetend.o"
+// CHK-COMMANDS-ST: ld{{(\.exe)?}}" {{.*}}"-o" "
+// CHK-COMMANDS-ST-SAME: [[HOSTBIN:[^\\/]+\.out]]" {{.*}}omptargetbegin.o" {{.*}}"{{.*}}[[HOSTOBJ]]" "{{.*}}[[WRAPPEROBJ]]" {{.*}}"-lomptarget" {{.*}}omptargetend.o"
 
 /// ###########################################################################
 
 /// Check separate compilation with offloading - bundling actions
 // RUN:   %clang -### -ccc-print-phases -fopenmp=libomp -c -o %t.o %S/Input/in.so -lsomelib -target powerpc64le-linux -fopenmp-targets=powerpc64le-ibm-linux-gnu,x86_64-pc-linux-gnu %s -no-canonical-prefixes 2>&1 \
 // RUN:   | FileCheck -check-prefix=CHK-BUACTIONS %s
 
 // CHK-BUACTIONS: 0: input, "[[INPUT:.+\.c]]", c, (host-openmp)

 // RUN:   | FileCheck -check-prefix=CHK-UBACTIONS %s
 
 // CHK-UBACTIONS: 0: input, "somelib", object, (host-openmp)
 // CHK-UBACTIONS: 1: input, "[[INPUT:.+\.i]]", cpp-output, (host-openmp)
 // CHK-UBACTIONS: 2: clang-offload-unbundler, {1}, cpp-output, (host-openmp)
 // CHK-UBACTIONS: 3: compiler, {2}, ir, (host-openmp)
 // CHK-UBACTIONS: 4: backend, {3}, assembler, (host-openmp)
 // CHK-UBACTIONS: 5: assembler, {4}, object, (host-openmp)
-// CHK-UBACTIONS: 6: linker, {0, 5}, image, (host-openmp)
-// CHK-UBACTIONS: 7: input, "somelib", object, (device-openmp)
-// CHK-UBACTIONS: 8: compiler, {2}, ir, (device-openmp)
-// CHK-UBACTIONS: 9: offload, "host-openmp (powerpc64le-unknown-linux)" {3}, "device-openmp (powerpc64le-ibm-linux-gnu)" {8}, ir
-// CHK-UBACTIONS: 10: backend, {9}, assembler, (device-openmp)
-// CHK-UBACTIONS: 11: assembler, {10}, object, (device-openmp)
-// CHK-UBACTIONS: 12: linker, {7, 11}, image, (device-openmp)
+// CHK-UBACTIONS: 6: input, "somelib", object, (device-openmp)
+// CHK-UBACTIONS: 7: compiler, {2}, ir, (device-openmp)
+// CHK-UBACTIONS: 8: offload, "host-openmp (powerpc64le-unknown-linux)" {3}, "device-openmp (powerpc64le-ibm-linux-gnu)" {7}, ir
+// CHK-UBACTIONS: 9: backend, {8}, assembler, (device-openmp)
+// CHK-UBACTIONS: 10: assembler, {9}, object, (device-openmp)
+// CHK-UBACTIONS: 11: linker, {6, 10}, image, (device-openmp)
+// CHK-UBACTIONS: 12: offload, "device-openmp (powerpc64le-ibm-linux-gnu)" {11}, image
 // CHK-UBACTIONS: 13: input, "somelib", object, (device-openmp)
 // CHK-UBACTIONS: 14: compiler, {2}, ir, (device-openmp)
 // CHK-UBACTIONS: 15: offload, "host-openmp (powerpc64le-unknown-linux)" {3}, "device-openmp (x86_64-pc-linux-gnu)" {14}, ir
 // CHK-UBACTIONS: 16: backend, {15}, assembler, (device-openmp)
 // CHK-UBACTIONS: 17: assembler, {16}, object, (device-openmp)
 // CHK-UBACTIONS: 18: linker, {13, 17}, image, (device-openmp)
-// CHK-UBACTIONS: 19: offload, "host-openmp (powerpc64le-unknown-linux)" {6}, "device-openmp (powerpc64le-ibm-linux-gnu)" {12}, "device-openmp (x86_64-pc-linux-gnu)" {18}, image
+// CHK-UBACTIONS: 19: offload, "device-openmp (x86_64-pc-linux-gnu)" {18}, image
+// CHK-UBACTIONS: 20: clang-offload-wrapper, {12, 19}, ir, (host-openmp)
+// CHK-UBACTIONS: 21: backend, {20}, assembler, (host-openmp)
+// CHK-UBACTIONS: 22: assembler, {21}, object, (host-openmp)
+// CHK-UBACTIONS: 23: linker, {0, 5, 22}, image, (host-openmp)
 
 /// ###########################################################################
 
 /// Check separate compilation with offloading - unbundling/bundling actions
 // RUN:   touch %t.i
 // RUN:   %clang -### -ccc-print-phases -fopenmp=libomp -c -o %t.o -lsomelib -target powerpc64le-linux -fopenmp-targets=powerpc64le-ibm-linux-gnu,x86_64-pc-linux-gnu %t.i -no-canonical-prefixes 2>&1 \
 // RUN:   | FileCheck -check-prefix=CHK-UBUACTIONS %s
 

 // Unbundle and create host BC.
 // CHK-UBJOBS: clang-offload-bundler{{.*}}" "-type=i" "-targets=host-powerpc64le-unknown-linux,openmp-powerpc64le-ibm-linux-gnu,openmp-x86_64-pc-linux-gnu" "-inputs=
 // CHK-UBJOBS-SAME: [[INPUT:[^\\/]+\.i]]" "-outputs=
 // CHK-UBJOBS-SAME: [[HOSTPP:[^\\/]+\.i]],
 // CHK-UBJOBS-SAME: [[T1PP:[^\\/]+\.i]],
 // CHK-UBJOBS-SAME: [[T2PP:[^\\/]+\.i]]" "-unbundle"
 // CHK-UBJOBS: clang{{.*}}" "-cc1" "-triple" "powerpc64le-unknown-linux" {{.*}}"-emit-llvm-bc"  {{.*}}"-fopenmp" {{.*}}"-fopenmp-targets=powerpc64le-ibm-linux-gnu,x86_64-pc-linux-gnu" {{.*}}"-o" "
 // CHK-UBJOBS-SAME: [[HOSTBC:[^\\/]+\.bc]]" "-x" "cpp-output" "{{.*}}[[HOSTPP]]"
+// CHK-UBJOBS: clang{{.*}}" "-cc1" "-triple" "powerpc64le-unknown-linux" {{.*}}"-emit-obj" {{.*}}"-fopenmp" {{.*}}"-o" "
+// CHK-UBJOBS-SAME: [[HOSTOBJ:[^\\/]+\.o]]" "-x" "ir" "{{.*}}[[HOSTBC]]"
 // CHK-UBJOBS-ST: clang-offload-bundler{{.*}}" "-type=i" "-targets=host-powerpc64le-unknown-linux,openmp-powerpc64le-ibm-linux-gnu,openmp-x86_64-pc-linux-gnu" "-inputs=
 // CHK-UBJOBS-ST-SAME: [[INPUT:[^\\/]+\.i]]" "-outputs=
 // CHK-UBJOBS-ST-SAME: [[HOSTPP:[^\\/,]+\.i]],
 // CHK-UBJOBS-ST-SAME: [[T1PP:[^\\/,]+\.i]],
 // CHK-UBJOBS-ST-SAME: [[T2PP:[^\\/,]+\.i]]" "-unbundle"
 // CHK-UBJOBS-ST: clang{{.*}}" "-cc1" "-triple" "powerpc64le-unknown-linux" {{.*}}"-emit-llvm-bc"  {{.*}}"-fopenmp" {{.*}}"-fopenmp-targets=powerpc64le-ibm-linux-gnu,x86_64-pc-linux-gnu" {{.*}}"-o" "
 // CHK-UBJOBS-ST-SAME: [[HOSTBC:[^\\/]+\.bc]]" "-x" "cpp-output" "{{.*}}[[HOSTPP]]"
+// CHK-UBJOBS-ST: clang{{.*}}" "-cc1" "-triple" "powerpc64le-unknown-linux" {{.*}}"-S" {{.*}}"-fopenmp" {{.*}}"-o" "
+// CHK-UBJOBS-ST-SAME: [[HOSTASM:[^\\/]+\.s]]" "-x" "ir" "{{.*}}[[HOSTBC]]"
+// CHK-UBJOBS-ST: clang{{.*}}" "-cc1as" "-triple" "powerpc64le-unknown-linux" "-filetype" "obj" {{.*}}"-o" "
+// CHK-UBJOBS-ST-SAME: [[HOSTOBJ:[^\\/]+\.o]]" "{{.*}}[[HOSTASM]]"
 
 // Create target 1 object.
 // CHK-UBJOBS: clang{{.*}}" "-cc1" "-triple" "powerpc64le-ibm-linux-gnu" "-aux-triple" "powerpc64le-unknown-linux" {{.*}}"-emit-obj" {{.*}}"-fopenmp" {{.*}}"-fopenmp-is-device" "-fopenmp-host-ir-file-path" "{{.*}}[[HOSTBC]]" {{.*}}"-o" "
 // CHK-UBJOBS-SAME: [[T1OBJ:[^\\/]+\.o]]" "-x" "cpp-output" "{{.*}}[[T1PP]]"
 // CHK-UBJOBS: ld{{(\.exe)?}}" {{.*}}"-o" "
 // CHK-UBJOBS-SAME: [[T1BIN:[^\\/]+\.out]]" {{.*}}"{{.*}}[[T1OBJ]]"
 // CHK-UBJOBS-ST: clang{{.*}}" "-cc1" "-triple" "powerpc64le-ibm-linux-gnu" "-aux-triple" "powerpc64le-unknown-linux" {{.*}}"-emit-llvm-bc" {{.*}}"-fopenmp" {{.*}}"-fopenmp-is-device" "-fopenmp-host-ir-file-path" "{{.*}}[[HOSTBC]]" {{.*}}"-o" "
 // CHK-UBJOBS-ST-SAME: [[T1BC:[^\\/]+\.bc]]" "-x" "cpp-output" "{{.*}}[[T1PP]]"

 // CHK-UBJOBS-ST-SAME: [[T2BC:[^\\/]+\.bc]]" "-x" "cpp-output" "{{.*}}[[T2PP]]"
 // CHK-UBJOBS-ST: clang{{.*}}" "-cc1" "-triple" "x86_64-pc-linux-gnu" "-aux-triple" "powerpc64le-unknown-linux" {{.*}}"-S" {{.*}}"-fopenmp" {{.*}}"-o" "
 // CHK-UBJOBS-ST-SAME: [[T2ASM:[^\\/]+\.s]]" "-x" "ir" "{{.*}}[[T2BC]]"
 // CHK-UBJOBS-ST: clang{{.*}}" "-cc1as" "-triple" "x86_64-pc-linux-gnu" "-filetype" "obj" {{.*}}"-o" "
 // CHK-UBJOBS-ST-SAME: [[T2OBJ:[^\\/]+\.o]]" "{{.*}}[[T2ASM]]"
 // CHK-UBJOBS-ST: ld{{(\.exe)?}}" {{.*}}"-o" "
 // CHK-UBJOBS-ST-SAME: [[T2BIN:[^\\/]+\.out-openmp-x86_64-pc-linux-gnu]]" {{.*}}"{{.*}}[[T2OBJ]]"
 
-// Create binary.
+// Create wrapper BC file and wrapper object.
+// CHK-UBJOBS: clang-offload-wrapper{{(\.exe)?}}" "-target" "powerpc64le-unknown-linux" "-o" "
+// CHK-UBJOBS-SAME: [[WRAPPERBC:[^\\/]+\.bc]]" "{{.*}}[[T1BIN]]" "{{.*}}[[T2BIN]]"
 // CHK-UBJOBS: clang{{.*}}" "-cc1" "-triple" "powerpc64le-unknown-linux" {{.*}}"-emit-obj" {{.*}}"-fopenmp" {{.*}}"-o" "
-// CHK-UBJOBS-SAME: [[HOSTOBJ:[^\\/]+\.o]]" "-x" "ir" "{{.*}}[[HOSTBC]]"
-// CHK-UBJOBS: ld{{(\.exe)?}}" {{.*}}"-o" "
-// CHK-UBJOBS-SAME: [[HOSTBIN:[^\\/]+\.out]]" {{.*}}"{{.*}}[[HOSTOBJ]]" {{.*}}"-T" "
-// CHK-UBJOBS-SAME: [[LKS:[^\\/]+\.lk]]"
+// CHK-UBJOBS-SAME: [[WRAPPEROBJ:[^\\/]+\.o]]" "-x" "ir" "{{.*}}[[WRAPPERBC]]"
+// CHK-UBJOBS-ST: clang-offload-wrapper{{(\.exe)?}}" "-target" "powerpc64le-unknown-linux" "-o" "
+// CHK-UBJOBS-ST-SAME: [[WRAPPERBC:[^\\/]+\.bc]]" "{{.*}}[[T1BIN]]" "{{.*}}[[T2BIN]]"
 // CHK-UBJOBS-ST: clang{{.*}}" "-cc1" "-triple" "powerpc64le-unknown-linux" {{.*}}"-S" {{.*}}"-fopenmp" {{.*}}"-o" "
-// CHK-UBJOBS-ST-SAME: [[HOSTASM:[^\\/]+\.s]]" "-x" "ir" "{{.*}}[[HOSTBC]]"
+// CHK-UBJOBS-ST-SAME: [[WRAPPERASM:[^\\/]+\.s]]" "-x" "ir" "{{.*}}[[WRAPPERBC]]"
 // CHK-UBJOBS-ST: clang{{.*}}" "-cc1as" "-triple" "powerpc64le-unknown-linux" "-filetype" "obj" {{.*}}"-o" "
-// CHK-UBJOBS-ST-SAME: [[HOSTOBJ:[^\\/]+\.o]]" "{{.*}}[[HOSTASM]]"
+// CHK-UBJOBS-ST-SAME: [[WRAPPEROBJ:[^\\/]+\.o]]" "{{.*}}[[WRAPPERASM]]"
+
+// Create binary.
+// CHK-UBJOBS: ld{{(\.exe)?}}" {{.*}}"-o" "
+// CHK-UBJOBS-SAME: [[HOSTBIN:[^\\/]+\.out]]" {{.*}}omptargetbegin.o" {{.*}}"{{.*}}[[HOSTOBJ]]" "{{.*}}[[WRAPPEROBJ]]" {{.*}}omptargetend.o"
 // CHK-UBJOBS-ST: ld{{(\.exe)?}}" {{.*}}"-o" "
-// CHK-UBJOBS-ST-SAME: [[HOSTBIN:[^\\/]+\.out]]" {{.*}}"{{.*}}[[HOSTOBJ]]" {{.*}}"-T" "
-// CHK-UBJOBS-ST-SAME: [[LKS:[^\\/]+\.lk]]"
+// CHK-UBJOBS-ST-SAME: [[HOSTBIN:[^\\/]+\.out]]" {{.*}}omptargetbegin.o" {{.*}}"{{.*}}[[HOSTOBJ]]" "{{.*}}[[WRAPPEROBJ]]" {{.*}}omptargetend.o"
 
 // Unbundle object file.
 // CHK-UBJOBS2: clang-offload-bundler{{.*}}" "-type=o" "-targets=host-powerpc64le-unknown-linux,openmp-powerpc64le-ibm-linux-gnu,openmp-x86_64-pc-linux-gnu" "-inputs=
 // CHK-UBJOBS2-SAME: [[INPUT:[^\\/]+\.o]]" "-outputs=
 // CHK-UBJOBS2-SAME: [[HOSTOBJ:[^\\/]+\.o]],
 // CHK-UBJOBS2-SAME: [[T1OBJ:[^\\/]+\.o]],
 // CHK-UBJOBS2-SAME: [[T2OBJ:[^\\/]+\.o]]" "-unbundle"
 // CHK-UBJOBS2: ld{{(\.exe)?}}" {{.*}}"-o" "
 // CHK-UBJOBS2-SAME: [[T1BIN:[^\\/]+\.out]]" {{.*}}"{{.*}}[[T1OBJ]]"
 // CHK-UBJOBS2: ld{{(\.exe)?}}" {{.*}}"-o" "
 // CHK-UBJOBS2-SAME: [[T2BIN:[^\\/]+\.out]]" {{.*}}"{{.*}}[[T2OBJ]]"
+// CHK-UBJOBS2: clang-offload-wrapper{{(\.exe)?}}" "-target" "powerpc64le-unknown-linux" "-o" "
+// CHK-UBJOBS2-SAME: [[WRAPPERBC:[^\\/]+\.bc]]" "{{.*}}[[T1BIN]]" "{{.*}}[[T2BIN]]"
+// CHK-UBJOBS2: clang{{.*}}" "-cc1" "-triple" "powerpc64le-unknown-linux" "-emit-obj" {{.*}}"-fopenmp" {{.*}}"-o" "
+// CHK-UBJOBS2-SAME: [[WRAPPEROBJ:[^\\/]+\.o]]" "-x" "ir" "{{.*}}[[WRAPPERBC]]"
 // CHK-UBJOBS2: ld{{(\.exe)?}}" {{.*}}"-o" "
-// CHK-UBJOBS2-SAME: [[HOSTBIN:[^\\/]+\.out]]" {{.*}}"{{.*}}[[HOSTOBJ]]" {{.*}}"-T" "
-// CHK-UBJOBS2-SAME: [[LKS:[^\\/]+\.lk]]"
+// CHK-UBJOBS2-SAME: [[HOSTBIN:[^\\/]+\.out]]" {{.*}}omptargetbegin.o" {{.*}}"{{.*}}[[HOSTOBJ]]" "{{.*}}[[WRAPPEROBJ]]" {{.*}}omptargetend.o"
 // CHK-UBJOBS2-ST-NOT: clang-offload-bundler{{.*}}in.so
 // CHK-UBJOBS2-ST: clang-offload-bundler{{.*}}" "-type=o" "-targets=host-powerpc64le-unknown-linux,openmp-powerpc64le-ibm-linux-gnu,openmp-x86_64-pc-linux-gnu" "-inputs=
 // CHK-UBJOBS2-ST-SAME: [[INPUT:[^\\/]+\.o]]" "-outputs=
 // CHK-UBJOBS2-ST-SAME: [[HOSTOBJ:[^\\/,]+\.o]],
 // CHK-UBJOBS2-ST-SAME: [[T1OBJ:[^\\/,]+\.o]],
 // CHK-UBJOBS2-ST-SAME: [[T2OBJ:[^\\/,]+\.o]]" "-unbundle"
 // CHK-UBJOBS2-ST-NOT: clang-offload-bundler{{.*}}in.so
 // CHK-UBJOBS2-ST: ld{{(\.exe)?}}" {{.*}}"-o" "
 // CHK-UBJOBS2-ST-SAME: [[T1BIN:[^\\/]+\.out-openmp-powerpc64le-ibm-linux-gnu]]" {{.*}}"{{.*}}[[T1OBJ]]"
 // CHK-UBJOBS2-ST: ld{{(\.exe)?}}" {{.*}}"-o" "
 // CHK-UBJOBS2-ST-SAME: [[T2BIN:[^\\/]+\.out-openmp-x86_64-pc-linux-gnu]]" {{.*}}"{{.*}}[[T2OBJ]]"
+// CHK-UBJOBS2-ST: clang-offload-wrapper{{(\.exe)?}}" "-target" "powerpc64le-unknown-linux" "-o" "
+// CHK-UBJOBS2-ST-SAME: [[WRAPPERBC:[^\\/]+\.bc]]" "{{.*}}[[T1BIN]]" "{{.*}}[[T2BIN]]"
+// CHK-UBJOBS2-ST: clang{{.*}}" "-cc1" "-triple" "powerpc64le-unknown-linux" "-S" {{.*}}"-fopenmp" {{.*}}"-o" "
+// CHK-UBJOBS2-ST-SAME: [[WRAPPERASM:[^\\/]+\.s]]" "-x" "ir" "{{.*}}[[WRAPPERBC]]"
+// CHK-UBJOBS2-ST: clang{{.*}}" "-cc1as" "-triple" "powerpc64le-unknown-linux" "-filetype" "obj" {{.*}}"-o" "
+// CHK-UBJOBS2-ST-SAME: [[WRAPPEROBJ:[^\\/]+\.o]]" "{{.*}}[[WRAPPERASM]]"
 // CHK-UBJOBS2-ST: ld{{(\.exe)?}}" {{.*}}"-o" "
-// CHK-UBJOBS2-ST-SAME: [[HOSTBIN:[^\\/]+\.out]]" {{.*}}"{{.*}}[[HOSTOBJ]]" {{.*}}"-T" "
-// CHK-UBJOBS2-ST-SAME: [[LKS:[^\\/]+\.lk]]"
+// CHK-UBJOBS2-ST-SAME: [[HOSTBIN:[^\\/]+\.out]]" {{.*}}omptargetbegin.o" {{.*}}"{{.*}}[[HOSTOBJ]]" "{{.*}}[[WRAPPEROBJ]]" {{.*}}omptargetend.o"
 
 /// ###########################################################################
 
 /// Check separate compilation with offloading - unbundling/bundling jobs
 /// construct
 // RUN:   touch %t.i
 // RUN:   %clang -### -fopenmp=libomp -c %t.o -lsomelib -target powerpc64le-linux -fopenmp-targets=powerpc64le-ibm-linux-gnu,x86_64-pc-linux-gnu %t.i -no-canonical-prefixes 2>&1 \
 // RUN:   | FileCheck -check-prefix=CHK-UBUJOBS %s

clang/test/OpenMP/openmp_offload_registration.cpp

 // Test for offload registration code for two targets
 // RUN: %clang_cc1 -verify -fopenmp -x c -triple x86_64-unknown-linux-gnu -fopenmp-targets=x86_64-pc-linux-gnu,powerpc64le-ibm-linux-gnu -emit-llvm %s -o - | FileCheck %s
 // expected-no-diagnostics
 
 void foo() {
 #pragma omp target
   {}
 }
 
 // CHECK-DAG: [[ENTTY:%.+]] = type { i8*, i8*, i[[SZ:32|64]], i32, i32 }
-// CHECK-DAG: [[DEVTY:%.+]] = type { i8*, i8*, [[ENTTY]]*, [[ENTTY]]* }
-// CHECK-DAG: [[DSCTY:%.+]] = type { i32, [[DEVTY]]*, [[ENTTY]]*, [[ENTTY]]* }
-
-// Comdat key for the offload registration code. Should have sorted offload
-// target triples encoded into the name.
-// CHECK-DAG: $[[REGFN:\.omp_offloading\..+\.powerpc64le-ibm-linux-gnu\.x86_64-pc-linux-gnu+]] = comdat any
-
-// Check if offloading descriptor is created.
-// CHECK: [[ENTBEGIN:@.+]] = external constant [[ENTTY]]
-// CHECK: [[ENTEND:@.+]] = external constant [[ENTTY]]
-// CHECK: [[DEV1BEGIN:@.+]] = extern_weak constant i8
-// CHECK: [[DEV1END:@.+]] = extern_weak constant i8
-// CHECK: [[DEV2BEGIN:@.+]] = extern_weak constant i8
-// CHECK: [[DEV2END:@.+]] = extern_weak constant i8
-// CHECK: [[IMAGES:@.+]] = internal unnamed_addr constant [2 x [[DEVTY]]] [{{.+}} { i8* [[DEV1BEGIN]], i8* [[DEV1END]], [[ENTTY]]* [[ENTBEGIN]], [[ENTTY]]* [[ENTEND]] }, {{.+}} { i8* [[DEV2BEGIN]], i8* [[DEV2END]], [[ENTTY]]* [[ENTBEGIN]], [[ENTTY]]* [[ENTEND]] }], comdat($[[REGFN]])
-// CHECK: [[DESC:@.+]] = internal constant [[DSCTY]] { i32 2, [[DEVTY]]* getelementptr inbounds ([2 x [[DEVTY]]], [2 x [[DEVTY]]]* [[IMAGES]], i32 0, i32 0), [[ENTTY]]* [[ENTBEGIN]], [[ENTTY]]* [[ENTEND]] }, comdat($[[REGFN]])
 
 // Check target registration is registered as a Ctor.
-// CHECK: appending global [2 x { i32, void ()*, i8* }] [{ i32, void ()*, i8* } { i32 0, void ()* @.omp_offloading.requires_reg, i8* null }, { i32, void ()*, i8* } { i32 0, void ()* @[[REGFN]], i8* bitcast (void ()* @[[REGFN]] to i8*) }]
+// CHECK: appending global [1 x { i32, void ()*, i8* }] [{ i32, void ()*, i8* } { i32 0, void ()* @.omp_offloading.requires_reg, i8* null }]
 
 // Check presence of foo() and the outlined target region
 // CHECK: define void [[FOO:@.+]]()
 // CHECK: define internal void [[OUTLINEDTARGET:@.+]]()
 
 // Check registration and unregistration code.
 
 // CHECK:     define internal void @.omp_offloading.requires_reg()
 // CHECK:     call void @__tgt_register_requires(i64 1)
 // CHECK:     ret void
 
-// CHECK:     define internal void @[[UNREGFN:.+]](i8*)
-// CHECK-SAME: comdat($[[REGFN]]) {
-// CHECK:     call i32 @__tgt_unregister_lib([[DSCTY]]* [[DESC]])
-// CHECK:     ret void
-// CHECK:     declare i32 @__tgt_unregister_lib([[DSCTY]]*)
-
-// CHECK:     define linkonce hidden void @[[REGFN]]()
-// CHECK-SAME: comdat {
-// CHECK:     call i32 @__tgt_register_lib([[DSCTY]]* [[DESC]])
-// CHECK:     call i32 @__cxa_atexit(void (i8*)* @[[UNREGFN]], i8* bitcast ([[DSCTY]]* [[DESC]] to i8*),
-// CHECK:     ret void
-// CHECK:     declare i32 @__tgt_register_lib([[DSCTY]]*)
-

clang/test/OpenMP/target_codegen.cpp

 // expected-no-diagnostics
 #ifndef HEADER
 #define HEADER
 
 // CHECK-DAG: [[TT:%.+]] = type { i64, i8 }
 // CHECK-DAG: [[S1:%.+]] = type { double }
 // CHECK-DAG: [[S2:%.+]] = type { i32, i32, i32 }
 // CHECK-DAG: [[ENTTY:%.+]] = type { i8*, i8*, i[[SZ:32|64]], i32, i32 }
-// CHECK-DAG: [[DEVTY:%.+]] = type { i8*, i8*, [[ENTTY]]*, [[ENTTY]]* }
-// CHECK-DAG: [[DSCTY:%.+]] = type { i32, [[DEVTY]]*, [[ENTTY]]*, [[ENTTY]]* }
 
 // TCHECK: [[ENTTY:%.+]] = type { i8*, i8*, i{{32|64}}, i32, i32 }
 
-// CHECK-DAG: $[[REGFN:\.omp_offloading\..+]] = comdat
-
 // We have 9 target regions, but only 8 that actually will generate offloading
 // code and have mapped arguments, and only 6 have all-constant map sizes.
 
 // CHECK-DAG: [[SIZET:@.+]] = private unnamed_addr constant [2 x i64] [i64 0, i64 4]
 // CHECK-DAG: [[MAPT:@.+]] = private unnamed_addr constant [2 x i64] [i64 544, i64 800]
 // CHECK-DAG: [[SIZET2:@.+]] = private unnamed_addr constant [1 x i{{32|64}}] [i64 2]
 // CHECK-DAG: [[MAPT2:@.+]] = private unnamed_addr constant [1 x i64] [i64 800]
 // CHECK-DAG: [[SIZET3:@.+]] = private unnamed_addr constant [2 x i64] [i64 4, i64 2]

 // TCHECK: @{{.+}} = weak constant [[ENTTY]]
 // TCHECK: @{{.+}} = weak constant [[ENTTY]]
 // TCHECK: @{{.+}} = weak constant [[ENTTY]]
 // TCHECK: @{{.+}} = weak constant [[ENTTY]]
 // TCHECK: @{{.+}} = weak constant [[ENTTY]]
 // TCHECK: @{{.+}} = weak constant [[ENTTY]]
 // TCHECK-NOT: @{{.+}} = weak constant [[ENTTY]]
 
-// Check if offloading descriptor is created.
-// CHECK: [[ENTBEGIN:@.+]] = external constant [[ENTTY]]
-// CHECK: [[ENTEND:@.+]] = external constant [[ENTTY]]
-// CHECK: [[DEVBEGIN:@.+]] = extern_weak constant i8
-// CHECK: [[DEVEND:@.+]] = extern_weak constant i8
-// CHECK: [[IMAGES:@.+]] = internal unnamed_addr constant [1 x [[DEVTY]]] [{{.+}} { i8* [[DEVBEGIN]], i8* [[DEVEND]], [[ENTTY]]* [[ENTBEGIN]], [[ENTTY]]* [[ENTEND]] }], comdat($[[REGFN]])
-// CHECK: [[DESC:@.+]] = internal constant [[DSCTY]] { i32 1, [[DEVTY]]* getelementptr inbounds ([1 x [[DEVTY]]], [1 x [[DEVTY]]]* [[IMAGES]], i32 0, i32 0), [[ENTTY]]* [[ENTBEGIN]], [[ENTTY]]* [[ENTEND]] }, comdat($[[REGFN]])
-
 // Check target registration is registered as a Ctor.
-// CHECK: appending global [2 x { i32, void ()*, i8* }] [{ i32, void ()*, i8* } { i32 0, void ()* @.omp_offloading.requires_reg, i8* null }, { i32, void ()*, i8* } { i32 0, void ()* @[[REGFN]], i8* bitcast (void ()* @[[REGFN]] to i8*) }]
-
+// CHECK: appending global [1 x { i32, void ()*, i8* }] [{ i32, void ()*, i8* } { i32 0, void ()* @.omp_offloading.requires_reg, i8* null }]
 
 template<typename tx, typename ty>
 struct TT{
   tx X;
   ty Y;
 };
 
 int global;

clang/test/OpenMP/target_codegen_registration.cpp

 // CHECK-DAG: [[SA:%.+]] = type { [4 x i32] }
 // CHECK-DAG: [[SB:%.+]] = type { [8 x i32] }
 // CHECK-DAG: [[SC:%.+]] = type { [16 x i32] }
 // CHECK-DAG: [[SD:%.+]] = type { [32 x i32] }
 // CHECK-DAG: [[SE:%.+]] = type { [64 x i32] }
 // CHECK-DAG: [[ST1:%.+]] = type { [228 x i32] }
 // CHECK-DAG: [[ST2:%.+]] = type { [1128 x i32] }
 // CHECK-DAG: [[ENTTY:%.+]] = type { i8*, i8*, i[[SZ:32|64]], i32, i32 }
-// CHECK-DAG: [[DEVTY:%.+]] = type { i8*, i8*, [[ENTTY]]*, [[ENTTY]]* }
-// CHECK-DAG: [[DSCTY:%.+]] = type { i32, [[DEVTY]]*, [[ENTTY]]*, [[ENTTY]]* }
 
 // TCHECK:    [[ENTTY:%.+]] = type { i8*, i8*, i[[SZ:32|64]], i32, i32 }
 
-// CHECK-DAG: $[[REGFN:\.omp_offloading\..+]] = comdat
-
 // CHECK-DAG: [[A1:@.+]] = internal global [[SA]]
 // CHECK-DAG: [[A2:@.+]] = global [[SA]]
 // CHECK-DAG: [[B1:@.+]] = global [[SB]]
 // CHECK-DAG: [[B2:@.+]] = global [[SB]]
 // CHECK-DAG: [[C1:@.+]] = internal global [[SC]]
 // CHECK-DAG: [[D1:@.+]] = global [[SD]]
 // CHECK-DAG: [[E1:@.+]] = global [[SE]]
 // CHECK-DAG: [[T1:@.+]] = global [[ST1]]

 // TCHECK-DAG: @.omp_offloading.entry.[[NAME9]] = weak constant [[ENTTY]] { i8* bitcast (void (i[[SZ]])* @{{.*}} to i8*), i8* getelementptr inbounds ([{{.*}} x i8], [{{.*}} x i8]* [[NAMEPTR9]], i32 0, i32 0), i[[SZ]] 0, i32 0, i32 0 }, section ".omp_offloading.entries", align 1
 // TCHECK-DAG: [[NAMEPTR10:@.+]] = internal unnamed_addr constant [{{.*}} x i8] c"[[NAME10:.+]]\00"
 // TCHECK-DAG: @.omp_offloading.entry.[[NAME10]] = weak constant [[ENTTY]] { i8* bitcast (void (i[[SZ]])* @{{.*}} to i8*), i8* getelementptr inbounds ([{{.*}} x i8], [{{.*}} x i8]* [[NAMEPTR10]], i32 0, i32 0), i[[SZ]] 0, i32 0, i32 0 }, section ".omp_offloading.entries", align 1
 // TCHECK-DAG: [[NAMEPTR11:@.+]] = internal unnamed_addr constant [{{.*}} x i8] c"[[NAME11:.+]]\00"
 // TCHECK-DAG: @.omp_offloading.entry.[[NAME11]] = weak constant [[ENTTY]] { i8* bitcast (void (i[[SZ]])* @{{.*}} to i8*), i8* getelementptr inbounds ([{{.*}} x i8], [{{.*}} x i8]* [[NAMEPTR11]], i32 0, i32 0), i[[SZ]] 0, i32 0, i32 0 }, section ".omp_offloading.entries", align 1
 // TCHECK-DAG: [[NAMEPTR12:@.+]] = internal unnamed_addr constant [{{.*}} x i8] c"[[NAME12:.+]]\00"
 // TCHECK-DAG: @.omp_offloading.entry.[[NAME12]] = weak constant [[ENTTY]] { i8* bitcast (void (i[[SZ]])* @{{.*}} to i8*), i8* getelementptr inbounds ([{{.*}} x i8], [{{.*}} x i8]* [[NAMEPTR12]], i32 0, i32 0), i[[SZ]] 0, i32 0, i32 0 }, section ".omp_offloading.entries", align 1
 
-// CHECK: [[ENTBEGIN:@.+]] = external constant [[ENTTY]]
-// CHECK: [[ENTEND:@.+]] = external constant [[ENTTY]]
-// CHECK: [[DEVBEGIN:@.+]] = extern_weak constant i8
-// CHECK: [[DEVEND:@.+]] = extern_weak constant i8
-// CHECK: [[IMAGES:@.+]] = internal unnamed_addr constant [1 x [[DEVTY]]] [{{.+}} { i8* [[DEVBEGIN]], i8* [[DEVEND]], [[ENTTY]]* [[ENTBEGIN]], [[ENTTY]]* [[ENTEND]] }], comdat($[[REGFN]])
-// CHECK: [[DESC:@.+]] = internal constant [[DSCTY]] { i32 1, [[DEVTY]]* getelementptr inbounds ([1 x [[DEVTY]]], [1 x [[DEVTY]]]* [[IMAGES]], i32 0, i32 0), [[ENTTY]]* [[ENTBEGIN]], [[ENTTY]]* [[ENTEND]] }, comdat($[[REGFN]])
-
 // We have 4 initializers, one for the 500 priority, another one for 501, or more for the default priority, and the last one for the offloading registration function.
-// CHECK: @llvm.global_ctors = appending global [5 x { i32, void ()*, i8* }] [
+// CHECK: @llvm.global_ctors = appending global [4 x { i32, void ()*, i8* }] [
 // CHECK-SAME: { i32, void ()*, i8* } { i32 500, void ()* [[P500:@[^,]+]], i8* null },
 // CHECK-SAME: { i32, void ()*, i8* } { i32 501, void ()* [[P501:@[^,]+]], i8* null },
 // CHECK-SAME: { i32, void ()*, i8* } { i32 65535, void ()* [[PMAX:@[^,]+]], i8* null },
-// CHECK-SAME: { i32, void ()*, i8* } { i32 0, void ()* @.omp_offloading.requires_reg, i8* null },
-// CHECK-SAME: { i32, void ()*, i8* } { i32 0, void ()* @[[REGFN]], i8* bitcast (void ()* @[[REGFN]] to i8*) }]
+// CHECK-SAME: { i32, void ()*, i8* } { i32 0, void ()* @.omp_offloading.requires_reg, i8* null }
 
 // CHECK-NTARGET: @llvm.global_ctors = appending global [3   x { i32, void ()*, i8* }] [
 
 extern int *R;
 
 struct SA {
   int arr[4];
   void foo() {

 //TCHECK-DAG: define weak void @[[NAME8]](
 //TCHECK-DAG: define weak void @[[NAME9]](
 //TCHECK-DAG: define weak void @[[NAME10]](
 //TCHECK-DAG: define weak void @[[NAME11]](
 //TCHECK-DAG: define weak void @[[NAME12]](
 
 // CHECK-NTARGET-NOT: __tgt_target
 // CHECK-NTARGET-NOT: __tgt_register_requires
-// CHECK-NTARGET-NOT: __tgt_register_lib
-// CHECK-NTARGET-NOT: __tgt_unregister_lib
 
 // TCHECK-NOT: __tgt_target
-// TCHECK-NOT: __tgt_register_lib
-// TCHECK-NOT: __tgt_unregister_lib
 
 // We have 2 initializers with priority 500
 //CHECK: define internal void [[P500]](
 //CHECK:     call void @{{.+}}()
 //CHECK:     call void @{{.+}}()
 //CHECK-NOT: call void @{{.+}}()
 //CHECK:     ret void
 

 //CHECK:     call void @{{.+}}()
 //CHECK:     call void @{{.+}}()
 //CHECK:     call void @{{.+}}()
 //CHECK:     call void @{{.+}}()
 //CHECK:     call void @{{.+}}()
 //CHECK-NOT: call void @{{.+}}()
 //CHECK:     ret void
 
-// Check registration and unregistration
-
-//CHECK:     define internal void @.omp_offloading.requires_reg()
-//CHECK:     call void @__tgt_register_requires(i64 1)
-//CHECK:     ret void
-
-//CHECK:     define internal void @[[UNREGFN:.+]](i8*)
-//CHECK-SAME: comdat($[[REGFN]]) {
-//CHECK:     call i32 @__tgt_unregister_lib([[DSCTY]]* [[DESC]])
-//CHECK:     ret void
-//CHECK:     declare i32 @__tgt_unregister_lib([[DSCTY]]*)
-
-//CHECK:     define linkonce hidden void @[[REGFN]]()
-//CHECK-SAME: comdat {
-//CHECK:     call i32 @__tgt_register_lib([[DSCTY]]* [[DESC]])
-//CHECK:     call i32 @__cxa_atexit(void (i8*)* @[[UNREGFN]], i8* bitcast ([[DSCTY]]* [[DESC]] to i8*),
-//CHECK:     ret void
-//CHECK:     declare i32 @__tgt_register_lib([[DSCTY]]*)
-
 static __attribute__((init_priority(500))) SA a1;
 SA a2;
 SB __attribute__((init_priority(500))) b1;
 SB __attribute__((init_priority(501))) b2;
 static SC c1;
 SD d1;
 SE e1;
 ST<100> t1;
int bar(int a){
   #pragma omp target
   ++r;
 
   return r + *R;
 }
 
 // Check metadata is properly generated:
 // CHECK:     !omp_offload.info = !{!{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}}
-// CHECK-DAG: = !{i32 0, i32 [[DEVID:-?[0-9]+]], i32 [[FILEID:-?[0-9]+]], !"_ZN2SB3fooEv", i32 217, i32 {{[0-9]+}}}
-// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2SDD1Ev", i32 267, i32 {{[0-9]+}}}
-// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2SEC1Ev", i32 283, i32 {{[0-9]+}}}
-// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2SED1Ev", i32 289, i32 {{[0-9]+}}}
-// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi1000EE3fooEv", i32 300, i32 {{[0-9]+}}}
-// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi100EEC1Ev", i32 306, i32 {{[0-9]+}}}
-// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_Z3bari", i32 433, i32 {{[0-9]+}}}
-// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi100EED1Ev", i32 312, i32 {{[0-9]+}}}
-// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi1000EEC1Ev", i32 306, i32 {{[0-9]+}}}
-// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi1000EED1Ev", i32 312, i32 {{[0-9]+}}}
-// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi100EE3fooEv", i32 300, i32 {{[0-9]+}}}
-// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2SCC1Ev", i32 242, i32 {{[0-9]+}}}
+// CHECK-DAG: = !{i32 0, i32 [[DEVID:-?[0-9]+]], i32 [[FILEID:-?[0-9]+]], !"_ZN2SB3fooEv", i32 205, i32 {{[0-9]+}}}
+// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2SDD1Ev", i32 255, i32 {{[0-9]+}}}
+// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2SEC1Ev", i32 271, i32 {{[0-9]+}}}
+// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2SED1Ev", i32 277, i32 {{[0-9]+}}}
+// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi1000EE3fooEv", i32 288, i32 {{[0-9]+}}}
+// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi100EEC1Ev", i32 294, i32 {{[0-9]+}}}
+// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_Z3bari", i32 398, i32 {{[0-9]+}}}
+// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi100EED1Ev", i32 300, i32 {{[0-9]+}}}
+// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi1000EEC1Ev", i32 294, i32 {{[0-9]+}}}
+// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi1000EED1Ev", i32 300, i32 {{[0-9]+}}}
+// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi100EE3fooEv", i32 288, i32 {{[0-9]+}}}
+// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2SCC1Ev", i32 230, i32 {{[0-9]+}}}
 
 // TCHECK:     !omp_offload.info = !{!{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}}
-// TCHECK-DAG: = !{i32 0, i32 [[DEVID:-?[0-9]+]], i32 [[FILEID:-?[0-9]+]], !"_ZN2SB3fooEv", i32 217, i32 {{[0-9]+}}}
-// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2SDD1Ev", i32 267, i32 {{[0-9]+}}}
-// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2SEC1Ev", i32 283, i32 {{[0-9]+}}}
-// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2SED1Ev", i32 289, i32 {{[0-9]+}}}
-// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi1000EE3fooEv", i32 300, i32 {{[0-9]+}}}
-// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi100EEC1Ev", i32 306, i32 {{[0-9]+}}}
-// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_Z3bari", i32 433, i32 {{[0-9]+}}}
-// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi100EED1Ev", i32 312, i32 {{[0-9]+}}}
-// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi1000EEC1Ev", i32 306, i32 {{[0-9]+}}}
-// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi1000EED1Ev", i32 312, i32 {{[0-9]+}}}
-// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi100EE3fooEv", i32 300, i32 {{[0-9]+}}}
-// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2SCC1Ev", i32 242, i32 {{[0-9]+}}}
+// TCHECK-DAG: = !{i32 0, i32 [[DEVID:-?[0-9]+]], i32 [[FILEID:-?[0-9]+]], !"_ZN2SB3fooEv", i32 205, i32 {{[0-9]+}}}
+// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2SDD1Ev", i32 255, i32 {{[0-9]+}}}
+// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2SEC1Ev", i32 271, i32 {{[0-9]+}}}
+// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2SED1Ev", i32 277, i32 {{[0-9]+}}}
+// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi1000EE3fooEv", i32 288, i32 {{[0-9]+}}}
+// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi100EEC1Ev", i32 294, i32 {{[0-9]+}}}
+// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_Z3bari", i32 398, i32 {{[0-9]+}}}
+// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi100EED1Ev", i32 300, i32 {{[0-9]+}}}
+// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi1000EEC1Ev", i32 294, i32 {{[0-9]+}}}
+// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi1000EED1Ev", i32 300, i32 {{[0-9]+}}}
+// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi100EE3fooEv", i32 288, i32 {{[0-9]+}}}
+// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2SCC1Ev", i32 230, i32 {{[0-9]+}}}
 
 #endif

clang/test/OpenMP/target_depend_codegen.cpp

 // SIMD-ONLY1-NOT: {{__kmpc|__tgt}}
 
 // expected-no-diagnostics
 #ifndef HEADER
 #define HEADER
 
 // CHECK-DAG: [[TT:%.+]] = type { i64, i8 }
 // CHECK-DAG: [[ENTTY:%.+]] = type { i8*, i8*, i[[SZ:32|64]], i32, i32 }
-// CHECK-DAG: [[DEVTY:%.+]] = type { i8*, i8*, [[ENTTY]]*, [[ENTTY]]* }
-// CHECK-DAG: [[DSCTY:%.+]] = type { i32, [[DEVTY]]*, [[ENTTY]]*, [[ENTTY]]* }
 
 // TCHECK: [[ENTTY:%.+]] = type { i8*, i8*, i{{32|64}}, i32, i32 }
 
-// CHECK-DAG: $[[REGFN:\.omp_offloading\..+]] = comdat
-
 // CHECK-DAG: [[SIZET:@.+]] = private unnamed_addr constant [2 x i64] [i64 0, i64 4]
 // CHECK-DAG: [[MAPT:@.+]] = private unnamed_addr constant [2 x i64] [i64 544, i64 800]
 // CHECK-DAG: @{{.*}} = weak constant i8 0
 
 // TCHECK: @{{.+}} = weak constant [[ENTTY]]
 // TCHECK: @{{.+}} = {{.*}}constant [[ENTTY]]
 // TCHECK-NOT: @{{.+}} = weak constant [[ENTTY]]
 
-// Check if offloading descriptor is created.
-// CHECK: [[ENTBEGIN:@.+]] = external constant [[ENTTY]]
-// CHECK: [[ENTEND:@.+]] = external constant [[ENTTY]]
-// CHECK: [[DEVBEGIN:@.+]] = extern_weak constant i8
-// CHECK: [[DEVEND:@.+]] = extern_weak constant i8
-// CHECK: [[IMAGES:@.+]] = internal unnamed_addr constant [1 x [[DEVTY]]] [{{.+}} { i8* [[DEVBEGIN]], i8* [[DEVEND]], [[ENTTY]]* [[ENTBEGIN]], [[ENTTY]]* [[ENTEND]] }], comdat($[[REGFN]])
-// CHECK: [[DESC:@.+]] = internal constant [[DSCTY]] { i32 1, [[DEVTY]]* getelementptr inbounds ([1 x [[DEVTY]]], [1 x [[DEVTY]]]* [[IMAGES]], i32 0, i32 0), [[ENTTY]]* [[ENTBEGIN]], [[ENTTY]]* [[ENTEND]] }, comdat($[[REGFN]])
-
 // Check target registration is registered as a Ctor.
-// CHECK: appending global [2 x { i32, void ()*, i8* }] [{ i32, void ()*, i8* } { i32 0, void ()* @.omp_offloading.requires_reg, i8* null }, { i32, void ()*, i8* } { i32 0, void ()* @[[REGFN]], i8* bitcast (void ()* @[[REGFN]] to i8*) }]
-
+// CHECK: appending global [1 x { i32, void ()*, i8* }] [{ i32, void ()*, i8* } { i32 0, void ()* @.omp_offloading.requires_reg, i8* null }]
 
 template<typename tx, typename ty>
 struct TT{
   tx X;
   ty Y;
 };
 
 int global;

clang/test/OpenMP/target_parallel_codegen.cpp

 
 // CHECK-DAG: %struct.ident_t = type { i32, i32, i32, i32, i8* }
 // CHECK-DAG: [[STR:@.+]] = private unnamed_addr constant [23 x i8] c";unknown;unknown;0;0;;\00"
 // CHECK-DAG: [[DEF_LOC:@.+]] = private unnamed_addr global %struct.ident_t { i32 0, i32 2, i32 0, i32 0, i8* getelementptr inbounds ([23 x i8], [23 x i8]* [[STR]], i32 0, i32 0) }
 
 // CHECK-DAG: [[TT:%.+]] = type { i64, i8 }
 // CHECK-DAG: [[S1:%.+]] = type { double }
 // CHECK-DAG: [[ENTTY:%.+]] = type { i8*, i8*, i[[SZ:32|64]], i32, i32 }
-// CHECK-DAG: [[DEVTY:%.+]] = type { i8*, i8*, [[ENTTY]]*, [[ENTTY]]* }
-// CHECK-DAG: [[DSCTY:%.+]] = type { i32, [[DEVTY]]*, [[ENTTY]]*, [[ENTTY]]* }
 
 // TCHECK: [[ENTTY:%.+]] = type { i8*, i8*, i{{32|64}}, i32, i32 }
 
-// CHECK-DAG: $[[REGFN:\.omp_offloading\..+]] = comdat
-
 // We have 8 target regions, but only 6 that actually will generate offloading
 // code and have mapped arguments, and only 4 have all-constant map sizes.
 
 // CHECK-DAG: [[SIZET2:@.+]] = private unnamed_addr constant [1 x i{{32|64}}] [i64 2]
 // CHECK-DAG: [[MAPT2:@.+]] = private unnamed_addr constant [1 x i64] [i64 800]
 // CHECK-DAG: [[SIZET3:@.+]] = private unnamed_addr constant [2 x i64] [i64 4, i64 2]
 // CHECK-DAG: [[MAPT3:@.+]] = private unnamed_addr constant [2 x i64] [i64 800, i64 800]
 // CHECK-DAG: [[MAPT4:@.+]] = private unnamed_addr constant [9 x i64] [i64 800, i64 547, i64 800, i64 547, i64 547, i64 800, i64 800, i64 547, i64 547]

 // TCHECK: @{{.+}} = weak constant [[ENTTY]]
 // TCHECK: @{{.+}} = weak constant [[ENTTY]]
 // TCHECK: @{{.+}} = weak constant [[ENTTY]]
 // TCHECK: @{{.+}} = weak constant [[ENTTY]]
 // TCHECK: @{{.+}} = weak constant [[ENTTY]]
 // TCHECK: @{{.+}} = weak constant [[ENTTY]]
 // TCHECK-NOT: @{{.+}} = weak constant [[ENTTY]]
 
-// Check if offloading descriptor is created.
-// CHECK: [[ENTBEGIN:@.+]] = external constant [[ENTTY]]
-// CHECK: [[ENTEND:@.+]] = external constant [[ENTTY]]
-// CHECK: [[DEVBEGIN:@.+]] = extern_weak constant i8
-// CHECK: [[DEVEND:@.+]] = extern_weak constant i8
-// CHECK: [[IMAGES:@.+]] = internal unnamed_addr constant [1 x [[DEVTY]]] [{{.+}} { i8* [[DEVBEGIN]], i8* [[DEVEND]], [[ENTTY]]* [[ENTBEGIN]], [[ENTTY]]* [[ENTEND]] }], comdat($[[REGFN]])
-// CHECK: [[DESC:@.+]] = internal constant [[DSCTY]] { i32 1, [[DEVTY]]* getelementptr inbounds ([1 x [[DEVTY]]], [1 x [[DEVTY]]]* [[IMAGES]], i32 0, i32 0), [[ENTTY]]* [[ENTBEGIN]], [[ENTTY]]* [[ENTEND]] }, comdat($[[REGFN]])
-
 // Check target registration is registered as a Ctor.
-// CHECK: appending global [2 x { i32, void ()*, i8* }] [{ i32, void ()*, i8* } { i32 0, void ()* @.omp_offloading.requires_reg, i8* null }, { i32, void ()*, i8* } { i32 0, void ()* @[[REGFN]], i8* bitcast (void ()* @[[REGFN]] to i8*) }]
-
+// CHECK: appending global [1 x { i32, void ()*, i8* }] [{ i32, void ()*, i8* } { i32 0, void ()* @.omp_offloading.requires_reg, i8* null }]
 
 template<typename tx, typename ty>
 struct TT{
   tx X;
   ty Y;
 };
 
 // CHECK: define {{.*}}[[FOO:@.+]](

clang/test/OpenMP/target_parallel_codegen_registration.cpp

 // CHECK-DAG: [[SA:%.+]] = type { [4 x i32] }
 // CHECK-DAG: [[SB:%.+]] = type { [8 x i32] }
 // CHECK-DAG: [[SC:%.+]] = type { [16 x i32] }
 // CHECK-DAG: [[SD:%.+]] = type { [32 x i32] }
 // CHECK-DAG: [[SE:%.+]] = type { [64 x i32] }
 // CHECK-DAG: [[ST1:%.+]] = type { [228 x i32] }
 // CHECK-DAG: [[ST2:%.+]] = type { [1128 x i32] }
 // CHECK-DAG: [[ENTTY:%.+]] = type { i8*, i8*, i[[SZ:32|64]], i32, i32 }
-// CHECK-DAG: [[DEVTY:%.+]] = type { i8*, i8*, [[ENTTY]]*, [[ENTTY]]* }
-// CHECK-DAG: [[DSCTY:%.+]] = type { i32, [[DEVTY]]*, [[ENTTY]]*, [[ENTTY]]* }
 
 // TCHECK:    [[ENTTY:%.+]] = type { i8*, i8*, i[[SZ:32|64]], i32, i32 }
 
-// CHECK-DAG: $[[REGFN:\.omp_offloading\..+]] = comdat
-
 // CHECK-DAG: [[A1:@.+]] = internal global [[SA]]
 // CHECK-DAG: [[A2:@.+]] = global [[SA]]
 // CHECK-DAG: [[B1:@.+]] = global [[SB]]
 // CHECK-DAG: [[B2:@.+]] = global [[SB]]
 // CHECK-DAG: [[C1:@.+]] = internal global [[SC]]
 // CHECK-DAG: [[D1:@.+]] = global [[SD]]
 // CHECK-DAG: [[E1:@.+]] = global [[SE]]
 // CHECK-DAG: [[T1:@.+]] = global [[ST1]]

 // TCHECK-DAG: [[ENTRY9:@.+]] = weak constant [[ENTTY]] { i8* bitcast (void (i[[SZ]])* @{{.*}} to i8*), i8* getelementptr inbounds ([{{.*}} x i8], [{{.*}} x i8]* [[NAMEPTR9]], i32 0, i32 0), i[[SZ]] 0, i32 0, i32 0 }, section ".omp_offloading.entries", align 1
 // TCHECK-DAG: [[NAMEPTR10:@.+]] = internal unnamed_addr constant [{{.*}} x i8] c"[[NAME10:.+]]\00"
 // TCHECK-DAG: [[ENTRY10:@.+]] = weak constant [[ENTTY]] { i8* bitcast (void (i[[SZ]])* @{{.*}} to i8*), i8* getelementptr inbounds ([{{.*}} x i8], [{{.*}} x i8]* [[NAMEPTR10]], i32 0, i32 0), i[[SZ]] 0, i32 0, i32 0 }, section ".omp_offloading.entries", align 1
 // TCHECK-DAG: [[NAMEPTR11:@.+]] = internal unnamed_addr constant [{{.*}} x i8] c"[[NAME11:.+]]\00"
 // TCHECK-DAG: [[ENTRY11:@.+]] = weak constant [[ENTTY]] { i8* bitcast (void (i[[SZ]])* @{{.*}} to i8*), i8* getelementptr inbounds ([{{.*}} x i8], [{{.*}} x i8]* [[NAMEPTR11]], i32 0, i32 0), i[[SZ]] 0, i32 0, i32 0 }, section ".omp_offloading.entries", align 1
 // TCHECK-DAG: [[NAMEPTR12:@.+]] = internal unnamed_addr constant [{{.*}} x i8] c"[[NAME12:.+]]\00"
 // TCHECK-DAG: [[ENTRY12:@.+]] = weak constant [[ENTTY]] { i8* bitcast (void (i[[SZ]])* @{{.*}} to i8*), i8* getelementptr inbounds ([{{.*}} x i8], [{{.*}} x i8]* [[NAMEPTR12]], i32 0, i32 0), i[[SZ]] 0, i32 0, i32 0 }, section ".omp_offloading.entries", align 1
 
-// CHECK: [[ENTBEGIN:@.+]] = external constant [[ENTTY]]
-// CHECK: [[ENTEND:@.+]] = external constant [[ENTTY]]
-// CHECK: [[DEVBEGIN:@.+]] = extern_weak constant i8
-// CHECK: [[DEVEND:@.+]] = extern_weak constant i8
-// CHECK: [[IMAGES:@.+]] = internal unnamed_addr constant [1 x [[DEVTY]]] [{{.+}} { i8* [[DEVBEGIN]], i8* [[DEVEND]], [[ENTTY]]* [[ENTBEGIN]], [[ENTTY]]* [[ENTEND]] }], comdat($[[REGFN]])
-// CHECK: [[DESC:@.+]] = internal constant [[DSCTY]] { i32 1, [[DEVTY]]* getelementptr inbounds ([1 x [[DEVTY]]], [1 x [[DEVTY]]]* [[IMAGES]], i32 0, i32 0), [[ENTTY]]* [[ENTBEGIN]], [[ENTTY]]* [[ENTEND]] }, comdat($[[REGFN]])
-
 // We have 4 initializers, one for the 500 priority, another one for 501, or more for the default priority, and the last one for the offloading registration function.
-// CHECK: @llvm.global_ctors = appending global [5 x { i32, void ()*, i8* }] [
+// CHECK: @llvm.global_ctors = appending global [4 x { i32, void ()*, i8* }] [
 // CHECK-SAME: { i32, void ()*, i8* } { i32 500, void ()* [[P500:@[^,]+]], i8* null },
 // CHECK-SAME: { i32, void ()*, i8* } { i32 501, void ()* [[P501:@[^,]+]], i8* null },
 // CHECK-SAME: { i32, void ()*, i8* } { i32 65535, void ()* [[PMAX:@[^,]+]], i8* null },
-// CHECK-SAME: { i32, void ()*, i8* } { i32 0, void ()* @[[REGFN]], i8* bitcast (void ()* @[[REGFN]] to i8*) }]
 
 // CHECK-NTARGET: @llvm.global_ctors = appending global [3   x { i32, void ()*, i8* }] [
 
 extern int *R;
 
 struct SA {
   int arr[4];
   void foo() {

 //TCHECK-DAG: define weak void @[[NAME7]](
 //TCHECK-DAG: define weak void @[[NAME8]](
 //TCHECK-DAG: define weak void @[[NAME9]](
 //TCHECK-DAG: define weak void @[[NAME10]](
 //TCHECK-DAG: define weak void @[[NAME11]](
 //TCHECK-DAG: define weak void @[[NAME12]](
 
 // CHECK-NTARGET-NOT: __tgt_target
-// CHECK-NTARGET-NOT: __tgt_register_lib
-// CHECK-NTARGET-NOT: __tgt_unregister_lib
 
 // TCHECK-NOT: __tgt_target
-// TCHECK-NOT: __tgt_register_lib
-// TCHECK-NOT: __tgt_unregister_lib
 
 // We have 2 initializers with priority 500
 //CHECK: define internal void [[P500]](
 //CHECK:     call void @{{.+}}()
 //CHECK:     call void @{{.+}}()
 //CHECK-NOT: call void @{{.+}}()
 //CHECK:     ret void
 

 //CHECK:     call void @{{.+}}()
 //CHECK:     call void @{{.+}}()
 //CHECK:     call void @{{.+}}()
 //CHECK:     call void @{{.+}}()
 //CHECK:     call void @{{.+}}()
 //CHECK-NOT: call void @{{.+}}()
 //CHECK:     ret void
 
-// Check registration and unregistration
-
-//CHECK:     define internal void @.omp_offloading.requires_reg()
-//CHECK:     call void @__tgt_register_requires(i64 1)
-//CHECK:     ret void
-
-//CHECK:     define internal void @[[UNREGFN:.+]](i8*)
-//CHECK-SAME: comdat($[[REGFN]]) {
-//CHECK:     call i32 @__tgt_unregister_lib([[DSCTY]]* [[DESC]])
-//CHECK:     ret void
-//CHECK:     declare i32 @__tgt_unregister_lib([[DSCTY]]*)
-
-//CHECK:     define linkonce hidden void @[[REGFN]]()
-//CHECK-SAME: comdat {
-//CHECK:     call i32 @__tgt_register_lib([[DSCTY]]* [[DESC]])
-//CHECK:     call i32 @__cxa_atexit(void (i8*)* @[[UNREGFN]], i8* bitcast ([[DSCTY]]* [[DESC]] to i8*),
-//CHECK:     ret void
-//CHECK:     declare i32 @__tgt_register_lib([[DSCTY]]*)
-
 static __attribute__((init_priority(500))) SA a1;
 SA a2;
 SB __attribute__((init_priority(500))) b1;
 SB __attribute__((init_priority(501))) b2;
 static SC c1;
 SD d1;
 SE e1;
 ST<100> t1;
int bar(int a){
   #pragma omp target parallel
   ++r;
 
   return r + *R;
 }
 
 // Check metadata is properly generated:
 // CHECK:     !omp_offload.info = !{!{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}}
-// CHECK-DAG: = !{i32 0, i32 [[DEVID:-?[0-9]+]], i32 [[FILEID:-?[0-9]+]], !"_ZN2SB3fooEv", i32 216, i32 {{[0-9]+}}}
-// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2SDD1Ev", i32 266, i32 {{[0-9]+}}}
-// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2SEC1Ev", i32 282, i32 {{[0-9]+}}}
-// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2SED1Ev", i32 288, i32 {{[0-9]+}}}
-// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi1000EE3fooEv", i32 299, i32 {{[0-9]+}}}
-// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi100EEC1Ev", i32 305, i32 {{[0-9]+}}}
-// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_Z3bari", i32 431, i32 {{[0-9]+}}}
-// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi100EED1Ev", i32 311, i32 {{[0-9]+}}}
-// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi1000EEC1Ev", i32 305, i32 {{[0-9]+}}}
-// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi1000EED1Ev", i32 311, i32 {{[0-9]+}}}
-// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi100EE3fooEv", i32 299, i32 {{[0-9]+}}}
-// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2SCC1Ev", i32 241, i32 {{[0-9]+}}}
+// CHECK-DAG: = !{i32 0, i32 [[DEVID:-?[0-9]+]], i32 [[FILEID:-?[0-9]+]], !"_ZN2SB3fooEv", i32 204, i32 {{[0-9]+}}}
+// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2SDD1Ev", i32 254, i32 {{[0-9]+}}}
+// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2SEC1Ev", i32 270, i32 {{[0-9]+}}}
+// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2SED1Ev", i32 276, i32 {{[0-9]+}}}
+// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi1000EE3fooEv", i32 287, i32 {{[0-9]+}}}
+// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi100EEC1Ev", i32 293, i32 {{[0-9]+}}}
+// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_Z3bari", i32 396, i32 {{[0-9]+}}}
+// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi100EED1Ev", i32 299, i32 {{[0-9]+}}}
+// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi1000EEC1Ev", i32 293, i32 {{[0-9]+}}}
+// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi1000EED1Ev", i32 299, i32 {{[0-9]+}}}
+// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi100EE3fooEv", i32 287, i32 {{[0-9]+}}}
+// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2SCC1Ev", i32 229, i32 {{[0-9]+}}}
 
 // TCHECK:     !omp_offload.info = !{!{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}}
-// TCHECK-DAG: = !{i32 0, i32 [[DEVID:-?[0-9]+]], i32 [[FILEID:-?[0-9]+]], !"_ZN2SB3fooEv", i32 216, i32 {{[0-9]+}}}
-// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2SDD1Ev", i32 266, i32 {{[0-9]+}}}
-// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2SEC1Ev", i32 282, i32 {{[0-9]+}}}
-// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2SED1Ev", i32 288, i32 {{[0-9]+}}}
-// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi1000EE3fooEv", i32 299, i32 {{[0-9]+}}}
-// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi100EEC1Ev", i32 305, i32 {{[0-9]+}}}
-// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_Z3bari", i32 431, i32 {{[0-9]+}}}
-// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi100EED1Ev", i32 311, i32 {{[0-9]+}}}
-// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi1000EEC1Ev", i32 305, i32 {{[0-9]+}}}
-// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi1000EED1Ev", i32 311, i32 {{[0-9]+}}}
-// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi100EE3fooEv", i32 299, i32 {{[0-9]+}}}
-// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2SCC1Ev", i32 241, i32 {{[0-9]+}}}
+// TCHECK-DAG: = !{i32 0, i32 [[DEVID:-?[0-9]+]], i32 [[FILEID:-?[0-9]+]], !"_ZN2SB3fooEv", i32 204, i32 {{[0-9]+}}}
+// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2SDD1Ev", i32 254, i32 {{[0-9]+}}}
+// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2SEC1Ev", i32 270, i32 {{[0-9]+}}}
+// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2SED1Ev", i32 276, i32 {{[0-9]+}}}
+// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi1000EE3fooEv", i32 287, i32 {{[0-9]+}}}
+// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi100EEC1Ev", i32 293, i32 {{[0-9]+}}}
+// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_Z3bari", i32 396, i32 {{[0-9]+}}}
+// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi100EED1Ev", i32 299, i32 {{[0-9]+}}}
+// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi1000EEC1Ev", i32 293, i32 {{[0-9]+}}}
+// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi1000EED1Ev", i32 299, i32 {{[0-9]+}}}
+// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi100EE3fooEv", i32 287, i32 {{[0-9]+}}}
+// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2SCC1Ev", i32 229, i32 {{[0-9]+}}}
 
 #endif

clang/test/OpenMP/target_parallel_depend_codegen.cpp

 // SIMD-ONLY1-NOT: {{__kmpc|__tgt}}
 
 // expected-no-diagnostics
 #ifndef HEADER
 #define HEADER
 
 // CHECK-DAG: [[TT:%.+]] = type { i64, i8 }
 // CHECK-DAG: [[ENTTY:%.+]] = type { i8*, i8*, i[[SZ:32|64]], i32, i32 }
-// CHECK-DAG: [[DEVTY:%.+]] = type { i8*, i8*, [[ENTTY]]*, [[ENTTY]]* }
-// CHECK-DAG: [[DSCTY:%.+]] = type { i32, [[DEVTY]]*, [[ENTTY]]*, [[ENTTY]]* }
 
 // TCHECK: [[ENTTY:%.+]] = type { i8*, i8*, i{{32|64}}, i32, i32 }
 
-// CHECK-DAG: $[[REGFN:\.omp_offloading\..+]] = comdat
-
 // CHECK-DAG: [[SIZET:@.+]] = private unnamed_addr constant [2 x i64] [i64 0, i64 4]
 // CHECK-DAG: [[MAPT:@.+]] = private unnamed_addr constant [2 x i64] [i64 544, i64 800]
 // CHECK-DAG: @{{.*}} = weak constant i8 0
 
 // TCHECK: @{{.+}} = weak constant [[ENTTY]]
 // TCHECK: @{{.+}} = {{.*}}constant [[ENTTY]]
 // TCHECK-NOT: @{{.+}} = weak constant [[ENTTY]]
 
-// Check if offloading descriptor is created.
-// CHECK: [[ENTBEGIN:@.+]] = external constant [[ENTTY]]
-// CHECK: [[ENTEND:@.+]] = external constant [[ENTTY]]
-// CHECK: [[DEVBEGIN:@.+]] = extern_weak constant i8
-// CHECK: [[DEVEND:@.+]] = extern_weak constant i8
-// CHECK: [[IMAGES:@.+]] = internal unnamed_addr constant [1 x [[DEVTY]]] [{{.+}} { i8* [[DEVBEGIN]], i8* [[DEVEND]], [[ENTTY]]* [[ENTBEGIN]], [[ENTTY]]* [[ENTEND]] }], comdat($[[REGFN]])
-// CHECK: [[DESC:@.+]] = internal constant [[DSCTY]] { i32 1, [[DEVTY]]* getelementptr inbounds ([1 x [[DEVTY]]], [1 x [[DEVTY]]]* [[IMAGES]], i32 0, i32 0), [[ENTTY]]* [[ENTBEGIN]], [[ENTTY]]* [[ENTEND]] }, comdat($[[REGFN]])
-
 // Check target registration is registered as a Ctor.
-// CHECK: appending global [2 x { i32, void ()*, i8* }] [{ i32, void ()*, i8* } { i32 0, void ()* @.omp_offloading.requires_reg, i8* null }, { i32, void ()*, i8* } { i32 0, void ()* @[[REGFN]], i8* bitcast (void ()* @[[REGFN]] to i8*) }]
-
+// CHECK: appending global [1 x { i32, void ()*, i8* }] [{ i32, void ()*, i8* } { i32 0, void ()* @.omp_offloading.requires_reg, i8* null }]
 
 template<typename tx, typename ty>
 struct TT{
   tx X;
   ty Y;
 };
 
 int global;

clang/test/OpenMP/target_parallel_for_codegen.cpp

 
 // CHECK-DAG: %struct.ident_t = type { i32, i32, i32, i32, i8* }
 // CHECK-DAG: [[STR:@.+]] = private unnamed_addr constant [23 x i8] c";unknown;unknown;0;0;;\00"
 // CHECK-DAG: [[DEF_LOC:@.+]] = private unnamed_addr global %struct.ident_t { i32 0, i32 2, i32 0, i32 0, i8* getelementptr inbounds ([23 x i8], [23 x i8]* [[STR]], i32 0, i32 0) }
 
 // CHECK-DAG: [[TT:%.+]] = type { i64, i8 }
 // CHECK-DAG: [[S1:%.+]] = type { double }
 // CHECK-DAG: [[ENTTY:%.+]] = type { i8*, i8*, i[[SZ:32|64]], i32, i32 }
-// CHECK-DAG: [[DEVTY:%.+]] = type { i8*, i8*, [[ENTTY]]*, [[ENTTY]]* }
-// CHECK-DAG: [[DSCTY:%.+]] = type { i32, [[DEVTY]]*, [[ENTTY]]*, [[ENTTY]]* }
 
 // TCHECK: [[ENTTY:%.+]] = type { i8*, i8*, i{{32|64}}, i32, i32 }
 
-// CHECK-DAG: $[[REGFN:\.omp_offloading\..+]] = comdat
-
 // We have 8 target regions, but only 7 that actually will generate offloading
 // code, only 6 will have mapped arguments, and only 4 have all-constant map
 // sizes.
 
 // CHECK-DAG: [[SIZET2:@.+]] = private unnamed_addr constant [3 x i64] [i64 2, i64 4, i64 4]
 // CHECK-DAG: [[MAPT2:@.+]] = private unnamed_addr constant [3 x i64] [i64 800, i64 800, i64 800]
 // CHECK-DAG: [[SIZET3:@.+]] = private unnamed_addr constant [2 x i64] [i64 4, i64 2]
 // CHECK-DAG: [[MAPT3:@.+]] = private unnamed_addr constant [2 x i64] [i64 800, i64 800]

 // TCHECK: @{{.+}} = weak constant [[ENTTY]]
 // TCHECK: @{{.+}} = weak constant [[ENTTY]]
 // TCHECK: @{{.+}} = weak constant [[ENTTY]]
 // TCHECK: @{{.+}} = weak constant [[ENTTY]]
 // TCHECK: @{{.+}} = weak constant [[ENTTY]]
 // TCHECK: @{{.+}} = weak constant [[ENTTY]]
 // TCHECK-NOT: @{{.+}} = weak constant [[ENTTY]]
 
-// Check if offloading descriptor is created.
-// CHECK: [[ENTBEGIN:@.+]] = external constant [[ENTTY]]
-// CHECK: [[ENTEND:@.+]] = external constant [[ENTTY]]
-// CHECK: [[DEVBEGIN:@.+]] = extern_weak constant i8
-// CHECK: [[DEVEND:@.+]] = extern_weak constant i8
-// CHECK: [[IMAGES:@.+]] = internal unnamed_addr constant [1 x [[DEVTY]]] [{{.+}} { i8* [[DEVBEGIN]], i8* [[DEVEND]], [[ENTTY]]* [[ENTBEGIN]], [[ENTTY]]* [[ENTEND]] }], comdat($[[REGFN]])
-// CHECK: [[DESC:@.+]] = internal constant [[DSCTY]] { i32 1, [[DEVTY]]* getelementptr inbounds ([1 x [[DEVTY]]], [1 x [[DEVTY]]]* [[IMAGES]], i32 0, i32 0), [[ENTTY]]* [[ENTBEGIN]], [[ENTTY]]* [[ENTEND]] }, comdat($[[REGFN]])
-
 // Check target registration is registered as a Ctor.
-// CHECK: appending global [2 x { i32, void ()*, i8* }] [{ i32, void ()*, i8* } { i32 0, void ()* @.omp_offloading.requires_reg, i8* null }, { i32, void ()*, i8* } { i32 0, void ()* @[[REGFN]], i8* bitcast (void ()* @[[REGFN]] to i8*) }]
-
+// CHECK: appending global [1 x { i32, void ()*, i8* }] [{ i32, void ()*, i8* } { i32 0, void ()* @.omp_offloading.requires_reg, i8* null }]
 
 template<typename tx, typename ty>
 struct TT{
   tx X;
   ty Y;
 };
 
 // CHECK-LABEL: get_val

clang/test/OpenMP/target_parallel_for_codegen_registration.cpp

 // CHECK-DAG: [[SA:%.+]] = type { [4 x i32] }
 // CHECK-DAG: [[SB:%.+]] = type { [8 x i32] }
 // CHECK-DAG: [[SC:%.+]] = type { [16 x i32] }
 // CHECK-DAG: [[SD:%.+]] = type { [32 x i32] }
 // CHECK-DAG: [[SE:%.+]] = type { [64 x i32] }
 // CHECK-DAG: [[ST1:%.+]] = type { [228 x i32] }
 // CHECK-DAG: [[ST2:%.+]] = type { [1128 x i32] }
 // CHECK-DAG: [[ENTTY:%.+]] = type { i8*, i8*, i[[SZ:32|64]], i32, i32 }
-// CHECK-DAG: [[DEVTY:%.+]] = type { i8*, i8*, [[ENTTY]]*, [[ENTTY]]* }
-// CHECK-DAG: [[DSCTY:%.+]] = type { i32, [[DEVTY]]*, [[ENTTY]]*, [[ENTTY]]* }
 
 // TCHECK:    [[ENTTY:%.+]] = type { i8*, i8*, i[[SZ:32|64]], i32, i32 }
 
-// CHECK-DAG: $[[REGFN:\.omp_offloading\..+]] = comdat
-
 // CHECK-DAG: [[A1:@.+]] = internal global [[SA]]
 // CHECK-DAG: [[A2:@.+]] = global [[SA]]
 // CHECK-DAG: [[B1:@.+]] = global [[SB]]
 // CHECK-DAG: [[B2:@.+]] = global [[SB]]
 // CHECK-DAG: [[C1:@.+]] = internal global [[SC]]
 // CHECK-DAG: [[D1:@.+]] = global [[SD]]
 // CHECK-DAG: [[E1:@.+]] = global [[SE]]
 // CHECK-DAG: [[T1:@.+]] = global [[ST1]]

 // TCHECK-DAG: [[ENTRY9:@.+]] = weak constant [[ENTTY]] { i8* bitcast (void (i[[SZ]])* @{{.*}} to i8*), i8* getelementptr inbounds ([{{.*}} x i8], [{{.*}} x i8]* [[NAMEPTR9]], i32 0, i32 0), i[[SZ]] 0, i32 0, i32 0 }, section ".omp_offloading.entries", align 1
 // TCHECK-DAG: [[NAMEPTR10:@.+]] = internal unnamed_addr constant [{{.*}} x i8] c"[[NAME10:.+]]\00"
 // TCHECK-DAG: [[ENTRY10:@.+]] = weak constant [[ENTTY]] { i8* bitcast (void (i[[SZ]])* @{{.*}} to i8*), i8* getelementptr inbounds ([{{.*}} x i8], [{{.*}} x i8]* [[NAMEPTR10]], i32 0, i32 0), i[[SZ]] 0, i32 0, i32 0 }, section ".omp_offloading.entries", align 1
 // TCHECK-DAG: [[NAMEPTR11:@.+]] = internal unnamed_addr constant [{{.*}} x i8] c"[[NAME11:.+]]\00"
 // TCHECK-DAG: [[ENTRY11:@.+]] = weak constant [[ENTTY]] { i8* bitcast (void (i[[SZ]])* @{{.*}} to i8*), i8* getelementptr inbounds ([{{.*}} x i8], [{{.*}} x i8]* [[NAMEPTR11]], i32 0, i32 0), i[[SZ]] 0, i32 0, i32 0 }, section ".omp_offloading.entries", align 1
 // TCHECK-DAG: [[NAMEPTR12:@.+]] = internal unnamed_addr constant [{{.*}} x i8] c"[[NAME12:.+]]\00"
 // TCHECK-DAG: [[ENTRY12:@.+]] = weak constant [[ENTTY]] { i8* bitcast (void (i[[SZ]])* @{{.*}} to i8*), i8* getelementptr inbounds ([{{.*}} x i8], [{{.*}} x i8]* [[NAMEPTR12]], i32 0, i32 0), i[[SZ]] 0, i32 0, i32 0 }, section ".omp_offloading.entries", align 1
 
-// CHECK: [[ENTBEGIN:@.+]] = external constant [[ENTTY]]
-// CHECK: [[ENTEND:@.+]] = external constant [[ENTTY]]
-// CHECK: [[DEVBEGIN:@.+]] = extern_weak constant i8
-// CHECK: [[DEVEND:@.+]] = extern_weak constant i8
-// CHECK: [[IMAGES:@.+]] = internal unnamed_addr constant [1 x [[DEVTY]]] [{{.+}} { i8* [[DEVBEGIN]], i8* [[DEVEND]], [[ENTTY]]* [[ENTBEGIN]], [[ENTTY]]* [[ENTEND]] }], comdat($[[REGFN]])
-// CHECK: [[DESC:@.+]] = internal constant [[DSCTY]] { i32 1, [[DEVTY]]* getelementptr inbounds ([1 x [[DEVTY]]], [1 x [[DEVTY]]]* [[IMAGES]], i32 0, i32 0), [[ENTTY]]* [[ENTBEGIN]], [[ENTTY]]* [[ENTEND]] }, comdat($[[REGFN]])
-
 // We have 4 initializers, one for the 500 priority, another one for 501, or more for the default priority, and the last one for the offloading registration function.
-// CHECK: @llvm.global_ctors = appending global [5 x { i32, void ()*, i8* }] [
+// CHECK: @llvm.global_ctors = appending global [4 x { i32, void ()*, i8* }] [
 // CHECK-SAME: { i32, void ()*, i8* } { i32 500, void ()* [[P500:@[^,]+]], i8* null },
 // CHECK-SAME: { i32, void ()*, i8* } { i32 501, void ()* [[P501:@[^,]+]], i8* null },
 // CHECK-SAME: { i32, void ()*, i8* } { i32 65535, void ()* [[PMAX:@[^,]+]], i8* null },
-// CHECK-SAME: { i32, void ()*, i8* } { i32 0, void ()* @[[REGFN]], i8* bitcast (void ()* @[[REGFN]] to i8*) }]
 
 // CHECK-NTARGET: @llvm.global_ctors = appending global [3   x { i32, void ()*, i8* }] [
 
 extern int *R;
 
 struct SA {
   int arr[4];
   void foo() {

 //TCHECK-DAG: define weak void @[[NAME7]](
 //TCHECK-DAG: define weak void @[[NAME8]](
 //TCHECK-DAG: define weak void @[[NAME9]](
 //TCHECK-DAG: define weak void @[[NAME10]](
 //TCHECK-DAG: define weak void @[[NAME11]](
 //TCHECK-DAG: define weak void @[[NAME12]](
 
 // CHECK-NTARGET-NOT: __tgt_target
-// CHECK-NTARGET-NOT: __tgt_register_lib
-// CHECK-NTARGET-NOT: __tgt_unregister_lib
 
 // TCHECK-NOT: __tgt_target
-// TCHECK-NOT: __tgt_register_lib
-// TCHECK-NOT: __tgt_unregister_lib
 
 // We have 2 initializers with priority 500
 //CHECK: define internal void [[P500]](
 //CHECK:     call void @{{.+}}()
 //CHECK:     call void @{{.+}}()
 //CHECK-NOT: call void @{{.+}}()
 //CHECK:     ret void
 

 //CHECK:     call void @{{.+}}()
 //CHECK:     call void @{{.+}}()
 //CHECK:     call void @{{.+}}()
 //CHECK:     call void @{{.+}}()
 //CHECK:     call void @{{.+}}()
 //CHECK-NOT: call void @{{.+}}()
 //CHECK:     ret void
 
-// Check registration and unregistration
-
-//CHECK:     define internal void @.omp_offloading.requires_reg()
-//CHECK:     call void @__tgt_register_requires(i64 1)
-//CHECK:     ret void
-
-//CHECK:     define internal void @[[UNREGFN:.+]](i8*)
-//CHECK-SAME: comdat($[[REGFN]]) {
-//CHECK:     call i32 @__tgt_unregister_lib([[DSCTY]]* [[DESC]])
-//CHECK:     ret void
-//CHECK:     declare i32 @__tgt_unregister_lib([[DSCTY]]*)
-
-//CHECK:     define linkonce hidden void @[[REGFN]]()
-//CHECK-SAME: comdat {
-//CHECK:     call i32 @__tgt_register_lib([[DSCTY]]* [[DESC]])
-//CHECK:     call i32 @__cxa_atexit(void (i8*)* @[[UNREGFN]], i8* bitcast ([[DSCTY]]* [[DESC]] to i8*),
-//CHECK:     ret void
-//CHECK:     declare i32 @__tgt_register_lib([[DSCTY]]*)
-
 static __attribute__((init_priority(500))) SA a1;
 SA a2;
 SB __attribute__((init_priority(500))) b1;
 SB __attribute__((init_priority(501))) b2;
 static SC c1;
 SD d1;
 SE e1;
 ST<100> t1;
int bar(int a){
   for (int i = 0; i < 10; ++i)
     ++r;
 
   return r + *R;
 }
 
 // Check metadata is properly generated:
 // CHECK:     !omp_offload.info = !{!{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}}
-// CHECK-DAG: = !{i32 0, i32 [[DEVID:-?[0-9]+]], i32 [[FILEID:-?[0-9]+]], !"_ZN2SB3fooEv", i32 216, i32 {{[0-9]+}}}
-// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2SDD1Ev", i32 268, i32 {{[0-9]+}}}
-// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2SEC1Ev", i32 286, i32 {{[0-9]+}}}
-// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2SED1Ev", i32 293, i32 {{[0-9]+}}}
-// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi1000EE3fooEv", i32 305, i32 {{[0-9]+}}}
-// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi100EEC1Ev", i32 312, i32 {{[0-9]+}}}
-// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_Z3bari", i32 440, i32 {{[0-9]+}}}
-// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi100EED1Ev", i32 319, i32 {{[0-9]+}}}
-// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi1000EEC1Ev", i32 312, i32 {{[0-9]+}}}
-// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi1000EED1Ev", i32 319, i32 {{[0-9]+}}}
-// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi100EE3fooEv", i32 305, i32 {{[0-9]+}}}
-// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2SCC1Ev", i32 242, i32 {{[0-9]+}}}
+// CHECK-DAG: = !{i32 0, i32 [[DEVID:-?[0-9]+]], i32 [[FILEID:-?[0-9]+]], !"_ZN2SB3fooEv", i32 204, i32 {{[0-9]+}}}
+// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2SDD1Ev", i32 256, i32 {{[0-9]+}}}
+// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2SEC1Ev", i32 274, i32 {{[0-9]+}}}
+// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2SED1Ev", i32 281, i32 {{[0-9]+}}}
+// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi1000EE3fooEv", i32 293, i32 {{[0-9]+}}}
+// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi100EEC1Ev", i32 300, i32 {{[0-9]+}}}
+// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_Z3bari", i32 405, i32 {{[0-9]+}}}
+// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi100EED1Ev", i32 307, i32 {{[0-9]+}}}
+// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi1000EEC1Ev", i32 300, i32 {{[0-9]+}}}
+// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi1000EED1Ev", i32 307, i32 {{[0-9]+}}}
+// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi100EE3fooEv", i32 293, i32 {{[0-9]+}}}
+// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2SCC1Ev", i32 230, i32 {{[0-9]+}}}
 
 // TCHECK:     !omp_offload.info = !{!{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}}
-// TCHECK-DAG: = !{i32 0, i32 [[DEVID:-?[0-9]+]], i32 [[FILEID:-?[0-9]+]], !"_ZN2SB3fooEv", i32 216, i32 {{[0-9]+}}}
-// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2SDD1Ev", i32 268, i32 {{[0-9]+}}}
-// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2SEC1Ev", i32 286, i32 {{[0-9]+}}}
-// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2SED1Ev", i32 293, i32 {{[0-9]+}}}
-// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi1000EE3fooEv", i32 305, i32 {{[0-9]+}}}
-// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi100EEC1Ev", i32 312, i32 {{[0-9]+}}}
-// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_Z3bari", i32 440, i32 {{[0-9]+}}}
-// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi100EED1Ev", i32 319, i32 {{[0-9]+}}}
-// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi1000EEC1Ev", i32 312, i32 {{[0-9]+}}}
-// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi1000EED1Ev", i32 319, i32 {{[0-9]+}}}
-// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi100EE3fooEv", i32 305, i32 {{[0-9]+}}}
-// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2SCC1Ev", i32 242, i32 {{[0-9]+}}}
+// TCHECK-DAG: = !{i32 0, i32 [[DEVID:-?[0-9]+]], i32 [[FILEID:-?[0-9]+]], !"_ZN2SB3fooEv", i32 204, i32 {{[0-9]+}}}
+// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2SDD1Ev", i32 256, i32 {{[0-9]+}}}
+// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2SEC1Ev", i32 274, i32 {{[0-9]+}}}
+// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2SED1Ev", i32 281, i32 {{[0-9]+}}}
+// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi1000EE3fooEv", i32 293, i32 {{[0-9]+}}}
+// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi100EEC1Ev", i32 300, i32 {{[0-9]+}}}
+// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_Z3bari", i32 405, i32 {{[0-9]+}}}
+// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi100EED1Ev", i32 307, i32 {{[0-9]+}}}
+// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi1000EEC1Ev", i32 300, i32 {{[0-9]+}}}
+// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi1000EED1Ev", i32 307, i32 {{[0-9]+}}}
+// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi100EE3fooEv", i32 293, i32 {{[0-9]+}}}
+// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2SCC1Ev", i32 230, i32 {{[0-9]+}}}
 
 #endif

clang/test/OpenMP/target_parallel_for_depend_codegen.cpp

 // SIMD-ONLY1-NOT: {{__kmpc|__tgt}}
 
 // expected-no-diagnostics
 #ifndef HEADER
 #define HEADER
 
 // CHECK-DAG: [[TT:%.+]] = type { i64, i8 }
 // CHECK-DAG: [[ENTTY:%.+]] = type { i8*, i8*, i[[SZ:32|64]], i32, i32 }
-// CHECK-DAG: [[DEVTY:%.+]] = type { i8*, i8*, [[ENTTY]]*, [[ENTTY]]* }
-// CHECK-DAG: [[DSCTY:%.+]] = type { i32, [[DEVTY]]*, [[ENTTY]]*, [[ENTTY]]* }
 
 // TCHECK: [[ENTTY:%.+]] = type { i8*, i8*, i{{32|64}}, i32, i32 }
 
-// CHECK-DAG: $[[REGFN:\.omp_offloading\..+]] = comdat
-
 // CHECK-DAG: [[SIZET:@.+]] = private unnamed_addr constant [2 x i64] [i64 0, i64 4]
 // CHECK-DAG: [[MAPT:@.+]] = private unnamed_addr constant [2 x i64] [i64 544, i64 800]
 // CHECK-DAG: @{{.*}} = weak constant i8 0
 
 // TCHECK: @{{.+}} = weak constant [[ENTTY]]
 // TCHECK: @{{.+}} = {{.*}}constant [[ENTTY]]
 // TCHECK-NOT: @{{.+}} = weak constant [[ENTTY]]
 
-// Check if offloading descriptor is created.
-// CHECK: [[ENTBEGIN:@.+]] = external constant [[ENTTY]]
-// CHECK: [[ENTEND:@.+]] = external constant [[ENTTY]]
-// CHECK: [[DEVBEGIN:@.+]] = extern_weak constant i8
-// CHECK: [[DEVEND:@.+]] = extern_weak constant i8
-// CHECK: [[IMAGES:@.+]] = internal unnamed_addr constant [1 x [[DEVTY]]] [{{.+}} { i8* [[DEVBEGIN]], i8* [[DEVEND]], [[ENTTY]]* [[ENTBEGIN]], [[ENTTY]]* [[ENTEND]] }], comdat($[[REGFN]])
-// CHECK: [[DESC:@.+]] = internal constant [[DSCTY]] { i32 1, [[DEVTY]]* getelementptr inbounds ([1 x [[DEVTY]]], [1 x [[DEVTY]]]* [[IMAGES]], i32 0, i32 0), [[ENTTY]]* [[ENTBEGIN]], [[ENTTY]]* [[ENTEND]] }, comdat($[[REGFN]])
-
 // Check target registration is registered as a Ctor.
-// CHECK: appending global [2 x { i32, void ()*, i8* }] [{ i32, void ()*, i8* } { i32 0, void ()* @.omp_offloading.requires_reg, i8* null }, { i32, void ()*, i8* } { i32 0, void ()* @[[REGFN]], i8* bitcast (void ()* @[[REGFN]] to i8*) }]
-
+// CHECK: appending global [1 x { i32, void ()*, i8* }] [{ i32, void ()*, i8* } { i32 0, void ()* @.omp_offloading.requires_reg, i8* null }]
 
 template<typename tx, typename ty>
 struct TT{
   tx X;
   ty Y;
 };
 
 int global;

clang/test/OpenMP/target_parallel_for_simd_codegen.cpp

 #define HEADER
 // CHECK-DAG: %struct.ident_t = type { i32, i32, i32, i32, i8* }
 // CHECK-DAG: [[STR:@.+]] = private unnamed_addr constant [23 x i8] c";unknown;unknown;0;0;;\00"
 // CHECK-DAG: [[DEF_LOC:@.+]] = private unnamed_addr global %struct.ident_t { i32 0, i32 2, i32 0, i32 0, i8* getelementptr inbounds ([23 x i8], [23 x i8]* [[STR]], i32 0, i32 0) }
 
 // CHECK-DAG: [[TT:%.+]] = type { i64, i8 }
 // CHECK-DAG: [[S1:%.+]] = type { double }
 // CHECK-DAG: [[ENTTY:%.+]] = type { i8*, i8*, i[[SZ:32|64]], i32, i32 }
-// CHECK-DAG: [[DEVTY:%.+]] = type { i8*, i8*, [[ENTTY]]*, [[ENTTY]]* }
-// CHECK-DAG: [[DSCTY:%.+]] = type { i32, [[DEVTY]]*, [[ENTTY]]*, [[ENTTY]]* }
 
 // TCHECK: [[ENTTY:%.+]] = type { i8*, i8*, i{{32|64}}, i32, i32 }
 
-// CHECK-DAG: $[[REGFN:\.omp_offloading\..+]] = comdat
-
 // We have 8 target regions, but only 7 that actually will generate offloading
 // code, only 6 will have mapped arguments, and only 4 have all-constant map
 // sizes.
 
 // CHECK-DAG: [[SIZET2:@.+]] = private unnamed_addr constant [3 x i64] [i64 2, i64 4, i64 4]
 // CHECK-DAG: [[MAPT2:@.+]] = private unnamed_addr constant [3 x i64] [i64 800, i64 800, i64 800]
 // CHECK-DAG: [[SIZET3:@.+]] = private unnamed_addr constant [2 x i64] [i64 4, i64 2]
 // CHECK-DAG: [[MAPT3:@.+]] = private unnamed_addr constant [2 x i64] [i64 800, i64 800]

 // TCHECK: @{{.+}} = weak constant [[ENTTY]]
 // TCHECK: @{{.+}} = weak constant [[ENTTY]]
 // TCHECK: @{{.+}} = weak constant [[ENTTY]]
 // TCHECK: @{{.+}} = weak constant [[ENTTY]]
 // TCHECK: @{{.+}} = weak constant [[ENTTY]]
 // TCHECK: @{{.+}} = weak constant [[ENTTY]]
 // TCHECK-NOT: @{{.+}} = weak constant [[ENTTY]]
 
-// Check if offloading descriptor is created.
-// CHECK: [[ENTBEGIN:@.+]] = external constant [[ENTTY]]
-// CHECK: [[ENTEND:@.+]] = external constant [[ENTTY]]
-// CHECK: [[DEVBEGIN:@.+]] = extern_weak constant i8
-// CHECK: [[DEVEND:@.+]] = extern_weak constant i8
-// CHECK: [[IMAGES:@.+]] = internal unnamed_addr constant [1 x [[DEVTY]]] [{{.+}} { i8* [[DEVBEGIN]], i8* [[DEVEND]], [[ENTTY]]* [[ENTBEGIN]], [[ENTTY]]* [[ENTEND]] }], comdat($[[REGFN]])
-// CHECK: [[DESC:@.+]] = internal constant [[DSCTY]] { i32 1, [[DEVTY]]* getelementptr inbounds ([1 x [[DEVTY]]], [1 x [[DEVTY]]]* [[IMAGES]], i32 0, i32 0), [[ENTTY]]* [[ENTBEGIN]], [[ENTTY]]* [[ENTEND]] }, comdat($[[REGFN]])
-
 // Check target registration is registered as a Ctor.
-// CHECK: appending global [2 x { i32, void ()*, i8* }] [{ i32, void ()*, i8* } { i32 0, void ()* @.omp_offloading.requires_reg, i8* null }, { i32, void ()*, i8* } { i32 0, void ()* @[[REGFN]], i8* bitcast (void ()* @[[REGFN]] to i8*) }]
-
+// CHECK: appending global [1 x { i32, void ()*, i8* }] [{ i32, void ()*, i8* } { i32 0, void ()* @.omp_offloading.requires_reg, i8* null }]
 
 template<typename tx, typename ty>
 struct TT{
   tx X;
   ty Y;
 };
 
 // CHECK-LABEL: get_val

clang/test/OpenMP/target_parallel_for_simd_codegen_registration.cpp

 // CHECK-DAG: [[SA:%.+]] = type { [4 x i32] }
 // CHECK-DAG: [[SB:%.+]] = type { [8 x i32] }
 // CHECK-DAG: [[SC:%.+]] = type { [16 x i32] }
 // CHECK-DAG: [[SD:%.+]] = type { [32 x i32] }
 // CHECK-DAG: [[SE:%.+]] = type { [64 x i32] }
 // CHECK-DAG: [[ST1:%.+]] = type { [228 x i32] }
 // CHECK-DAG: [[ST2:%.+]] = type { [1128 x i32] }
 // CHECK-DAG: [[ENTTY:%.+]] = type { i8*, i8*, i[[SZ:32|64]], i32, i32 }
-// CHECK-DAG: [[DEVTY:%.+]] = type { i8*, i8*, [[ENTTY]]*, [[ENTTY]]* }
-// CHECK-DAG: [[DSCTY:%.+]] = type { i32, [[DEVTY]]*, [[ENTTY]]*, [[ENTTY]]* }
 
 // TCHECK:    [[ENTTY:%.+]] = type { i8*, i8*, i[[SZ:32|64]], i32, i32 }
 
-// CHECK-DAG: $[[REGFN:\.omp_offloading\..+]] = comdat
-
 // CHECK-DAG: [[A1:@.+]] = internal global [[SA]]
 // CHECK-DAG: [[A2:@.+]] = global [[SA]]
 // CHECK-DAG: [[B1:@.+]] = global [[SB]]
 // CHECK-DAG: [[B2:@.+]] = global [[SB]]
 // CHECK-DAG: [[C1:@.+]] = internal global [[SC]]
 // CHECK-DAG: [[D1:@.+]] = global [[SD]]
 // CHECK-DAG: [[E1:@.+]] = global [[SE]]
 // CHECK-DAG: [[T1:@.+]] = global [[ST1]]

 // TCHECK-DAG: [[ENTRY9:@.+]] = weak constant [[ENTTY]] { i8* bitcast (void (i[[SZ]])* @{{.*}} to i8*), i8* getelementptr inbounds ([{{.*}} x i8], [{{.*}} x i8]* [[NAMEPTR9]], i32 0, i32 0), i[[SZ]] 0, i32 0, i32 0 }, section ".omp_offloading.entries", align 1
 // TCHECK-DAG: [[NAMEPTR10:@.+]] = internal unnamed_addr constant [{{.*}} x i8] c"[[NAME10:.+]]\00"
 // TCHECK-DAG: [[ENTRY10:@.+]] = weak constant [[ENTTY]] { i8* bitcast (void (i[[SZ]])* @{{.*}} to i8*), i8* getelementptr inbounds ([{{.*}} x i8], [{{.*}} x i8]* [[NAMEPTR10]], i32 0, i32 0), i[[SZ]] 0, i32 0, i32 0 }, section ".omp_offloading.entries", align 1
 // TCHECK-DAG: [[NAMEPTR11:@.+]] = internal unnamed_addr constant [{{.*}} x i8] c"[[NAME11:.+]]\00"
 // TCHECK-DAG: [[ENTRY11:@.+]] = weak constant [[ENTTY]] { i8* bitcast (void (i[[SZ]])* @{{.*}} to i8*), i8* getelementptr inbounds ([{{.*}} x i8], [{{.*}} x i8]* [[NAMEPTR11]], i32 0, i32 0), i[[SZ]] 0, i32 0, i32 0 }, section ".omp_offloading.entries", align 1
 // TCHECK-DAG: [[NAMEPTR12:@.+]] = internal unnamed_addr constant [{{.*}} x i8] c"[[NAME12:.+]]\00"
 // TCHECK-DAG: [[ENTRY12:@.+]] = weak constant [[ENTTY]] { i8* bitcast (void (i[[SZ]])* @{{.*}} to i8*), i8* getelementptr inbounds ([{{.*}} x i8], [{{.*}} x i8]* [[NAMEPTR12]], i32 0, i32 0), i[[SZ]] 0, i32 0, i32 0 }, section ".omp_offloading.entries", align 1
 
-// CHECK: [[ENTBEGIN:@.+]] = external constant [[ENTTY]]
-// CHECK: [[ENTEND:@.+]] = external constant [[ENTTY]]
-// CHECK: [[DEVBEGIN:@.+]] = extern_weak constant i8
-// CHECK: [[DEVEND:@.+]] = extern_weak constant i8
-// CHECK: [[IMAGES:@.+]] = internal unnamed_addr constant [1 x [[DEVTY]]] [{{.+}} { i8* [[DEVBEGIN]], i8* [[DEVEND]], [[ENTTY]]* [[ENTBEGIN]], [[ENTTY]]* [[ENTEND]] }], comdat($[[REGFN]])
-// CHECK: [[DESC:@.+]] = internal constant [[DSCTY]] { i32 1, [[DEVTY]]* getelementptr inbounds ([1 x [[DEVTY]]], [1 x [[DEVTY]]]* [[IMAGES]], i32 0, i32 0), [[ENTTY]]* [[ENTBEGIN]], [[ENTTY]]* [[ENTEND]] }, comdat($[[REGFN]])
-
 // We have 4 initializers, one for the 500 priority, another one for 501, or more for the default priority, and the last one for the offloading registration function.
-// CHECK: @llvm.global_ctors = appending global [5 x { i32, void ()*, i8* }] [
+// CHECK: @llvm.global_ctors = appending global [4 x { i32, void ()*, i8* }] [
 // CHECK-SAME: { i32, void ()*, i8* } { i32 500, void ()* [[P500:@[^,]+]], i8* null },
 // CHECK-SAME: { i32, void ()*, i8* } { i32 501, void ()* [[P501:@[^,]+]], i8* null },
 // CHECK-SAME: { i32, void ()*, i8* } { i32 65535, void ()* [[PMAX:@[^,]+]], i8* null },
-// CHECK-SAME: { i32, void ()*, i8* } { i32 0, void ()* @[[REGFN]], i8* bitcast (void ()* @[[REGFN]] to i8*) }]
 
 // CHECK-NTARGET: @llvm.global_ctors = appending global [3   x { i32, void ()*, i8* }] [
 
 extern int *R;
 
 struct SA {
   int arr[4];
   void foo() {

 //TCHECK-DAG: define weak void @[[NAME7]](
 //TCHECK-DAG: define weak void @[[NAME8]](
 //TCHECK-DAG: define weak void @[[NAME9]](
 //TCHECK-DAG: define weak void @[[NAME10]](
 //TCHECK-DAG: define weak void @[[NAME11]](
 //TCHECK-DAG: define weak void @[[NAME12]](
 
 // CHECK-NTARGET-NOT: __tgt_target
-// CHECK-NTARGET-NOT: __tgt_register_lib
-// CHECK-NTARGET-NOT: __tgt_unregister_lib
 
 // TCHECK-NOT: __tgt_target
-// TCHECK-NOT: __tgt_register_lib
-// TCHECK-NOT: __tgt_unregister_lib
 
 // We have 2 initializers with priority 500
 //CHECK: define internal void [[P500]](
 //CHECK:     call void @{{.+}}()
 //CHECK:     call void @{{.+}}()
 //CHECK-NOT: call void @{{.+}}()
 //CHECK:     ret void
 

 //CHECK:     call void @{{.+}}()
 //CHECK:     call void @{{.+}}()
 //CHECK:     call void @{{.+}}()
 //CHECK:     call void @{{.+}}()
 //CHECK:     call void @{{.+}}()
 //CHECK-NOT: call void @{{.+}}()
 //CHECK:     ret void
 
-// Check registration and unregistration
-
-//CHECK:     define internal void @.omp_offloading.requires_reg()
-//CHECK:     call void @__tgt_register_requires(i64 1)
-//CHECK:     ret void
-
-//CHECK:     define internal void @[[UNREGFN:.+]](i8*)
-//CHECK-SAME: comdat($[[REGFN]]) {
-//CHECK:     call i32 @__tgt_unregister_lib([[DSCTY]]* [[DESC]])
-//CHECK:     ret void
-//CHECK:     declare i32 @__tgt_unregister_lib([[DSCTY]]*)
-
-//CHECK:     define linkonce hidden void @[[REGFN]]()
-//CHECK-SAME: comdat {
-//CHECK:     call i32 @__tgt_register_lib([[DSCTY]]* [[DESC]])
-//CHECK:     call i32 @__cxa_atexit(void (i8*)* @[[UNREGFN]], i8* bitcast ([[DSCTY]]* [[DESC]] to i8*),
-//CHECK:     ret void
-//CHECK:     declare i32 @__tgt_register_lib([[DSCTY]]*)
-
 static __attribute__((init_priority(500))) SA a1;
 SA a2;
 SB __attribute__((init_priority(500))) b1;
 SB __attribute__((init_priority(501))) b2;
 static SC c1;
 SD d1;
 SE e1;
 ST<100> t1;
int bar(int a){
   for (int i = 0; i < 10; ++i)
     ++r;
 
   return r + *R;
 }
 
 // Check metadata is properly generated:
 // CHECK:     !omp_offload.info = !{!{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}}
-// CHECK-DAG: = !{i32 0, i32 [[DEVID:-?[0-9]+]], i32 [[FILEID:-?[0-9]+]], !"_ZN2SB3fooEv", i32 216, i32 {{[0-9]+}}}
-// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2SDD1Ev", i32 268, i32 {{[0-9]+}}}
-// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2SEC1Ev", i32 286, i32 {{[0-9]+}}}
-// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2SED1Ev", i32 293, i32 {{[0-9]+}}}
-// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi1000EE3fooEv", i32 305, i32 {{[0-9]+}}}
-// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi100EEC1Ev", i32 312, i32 {{[0-9]+}}}
-// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_Z3bari", i32 440, i32 {{[0-9]+}}}
-// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi100EED1Ev", i32 319, i32 {{[0-9]+}}}
-// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi1000EEC1Ev", i32 312, i32 {{[0-9]+}}}
-// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi1000EED1Ev", i32 319, i32 {{[0-9]+}}}
-// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi100EE3fooEv", i32 305, i32 {{[0-9]+}}}
-// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2SCC1Ev", i32 242, i32 {{[0-9]+}}}
+// CHECK-DAG: = !{i32 0, i32 [[DEVID:-?[0-9]+]], i32 [[FILEID:-?[0-9]+]], !"_ZN2SB3fooEv", i32 204, i32 {{[0-9]+}}}
+// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2SDD1Ev", i32 256, i32 {{[0-9]+}}}
+// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2SEC1Ev", i32 274, i32 {{[0-9]+}}}
+// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2SED1Ev", i32 281, i32 {{[0-9]+}}}
+// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi1000EE3fooEv", i32 293, i32 {{[0-9]+}}}
+// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi100EEC1Ev", i32 300, i32 {{[0-9]+}}}
+// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_Z3bari", i32 405, i32 {{[0-9]+}}}
+// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi100EED1Ev", i32 307, i32 {{[0-9]+}}}
+// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi1000EEC1Ev", i32 300, i32 {{[0-9]+}}}
+// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi1000EED1Ev", i32 307, i32 {{[0-9]+}}}
+// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi100EE3fooEv", i32 293, i32 {{[0-9]+}}}
+// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2SCC1Ev", i32 230, i32 {{[0-9]+}}}
 
 // TCHECK:     !omp_offload.info = !{!{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}}
-// TCHECK-DAG: = !{i32 0, i32 [[DEVID:-?[0-9]+]], i32 [[FILEID:-?[0-9]+]], !"_ZN2SB3fooEv", i32 216, i32 {{[0-9]+}}}
-// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2SDD1Ev", i32 268, i32 {{[0-9]+}}}
-// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2SEC1Ev", i32 286, i32 {{[0-9]+}}}
-// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2SED1Ev", i32 293, i32 {{[0-9]+}}}
-// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi1000EE3fooEv", i32 305, i32 {{[0-9]+}}}
-// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi100EEC1Ev", i32 312, i32 {{[0-9]+}}}
-// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_Z3bari", i32 440, i32 {{[0-9]+}}}
-// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi100EED1Ev", i32 319, i32 {{[0-9]+}}}
-// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi1000EEC1Ev", i32 312, i32 {{[0-9]+}}}
-// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi1000EED1Ev", i32 319, i32 {{[0-9]+}}}
-// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi100EE3fooEv", i32 305, i32 {{[0-9]+}}}
-// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2SCC1Ev", i32 242, i32 {{[0-9]+}}}
+// TCHECK-DAG: = !{i32 0, i32 [[DEVID:-?[0-9]+]], i32 [[FILEID:-?[0-9]+]], !"_ZN2SB3fooEv", i32 204, i32 {{[0-9]+}}}
+// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2SDD1Ev", i32 256, i32 {{[0-9]+}}}
+// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2SEC1Ev", i32 274, i32 {{[0-9]+}}}
+// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2SED1Ev", i32 281, i32 {{[0-9]+}}}
+// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi1000EE3fooEv", i32 293, i32 {{[0-9]+}}}
+// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi100EEC1Ev", i32 300, i32 {{[0-9]+}}}
+// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_Z3bari", i32 405, i32 {{[0-9]+}}}
+// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi100EED1Ev", i32 307, i32 {{[0-9]+}}}
+// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi1000EEC1Ev", i32 300, i32 {{[0-9]+}}}
+// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi1000EED1Ev", i32 307, i32 {{[0-9]+}}}
+// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi100EE3fooEv", i32 293, i32 {{[0-9]+}}}
+// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2SCC1Ev", i32 230, i32 {{[0-9]+}}}
 
 #endif

clang/test/OpenMP/target_parallel_for_simd_depend_codegen.cpp

 // SIMD-ONLY1-NOT: {{__kmpc|__tgt}}
 
 // expected-no-diagnostics
 #ifndef HEADER
 #define HEADER
 
 // CHECK-DAG: [[TT:%.+]] = type { i64, i8 }
 // CHECK-DAG: [[ENTTY:%.+]] = type { i8*, i8*, i[[SZ:32|64]], i32, i32 }
-// CHECK-DAG: [[DEVTY:%.+]] = type { i8*, i8*, [[ENTTY]]*, [[ENTTY]]* }
-// CHECK-DAG: [[DSCTY:%.+]] = type { i32, [[DEVTY]]*, [[ENTTY]]*, [[ENTTY]]* }
 
 // TCHECK: [[ENTTY:%.+]] = type { i8*, i8*, i{{32|64}}, i32, i32 }
 
-// CHECK-DAG: $[[REGFN:\.omp_offloading\..+]] = comdat
-
 // CHECK-DAG: [[SIZET:@.+]] = private unnamed_addr constant [2 x i64] [i64 0, i64 4]
 // CHECK-DAG: [[MAPT:@.+]] = private unnamed_addr constant [2 x i64] [i64 544, i64 800]
 // CHECK-DAG: @{{.*}} = weak constant i8 0
 
 // TCHECK: @{{.+}} = weak constant [[ENTTY]]
 // TCHECK: @{{.+}} = {{.*}}constant [[ENTTY]]
 // TCHECK-NOT: @{{.+}} = weak constant [[ENTTY]]
 
-// Check if offloading descriptor is created.
-// CHECK: [[ENTBEGIN:@.+]] = external constant [[ENTTY]]
-// CHECK: [[ENTEND:@.+]] = external constant [[ENTTY]]
-// CHECK: [[DEVBEGIN:@.+]] = extern_weak constant i8
-// CHECK: [[DEVEND:@.+]] = extern_weak constant i8
-// CHECK: [[IMAGES:@.+]] = internal unnamed_addr constant [1 x [[DEVTY]]] [{{.+}} { i8* [[DEVBEGIN]], i8* [[DEVEND]], [[ENTTY]]* [[ENTBEGIN]], [[ENTTY]]* [[ENTEND]] }], comdat($[[REGFN]])
-// CHECK: [[DESC:@.+]] = internal constant [[DSCTY]] { i32 1, [[DEVTY]]* getelementptr inbounds ([1 x [[DEVTY]]], [1 x [[DEVTY]]]* [[IMAGES]], i32 0, i32 0), [[ENTTY]]* [[ENTBEGIN]], [[ENTTY]]* [[ENTEND]] }, comdat($[[REGFN]])
-
 // Check target registration is registered as a Ctor.
-// CHECK: appending global [2 x { i32, void ()*, i8* }] [{ i32, void ()*, i8* } { i32 0, void ()* @.omp_offloading.requires_reg, i8* null }, { i32, void ()*, i8* } { i32 0, void ()* @[[REGFN]], i8* bitcast (void ()* @[[REGFN]] to i8*) }]
-
+// CHECK: appending global [1 x { i32, void ()*, i8* }] [{ i32, void ()*, i8* } { i32 0, void ()* @.omp_offloading.requires_reg, i8* null }]
 
 template<typename tx, typename ty>
 struct TT{
   tx X;
   ty Y;
 };
 
 int global;

clang/test/OpenMP/target_parallel_if_codegen.cpp

 #define HEADER
 
 // CHECK-DAG: %struct.ident_t = type { i32, i32, i32, i32, i8* }
 // CHECK-DAG: [[STR:@.+]] = private unnamed_addr constant [23 x i8] c";unknown;unknown;0;0;;\00"
 // CHECK-DAG: [[DEF_LOC:@.+]] = private unnamed_addr global %struct.ident_t { i32 0, i32 2, i32 0, i32 0, i8* getelementptr inbounds ([23 x i8], [23 x i8]* [[STR]], i32 0, i32 0) }
 
 // CHECK-DAG: [[S1:%.+]] = type { double }
 // CHECK-DAG: [[ENTTY:%.+]] = type { i8*, i8*, i[[SZ:32|64]], i32, i32 }
-// CHECK-DAG: [[DEVTY:%.+]] = type { i8*, i8*, [[ENTTY]]*, [[ENTTY]]* }
-// CHECK-DAG: [[DSCTY:%.+]] = type { i32, [[DEVTY]]*, [[ENTTY]]*, [[ENTTY]]* }
 
 // TCHECK: [[ENTTY:%.+]] = type { i8*, i8*, i{{32|64}}, i32, i32 }
 
-// CHECK-DAG: $[[REGFN:\.omp_offloading\..+]] = comdat
-
 // We have 6 target regions
 
 // CHECK-DAG: @{{.*}} = weak constant i8 0
 // CHECK-DAG: @{{.*}} = weak constant i8 0
 // CHECK-DAG: @{{.*}} = weak constant i8 0
 // CHECK-DAG: @{{.*}} = weak constant i8 0
 // CHECK-DAG: @{{.*}} = weak constant i8 0
 // CHECK-DAG: @{{.*}} = weak constant i8 0
 
 // TCHECK: @{{.+}} = weak constant [[ENTTY]]
 // TCHECK: @{{.+}} = weak constant [[ENTTY]]
 // TCHECK: @{{.+}} = weak constant [[ENTTY]]
 // TCHECK: @{{.+}} = weak constant [[ENTTY]]
 // TCHECK: @{{.+}} = weak constant [[ENTTY]]
 // TCHECK: @{{.+}} = weak constant [[ENTTY]]
 
-// Check if offloading descriptor is created.
-// CHECK: [[ENTBEGIN:@.+]] = external constant [[ENTTY]]
-// CHECK: [[ENTEND:@.+]] = external constant [[ENTTY]]
-// CHECK: [[DEVBEGIN:@.+]] = extern_weak constant i8
-// CHECK: [[DEVEND:@.+]] = extern_weak constant i8
-// CHECK: [[IMAGES:@.+]] = internal unnamed_addr constant [1 x [[DEVTY]]] [{{.+}} { i8* [[DEVBEGIN]], i8* [[DEVEND]], [[ENTTY]]* [[ENTBEGIN]], [[ENTTY]]* [[ENTEND]] }], comdat($[[REGFN]])
-// CHECK: [[DESC:@.+]] = internal constant [[DSCTY]] { i32 1, [[DEVTY]]* getelementptr inbounds ([1 x [[DEVTY]]], [1 x [[DEVTY]]]* [[IMAGES]], i32 0, i32 0), [[ENTTY]]* [[ENTBEGIN]], [[ENTTY]]* [[ENTEND]] }, comdat($[[REGFN]])
-
 // Check target registration is registered as a Ctor.
-// CHECK: appending global [2 x { i32, void ()*, i8* }] [{ i32, void ()*, i8* } { i32 0, void ()* @.omp_offloading.requires_reg, i8* null }, { i32, void ()*, i8* } { i32 0, void ()* @[[REGFN]], i8* bitcast (void ()* @[[REGFN]] to i8*) }]
-
+// CHECK: appending global [1 x { i32, void ()*, i8* }] [{ i32, void ()*, i8* } { i32 0, void ()* @.omp_offloading.requires_reg, i8* null }]
 
 template<typename tx>
 tx ftemplate(int n) {
   tx a = 0;
 
   #pragma omp target parallel if(parallel: 0)
   {
     a += 1;

clang/test/OpenMP/target_parallel_num_threads_codegen.cpp

 #define HEADER
 
 // CHECK-DAG: %struct.ident_t = type { i32, i32, i32, i32, i8* }
 // CHECK-DAG: [[STR:@.+]] = private unnamed_addr constant [23 x i8] c";unknown;unknown;0;0;;\00"
 // CHECK-DAG: [[DEF_LOC:@.+]] = private unnamed_addr global %struct.ident_t { i32 0, i32 2, i32 0, i32 0, i8* getelementptr inbounds ([23 x i8], [23 x i8]* [[STR]], i32 0, i32 0) }
 
 // CHECK-DAG: [[S1:%.+]] = type { double }
 // CHECK-DAG: [[ENTTY:%.+]] = type { i8*, i8*, i[[SZ:32|64]], i32, i32 }
-// CHECK-DAG: [[DEVTY:%.+]] = type { i8*, i8*, [[ENTTY]]*, [[ENTTY]]* }
-// CHECK-DAG: [[DSCTY:%.+]] = type { i32, [[DEVTY]]*, [[ENTTY]]*, [[ENTTY]]* }
 
 // TCHECK: [[ENTTY:%.+]] = type { i8*, i8*, i{{32|64}}, i32, i32 }
 
-// CHECK-DAG: $[[REGFN:\.omp_offloading\..+]] = comdat
-
 // We have 6 target regions
 
 // CHECK-DAG: @{{.*}} = weak constant i8 0
 // CHECK-DAG: @{{.*}} = weak constant i8 0
 // CHECK-DAG: @{{.*}} = weak constant i8 0
 // CHECK-DAG: @{{.*}} = weak constant i8 0
 // CHECK-DAG: @{{.*}} = weak constant i8 0
 // CHECK-DAG: @{{.*}} = weak constant i8 0
 
 // TCHECK: @{{.+}} = weak constant [[ENTTY]]
 // TCHECK: @{{.+}} = weak constant [[ENTTY]]
 // TCHECK: @{{.+}} = weak constant [[ENTTY]]
 // TCHECK: @{{.+}} = weak constant [[ENTTY]]
 // TCHECK: @{{.+}} = weak constant [[ENTTY]]
 // TCHECK: @{{.+}} = weak constant [[ENTTY]]
 
-// Check if offloading descriptor is created.
-// CHECK: [[ENTBEGIN:@.+]] = external constant [[ENTTY]]
-// CHECK: [[ENTEND:@.+]] = external constant [[ENTTY]]
-// CHECK: [[DEVBEGIN:@.+]] = extern_weak constant i8
-// CHECK: [[DEVEND:@.+]] = extern_weak constant i8
-// CHECK: [[IMAGES:@.+]] = internal unnamed_addr constant [1 x [[DEVTY]]] [{{.+}} { i8* [[DEVBEGIN]], i8* [[DEVEND]], [[ENTTY]]* [[ENTBEGIN]], [[ENTTY]]* [[ENTEND]] }], comdat($[[REGFN]])
-// CHECK: [[DESC:@.+]] = internal constant [[DSCTY]] { i32 1, [[DEVTY]]* getelementptr inbounds ([1 x [[DEVTY]]], [1 x [[DEVTY]]]* [[IMAGES]], i32 0, i32 0), [[ENTTY]]* [[ENTBEGIN]], [[ENTTY]]* [[ENTEND]] }, comdat($[[REGFN]])
-
 // Check target registration is registered as a Ctor.
-// CHECK: appending global [2 x { i32, void ()*, i8* }] [{ i32, void ()*, i8* } { i32 0, void ()* @.omp_offloading.requires_reg, i8* null }, { i32, void ()*, i8* } { i32 0, void ()* @[[REGFN]], i8* bitcast (void ()* @[[REGFN]] to i8*) }]
-
+// CHECK: appending global [1 x { i32, void ()*, i8* }] [{ i32, void ()*, i8* } { i32 0, void ()* @.omp_offloading.requires_reg, i8* null }]
 
 template<typename tx>
 tx ftemplate(int n) {
   tx a = 0;
 
   #pragma omp target parallel num_threads(tx(20))
   {
   }

clang/test/OpenMP/target_simd_codegen.cpp

 
 // expected-no-diagnostics
 #ifndef HEADER
 #define HEADER
 
 // CHECK-DAG: [[TT:%.+]] = type { i64, i8 }
 // CHECK-DAG: [[S1:%.+]] = type { double }
 // CHECK-DAG: [[ENTTY:%.+]] = type { i8*, i8*, i[[SZ:32|64]], i32, i32 }
-// CHECK-DAG: [[DEVTY:%.+]] = type { i8*, i8*, [[ENTTY]]*, [[ENTTY]]* }
-// CHECK-DAG: [[DSCTY:%.+]] = type { i32, [[DEVTY]]*, [[ENTTY]]*, [[ENTTY]]* }
 
 // TCHECK: [[ENTTY:%.+]] = type { i8*, i8*, i{{32|64}}, i32, i32 }
 
-// CHECK-DAG: $[[REGFN:\.omp_offloading\..+]] = comdat
-
 // We have 8 target regions, but only 7 that actually will generate offloading
 // code, only 6 will have mapped arguments, and only 4 have all-constant map
 // sizes.
 
 // CHECK-DAG: [[SIZET2:@.+]] = private unnamed_addr constant [3 x i64] [i64 2, i64 4, i64 4]
 // CHECK-DAG: [[MAPT2:@.+]] = private unnamed_addr constant [3 x i64] [i64 800, i64 800, i64 800]
 // CHECK-DAG: [[SIZET3:@.+]] = private unnamed_addr constant [2 x i64] [i64 4, i64 2]
 // CHECK-DAG: [[MAPT3:@.+]] = private unnamed_addr constant [2 x i64] [i64 800, i64 800]

 // TCHECK: @{{.+}} = weak constant [[ENTTY]]
 // TCHECK: @{{.+}} = weak constant [[ENTTY]]
 // TCHECK: @{{.+}} = weak constant [[ENTTY]]
 // TCHECK: @{{.+}} = weak constant [[ENTTY]]
 // TCHECK: @{{.+}} = weak constant [[ENTTY]]
 // TCHECK: @{{.+}} = weak constant [[ENTTY]]
 // TCHECK-NOT: @{{.+}} = weak constant [[ENTTY]]
 
-// Check if offloading descriptor is created.
-// CHECK: [[ENTBEGIN:@.+]] = external constant [[ENTTY]]
-// CHECK: [[ENTEND:@.+]] = external constant [[ENTTY]]
-// CHECK: [[DEVBEGIN:@.+]] = extern_weak constant i8
-// CHECK: [[DEVEND:@.+]] = extern_weak constant i8
-// CHECK: [[IMAGES:@.+]] = internal unnamed_addr constant [1 x [[DEVTY]]] [{{.+}} { i8* [[DEVBEGIN]], i8* [[DEVEND]], [[ENTTY]]* [[ENTBEGIN]], [[ENTTY]]* [[ENTEND]] }], comdat($[[REGFN]])
-// CHECK: [[DESC:@.+]] = internal constant [[DSCTY]] { i32 1, [[DEVTY]]* getelementptr inbounds ([1 x [[DEVTY]]], [1 x [[DEVTY]]]* [[IMAGES]], i32 0, i32 0), [[ENTTY]]* [[ENTBEGIN]], [[ENTTY]]* [[ENTEND]] }, comdat($[[REGFN]])
-
 // Check target registration is registered as a Ctor.
-// CHECK: appending global [2 x { i32, void ()*, i8* }] [{ i32, void ()*, i8* } { i32 0, void ()* @.omp_offloading.requires_reg, i8* null }, { i32, void ()*, i8* } { i32 0, void ()* @[[REGFN]], i8* bitcast (void ()* @[[REGFN]] to i8*) }]
-
+// CHECK: appending global [1 x { i32, void ()*, i8* }] [{ i32, void ()*, i8* } { i32 0, void ()* @.omp_offloading.requires_reg, i8* null }]
 
 template<typename tx, typename ty>
 struct TT{
   tx X;
   ty Y;
 };
 
 // CHECK-LABEL: get_val

clang/test/OpenMP/target_simd_codegen_registration.cpp

 // CHECK-DAG: [[SA:%.+]] = type { [4 x i32] }
 // CHECK-DAG: [[SB:%.+]] = type { [8 x i32] }
 // CHECK-DAG: [[SC:%.+]] = type { [16 x i32] }
 // CHECK-DAG: [[SD:%.+]] = type { [32 x i32] }
 // CHECK-DAG: [[SE:%.+]] = type { [64 x i32] }
 // CHECK-DAG: [[ST1:%.+]] = type { [228 x i32] }
 // CHECK-DAG: [[ST2:%.+]] = type { [1128 x i32] }
 // CHECK-DAG: [[ENTTY:%.+]] = type { i8*, i8*, i[[SZ:32|64]], i32, i32 }
-// CHECK-DAG: [[DEVTY:%.+]] = type { i8*, i8*, [[ENTTY]]*, [[ENTTY]]* }
-// CHECK-DAG: [[DSCTY:%.+]] = type { i32, [[DEVTY]]*, [[ENTTY]]*, [[ENTTY]]* }
 
 // TCHECK:    [[ENTTY:%.+]] = type { i8*, i8*, i[[SZ:32|64]], i32, i32 }
 
-// CHECK-DAG: $[[REGFN:\.omp_offloading\..+]] = comdat
-
 // CHECK-DAG: [[A1:@.+]] = internal global [[SA]]
 // CHECK-DAG: [[A2:@.+]] = global [[SA]]
 // CHECK-DAG: [[B1:@.+]] = global [[SB]]
 // CHECK-DAG: [[B2:@.+]] = global [[SB]]
 // CHECK-DAG: [[C1:@.+]] = internal global [[SC]]
 // CHECK-DAG: [[D1:@.+]] = global [[SD]]
 // CHECK-DAG: [[E1:@.+]] = global [[SE]]
 // CHECK-DAG: [[T1:@.+]] = global [[ST1]]

 // TCHECK-DAG: [[ENTRY9:@.+]] = weak constant [[ENTTY]] { i8* bitcast (void (i[[SZ]])* @{{.*}} to i8*), i8* getelementptr inbounds ([{{.*}} x i8], [{{.*}} x i8]* [[NAMEPTR9]], i32 0, i32 0), i[[SZ]] 0, i32 0, i32 0 }, section ".omp_offloading.entries", align 1
 // TCHECK-DAG: [[NAMEPTR10:@.+]] = internal unnamed_addr constant [{{.*}} x i8] c"[[NAME10:.+]]\00"
 // TCHECK-DAG: [[ENTRY10:@.+]] = weak constant [[ENTTY]] { i8* bitcast (void (i[[SZ]])* @{{.*}} to i8*), i8* getelementptr inbounds ([{{.*}} x i8], [{{.*}} x i8]* [[NAMEPTR10]], i32 0, i32 0), i[[SZ]] 0, i32 0, i32 0 }, section ".omp_offloading.entries", align 1
 // TCHECK-DAG: [[NAMEPTR11:@.+]] = internal unnamed_addr constant [{{.*}} x i8] c"[[NAME11:.+]]\00"
 // TCHECK-DAG: [[ENTRY11:@.+]] = weak constant [[ENTTY]] { i8* bitcast (void (i[[SZ]])* @{{.*}} to i8*), i8* getelementptr inbounds ([{{.*}} x i8], [{{.*}} x i8]* [[NAMEPTR11]], i32 0, i32 0), i[[SZ]] 0, i32 0, i32 0 }, section ".omp_offloading.entries", align 1
 // TCHECK-DAG: [[NAMEPTR12:@.+]] = internal unnamed_addr constant [{{.*}} x i8] c"[[NAME12:.+]]\00"
 // TCHECK-DAG: [[ENTRY12:@.+]] = weak constant [[ENTTY]] { i8* bitcast (void (i[[SZ]])* @{{.*}} to i8*), i8* getelementptr inbounds ([{{.*}} x i8], [{{.*}} x i8]* [[NAMEPTR12]], i32 0, i32 0), i[[SZ]] 0, i32 0, i32 0 }, section ".omp_offloading.entries", align 1
 
-// CHECK: [[ENTBEGIN:@.+]] = external constant [[ENTTY]]
-// CHECK: [[ENTEND:@.+]] = external constant [[ENTTY]]
-// CHECK: [[DEVBEGIN:@.+]] = extern_weak constant i8
-// CHECK: [[DEVEND:@.+]] = extern_weak constant i8
-// CHECK: [[IMAGES:@.+]] = internal unnamed_addr constant [1 x [[DEVTY]]] [{{.+}} { i8* [[DEVBEGIN]], i8* [[DEVEND]], [[ENTTY]]* [[ENTBEGIN]], [[ENTTY]]* [[ENTEND]] }], comdat($[[REGFN]])
-// CHECK: [[DESC:@.+]] = internal constant [[DSCTY]] { i32 1, [[DEVTY]]* getelementptr inbounds ([1 x [[DEVTY]]], [1 x [[DEVTY]]]* [[IMAGES]], i32 0, i32 0), [[ENTTY]]* [[ENTBEGIN]], [[ENTTY]]* [[ENTEND]] }, comdat($[[REGFN]])
-
 // We have 4 initializers, one for the 500 priority, another one for 501, or more for the default priority, and the last one for the offloading registration function.
-// CHECK: @llvm.global_ctors = appending global [5 x { i32, void ()*, i8* }] [
+// CHECK: @llvm.global_ctors = appending global [4 x { i32, void ()*, i8* }] [
 // CHECK-SAME: { i32, void ()*, i8* } { i32 500, void ()* [[P500:@[^,]+]], i8* null },
 // CHECK-SAME: { i32, void ()*, i8* } { i32 501, void ()* [[P501:@[^,]+]], i8* null },
 // CHECK-SAME: { i32, void ()*, i8* } { i32 65535, void ()* [[PMAX:@[^,]+]], i8* null },
-// CHECK-SAME: { i32, void ()*, i8* } { i32 0, void ()* @[[REGFN]], i8* bitcast (void ()* @[[REGFN]] to i8*) }]
 
 // CHECK-NTARGET: @llvm.global_ctors = appending global [3   x { i32, void ()*, i8* }] [
 
 extern int *R;
 
 struct SA {
   int arr[4];
   void foo() {

 //TCHECK-DAG: define weak void @[[NAME7]](
 //TCHECK-DAG: define weak void @[[NAME8]](
 //TCHECK-DAG: define weak void @[[NAME9]](
 //TCHECK-DAG: define weak void @[[NAME10]](
 //TCHECK-DAG: define weak void @[[NAME11]](
 //TCHECK-DAG: define weak void @[[NAME12]](
 
 // CHECK-NTARGET-NOT: __tgt_target
-// CHECK-NTARGET-NOT: __tgt_register_lib
-// CHECK-NTARGET-NOT: __tgt_unregister_lib
 
 // TCHECK-NOT: __tgt_target
-// TCHECK-NOT: __tgt_register_lib
-// TCHECK-NOT: __tgt_unregister_lib
 
 // We have 2 initializers with priority 500
 //CHECK: define internal void [[P500]](
 //CHECK:     call void @{{.+}}()
 //CHECK:     call void @{{.+}}()
 //CHECK-NOT: call void @{{.+}}()
 //CHECK:     ret void
 

 //CHECK:     call void @{{.+}}()
 //CHECK:     call void @{{.+}}()
 //CHECK:     call void @{{.+}}()
 //CHECK:     call void @{{.+}}()
 //CHECK:     call void @{{.+}}()
 //CHECK-NOT: call void @{{.+}}()
 //CHECK:     ret void
 
-// Check registration and unregistration
-
-//CHECK:     define internal void @.omp_offloading.requires_reg()
-//CHECK:     call void @__tgt_register_requires(i64 1)
-//CHECK:     ret void
-
-//CHECK:     define internal void @[[UNREGFN:.+]](i8*)
-//CHECK-SAME: comdat($[[REGFN]]) {
-//CHECK:     call i32 @__tgt_unregister_lib([[DSCTY]]* [[DESC]])
-//CHECK:     ret void
-//CHECK:     declare i32 @__tgt_unregister_lib([[DSCTY]]*)
-
-//CHECK:     define linkonce hidden void @[[REGFN]]()
-//CHECK-SAME: comdat {
-//CHECK:     call i32 @__tgt_register_lib([[DSCTY]]* [[DESC]])
-//CHECK:     call i32 @__cxa_atexit(void (i8*)* @[[UNREGFN]], i8* bitcast ([[DSCTY]]* [[DESC]] to i8*),
-//CHECK:     ret void
-//CHECK:     declare i32 @__tgt_register_lib([[DSCTY]]*)
-
 static __attribute__((init_priority(500))) SA a1;
 SA a2;
 SB __attribute__((init_priority(500))) b1;
 SB __attribute__((init_priority(501))) b2;
 static SC c1;
 SD d1;
 SE e1;
 ST<100> t1;
int bar(int a){
   for (int i = 0; i < 10; ++i)
     ++r;
 
   return r + *R;
 }
 
 // Check metadata is properly generated:
 // CHECK:     !omp_offload.info = !{!{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}}
-// CHECK-DAG: = !{i32 0, i32 [[DEVID:-?[0-9]+]], i32 [[FILEID:-?[0-9]+]], !"_ZN2SB3fooEv", i32 216, i32 {{[0-9]+}}}
-// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2SDD1Ev", i32 268, i32 {{[0-9]+}}}
-// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2SEC1Ev", i32 286, i32 {{[0-9]+}}}
-// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2SED1Ev", i32 293, i32 {{[0-9]+}}}
-// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi1000EE3fooEv", i32 305, i32 {{[0-9]+}}}
-// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi100EEC1Ev", i32 312, i32 {{[0-9]+}}}
-// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_Z3bari", i32 440, i32 {{[0-9]+}}}
-// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi100EED1Ev", i32 319, i32 {{[0-9]+}}}
-// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi1000EEC1Ev", i32 312, i32 {{[0-9]+}}}
-// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi1000EED1Ev", i32 319, i32 {{[0-9]+}}}
-// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi100EE3fooEv", i32 305, i32 {{[0-9]+}}}
-// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2SCC1Ev", i32 242, i32 {{[0-9]+}}}
+// CHECK-DAG: = !{i32 0, i32 [[DEVID:-?[0-9]+]], i32 [[FILEID:-?[0-9]+]], !"_ZN2SB3fooEv", i32 204, i32 {{[0-9]+}}}
+// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2SDD1Ev", i32 256, i32 {{[0-9]+}}}
+// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2SEC1Ev", i32 274, i32 {{[0-9]+}}}
+// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2SED1Ev", i32 281, i32 {{[0-9]+}}}
+// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi1000EE3fooEv", i32 293, i32 {{[0-9]+}}}
+// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi100EEC1Ev", i32 300, i32 {{[0-9]+}}}
+// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_Z3bari", i32 405, i32 {{[0-9]+}}}
+// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi100EED1Ev", i32 307, i32 {{[0-9]+}}}
+// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi1000EEC1Ev", i32 300, i32 {{[0-9]+}}}
+// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi1000EED1Ev", i32 307, i32 {{[0-9]+}}}
+// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi100EE3fooEv", i32 293, i32 {{[0-9]+}}}
+// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2SCC1Ev", i32 230, i32 {{[0-9]+}}}
 
 // TCHECK:     !omp_offload.info = !{!{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}}
-// TCHECK-DAG: = !{i32 0, i32 [[DEVID:-?[0-9]+]], i32 [[FILEID:-?[0-9]+]], !"_ZN2SB3fooEv", i32 216, i32 {{[0-9]+}}}
-// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2SDD1Ev", i32 268, i32 {{[0-9]+}}}
-// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2SEC1Ev", i32 286, i32 {{[0-9]+}}}
-// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2SED1Ev", i32 293, i32 {{[0-9]+}}}
-// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi1000EE3fooEv", i32 305, i32 {{[0-9]+}}}
-// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi100EEC1Ev", i32 312, i32 {{[0-9]+}}}
-// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_Z3bari", i32 440, i32 {{[0-9]+}}}
-// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi100EED1Ev", i32 319, i32 {{[0-9]+}}}
-// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi1000EEC1Ev", i32 312, i32 {{[0-9]+}}}
-// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi1000EED1Ev", i32 319, i32 {{[0-9]+}}}
-// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi100EE3fooEv", i32 305, i32 {{[0-9]+}}}
-// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2SCC1Ev", i32 242, i32 {{[0-9]+}}}
+// TCHECK-DAG: = !{i32 0, i32 [[DEVID:-?[0-9]+]], i32 [[FILEID:-?[0-9]+]], !"_ZN2SB3fooEv", i32 204, i32 {{[0-9]+}}}
+// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2SDD1Ev", i32 256, i32 {{[0-9]+}}}
+// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2SEC1Ev", i32 274, i32 {{[0-9]+}}}
+// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2SED1Ev", i32 281, i32 {{[0-9]+}}}
+// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi1000EE3fooEv", i32 293, i32 {{[0-9]+}}}
+// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi100EEC1Ev", i32 300, i32 {{[0-9]+}}}
+// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_Z3bari", i32 405, i32 {{[0-9]+}}}
+// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi100EED1Ev", i32 307, i32 {{[0-9]+}}}
+// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi1000EEC1Ev", i32 300, i32 {{[0-9]+}}}
+// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi1000EED1Ev", i32 307, i32 {{[0-9]+}}}
+// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi100EE3fooEv", i32 293, i32 {{[0-9]+}}}
+// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2SCC1Ev", i32 230, i32 {{[0-9]+}}}
 
 #endif

clang/test/OpenMP/target_simd_depend_codegen.cpp

 // SIMD-ONLY1-NOT: {{__kmpc|__tgt}}
 
 // expected-no-diagnostics
 #ifndef HEADER
 #define HEADER
 
 // CHECK-DAG: [[TT:%.+]] = type { i64, i8 }
 // CHECK-DAG: [[ENTTY:%.+]] = type { i8*, i8*, i[[SZ:32|64]], i32, i32 }
-// CHECK-DAG: [[DEVTY:%.+]] = type { i8*, i8*, [[ENTTY]]*, [[ENTTY]]* }
-// CHECK-DAG: [[DSCTY:%.+]] = type { i32, [[DEVTY]]*, [[ENTTY]]*, [[ENTTY]]* }
 
 // TCHECK: [[ENTTY:%.+]] = type { i8*, i8*, i{{32|64}}, i32, i32 }
 
-// CHECK-DAG: $[[REGFN:\.omp_offloading\..+]] = comdat
-
 // CHECK-DAG: [[SIZET:@.+]] = private unnamed_addr constant [2 x i64] [i64 0, i64 4]
 // CHECK-DAG: [[MAPT:@.+]] = private unnamed_addr constant [2 x i64] [i64 544, i64 800]
 // CHECK-DAG: @{{.*}} = weak constant i8 0
 
 // TCHECK: @{{.+}} = weak constant [[ENTTY]]
 // TCHECK: @{{.+}} = {{.*}}constant [[ENTTY]]
 // TCHECK-NOT: @{{.+}} = weak constant [[ENTTY]]
 
-// Check if offloading descriptor is created.
-// CHECK: [[ENTBEGIN:@.+]] = external constant [[ENTTY]]
-// CHECK: [[ENTEND:@.+]] = external constant [[ENTTY]]
-// CHECK: [[DEVBEGIN:@.+]] = extern_weak constant i8
-// CHECK: [[DEVEND:@.+]] = extern_weak constant i8
-// CHECK: [[IMAGES:@.+]] = internal unnamed_addr constant [1 x [[DEVTY]]] [{{.+}} { i8* [[DEVBEGIN]], i8* [[DEVEND]], [[ENTTY]]* [[ENTBEGIN]], [[ENTTY]]* [[ENTEND]] }], comdat($[[REGFN]])
-// CHECK: [[DESC:@.+]] = internal constant [[DSCTY]] { i32 1, [[DEVTY]]* getelementptr inbounds ([1 x [[DEVTY]]], [1 x [[DEVTY]]]* [[IMAGES]], i32 0, i32 0), [[ENTTY]]* [[ENTBEGIN]], [[ENTTY]]* [[ENTEND]] }, comdat($[[REGFN]])
-
 // Check target registration is registered as a Ctor.
-// CHECK: appending global [2 x { i32, void ()*, i8* }] [{ i32, void ()*, i8* } { i32 0, void ()* @.omp_offloading.requires_reg, i8* null }, { i32, void ()*, i8* } { i32 0, void ()* @[[REGFN]], i8* bitcast (void ()* @[[REGFN]] to i8*) }]
-
+// CHECK: appending global [1 x { i32, void ()*, i8* }] [{ i32, void ()*, i8* } { i32 0, void ()* @.omp_offloading.requires_reg, i8* null }]
 
 template<typename tx, typename ty>
 struct TT{
   tx X;
   ty Y;
 };
 
 int global;

clang/test/OpenMP/target_teams_codegen.cpp

 
 // CHECK-DAG: %struct.ident_t = type { i32, i32, i32, i32, i8* }
 // CHECK-DAG: [[STR:@.+]] = private unnamed_addr constant [23 x i8] c";unknown;unknown;0;0;;\00"
 // CHECK-DAG: [[DEF_LOC:@.+]] = private unnamed_addr global %struct.ident_t { i32 0, i32 2, i32 0, i32 0, i8* getelementptr inbounds ([23 x i8], [23 x i8]* [[STR]], i32 0, i32 0) }
 
 // CHECK-DAG: [[TT:%.+]] = type { i64, i8 }
 // CHECK-DAG: [[S1:%.+]] = type { double }
 // CHECK-DAG: [[ENTTY:%.+]] = type { i8*, i8*, i[[SZ:32|64]], i32, i32 }
-// CHECK-DAG: [[DEVTY:%.+]] = type { i8*, i8*, [[ENTTY]]*, [[ENTTY]]* }
-// CHECK-DAG: [[DSCTY:%.+]] = type { i32, [[DEVTY]]*, [[ENTTY]]*, [[ENTTY]]* }
 
 // TCHECK: [[ENTTY:%.+]] = type { i8*, i8*, i{{32|64}}, i32, i32 }
 
-// CHECK-DAG: $[[REGFN:\.omp_offloading\..+]] = comdat
-
 // We have 8 target regions, but only 6 that actually will generate offloading
 // code and have mapped arguments, and only 4 have all-constant map sizes.
 
 // CHECK-DAG: [[SIZET:@.+]] = private unnamed_addr constant [3 x i64] [i64 2, i64 4, i64 4]
 // CHECK-DAG: [[MAPT:@.+]] = private unnamed_addr constant [3 x i64] [i64 288, i64 800, i64 800]
 // CHECK-DAG: [[SIZET2:@.+]] = private unnamed_addr constant [1 x i64] [i64 2]
 // CHECK-DAG: [[MAPT2:@.+]] = private unnamed_addr constant [1 x i64] [i64 800]
 // CHECK-DAG: [[SIZET3:@.+]] = private unnamed_addr constant [2 x i64] [i64 4, i64 2]

 // TCHECK: @{{.+}} = weak constant [[ENTTY]]
 // TCHECK: @{{.+}} = weak constant [[ENTTY]]
 // TCHECK: @{{.+}} = weak constant [[ENTTY]]
 // TCHECK: @{{.+}} = weak constant [[ENTTY]]
 // TCHECK: @{{.+}} = weak constant [[ENTTY]]
 // TCHECK: @{{.+}} = weak constant [[ENTTY]]
 // TCHECK-NOT: @{{.+}} = weak constant [[ENTTY]]
 
-// Check if offloading descriptor is created.
-// CHECK: [[ENTBEGIN:@.+]] = external constant [[ENTTY]]
-// CHECK: [[ENTEND:@.+]] = external constant [[ENTTY]]
-// CHECK: [[DEVBEGIN:@.+]] = extern_weak constant i8
-// CHECK: [[DEVEND:@.+]] = extern_weak constant i8
-// CHECK: [[IMAGES:@.+]] = internal unnamed_addr constant [1 x [[DEVTY]]] [{{.+}} { i8* [[DEVBEGIN]], i8* [[DEVEND]], [[ENTTY]]* [[ENTBEGIN]], [[ENTTY]]* [[ENTEND]] }], comdat($[[REGFN]])
-// CHECK: [[DESC:@.+]] = internal constant [[DSCTY]] { i32 1, [[DEVTY]]* getelementptr inbounds ([1 x [[DEVTY]]], [1 x [[DEVTY]]]* [[IMAGES]], i32 0, i32 0), [[ENTTY]]* [[ENTBEGIN]], [[ENTTY]]* [[ENTEND]] }, comdat($[[REGFN]])
-
 // Check target registration is registered as a Ctor.
-// CHECK: appending global [2 x { i32, void ()*, i8* }] [{ i32, void ()*, i8* } { i32 0, void ()* @.omp_offloading.requires_reg, i8* null }, { i32, void ()*, i8* } { i32 0, void ()* @[[REGFN]], i8* bitcast (void ()* @[[REGFN]] to i8*) }]
-
+// CHECK: appending global [1 x { i32, void ()*, i8* }] [{ i32, void ()*, i8* } { i32 0, void ()* @.omp_offloading.requires_reg, i8* null }]
 
 template<typename tx, typename ty>
 struct TT{
   tx X;
   ty Y;
 };
 
 int global;

clang/test/OpenMP/target_teams_codegen_registration.cpp

 // CHECK-DAG: [[SA:%.+]] = type { [4 x i32] }
 // CHECK-DAG: [[SB:%.+]] = type { [8 x i32] }
 // CHECK-DAG: [[SC:%.+]] = type { [16 x i32] }
 // CHECK-DAG: [[SD:%.+]] = type { [32 x i32] }
 // CHECK-DAG: [[SE:%.+]] = type { [64 x i32] }
 // CHECK-DAG: [[ST1:%.+]] = type { [228 x i32] }
 // CHECK-DAG: [[ST2:%.+]] = type { [1128 x i32] }
 // CHECK-DAG: [[ENTTY:%.+]] = type { i8*, i8*, i[[SZ:32|64]], i32, i32 }
-// CHECK-DAG: [[DEVTY:%.+]] = type { i8*, i8*, [[ENTTY]]*, [[ENTTY]]* }
-// CHECK-DAG: [[DSCTY:%.+]] = type { i32, [[DEVTY]]*, [[ENTTY]]*, [[ENTTY]]* }
 
 // TCHECK:    [[ENTTY:%.+]] = type { i8*, i8*, i[[SZ:32|64]], i32, i32 }
 
-// CHECK-DAG: $[[REGFN:\.omp_offloading\..+]] = comdat
-
 // CHECK-DAG: [[A1:@.+]] = internal global [[SA]]
 // CHECK-DAG: [[A2:@.+]] = global [[SA]]
 // CHECK-DAG: [[B1:@.+]] = global [[SB]]
 // CHECK-DAG: [[B2:@.+]] = global [[SB]]
 // CHECK-DAG: [[C1:@.+]] = internal global [[SC]]
 // CHECK-DAG: [[D1:@.+]] = global [[SD]]
 // CHECK-DAG: [[E1:@.+]] = global [[SE]]
 // CHECK-DAG: [[T1:@.+]] = global [[ST1]]

 // TCHECK-DAG: [[ENTRY9:@.+]] = weak constant [[ENTTY]] { i8* bitcast (void (i[[SZ]])* @{{.*}} to i8*), i8* getelementptr inbounds ([{{.*}} x i8], [{{.*}} x i8]* [[NAMEPTR9]], i32 0, i32 0), i[[SZ]] 0, i32 0, i32 0 }, section ".omp_offloading.entries", align 1
 // TCHECK-DAG: [[NAMEPTR10:@.+]] = internal unnamed_addr constant [{{.*}} x i8] c"[[NAME10:.+]]\00"
 // TCHECK-DAG: [[ENTRY10:@.+]] = weak constant [[ENTTY]] { i8* bitcast (void (i[[SZ]])* @{{.*}} to i8*), i8* getelementptr inbounds ([{{.*}} x i8], [{{.*}} x i8]* [[NAMEPTR10]], i32 0, i32 0), i[[SZ]] 0, i32 0, i32 0 }, section ".omp_offloading.entries", align 1
 // TCHECK-DAG: [[NAMEPTR11:@.+]] = internal unnamed_addr constant [{{.*}} x i8] c"[[NAME11:.+]]\00"
 // TCHECK-DAG: [[ENTRY11:@.+]] = weak constant [[ENTTY]] { i8* bitcast (void (i[[SZ]])* @{{.*}} to i8*), i8* getelementptr inbounds ([{{.*}} x i8], [{{.*}} x i8]* [[NAMEPTR11]], i32 0, i32 0), i[[SZ]] 0, i32 0, i32 0 }, section ".omp_offloading.entries", align 1
 // TCHECK-DAG: [[NAMEPTR12:@.+]] = internal unnamed_addr constant [{{.*}} x i8] c"[[NAME12:.+]]\00"
 // TCHECK-DAG: [[ENTRY12:@.+]] = weak constant [[ENTTY]] { i8* bitcast (void (i[[SZ]])* @{{.*}} to i8*), i8* getelementptr inbounds ([{{.*}} x i8], [{{.*}} x i8]* [[NAMEPTR12]], i32 0, i32 0), i[[SZ]] 0, i32 0, i32 0 }, section ".omp_offloading.entries", align 1
 
-// CHECK: [[ENTBEGIN:@.+]] = external constant [[ENTTY]]
-// CHECK: [[ENTEND:@.+]] = external constant [[ENTTY]]
-// CHECK: [[DEVBEGIN:@.+]] = extern_weak constant i8
-// CHECK: [[DEVEND:@.+]] = extern_weak constant i8
-// CHECK: [[IMAGES:@.+]] = internal unnamed_addr constant [1 x [[DEVTY]]] [{{.+}} { i8* [[DEVBEGIN]], i8* [[DEVEND]], [[ENTTY]]* [[ENTBEGIN]], [[ENTTY]]* [[ENTEND]] }], comdat($[[REGFN]])
-// CHECK: [[DESC:@.+]] = internal constant [[DSCTY]] { i32 1, [[DEVTY]]* getelementptr inbounds ([1 x [[DEVTY]]], [1 x [[DEVTY]]]* [[IMAGES]], i32 0, i32 0), [[ENTTY]]* [[ENTBEGIN]], [[ENTTY]]* [[ENTEND]] }, comdat($[[REGFN]])
-
 // We have 4 initializers, one for the 500 priority, another one for 501, or more for the default priority, and the last one for the offloading registration function.
-// CHECK: @llvm.global_ctors = appending global [5 x { i32, void ()*, i8* }] [
+// CHECK: @llvm.global_ctors = appending global [4 x { i32, void ()*, i8* }] [
 // CHECK-SAME: { i32, void ()*, i8* } { i32 500, void ()* [[P500:@[^,]+]], i8* null },
 // CHECK-SAME: { i32, void ()*, i8* } { i32 501, void ()* [[P501:@[^,]+]], i8* null },
 // CHECK-SAME: { i32, void ()*, i8* } { i32 65535, void ()* [[PMAX:@[^,]+]], i8* null },
-// CHECK-SAME: { i32, void ()*, i8* } { i32 0, void ()* @[[REGFN]], i8* bitcast (void ()* @[[REGFN]] to i8*) }]
 
 // CHECK-NTARGET: @llvm.global_ctors = appending global [3   x { i32, void ()*, i8* }] [
 
 extern int *R;
 
 struct SA {
   int arr[4];
   void foo() {

 //TCHECK-DAG: define weak void @[[NAME7]](
 //TCHECK-DAG: define weak void @[[NAME8]](
 //TCHECK-DAG: define weak void @[[NAME9]](
 //TCHECK-DAG: define weak void @[[NAME10]](
 //TCHECK-DAG: define weak void @[[NAME11]](
 //TCHECK-DAG: define weak void @[[NAME12]](
 
 // CHECK-NTARGET-NOT: __tgt_target
-// CHECK-NTARGET-NOT: __tgt_register_lib
-// CHECK-NTARGET-NOT: __tgt_unregister_lib
 
 // TCHECK-NOT: __tgt_target
-// TCHECK-NOT: __tgt_register_lib
-// TCHECK-NOT: __tgt_unregister_lib
 
 // We have 2 initializers with priority 500
 //CHECK: define internal void [[P500]](
 //CHECK:     call void @{{.+}}()
 //CHECK:     call void @{{.+}}()
 //CHECK-NOT: call void @{{.+}}()
 //CHECK:     ret void
 

 //CHECK:     call void @{{.+}}()
 //CHECK:     call void @{{.+}}()
 //CHECK:     call void @{{.+}}()
 //CHECK:     call void @{{.+}}()
 //CHECK:     call void @{{.+}}()
 //CHECK-NOT: call void @{{.+}}()
 //CHECK:     ret void
 
-// Check registration and unregistration
-
-//CHECK:     define internal void @.omp_offloading.requires_reg()
-//CHECK:     call void @__tgt_register_requires(i64 1)
-//CHECK:     ret void
-
-//CHECK:     define internal void @[[UNREGFN:.+]](i8*)
-//CHECK-SAME: comdat($[[REGFN]]) {
-//CHECK:     call i32 @__tgt_unregister_lib([[DSCTY]]* [[DESC]])
-//CHECK:     ret void
-//CHECK:     declare i32 @__tgt_unregister_lib([[DSCTY]]*)
-
-//CHECK:     define linkonce hidden void @[[REGFN]]()
-//CHECK-SAME: comdat {
-//CHECK:     call i32 @__tgt_register_lib([[DSCTY]]* [[DESC]])
-//CHECK:     call i32 @__cxa_atexit(void (i8*)* @[[UNREGFN]], i8* bitcast ([[DSCTY]]* [[DESC]] to i8*),
-//CHECK:     ret void
-//CHECK:     declare i32 @__tgt_register_lib([[DSCTY]]*)
-
 static __attribute__((init_priority(500))) SA a1;
 SA a2;
 SB __attribute__((init_priority(500))) b1;
 SB __attribute__((init_priority(501))) b2;
 static SC c1;
 SD d1;
 SE e1;
 ST<100> t1;
int bar(int a){
   #pragma omp target teams
   ++r;
 
   return r + *R;
 }
 
 // Check metadata is properly generated:
 // CHECK:     !omp_offload.info = !{!{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}}
-// CHECK-DAG: = !{i32 0, i32 [[DEVID:-?[0-9]+]], i32 [[FILEID:-?[0-9]+]], !"_ZN2SB3fooEv", i32 216, i32 {{[0-9]+}}}
-// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2SDD1Ev", i32 266, i32 {{[0-9]+}}}
-// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2SEC1Ev", i32 282, i32 {{[0-9]+}}}
-// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2SED1Ev", i32 288, i32 {{[0-9]+}}}
-// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi1000EE3fooEv", i32 299, i32 {{[0-9]+}}}
-// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi100EEC1Ev", i32 305, i32 {{[0-9]+}}}
-// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_Z3bari", i32 431, i32 {{[0-9]+}}}
-// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi100EED1Ev", i32 311, i32 {{[0-9]+}}}
-// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi1000EEC1Ev", i32 305, i32 {{[0-9]+}}}
-// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi1000EED1Ev", i32 311, i32 {{[0-9]+}}}
-// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi100EE3fooEv", i32 299, i32 {{[0-9]+}}}
-// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2SCC1Ev", i32 241, i32 {{[0-9]+}}}
+// CHECK-DAG: = !{i32 0, i32 [[DEVID:-?[0-9]+]], i32 [[FILEID:-?[0-9]+]], !"_ZN2SB3fooEv", i32 204, i32 {{[0-9]+}}}
+// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2SDD1Ev", i32 254, i32 {{[0-9]+}}}
+// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2SEC1Ev", i32 270, i32 {{[0-9]+}}}
+// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2SED1Ev", i32 276, i32 {{[0-9]+}}}
+// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi1000EE3fooEv", i32 287, i32 {{[0-9]+}}}
+// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi100EEC1Ev", i32 293, i32 {{[0-9]+}}}
+// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_Z3bari", i32 396, i32 {{[0-9]+}}}
+// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi100EED1Ev", i32 299, i32 {{[0-9]+}}}
+// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi1000EEC1Ev", i32 293, i32 {{[0-9]+}}}
+// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi1000EED1Ev", i32 299, i32 {{[0-9]+}}}
+// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi100EE3fooEv", i32 287, i32 {{[0-9]+}}}
+// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2SCC1Ev", i32 229, i32 {{[0-9]+}}}
 
 // TCHECK:     !omp_offload.info = !{!{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}}
-// TCHECK-DAG: = !{i32 0, i32 [[DEVID:-?[0-9]+]], i32 [[FILEID:-?[0-9]+]], !"_ZN2SB3fooEv", i32 216, i32 {{[0-9]+}}}
-// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2SDD1Ev", i32 266, i32 {{[0-9]+}}}
-// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2SEC1Ev", i32 282, i32 {{[0-9]+}}}
-// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2SED1Ev", i32 288, i32 {{[0-9]+}}}
-// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi1000EE3fooEv", i32 299, i32 {{[0-9]+}}}
-// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi100EEC1Ev", i32 305, i32 {{[0-9]+}}}
-// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_Z3bari", i32 431, i32 {{[0-9]+}}}
-// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi100EED1Ev", i32 311, i32 {{[0-9]+}}}
-// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi1000EEC1Ev", i32 305, i32 {{[0-9]+}}}
-// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi1000EED1Ev", i32 311, i32 {{[0-9]+}}}
-// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi100EE3fooEv", i32 299, i32 {{[0-9]+}}}
-// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2SCC1Ev", i32 241, i32 {{[0-9]+}}}
+// TCHECK-DAG: = !{i32 0, i32 [[DEVID:-?[0-9]+]], i32 [[FILEID:-?[0-9]+]], !"_ZN2SB3fooEv", i32 204, i32 {{[0-9]+}}}
+// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2SDD1Ev", i32 254, i32 {{[0-9]+}}}
+// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2SEC1Ev", i32 270, i32 {{[0-9]+}}}
+// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2SED1Ev", i32 276, i32 {{[0-9]+}}}
+// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi1000EE3fooEv", i32 287, i32 {{[0-9]+}}}
+// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi100EEC1Ev", i32 293, i32 {{[0-9]+}}}
+// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_Z3bari", i32 396, i32 {{[0-9]+}}}
+// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi100EED1Ev", i32 299, i32 {{[0-9]+}}}
+// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi1000EEC1Ev", i32 293, i32 {{[0-9]+}}}
+// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi1000EED1Ev", i32 299, i32 {{[0-9]+}}}
+// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi100EE3fooEv", i32 287, i32 {{[0-9]+}}}
+// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2SCC1Ev", i32 229, i32 {{[0-9]+}}}
 
 #endif

clang/test/OpenMP/target_teams_depend_codegen.cpp

 // SIMD-ONLY1-NOT: {{__kmpc|__tgt}}
 
 // expected-no-diagnostics
 #ifndef HEADER
 #define HEADER
 
 // CHECK-DAG: [[TT:%.+]] = type { i64, i8 }
 // CHECK-DAG: [[ENTTY:%.+]] = type { i8*, i8*, i[[SZ:32|64]], i32, i32 }
-// CHECK-DAG: [[DEVTY:%.+]] = type { i8*, i8*, [[ENTTY]]*, [[ENTTY]]* }
-// CHECK-DAG: [[DSCTY:%.+]] = type { i32, [[DEVTY]]*, [[ENTTY]]*, [[ENTTY]]* }
 
 // TCHECK: [[ENTTY:%.+]] = type { i8*, i8*, i{{32|64}}, i32, i32 }
 
-// CHECK-DAG: $[[REGFN:\.omp_offloading\..+]] = comdat
-
 // CHECK-DAG: [[SIZET:@.+]] = private unnamed_addr constant [2 x i64] [i64 0, i64 4]
 // CHECK-DAG: [[MAPT:@.+]] = private unnamed_addr constant [2 x i64] [i64 544, i64 800]
 // CHECK-DAG: @{{.*}} = weak constant i8 0
 
 // TCHECK: @{{.+}} = weak constant [[ENTTY]]
 // TCHECK: @{{.+}} = {{.*}}constant [[ENTTY]]
 // TCHECK-NOT: @{{.+}} = weak constant [[ENTTY]]
 
-// Check if offloading descriptor is created.
-// CHECK: [[ENTBEGIN:@.+]] = external constant [[ENTTY]]
-// CHECK: [[ENTEND:@.+]] = external constant [[ENTTY]]
-// CHECK: [[DEVBEGIN:@.+]] = extern_weak constant i8
-// CHECK: [[DEVEND:@.+]] = extern_weak constant i8
-// CHECK: [[IMAGES:@.+]] = internal unnamed_addr constant [1 x [[DEVTY]]] [{{.+}} { i8* [[DEVBEGIN]], i8* [[DEVEND]], [[ENTTY]]* [[ENTBEGIN]], [[ENTTY]]* [[ENTEND]] }], comdat($[[REGFN]])
-// CHECK: [[DESC:@.+]] = internal constant [[DSCTY]] { i32 1, [[DEVTY]]* getelementptr inbounds ([1 x [[DEVTY]]], [1 x [[DEVTY]]]* [[IMAGES]], i32 0, i32 0), [[ENTTY]]* [[ENTBEGIN]], [[ENTTY]]* [[ENTEND]] }, comdat($[[REGFN]])
-
 // Check target registration is registered as a Ctor.
-// CHECK: appending global [2 x { i32, void ()*, i8* }] [{ i32, void ()*, i8* } { i32 0, void ()* @.omp_offloading.requires_reg, i8* null }, { i32, void ()*, i8* } { i32 0, void ()* @[[REGFN]], i8* bitcast (void ()* @[[REGFN]] to i8*) }]
-
+// CHECK: appending global [1 x { i32, void ()*, i8* }] [{ i32, void ()*, i8* } { i32 0, void ()* @.omp_offloading.requires_reg, i8* null }]
 
 template<typename tx, typename ty>
 struct TT{
   tx X;
   ty Y;
 };
 
 int global;

clang/test/OpenMP/target_teams_distribute_codegen.cpp

 
 // CHECK-DAG: %struct.ident_t = type { i32, i32, i32, i32, i8* }
 // CHECK-DAG: [[STR:@.+]] = private unnamed_addr constant [23 x i8] c";unknown;unknown;0;0;;\00"
 // CHECK-DAG: [[DEF_LOC:@.+]] = private unnamed_addr global %struct.ident_t { i32 0, i32 2, i32 0, i32 0, i8* getelementptr inbounds ([23 x i8], [23 x i8]* [[STR]], i32 0, i32 0) }
 
 // CHECK-DAG: [[TT:%.+]] = type { i64, i8 }
 // CHECK-DAG: [[S1:%.+]] = type { double }
 // CHECK-DAG: [[ENTTY:%.+]] = type { i8*, i8*, i[[SZ:32|64]], i32, i32 }
-// CHECK-DAG: [[DEVTY:%.+]] = type { i8*, i8*, [[ENTTY]]*, [[ENTTY]]* }
-// CHECK-DAG: [[DSCTY:%.+]] = type { i32, [[DEVTY]]*, [[ENTTY]]*, [[ENTTY]]* }
 
 // TCHECK: [[ENTTY:%.+]] = type { i8*, i8*, i{{32|64}}, i32, i32 }
 
-// CHECK-DAG: $[[REGFN:\.omp_offloading\..+]] = comdat
-
 // We have 8 target regions, but only 7 that actually will generate offloading
 // code, only 6 will have mapped arguments, and only 4 have all-constant map
 // sizes.
 
 // CHECK-DAG: [[SIZET:@.+]] = private unnamed_addr constant [3 x i64] [i64 2, i64 4, i64 4]
 // CHECK-DAG: [[MAPT:@.+]] = private unnamed_addr constant [3 x i64] [i64 288, i64 800, i64 800]
 // CHECK-DAG: [[SIZET2:@.+]] = private unnamed_addr constant [1 x i64] [i64 2]
 // CHECK-DAG: [[MAPT2:@.+]] = private unnamed_addr constant [1 x i64] [i64 800]

 // TCHECK: @{{.+}} = weak constant [[ENTTY]]
 // TCHECK: @{{.+}} = weak constant [[ENTTY]]
 // TCHECK: @{{.+}} = weak constant [[ENTTY]]
 // TCHECK: @{{.+}} = weak constant [[ENTTY]]
 // TCHECK: @{{.+}} = weak constant [[ENTTY]]
 // TCHECK: @{{.+}} = weak constant [[ENTTY]]
 // TCHECK-NOT: @{{.+}} = weak constant [[ENTTY]]
 
-// Check if offloading descriptor is created.
-// CHECK: [[ENTBEGIN:@.+]] = external constant [[ENTTY]]
-// CHECK: [[ENTEND:@.+]] = external constant [[ENTTY]]
-// CHECK: [[DEVBEGIN:@.+]] = extern_weak constant i8
-// CHECK: [[DEVEND:@.+]] = extern_weak constant i8
-// CHECK: [[IMAGES:@.+]] = internal unnamed_addr constant [1 x [[DEVTY]]] [{{.+}} { i8* [[DEVBEGIN]], i8* [[DEVEND]], [[ENTTY]]* [[ENTBEGIN]], [[ENTTY]]* [[ENTEND]] }], comdat($[[REGFN]])
-// CHECK: [[DESC:@.+]] = internal constant [[DSCTY]] { i32 1, [[DEVTY]]* getelementptr inbounds ([1 x [[DEVTY]]], [1 x [[DEVTY]]]* [[IMAGES]], i32 0, i32 0), [[ENTTY]]* [[ENTBEGIN]], [[ENTTY]]* [[ENTEND]] }, comdat($[[REGFN]])
-
 // Check target registration is registered as a Ctor.
-// CHECK: appending global [2 x { i32, void ()*, i8* }] [{ i32, void ()*, i8* } { i32 0, void ()* @.omp_offloading.requires_reg, i8* null }, { i32, void ()*, i8* } { i32 0, void ()* @[[REGFN]], i8* bitcast (void ()* @[[REGFN]] to i8*) }]
-
+// CHECK: appending global [1 x { i32, void ()*, i8* }] [{ i32, void ()*, i8* } { i32 0, void ()* @.omp_offloading.requires_reg, i8* null }]
 
 template<typename tx, typename ty>
 struct TT{
   tx X;
   ty Y;
 };
 
 int global;

clang/test/OpenMP/target_teams_distribute_codegen_registration.cpp

 // CHECK-DAG: [[SA:%.+]] = type { [4 x i32] }
 // CHECK-DAG: [[SB:%.+]] = type { [8 x i32] }
 // CHECK-DAG: [[SC:%.+]] = type { [16 x i32] }
 // CHECK-DAG: [[SD:%.+]] = type { [32 x i32] }
 // CHECK-DAG: [[SE:%.+]] = type { [64 x i32] }
 // CHECK-DAG: [[ST1:%.+]] = type { [228 x i32] }
 // CHECK-DAG: [[ST2:%.+]] = type { [1128 x i32] }
 // CHECK-DAG: [[ENTTY:%.+]] = type { i8*, i8*, i[[SZ:32|64]], i32, i32 }
-// CHECK-DAG: [[DEVTY:%.+]] = type { i8*, i8*, [[ENTTY]]*, [[ENTTY]]* }
-// CHECK-DAG: [[DSCTY:%.+]] = type { i32, [[DEVTY]]*, [[ENTTY]]*, [[ENTTY]]* }
 
 // TCHECK:    [[ENTTY:%.+]] = type { i8*, i8*, i[[SZ:32|64]], i32, i32 }
 
-// CHECK-DAG: $[[REGFN:\.omp_offloading\..+]] = comdat
-
 // CHECK-DAG: [[A1:@.+]] = internal global [[SA]]
 // CHECK-DAG: [[A2:@.+]] = global [[SA]]
 // CHECK-DAG: [[B1:@.+]] = global [[SB]]
 // CHECK-DAG: [[B2:@.+]] = global [[SB]]
 // CHECK-DAG: [[C1:@.+]] = internal global [[SC]]
 // CHECK-DAG: [[D1:@.+]] = global [[SD]]
 // CHECK-DAG: [[E1:@.+]] = global [[SE]]
 // CHECK-DAG: [[T1:@.+]] = global [[ST1]]

 // TCHECK-DAG: [[ENTRY9:@.+]] = weak constant [[ENTTY]] { i8* bitcast (void (i[[SZ]])* @{{.*}} to i8*), i8* getelementptr inbounds ([{{.*}} x i8], [{{.*}} x i8]* [[NAMEPTR9]], i32 0, i32 0), i[[SZ]] 0, i32 0, i32 0 }, section ".omp_offloading.entries", align 1
 // TCHECK-DAG: [[NAMEPTR10:@.+]] = internal unnamed_addr constant [{{.*}} x i8] c"[[NAME10:.+]]\00"
 // TCHECK-DAG: [[ENTRY10:@.+]] = weak constant [[ENTTY]] { i8* bitcast (void (i[[SZ]])* @{{.*}} to i8*), i8* getelementptr inbounds ([{{.*}} x i8], [{{.*}} x i8]* [[NAMEPTR10]], i32 0, i32 0), i[[SZ]] 0, i32 0, i32 0 }, section ".omp_offloading.entries", align 1
 // TCHECK-DAG: [[NAMEPTR11:@.+]] = internal unnamed_addr constant [{{.*}} x i8] c"[[NAME11:.+]]\00"
 // TCHECK-DAG: [[ENTRY11:@.+]] = weak constant [[ENTTY]] { i8* bitcast (void (i[[SZ]])* @{{.*}} to i8*), i8* getelementptr inbounds ([{{.*}} x i8], [{{.*}} x i8]* [[NAMEPTR11]], i32 0, i32 0), i[[SZ]] 0, i32 0, i32 0 }, section ".omp_offloading.entries", align 1
 // TCHECK-DAG: [[NAMEPTR12:@.+]] = internal unnamed_addr constant [{{.*}} x i8] c"[[NAME12:.+]]\00"
 // TCHECK-DAG: [[ENTRY12:@.+]] = weak constant [[ENTTY]] { i8* bitcast (void (i[[SZ]])* @{{.*}} to i8*), i8* getelementptr inbounds ([{{.*}} x i8], [{{.*}} x i8]* [[NAMEPTR12]], i32 0, i32 0), i[[SZ]] 0, i32 0, i32 0 }, section ".omp_offloading.entries", align 1
 
-// CHECK: [[ENTBEGIN:@.+]] = external constant [[ENTTY]]
-// CHECK: [[ENTEND:@.+]] = external constant [[ENTTY]]
-// CHECK: [[DEVBEGIN:@.+]] = extern_weak constant i8
-// CHECK: [[DEVEND:@.+]] = extern_weak constant i8
-// CHECK: [[IMAGES:@.+]] = internal unnamed_addr constant [1 x [[DEVTY]]] [{{.+}} { i8* [[DEVBEGIN]], i8* [[DEVEND]], [[ENTTY]]* [[ENTBEGIN]], [[ENTTY]]* [[ENTEND]] }], comdat($[[REGFN]])
-// CHECK: [[DESC:@.+]] = internal constant [[DSCTY]] { i32 1, [[DEVTY]]* getelementptr inbounds ([1 x [[DEVTY]]], [1 x [[DEVTY]]]* [[IMAGES]], i32 0, i32 0), [[ENTTY]]* [[ENTBEGIN]], [[ENTTY]]* [[ENTEND]] }, comdat($[[REGFN]])
-
 // We have 4 initializers, one for the 500 priority, another one for 501, or more for the default priority, and the last one for the offloading registration function.
-// CHECK: @llvm.global_ctors = appending global [5 x { i32, void ()*, i8* }] [
+// CHECK: @llvm.global_ctors = appending global [4 x { i32, void ()*, i8* }] [
 // CHECK-SAME: { i32, void ()*, i8* } { i32 500, void ()* [[P500:@[^,]+]], i8* null },
 // CHECK-SAME: { i32, void ()*, i8* } { i32 501, void ()* [[P501:@[^,]+]], i8* null },
 // CHECK-SAME: { i32, void ()*, i8* } { i32 65535, void ()* [[PMAX:@[^,]+]], i8* null },
-// CHECK-SAME: { i32, void ()*, i8* } { i32 0, void ()* @[[REGFN]], i8* bitcast (void ()* @[[REGFN]] to i8*) }]
 
 // CHECK-NTARGET: @llvm.global_ctors = appending global [3   x { i32, void ()*, i8* }] [
 
 extern int *R;
 
 struct SA {
   int arr[4];
   void foo() {

 //TCHECK-DAG: define weak void @[[NAME7]](
 //TCHECK-DAG: define weak void @[[NAME8]](
 //TCHECK-DAG: define weak void @[[NAME9]](
 //TCHECK-DAG: define weak void @[[NAME10]](
 //TCHECK-DAG: define weak void @[[NAME11]](
 //TCHECK-DAG: define weak void @[[NAME12]](
 
 // CHECK-NTARGET-NOT: __tgt_target
-// CHECK-NTARGET-NOT: __tgt_register_lib
-// CHECK-NTARGET-NOT: __tgt_unregister_lib
 
 // TCHECK-NOT: __tgt_target
-// TCHECK-NOT: __tgt_register_lib
-// TCHECK-NOT: __tgt_unregister_lib
 
 // We have 2 initializers with priority 500
 //CHECK: define internal void [[P500]](
 //CHECK:     call void @{{.+}}()
 //CHECK:     call void @{{.+}}()
 //CHECK-NOT: call void @{{.+}}()
 //CHECK:     ret void
 

 //CHECK:     call void @{{.+}}()
 //CHECK:     call void @{{.+}}()
 //CHECK:     call void @{{.+}}()
 //CHECK:     call void @{{.+}}()
 //CHECK:     call void @{{.+}}()
 //CHECK-NOT: call void @{{.+}}()
 //CHECK:     ret void
 
-// Check registration and unregistration
-
-//CHECK:     define internal void @.omp_offloading.requires_reg()
-//CHECK:     call void @__tgt_register_requires(i64 1)
-//CHECK:     ret void
-
-//CHECK:     define internal void @[[UNREGFN:.+]](i8*)
-//CHECK-SAME: comdat($[[REGFN]]) {
-//CHECK:     call i32 @__tgt_unregister_lib([[DSCTY]]* [[DESC]])
-//CHECK:     ret void
-//CHECK:     declare i32 @__tgt_unregister_lib([[DSCTY]]*)
-
-//CHECK:     define linkonce hidden void @[[REGFN]]()
-//CHECK-SAME: comdat {
-//CHECK:     call i32 @__tgt_register_lib([[DSCTY]]* [[DESC]])
-//CHECK:     call i32 @__cxa_atexit(void (i8*)* @[[UNREGFN]], i8* bitcast ([[DSCTY]]* [[DESC]] to i8*),
-//CHECK:     ret void
-//CHECK:     declare i32 @__tgt_register_lib([[DSCTY]]*)
-
 static __attribute__((init_priority(500))) SA a1;
 SA a2;
 SB __attribute__((init_priority(500))) b1;
 SB __attribute__((init_priority(501))) b2;
 static SC c1;
 SD d1;
 SE e1;
 ST<100> t1;
int bar(int a){
   for (int i = 0; i < 10; ++i)
     ++r;
 
   return r + *R;
 }
 
 // Check metadata is properly generated:
 // CHECK:     !omp_offload.info = !{!{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}}
-// CHECK-DAG: = !{i32 0, i32 [[DEVID:-?[0-9]+]], i32 [[FILEID:-?[0-9]+]], !"_ZN2SB3fooEv", i32 216, i32 {{[0-9]+}}}
-// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2SDD1Ev", i32 268, i32 {{[0-9]+}}}
-// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2SEC1Ev", i32 286, i32 {{[0-9]+}}}
-// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2SED1Ev", i32 293, i32 {{[0-9]+}}}
-// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi1000EE3fooEv", i32 305, i32 {{[0-9]+}}}
-// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi100EEC1Ev", i32 312, i32 {{[0-9]+}}}
-// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_Z3bari", i32 440, i32 {{[0-9]+}}}
-// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi100EED1Ev", i32 319, i32 {{[0-9]+}}}
-// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi1000EEC1Ev", i32 312, i32 {{[0-9]+}}}
-// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi1000EED1Ev", i32 319, i32 {{[0-9]+}}}
-// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi100EE3fooEv", i32 305, i32 {{[0-9]+}}}
-// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2SCC1Ev", i32 242, i32 {{[0-9]+}}}
+// CHECK-DAG: = !{i32 0, i32 [[DEVID:-?[0-9]+]], i32 [[FILEID:-?[0-9]+]], !"_ZN2SB3fooEv", i32 204, i32 {{[0-9]+}}}
+// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2SDD1Ev", i32 256, i32 {{[0-9]+}}}
+// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2SEC1Ev", i32 274, i32 {{[0-9]+}}}
+// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2SED1Ev", i32 281, i32 {{[0-9]+}}}
+// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi1000EE3fooEv", i32 293, i32 {{[0-9]+}}}
+// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi100EEC1Ev", i32 300, i32 {{[0-9]+}}}
+// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_Z3bari", i32 405, i32 {{[0-9]+}}}
+// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi100EED1Ev", i32 307, i32 {{[0-9]+}}}
+// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi1000EEC1Ev", i32 300, i32 {{[0-9]+}}}
+// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi1000EED1Ev", i32 307, i32 {{[0-9]+}}}
+// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi100EE3fooEv", i32 293, i32 {{[0-9]+}}}
+// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2SCC1Ev", i32 230, i32 {{[0-9]+}}}
 
 // TCHECK:     !omp_offload.info = !{!{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}}
-// TCHECK-DAG: = !{i32 0, i32 [[DEVID:-?[0-9]+]], i32 [[FILEID:-?[0-9]+]], !"_ZN2SB3fooEv", i32 216, i32 {{[0-9]+}}}
-// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2SDD1Ev", i32 268, i32 {{[0-9]+}}}
-// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2SEC1Ev", i32 286, i32 {{[0-9]+}}}
-// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2SED1Ev", i32 293, i32 {{[0-9]+}}}
-// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi1000EE3fooEv", i32 305, i32 {{[0-9]+}}}
-// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi100EEC1Ev", i32 312, i32 {{[0-9]+}}}
-// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_Z3bari", i32 440, i32 {{[0-9]+}}}
-// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi100EED1Ev", i32 319, i32 {{[0-9]+}}}
-// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi1000EEC1Ev", i32 312, i32 {{[0-9]+}}}
-// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi1000EED1Ev", i32 319, i32 {{[0-9]+}}}
-// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi100EE3fooEv", i32 305, i32 {{[0-9]+}}}
-// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2SCC1Ev", i32 242, i32 {{[0-9]+}}}
+// TCHECK-DAG: = !{i32 0, i32 [[DEVID:-?[0-9]+]], i32 [[FILEID:-?[0-9]+]], !"_ZN2SB3fooEv", i32 204, i32 {{[0-9]+}}}
+// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2SDD1Ev", i32 256, i32 {{[0-9]+}}}
+// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2SEC1Ev", i32 274, i32 {{[0-9]+}}}
+// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2SED1Ev", i32 281, i32 {{[0-9]+}}}
+// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi1000EE3fooEv", i32 293, i32 {{[0-9]+}}}
+// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi100EEC1Ev", i32 300, i32 {{[0-9]+}}}
+// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_Z3bari", i32 405, i32 {{[0-9]+}}}
+// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi100EED1Ev", i32 307, i32 {{[0-9]+}}}
+// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi1000EEC1Ev", i32 300, i32 {{[0-9]+}}}
+// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi1000EED1Ev", i32 307, i32 {{[0-9]+}}}
+// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi100EE3fooEv", i32 293, i32 {{[0-9]+}}}
+// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2SCC1Ev", i32 230, i32 {{[0-9]+}}}
 
 #endif

clang/test/OpenMP/target_teams_distribute_depend_codegen.cpp

 // SIMD-ONLY1-NOT: {{__kmpc|__tgt}}
 
 // expected-no-diagnostics
 #ifndef HEADER
 #define HEADER
 
 // CHECK-DAG: [[TT:%.+]] = type { i64, i8 }
 // CHECK-DAG: [[ENTTY:%.+]] = type { i8*, i8*, i[[SZ:32|64]], i32, i32 }
-// CHECK-DAG: [[DEVTY:%.+]] = type { i8*, i8*, [[ENTTY]]*, [[ENTTY]]* }
-// CHECK-DAG: [[DSCTY:%.+]] = type { i32, [[DEVTY]]*, [[ENTTY]]*, [[ENTTY]]* }
 
 // TCHECK: [[ENTTY:%.+]] = type { i8*, i8*, i{{32|64}}, i32, i32 }
 
-// CHECK-DAG: $[[REGFN:\.omp_offloading\..+]] = comdat
-
 // CHECK-DAG: [[SIZET:@.+]] = private unnamed_addr constant [2 x i64] [i64 0, i64 4]
 // CHECK-DAG: [[MAPT:@.+]] = private unnamed_addr constant [2 x i64] [i64 544, i64 800]
 // CHECK-DAG: @{{.*}} = weak constant i8 0
 
 // TCHECK: @{{.+}} = weak constant [[ENTTY]]
 // TCHECK: @{{.+}} = {{.*}}constant [[ENTTY]]
 // TCHECK-NOT: @{{.+}} = weak constant [[ENTTY]]
 
-// Check if offloading descriptor is created.
-// CHECK: [[ENTBEGIN:@.+]] = external constant [[ENTTY]]
-// CHECK: [[ENTEND:@.+]] = external constant [[ENTTY]]
-// CHECK: [[DEVBEGIN:@.+]] = extern_weak constant i8
-// CHECK: [[DEVEND:@.+]] = extern_weak constant i8
-// CHECK: [[IMAGES:@.+]] = internal unnamed_addr constant [1 x [[DEVTY]]] [{{.+}} { i8* [[DEVBEGIN]], i8* [[DEVEND]], [[ENTTY]]* [[ENTBEGIN]], [[ENTTY]]* [[ENTEND]] }], comdat($[[REGFN]])
-// CHECK: [[DESC:@.+]] = internal constant [[DSCTY]] { i32 1, [[DEVTY]]* getelementptr inbounds ([1 x [[DEVTY]]], [1 x [[DEVTY]]]* [[IMAGES]], i32 0, i32 0), [[ENTTY]]* [[ENTBEGIN]], [[ENTTY]]* [[ENTEND]] }, comdat($[[REGFN]])
-
 // Check target registration is registered as a Ctor.
-// CHECK: appending global [2 x { i32, void ()*, i8* }] [{ i32, void ()*, i8* } { i32 0, void ()* @.omp_offloading.requires_reg, i8* null }, { i32, void ()*, i8* } { i32 0, void ()* @[[REGFN]], i8* bitcast (void ()* @[[REGFN]] to i8*) }]
-
+// CHECK: appending global [1 x { i32, void ()*, i8* }] [{ i32, void ()*, i8* } { i32 0, void ()* @.omp_offloading.requires_reg, i8* null }]
 
 template<typename tx, typename ty>
 struct TT{
   tx X;
   ty Y;
 };
 
 int global;

clang/test/OpenMP/target_teams_distribute_parallel_for_depend_codegen.cpp

 // SIMD-ONLY1-NOT: {{__kmpc|__tgt}}
 
 // expected-no-diagnostics
 #ifndef HEADER
 #define HEADER
 
 // CHECK-DAG: [[TT:%.+]] = type { i64, i8 }
 // CHECK-DAG: [[ENTTY:%.+]] = type { i8*, i8*, i[[SZ:32|64]], i32, i32 }
-// CHECK-DAG: [[DEVTY:%.+]] = type { i8*, i8*, [[ENTTY]]*, [[ENTTY]]* }
-// CHECK-DAG: [[DSCTY:%.+]] = type { i32, [[DEVTY]]*, [[ENTTY]]*, [[ENTTY]]* }
 
 // TCHECK: [[ENTTY:%.+]] = type { i8*, i8*, i{{32|64}}, i32, i32 }
 
-// CHECK-DAG: $[[REGFN:\.omp_offloading\..+]] = comdat
-
 // CHECK-DAG: [[SIZET:@.+]] = private unnamed_addr constant [2 x i64] [i64 0, i64 4]
 // CHECK-DAG: [[MAPT:@.+]] = private unnamed_addr constant [2 x i64] [i64 544, i64 800]
 // CHECK-DAG: @{{.*}} = weak constant i8 0
 
 // TCHECK: @{{.+}} = weak constant [[ENTTY]]
 // TCHECK: @{{.+}} = {{.*}}constant [[ENTTY]]
 // TCHECK-NOT: @{{.+}} = weak constant [[ENTTY]]
 
-// Check if offloading descriptor is created.
-// CHECK: [[ENTBEGIN:@.+]] = external constant [[ENTTY]]
-// CHECK: [[ENTEND:@.+]] = external constant [[ENTTY]]
-// CHECK: [[DEVBEGIN:@.+]] = extern_weak constant i8
-// CHECK: [[DEVEND:@.+]] = extern_weak constant i8
-// CHECK: [[IMAGES:@.+]] = internal unnamed_addr constant [1 x [[DEVTY]]] [{{.+}} { i8* [[DEVBEGIN]], i8* [[DEVEND]], [[ENTTY]]* [[ENTBEGIN]], [[ENTTY]]* [[ENTEND]] }], comdat($[[REGFN]])
-// CHECK: [[DESC:@.+]] = internal constant [[DSCTY]] { i32 1, [[DEVTY]]* getelementptr inbounds ([1 x [[DEVTY]]], [1 x [[DEVTY]]]* [[IMAGES]], i32 0, i32 0), [[ENTTY]]* [[ENTBEGIN]], [[ENTTY]]* [[ENTEND]] }, comdat($[[REGFN]])
-
 // Check target registration is registered as a Ctor.
-// CHECK: appending global [2 x { i32, void ()*, i8* }] [{ i32, void ()*, i8* } { i32 0, void ()* @.omp_offloading.requires_reg, i8* null }, { i32, void ()*, i8* } { i32 0, void ()* @[[REGFN]], i8* bitcast (void ()* @[[REGFN]] to i8*) }]
-
+// CHECK: appending global [1 x { i32, void ()*, i8* }] [{ i32, void ()*, i8* } { i32 0, void ()* @.omp_offloading.requires_reg, i8* null }]
 
 template<typename tx, typename ty>
 struct TT{
   tx X;
   ty Y;
 };
 
 int global;

clang/test/OpenMP/target_teams_distribute_parallel_for_simd_codegen_registration.cpp

 // CHECK-DAG: [[SA:%.+]] = type { [4 x i32] }
 // CHECK-DAG: [[SB:%.+]] = type { [8 x i32] }
 // CHECK-DAG: [[SC:%.+]] = type { [16 x i32] }
 // CHECK-DAG: [[SD:%.+]] = type { [32 x i32] }
 // CHECK-DAG: [[SE:%.+]] = type { [64 x i32] }
 // CHECK-DAG: [[ST1:%.+]] = type { [228 x i32] }
 // CHECK-DAG: [[ST2:%.+]] = type { [1128 x i32] }
 // CHECK-DAG: [[ENTTY:%.+]] = type { i8*, i8*, i[[SZ:32|64]], i32, i32 }
-// CHECK-DAG: [[DEVTY:%.+]] = type { i8*, i8*, [[ENTTY]]*, [[ENTTY]]* }
-// CHECK-DAG: [[DSCTY:%.+]] = type { i32, [[DEVTY]]*, [[ENTTY]]*, [[ENTTY]]* }
 
 // TCHECK:    [[ENTTY:%.+]] = type { i8*, i8*, i[[SZ:32|64]], i32, i32 }
 
-// CHECK-DAG: $[[REGFN:\.omp_offloading\..+]] = comdat
-
 // CHECK-DAG: [[A1:@.+]] = internal global [[SA]]
 // CHECK-DAG: [[A2:@.+]] = global [[SA]]
 // CHECK-DAG: [[B1:@.+]] = global [[SB]]
 // CHECK-DAG: [[B2:@.+]] = global [[SB]]
 // CHECK-DAG: [[C1:@.+]] = internal global [[SC]]
 // CHECK-DAG: [[D1:@.+]] = global [[SD]]
 // CHECK-DAG: [[E1:@.+]] = global [[SE]]
 // CHECK-DAG: [[T1:@.+]] = global [[ST1]]

 // TCHECK-DAG: [[ENTRY9:@.+]] = weak constant [[ENTTY]] { i8* bitcast (void (i[[SZ]])* @{{.*}} to i8*), i8* getelementptr inbounds ([{{.*}} x i8], [{{.*}} x i8]* [[NAMEPTR9]], i32 0, i32 0), i[[SZ]] 0, i32 0, i32 0 }, section ".omp_offloading.entries", align 1
 // TCHECK-DAG: [[NAMEPTR10:@.+]] = internal unnamed_addr constant [{{.*}} x i8] c"[[NAME10:.+]]\00"
 // TCHECK-DAG: [[ENTRY10:@.+]] = weak constant [[ENTTY]] { i8* bitcast (void (i[[SZ]])* @{{.*}} to i8*), i8* getelementptr inbounds ([{{.*}} x i8], [{{.*}} x i8]* [[NAMEPTR10]], i32 0, i32 0), i[[SZ]] 0, i32 0, i32 0 }, section ".omp_offloading.entries", align 1
 // TCHECK-DAG: [[NAMEPTR11:@.+]] = internal unnamed_addr constant [{{.*}} x i8] c"[[NAME11:.+]]\00"
 // TCHECK-DAG: [[ENTRY11:@.+]] = weak constant [[ENTTY]] { i8* bitcast (void (i[[SZ]])* @{{.*}} to i8*), i8* getelementptr inbounds ([{{.*}} x i8], [{{.*}} x i8]* [[NAMEPTR11]], i32 0, i32 0), i[[SZ]] 0, i32 0, i32 0 }, section ".omp_offloading.entries", align 1
 // TCHECK-DAG: [[NAMEPTR12:@.+]] = internal unnamed_addr constant [{{.*}} x i8] c"[[NAME12:.+]]\00"
 // TCHECK-DAG: [[ENTRY12:@.+]] = weak constant [[ENTTY]] { i8* bitcast (void (i[[SZ]])* @{{.*}} to i8*), i8* getelementptr inbounds ([{{.*}} x i8], [{{.*}} x i8]* [[NAMEPTR12]], i32 0, i32 0), i[[SZ]] 0, i32 0, i32 0 }, section ".omp_offloading.entries", align 1
 
-// CHECK: [[ENTBEGIN:@.+]] = external constant [[ENTTY]]
-// CHECK: [[ENTEND:@.+]] = external constant [[ENTTY]]
-// CHECK: [[DEVBEGIN:@.+]] = extern_weak constant i8
-// CHECK: [[DEVEND:@.+]] = extern_weak constant i8
-// CHECK: [[IMAGES:@.+]] = internal unnamed_addr constant [1 x [[DEVTY]]] [{{.+}} { i8* [[DEVBEGIN]], i8* [[DEVEND]], [[ENTTY]]* [[ENTBEGIN]], [[ENTTY]]* [[ENTEND]] }], comdat($[[REGFN]])
-// CHECK: [[DESC:@.+]] = internal constant [[DSCTY]] { i32 1, [[DEVTY]]* getelementptr inbounds ([1 x [[DEVTY]]], [1 x [[DEVTY]]]* [[IMAGES]], i32 0, i32 0), [[ENTTY]]* [[ENTBEGIN]], [[ENTTY]]* [[ENTEND]] }, comdat($[[REGFN]])
-
 // We have 4 initializers, one for the 500 priority, another one for 501, or more for the default priority, and the last one for the offloading registration function.
-// CHECK: @llvm.global_ctors = appending global [5 x { i32, void ()*, i8* }] [
+// CHECK: @llvm.global_ctors = appending global [4 x { i32, void ()*, i8* }] [
 // CHECK-SAME: { i32, void ()*, i8* } { i32 500, void ()* [[P500:@[^,]+]], i8* null },
 // CHECK-SAME: { i32, void ()*, i8* } { i32 501, void ()* [[P501:@[^,]+]], i8* null },
 // CHECK-SAME: { i32, void ()*, i8* } { i32 65535, void ()* [[PMAX:@[^,]+]], i8* null },
-// CHECK-SAME: { i32, void ()*, i8* } { i32 0, void ()* @[[REGFN]], i8* bitcast (void ()* @[[REGFN]] to i8*) }]
 
 // CHECK-NTARGET: @llvm.global_ctors = appending global [3   x { i32, void ()*, i8* }] [
 
 extern int *R;
 
 struct SA {
   int arr[4];
   void foo() {

 //TCHECK-DAG: define weak void @[[NAME7]](
 //TCHECK-DAG: define weak void @[[NAME8]](
 //TCHECK-DAG: define weak void @[[NAME9]](
 //TCHECK-DAG: define weak void @[[NAME10]](
 //TCHECK-DAG: define weak void @[[NAME11]](
 //TCHECK-DAG: define weak void @[[NAME12]](
 
 // CHECK-NTARGET-NOT: __tgt_target
-// CHECK-NTARGET-NOT: __tgt_register_lib
-// CHECK-NTARGET-NOT: __tgt_unregister_lib
 
 // TCHECK-NOT: __tgt_target
-// TCHECK-NOT: __tgt_register_lib
-// TCHECK-NOT: __tgt_unregister_lib
 
 // We have 2 initializers with priority 500
 //CHECK: define internal void [[P500]](
 //CHECK:     call void @{{.+}}()
 //CHECK:     call void @{{.+}}()
 //CHECK-NOT: call void @{{.+}}()
 //CHECK:     ret void
 

 //CHECK:     call void @{{.+}}()
 //CHECK:     call void @{{.+}}()
 //CHECK:     call void @{{.+}}()
 //CHECK:     call void @{{.+}}()
 //CHECK:     call void @{{.+}}()
 //CHECK-NOT: call void @{{.+}}()
 //CHECK:     ret void
 
-// Check registration and unregistration
-
-//CHECK:     define internal void @.omp_offloading.requires_reg()
-//CHECK:     call void @__tgt_register_requires(i64 1)
-//CHECK:     ret void
-
-//CHECK:     define internal void @[[UNREGFN:.+]](i8*)
-//CHECK-SAME: comdat($[[REGFN]]) {
-//CHECK:     call i32 @__tgt_unregister_lib([[DSCTY]]* [[DESC]])
-//CHECK:     ret void
-//CHECK:     declare i32 @__tgt_unregister_lib([[DSCTY]]*)
-
-//CHECK:     define linkonce hidden void @[[REGFN]]()
-//CHECK-SAME: comdat {
-//CHECK:     call i32 @__tgt_register_lib([[DSCTY]]* [[DESC]])
-//CHECK:     call i32 @__cxa_atexit(void (i8*)* @[[UNREGFN]], i8* bitcast ([[DSCTY]]* [[DESC]] to i8*),
-//CHECK:     ret void
-//CHECK:     declare i32 @__tgt_register_lib([[DSCTY]]*)
-
 static __attribute__((init_priority(500))) SA a1;
 SA a2;
 SB __attribute__((init_priority(500))) b1;
 SB __attribute__((init_priority(501))) b2;
 static SC c1;
 SD d1;
 SE e1;
 ST<100> t1;
int bar(int a){
   for (int i = 0; i < 10; ++i)
     ++r;
 
   return r + *R;
 }
 
 // Check metadata is properly generated:
 // CHECK:     !omp_offload.info = !{!{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}}
-// CHECK-DAG: = !{i32 0, i32 [[DEVID:-?[0-9]+]], i32 [[FILEID:-?[0-9]+]], !"_ZN2SB3fooEv", i32 216, i32 {{[0-9]+}}}
-// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2SDD1Ev", i32 268, i32 {{[0-9]+}}}
-// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2SEC1Ev", i32 286, i32 {{[0-9]+}}}
-// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2SED1Ev", i32 293, i32 {{[0-9]+}}}
-// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi1000EE3fooEv", i32 305, i32 {{[0-9]+}}}
-// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi100EEC1Ev", i32 312, i32 {{[0-9]+}}}
-// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_Z3bari", i32 440, i32 {{[0-9]+}}}
-// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi100EED1Ev", i32 319, i32 {{[0-9]+}}}
-// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi1000EEC1Ev", i32 312, i32 {{[0-9]+}}}
-// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi1000EED1Ev", i32 319, i32 {{[0-9]+}}}
-// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi100EE3fooEv", i32 305, i32 {{[0-9]+}}}
-// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2SCC1Ev", i32 242, i32 {{[0-9]+}}}
+// CHECK-DAG: = !{i32 0, i32 [[DEVID:-?[0-9]+]], i32 [[FILEID:-?[0-9]+]], !"_ZN2SB3fooEv", i32 204, i32 {{[0-9]+}}}
+// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2SDD1Ev", i32 256, i32 {{[0-9]+}}}
+// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2SEC1Ev", i32 274, i32 {{[0-9]+}}}
+// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2SED1Ev", i32 281, i32 {{[0-9]+}}}
+// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi1000EE3fooEv", i32 293, i32 {{[0-9]+}}}
+// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi100EEC1Ev", i32 300, i32 {{[0-9]+}}}
+// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_Z3bari", i32 405, i32 {{[0-9]+}}}
+// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi100EED1Ev", i32 307, i32 {{[0-9]+}}}
+// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi1000EEC1Ev", i32 300, i32 {{[0-9]+}}}
+// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi1000EED1Ev", i32 307, i32 {{[0-9]+}}}
+// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi100EE3fooEv", i32 293, i32 {{[0-9]+}}}
+// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2SCC1Ev", i32 230, i32 {{[0-9]+}}}
 
 // TCHECK:     !omp_offload.info = !{!{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}}
-// TCHECK-DAG: = !{i32 0, i32 [[DEVID:-?[0-9]+]], i32 [[FILEID:-?[0-9]+]], !"_ZN2SB3fooEv", i32 216, i32 {{[0-9]+}}}
-// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2SDD1Ev", i32 268, i32 {{[0-9]+}}}
-// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2SEC1Ev", i32 286, i32 {{[0-9]+}}}
-// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2SED1Ev", i32 293, i32 {{[0-9]+}}}
-// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi1000EE3fooEv", i32 305, i32 {{[0-9]+}}}
-// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi100EEC1Ev", i32 312, i32 {{[0-9]+}}}
-// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_Z3bari", i32 440, i32 {{[0-9]+}}}
-// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi100EED1Ev", i32 319, i32 {{[0-9]+}}}
-// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi1000EEC1Ev", i32 312, i32 {{[0-9]+}}}
-// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi1000EED1Ev", i32 319, i32 {{[0-9]+}}}
-// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi100EE3fooEv", i32 305, i32 {{[0-9]+}}}
-// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2SCC1Ev", i32 242, i32 {{[0-9]+}}}
+// TCHECK-DAG: = !{i32 0, i32 [[DEVID:-?[0-9]+]], i32 [[FILEID:-?[0-9]+]], !"_ZN2SB3fooEv", i32 204, i32 {{[0-9]+}}}
+// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2SDD1Ev", i32 256, i32 {{[0-9]+}}}
+// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2SEC1Ev", i32 274, i32 {{[0-9]+}}}
+// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2SED1Ev", i32 281, i32 {{[0-9]+}}}
+// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi1000EE3fooEv", i32 293, i32 {{[0-9]+}}}
+// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi100EEC1Ev", i32 300, i32 {{[0-9]+}}}
+// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_Z3bari", i32 405, i32 {{[0-9]+}}}
+// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi100EED1Ev", i32 307, i32 {{[0-9]+}}}
+// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi1000EEC1Ev", i32 300, i32 {{[0-9]+}}}
+// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi1000EED1Ev", i32 307, i32 {{[0-9]+}}}
+// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi100EE3fooEv", i32 293, i32 {{[0-9]+}}}
+// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2SCC1Ev", i32 230, i32 {{[0-9]+}}}
 
 #endif

clang/test/OpenMP/target_teams_distribute_parallel_for_simd_depend_codegen.cpp

 // SIMD-ONLY1-NOT: {{__kmpc|__tgt}}
 
 // expected-no-diagnostics
 #ifndef HEADER
 #define HEADER
 
 // CHECK-DAG: [[TT:%.+]] = type { i64, i8 }
 // CHECK-DAG: [[ENTTY:%.+]] = type { i8*, i8*, i[[SZ:32|64]], i32, i32 }
-// CHECK-DAG: [[DEVTY:%.+]] = type { i8*, i8*, [[ENTTY]]*, [[ENTTY]]* }
-// CHECK-DAG: [[DSCTY:%.+]] = type { i32, [[DEVTY]]*, [[ENTTY]]*, [[ENTTY]]* }
 
 // TCHECK: [[ENTTY:%.+]] = type { i8*, i8*, i{{32|64}}, i32, i32 }
 
-// CHECK-DAG: $[[REGFN:\.omp_offloading\..+]] = comdat
-
 // CHECK-DAG: [[SIZET:@.+]] = private unnamed_addr constant [2 x i64] [i64 0, i64 4]
 // CHECK-DAG: [[MAPT:@.+]] = private unnamed_addr constant [2 x i64] [i64 544, i64 800]
 // CHECK-DAG: @{{.*}} = weak constant i8 0
 
 // TCHECK: @{{.+}} = weak constant [[ENTTY]]
 // TCHECK: @{{.+}} = {{.*}}constant [[ENTTY]]
 // TCHECK-NOT: @{{.+}} = weak constant [[ENTTY]]
 
-// Check if offloading descriptor is created.
-// CHECK: [[ENTBEGIN:@.+]] = external constant [[ENTTY]]
-// CHECK: [[ENTEND:@.+]] = external constant [[ENTTY]]
-// CHECK: [[DEVBEGIN:@.+]] = extern_weak constant i8
-// CHECK: [[DEVEND:@.+]] = extern_weak constant i8
-// CHECK: [[IMAGES:@.+]] = internal unnamed_addr constant [1 x [[DEVTY]]] [{{.+}} { i8* [[DEVBEGIN]], i8* [[DEVEND]], [[ENTTY]]* [[ENTBEGIN]], [[ENTTY]]* [[ENTEND]] }], comdat($[[REGFN]])
-// CHECK: [[DESC:@.+]] = internal constant [[DSCTY]] { i32 1, [[DEVTY]]* getelementptr inbounds ([1 x [[DEVTY]]], [1 x [[DEVTY]]]* [[IMAGES]], i32 0, i32 0), [[ENTTY]]* [[ENTBEGIN]], [[ENTTY]]* [[ENTEND]] }, comdat($[[REGFN]])
-
 // Check target registration is registered as a Ctor.
-// CHECK: appending global [2 x { i32, void ()*, i8* }] [{ i32, void ()*, i8* } { i32 0, void ()* @.omp_offloading.requires_reg, i8* null }, { i32, void ()*, i8* } { i32 0, void ()* @[[REGFN]], i8* bitcast (void ()* @[[REGFN]] to i8*) }]
-
+// CHECK: appending global [1 x { i32, void ()*, i8* }] [{ i32, void ()*, i8* } { i32 0, void ()* @.omp_offloading.requires_reg, i8* null }]
 
 template<typename tx, typename ty>
 struct TT{
   tx X;
   ty Y;
 };
 
 int global;

clang/test/OpenMP/target_teams_distribute_simd_codegen.cpp

 
 // CHECK-DAG: %struct.ident_t = type { i32, i32, i32, i32, i8* }
 // CHECK-DAG: [[STR:@.+]] = private unnamed_addr constant [23 x i8] c";unknown;unknown;0;0;;\00"
 // CHECK-DAG: [[DEF_LOC:@.+]] = private unnamed_addr global %struct.ident_t { i32 0, i32 2, i32 0, i32 0, i8* getelementptr inbounds ([23 x i8], [23 x i8]* [[STR]], i32 0, i32 0) }
 
 // CHECK-DAG: [[TT:%.+]] = type { i64, i8 }
 // CHECK-DAG: [[S1:%.+]] = type { double }
 // CHECK-DAG: [[ENTTY:%.+]] = type { i8*, i8*, i[[SZ:32|64]], i32, i32 }
-// CHECK-DAG: [[DEVTY:%.+]] = type { i8*, i8*, [[ENTTY]]*, [[ENTTY]]* }
-// CHECK-DAG: [[DSCTY:%.+]] = type { i32, [[DEVTY]]*, [[ENTTY]]*, [[ENTTY]]* }
 
 // TCHECK: [[ENTTY:%.+]] = type { i8*, i8*, i{{32|64}}, i32, i32 }
 
-// CHECK-DAG: $[[REGFN:\.omp_offloading\..+]] = comdat
-
 // We have 8 target regions, but only 7 that actually will generate offloading
 // code, only 6 will have mapped arguments, and only 4 have all-constant map
 // sizes.
 
 // CHECK-DAG: [[SIZET:@.+]] = private unnamed_addr constant [3 x i64] [i64 2, i64 4, i64 4]
 // CHECK-DAG: [[MAPT:@.+]] = private unnamed_addr constant [3 x i64] [i64 288, i64 800, i64 800]
 // CHECK-DAG: [[SIZET2:@.+]] = private unnamed_addr constant [1 x i64] [i64 2]
 // CHECK-DAG: [[MAPT2:@.+]] = private unnamed_addr constant [1 x i64] [i64 800]

 // TCHECK: @{{.+}} = weak constant [[ENTTY]]
 // TCHECK: @{{.+}} = weak constant [[ENTTY]]
 // TCHECK: @{{.+}} = weak constant [[ENTTY]]
 // TCHECK: @{{.+}} = weak constant [[ENTTY]]
 // TCHECK: @{{.+}} = weak constant [[ENTTY]]
 // TCHECK: @{{.+}} = weak constant [[ENTTY]]
 // TCHECK-NOT: @{{.+}} = weak constant [[ENTTY]]
 
-// Check if offloading descriptor is created.
-// CHECK: [[ENTBEGIN:@.+]] = external constant [[ENTTY]]
-// CHECK: [[ENTEND:@.+]] = external constant [[ENTTY]]
-// CHECK: [[DEVBEGIN:@.+]] = extern_weak constant i8
-// CHECK: [[DEVEND:@.+]] = extern_weak constant i8
-// CHECK: [[IMAGES:@.+]] = internal unnamed_addr constant [1 x [[DEVTY]]] [{{.+}} { i8* [[DEVBEGIN]], i8* [[DEVEND]], [[ENTTY]]* [[ENTBEGIN]], [[ENTTY]]* [[ENTEND]] }], comdat($[[REGFN]])
-// CHECK: [[DESC:@.+]] = internal constant [[DSCTY]] { i32 1, [[DEVTY]]* getelementptr inbounds ([1 x [[DEVTY]]], [1 x [[DEVTY]]]* [[IMAGES]], i32 0, i32 0), [[ENTTY]]* [[ENTBEGIN]], [[ENTTY]]* [[ENTEND]] }, comdat($[[REGFN]])
-
 // Check target registration is registered as a Ctor.
-// CHECK: appending global [2 x { i32, void ()*, i8* }] [{ i32, void ()*, i8* } { i32 0, void ()* @.omp_offloading.requires_reg, i8* null }, { i32, void ()*, i8* } { i32 0, void ()* @[[REGFN]], i8* bitcast (void ()* @[[REGFN]] to i8*) }]
-
+// CHECK: appending global [1 x { i32, void ()*, i8* }] [{ i32, void ()*, i8* } { i32 0, void ()* @.omp_offloading.requires_reg, i8* null }]
 
 template<typename tx, typename ty>
 struct TT{
   tx X;
   ty Y;
 };
 
 int global;

clang/test/OpenMP/target_teams_distribute_simd_codegen_registration.cpp

 // CHECK-DAG: [[SA:%.+]] = type { [4 x i32] }
 // CHECK-DAG: [[SB:%.+]] = type { [8 x i32] }
 // CHECK-DAG: [[SC:%.+]] = type { [16 x i32] }
 // CHECK-DAG: [[SD:%.+]] = type { [32 x i32] }
 // CHECK-DAG: [[SE:%.+]] = type { [64 x i32] }
 // CHECK-DAG: [[ST1:%.+]] = type { [228 x i32] }
 // CHECK-DAG: [[ST2:%.+]] = type { [1128 x i32] }
 // CHECK-DAG: [[ENTTY:%.+]] = type { i8*, i8*, i[[SZ:32|64]], i32, i32 }
-// CHECK-DAG: [[DEVTY:%.+]] = type { i8*, i8*, [[ENTTY]]*, [[ENTTY]]* }
-// CHECK-DAG: [[DSCTY:%.+]] = type { i32, [[DEVTY]]*, [[ENTTY]]*, [[ENTTY]]* }
 
 // TCHECK:    [[ENTTY:%.+]] = type { i8*, i8*, i[[SZ:32|64]], i32, i32 }
 
-// CHECK-DAG: $[[REGFN:\.omp_offloading\..+]] = comdat
-
 // CHECK-DAG: [[A1:@.+]] = internal global [[SA]]
 // CHECK-DAG: [[A2:@.+]] = global [[SA]]
 // CHECK-DAG: [[B1:@.+]] = global [[SB]]
 // CHECK-DAG: [[B2:@.+]] = global [[SB]]
 // CHECK-DAG: [[C1:@.+]] = internal global [[SC]]
 // CHECK-DAG: [[D1:@.+]] = global [[SD]]
 // CHECK-DAG: [[E1:@.+]] = global [[SE]]
 // CHECK-DAG: [[T1:@.+]] = global [[ST1]]

 // TCHECK-DAG: [[ENTRY9:@.+]] = weak constant [[ENTTY]] { i8* bitcast (void (i[[SZ]])* @{{.*}} to i8*), i8* getelementptr inbounds ([{{.*}} x i8], [{{.*}} x i8]* [[NAMEPTR9]], i32 0, i32 0), i[[SZ]] 0, i32 0, i32 0 }, section ".omp_offloading.entries", align 1
 // TCHECK-DAG: [[NAMEPTR10:@.+]] = internal unnamed_addr constant [{{.*}} x i8] c"[[NAME10:.+]]\00"
 // TCHECK-DAG: [[ENTRY10:@.+]] = weak constant [[ENTTY]] { i8* bitcast (void (i[[SZ]])* @{{.*}} to i8*), i8* getelementptr inbounds ([{{.*}} x i8], [{{.*}} x i8]* [[NAMEPTR10]], i32 0, i32 0), i[[SZ]] 0, i32 0, i32 0 }, section ".omp_offloading.entries", align 1
 // TCHECK-DAG: [[NAMEPTR11:@.+]] = internal unnamed_addr constant [{{.*}} x i8] c"[[NAME11:.+]]\00"
 // TCHECK-DAG: [[ENTRY11:@.+]] = weak constant [[ENTTY]] { i8* bitcast (void (i[[SZ]])* @{{.*}} to i8*), i8* getelementptr inbounds ([{{.*}} x i8], [{{.*}} x i8]* [[NAMEPTR11]], i32 0, i32 0), i[[SZ]] 0, i32 0, i32 0 }, section ".omp_offloading.entries", align 1
 // TCHECK-DAG: [[NAMEPTR12:@.+]] = internal unnamed_addr constant [{{.*}} x i8] c"[[NAME12:.+]]\00"
 // TCHECK-DAG: [[ENTRY12:@.+]] = weak constant [[ENTTY]] { i8* bitcast (void (i[[SZ]])* @{{.*}} to i8*), i8* getelementptr inbounds ([{{.*}} x i8], [{{.*}} x i8]* [[NAMEPTR12]], i32 0, i32 0), i[[SZ]] 0, i32 0, i32 0 }, section ".omp_offloading.entries", align 1
 
-// CHECK: [[ENTBEGIN:@.+]] = external constant [[ENTTY]]
-// CHECK: [[ENTEND:@.+]] = external constant [[ENTTY]]
-// CHECK: [[DEVBEGIN:@.+]] = extern_weak constant i8
-// CHECK: [[DEVEND:@.+]] = extern_weak constant i8
-// CHECK: [[IMAGES:@.+]] = internal unnamed_addr constant [1 x [[DEVTY]]] [{{.+}} { i8* [[DEVBEGIN]], i8* [[DEVEND]], [[ENTTY]]* [[ENTBEGIN]], [[ENTTY]]* [[ENTEND]] }], comdat($[[REGFN]])
-// CHECK: [[DESC:@.+]] = internal constant [[DSCTY]] { i32 1, [[DEVTY]]* getelementptr inbounds ([1 x [[DEVTY]]], [1 x [[DEVTY]]]* [[IMAGES]], i32 0, i32 0), [[ENTTY]]* [[ENTBEGIN]], [[ENTTY]]* [[ENTEND]] }, comdat($[[REGFN]])
-
 // We have 4 initializers, one for the 500 priority, another one for 501, or more for the default priority, and the last one for the offloading registration function.
-// CHECK: @llvm.global_ctors = appending global [5 x { i32, void ()*, i8* }] [
+// CHECK: @llvm.global_ctors = appending global [4 x { i32, void ()*, i8* }] [
 // CHECK-SAME: { i32, void ()*, i8* } { i32 500, void ()* [[P500:@[^,]+]], i8* null },
 // CHECK-SAME: { i32, void ()*, i8* } { i32 501, void ()* [[P501:@[^,]+]], i8* null },
 // CHECK-SAME: { i32, void ()*, i8* } { i32 65535, void ()* [[PMAX:@[^,]+]], i8* null },
-// CHECK-SAME: { i32, void ()*, i8* } { i32 0, void ()* @[[REGFN]], i8* bitcast (void ()* @[[REGFN]] to i8*) }]
 
 // CHECK-NTARGET: @llvm.global_ctors = appending global [3   x { i32, void ()*, i8* }] [
 
 extern int *R;
 
 struct SA {
   int arr[4];
   void foo() {

 //TCHECK-DAG: define weak void @[[NAME7]](
 //TCHECK-DAG: define weak void @[[NAME8]](
 //TCHECK-DAG: define weak void @[[NAME9]](
 //TCHECK-DAG: define weak void @[[NAME10]](
 //TCHECK-DAG: define weak void @[[NAME11]](
 //TCHECK-DAG: define weak void @[[NAME12]](
 
 // CHECK-NTARGET-NOT: __tgt_target
-// CHECK-NTARGET-NOT: __tgt_register_lib
-// CHECK-NTARGET-NOT: __tgt_unregister_lib
 
 // TCHECK-NOT: __tgt_target
-// TCHECK-NOT: __tgt_register_lib
-// TCHECK-NOT: __tgt_unregister_lib
 
 // We have 2 initializers with priority 500
 //CHECK: define internal void [[P500]](
 //CHECK:     call void @{{.+}}()
 //CHECK:     call void @{{.+}}()
 //CHECK-NOT: call void @{{.+}}()
 //CHECK:     ret void
 

 //CHECK:     call void @{{.+}}()
 //CHECK:     call void @{{.+}}()
 //CHECK:     call void @{{.+}}()
 //CHECK:     call void @{{.+}}()
 //CHECK:     call void @{{.+}}()
 //CHECK-NOT: call void @{{.+}}()
 //CHECK:     ret void
 
-// Check registration and unregistration
-
-//CHECK:     define internal void @.omp_offloading.requires_reg()
-//CHECK:     call void @__tgt_register_requires(i64 1)
-//CHECK:     ret void
-
-//CHECK:     define internal void @[[UNREGFN:.+]](i8*)
-//CHECK-SAME: comdat($[[REGFN]]) {
-//CHECK:     call i32 @__tgt_unregister_lib([[DSCTY]]* [[DESC]])
-//CHECK:     ret void
-//CHECK:     declare i32 @__tgt_unregister_lib([[DSCTY]]*)
-
-//CHECK:     define linkonce hidden void @[[REGFN]]()
-//CHECK-SAME: comdat {
-//CHECK:     call i32 @__tgt_register_lib([[DSCTY]]* [[DESC]])
-//CHECK:     call i32 @__cxa_atexit(void (i8*)* @[[UNREGFN]], i8* bitcast ([[DSCTY]]* [[DESC]] to i8*),
-//CHECK:     ret void
-//CHECK:     declare i32 @__tgt_register_lib([[DSCTY]]*)
-
 static __attribute__((init_priority(500))) SA a1;
 SA a2;
 SB __attribute__((init_priority(500))) b1;
 SB __attribute__((init_priority(501))) b2;
 static SC c1;
 SD d1;
 SE e1;
 ST<100> t1;
int bar(int a){
   for (int i = 0; i < 10; ++i)
     ++r;
 
   return r + *R;
 }
 
 // Check metadata is properly generated:
 // CHECK:     !omp_offload.info = !{!{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}}
-// CHECK-DAG: = !{i32 0, i32 [[DEVID:-?[0-9]+]], i32 [[FILEID:-?[0-9]+]], !"_ZN2SB3fooEv", i32 216, i32 {{[0-9]+}}}
-// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2SDD1Ev", i32 268, i32 {{[0-9]+}}}
-// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2SEC1Ev", i32 286, i32 {{[0-9]+}}}
-// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2SED1Ev", i32 293, i32 {{[0-9]+}}}
-// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi1000EE3fooEv", i32 305, i32 {{[0-9]+}}}
-// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi100EEC1Ev", i32 312, i32 {{[0-9]+}}}
-// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_Z3bari", i32 440, i32 {{[0-9]+}}}
-// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi100EED1Ev", i32 319, i32 {{[0-9]+}}}
-// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi1000EEC1Ev", i32 312, i32 {{[0-9]+}}}
-// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi1000EED1Ev", i32 319, i32 {{[0-9]+}}}
-// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi100EE3fooEv", i32 305, i32 {{[0-9]+}}}
-// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2SCC1Ev", i32 242, i32 {{[0-9]+}}}
+// CHECK-DAG: = !{i32 0, i32 [[DEVID:-?[0-9]+]], i32 [[FILEID:-?[0-9]+]], !"_ZN2SB3fooEv", i32 204, i32 {{[0-9]+}}}
+// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2SDD1Ev", i32 256, i32 {{[0-9]+}}}
+// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2SEC1Ev", i32 274, i32 {{[0-9]+}}}
+// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2SED1Ev", i32 281, i32 {{[0-9]+}}}
+// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi1000EE3fooEv", i32 293, i32 {{[0-9]+}}}
+// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi100EEC1Ev", i32 300, i32 {{[0-9]+}}}
+// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_Z3bari", i32 405, i32 {{[0-9]+}}}
+// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi100EED1Ev", i32 307, i32 {{[0-9]+}}}
+// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi1000EEC1Ev", i32 300, i32 {{[0-9]+}}}
+// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi1000EED1Ev", i32 307, i32 {{[0-9]+}}}
+// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi100EE3fooEv", i32 293, i32 {{[0-9]+}}}
+// CHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2SCC1Ev", i32 230, i32 {{[0-9]+}}}
 
 // TCHECK:     !omp_offload.info = !{!{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}}
-// TCHECK-DAG: = !{i32 0, i32 [[DEVID:-?[0-9]+]], i32 [[FILEID:-?[0-9]+]], !"_ZN2SB3fooEv", i32 216, i32 {{[0-9]+}}}
-// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2SDD1Ev", i32 268, i32 {{[0-9]+}}}
-// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2SEC1Ev", i32 286, i32 {{[0-9]+}}}
-// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2SED1Ev", i32 293, i32 {{[0-9]+}}}
-// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi1000EE3fooEv", i32 305, i32 {{[0-9]+}}}
-// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi100EEC1Ev", i32 312, i32 {{[0-9]+}}}
-// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_Z3bari", i32 440, i32 {{[0-9]+}}}
-// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi100EED1Ev", i32 319, i32 {{[0-9]+}}}
-// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi1000EEC1Ev", i32 312, i32 {{[0-9]+}}}
-// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi1000EED1Ev", i32 319, i32 {{[0-9]+}}}
-// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi100EE3fooEv", i32 305, i32 {{[0-9]+}}}
-// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2SCC1Ev", i32 242, i32 {{[0-9]+}}}
+// TCHECK-DAG: = !{i32 0, i32 [[DEVID:-?[0-9]+]], i32 [[FILEID:-?[0-9]+]], !"_ZN2SB3fooEv", i32 204, i32 {{[0-9]+}}}
+// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2SDD1Ev", i32 256, i32 {{[0-9]+}}}
+// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2SEC1Ev", i32 274, i32 {{[0-9]+}}}
+// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2SED1Ev", i32 281, i32 {{[0-9]+}}}
+// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi1000EE3fooEv", i32 293, i32 {{[0-9]+}}}
+// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi100EEC1Ev", i32 300, i32 {{[0-9]+}}}
+// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_Z3bari", i32 405, i32 {{[0-9]+}}}
+// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi100EED1Ev", i32 307, i32 {{[0-9]+}}}
+// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi1000EEC1Ev", i32 300, i32 {{[0-9]+}}}
+// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi1000EED1Ev", i32 307, i32 {{[0-9]+}}}
+// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2STILi100EE3fooEv", i32 293, i32 {{[0-9]+}}}
+// TCHECK-DAG: = !{i32 0, i32 [[DEVID]], i32 [[FILEID]], !"_ZN2SCC1Ev", i32 230, i32 {{[0-9]+}}}
 
 // TCHECK-DAG: !{!"llvm.loop.vectorize.enable", i1 true}
 // CHECK-DAG: !{!"llvm.loop.vectorize.enable", i1 true}
 
 #endif

clang/test/OpenMP/target_teams_distribute_simd_depend_codegen.cpp

 // SIMD-ONLY1-NOT: {{__kmpc|__tgt}}
 
 // expected-no-diagnostics
 #ifndef HEADER
 #define HEADER
 
 // CHECK-DAG: [[TT:%.+]] = type { i64, i8 }
 // CHECK-DAG: [[ENTTY:%.+]] = type { i8*, i8*, i[[SZ:32|64]], i32, i32 }
-// CHECK-DAG: [[DEVTY:%.+]] = type { i8*, i8*, [[ENTTY]]*, [[ENTTY]]* }
-// CHECK-DAG: [[DSCTY:%.+]] = type { i32, [[DEVTY]]*, [[ENTTY]]*, [[ENTTY]]* }
 
 // TCHECK: [[ENTTY:%.+]] = type { i8*, i8*, i{{32|64}}, i32, i32 }
 
-// CHECK-DAG: $[[REGFN:\.omp_offloading\..+]] = comdat
-
 // CHECK-DAG: [[SIZET:@.+]] = private unnamed_addr constant [2 x i64] [i64 0, i64 4]
 // CHECK-DAG: [[MAPT:@.+]] = private unnamed_addr constant [2 x i64] [i64 544, i64 800]
 // CHECK-DAG: @{{.*}} = weak constant i8 0
 
 // TCHECK: @{{.+}} = weak constant [[ENTTY]]
 // TCHECK: @{{.+}} = {{.*}}constant [[ENTTY]]
 // TCHECK-NOT: @{{.+}} = weak constant [[ENTTY]]
 
-// Check if offloading descriptor is created.
-// CHECK: [[ENTBEGIN:@.+]] = external constant [[ENTTY]]
-// CHECK: [[ENTEND:@.+]] = external constant [[ENTTY]]
-// CHECK: [[DEVBEGIN:@.+]] = extern_weak constant i8
-// CHECK: [[DEVEND:@.+]] = extern_weak constant i8
-// CHECK: [[IMAGES:@.+]] = internal unnamed_addr constant [1 x [[DEVTY]]] [{{.+}} { i8* [[DEVBEGIN]], i8* [[DEVEND]], [[ENTTY]]* [[ENTBEGIN]], [[ENTTY]]* [[ENTEND]] }], comdat($[[REGFN]])
-// CHECK: [[DESC:@.+]] = internal constant [[DSCTY]] { i32 1, [[DEVTY]]* getelementptr inbounds ([1 x [[DEVTY]]], [1 x [[DEVTY]]]* [[IMAGES]], i32 0, i32 0), [[ENTTY]]* [[ENTBEGIN]], [[ENTTY]]* [[ENTEND]] }, comdat($[[REGFN]])
-
 // Check target registration is registered as a Ctor.
-// CHECK: appending global [2 x { i32, void ()*, i8* }] [{ i32, void ()*, i8* } { i32 0, void ()* @.omp_offloading.requires_reg, i8* null }, { i32, void ()*, i8* } { i32 0, void ()* @[[REGFN]], i8* bitcast (void ()* @[[REGFN]] to i8*) }]
-
+// CHECK: appending global [1 x { i32, void ()*, i8* }] [{ i32, void ()*, i8* } { i32 0, void ()* @.omp_offloading.requires_reg, i8* null }]
 
 template<typename tx, typename ty>
 struct TT{
   tx X;
   ty Y;
 };
 
 int global;

clang/test/OpenMP/target_teams_num_teams_codegen.cpp

 #define HEADER
 
 // CHECK-DAG: %struct.ident_t = type { i32, i32, i32, i32, i8* }
 // CHECK-DAG: [[STR:@.+]] = private unnamed_addr constant [23 x i8] c";unknown;unknown;0;0;;\00"
 // CHECK-DAG: [[DEF_LOC:@.+]] = private unnamed_addr global %struct.ident_t { i32 0, i32 2, i32 0, i32 0, i8* getelementptr inbounds ([23 x i8], [23 x i8]* [[STR]], i32 0, i32 0) }
 
 // CHECK-DAG: [[S1:%.+]] = type { double }
 // CHECK-DAG: [[ENTTY:%.+]] = type { i8*, i8*, i[[SZ:32|64]], i32, i32 }
-// CHECK-DAG: [[DEVTY:%.+]] = type { i8*, i8*, [[ENTTY]]*, [[ENTTY]]* }
-// CHECK-DAG: [[DSCTY:%.+]] = type { i32, [[DEVTY]]*, [[ENTTY]]*, [[ENTTY]]* }
 
 // TCHECK: [[ENTTY:%.+]] = type { i8*, i8*, i{{32|64}}, i32, i32 }
 
-// CHECK-DAG: $[[REGFN:\.omp_offloading\..+]] = comdat
-
 // We have 6 target regions
 
 // CHECK-DAG: @{{.*}} = weak constant i8 0
 // CHECK-DAG: @{{.*}} = weak constant i8 0
 // CHECK-DAG: @{{.*}} = weak constant i8 0
 // CHECK-DAG: @{{.*}} = weak constant i8 0
 // CHECK-DAG: @{{.*}} = weak constant i8 0
 // CHECK-DAG: @{{.*}} = weak constant i8 0
 
 // TCHECK: @{{.+}} = weak constant [[ENTTY]]
 // TCHECK: @{{.+}} = weak constant [[ENTTY]]
 // TCHECK: @{{.+}} = weak constant [[ENTTY]]
 // TCHECK: @{{.+}} = weak constant [[ENTTY]]
 // TCHECK: @{{.+}} = weak constant [[ENTTY]]
 // TCHECK: @{{.+}} = weak constant [[ENTTY]]
 
-// Check if offloading descriptor is created.
-// CHECK: [[ENTBEGIN:@.+]] = external constant [[ENTTY]]
-// CHECK: [[ENTEND:@.+]] = external constant [[ENTTY]]
-// CHECK: [[DEVBEGIN:@.+]] = extern_weak constant i8
-// CHECK: [[DEVEND:@.+]] = extern_weak constant i8
-// CHECK: [[IMAGES:@.+]] = internal unnamed_addr constant [1 x [[DEVTY]]] [{{.+}} { i8* [[DEVBEGIN]], i8* [[DEVEND]], [[ENTTY]]* [[ENTBEGIN]], [[ENTTY]]* [[ENTEND]] }], comdat($[[REGFN]])
-// CHECK: [[DESC:@.+]] = internal constant [[DSCTY]] { i32 1, [[DEVTY]]* getelementptr inbounds ([1 x [[DEVTY]]], [1 x [[DEVTY]]]* [[IMAGES]], i32 0, i32 0), [[ENTTY]]* [[ENTBEGIN]], [[ENTTY]]* [[ENTEND]] }, comdat($[[REGFN]])
-
 // Check target registration is registered as a Ctor.
-// CHECK: appending global [2 x { i32, void ()*, i8* }] [{ i32, void ()*, i8* } { i32 0, void ()* @.omp_offloading.requires_reg, i8* null }, { i32, void ()*, i8* } { i32 0, void ()* @[[REGFN]], i8* bitcast (void ()* @[[REGFN]] to i8*) }]
-
+// CHECK: appending global [1 x { i32, void ()*, i8* }] [{ i32, void ()*, i8* } { i32 0, void ()* @.omp_offloading.requires_reg, i8* null }]
 
 template<typename tx>
 tx ftemplate(int n) {
   tx a = 0;
 
   #pragma omp target teams num_teams(tx(20))
   {
   }

clang/test/OpenMP/target_teams_thread_limit_codegen.cpp

 #define HEADER
 
 // CHECK-DAG: %struct.ident_t = type { i32, i32, i32, i32, i8* }
 // CHECK-DAG: [[STR:@.+]] = private unnamed_addr constant [23 x i8] c";unknown;unknown;0;0;;\00"
 // CHECK-DAG: [[DEF_LOC:@.+]] = private unnamed_addr global %struct.ident_t { i32 0, i32 2, i32 0, i32 0, i8* getelementptr inbounds ([23 x i8], [23 x i8]* [[STR]], i32 0, i32 0) }
 
 // CHECK-DAG: [[S1:%.+]] = type { double }
 // CHECK-DAG: [[ENTTY:%.+]] = type { i8*, i8*, i[[SZ:32|64]], i32, i32 }
-// CHECK-DAG: [[DEVTY:%.+]] = type { i8*, i8*, [[ENTTY]]*, [[ENTTY]]* }
-// CHECK-DAG: [[DSCTY:%.+]] = type { i32, [[DEVTY]]*, [[ENTTY]]*, [[ENTTY]]* }
 
 // TCHECK: [[ENTTY:%.+]] = type { i8*, i8*, i{{32|64}}, i32, i32 }
 
-// CHECK-DAG: $[[REGFN:\.omp_offloading\..+]] = comdat
-
 // We have 6 target regions
 
 // CHECK-DAG: @{{.*}} = weak constant i8 0
 // CHECK-DAG: @{{.*}} = weak constant i8 0
 // CHECK-DAG: @{{.*}} = weak constant i8 0
 // CHECK-DAG: @{{.*}} = weak constant i8 0
 // CHECK-DAG: @{{.*}} = weak constant i8 0
 // CHECK-DAG: @{{.*}} = weak constant i8 0
 
 // TCHECK: @{{.+}} = weak constant [[ENTTY]]
 // TCHECK: @{{.+}} = weak constant [[ENTTY]]
 // TCHECK: @{{.+}} = weak constant [[ENTTY]]
 // TCHECK: @{{.+}} = weak constant [[ENTTY]]
 // TCHECK: @{{.+}} = weak constant [[ENTTY]]
 // TCHECK: @{{.+}} = weak constant [[ENTTY]]
 
-// Check if offloading descriptor is created.
-// CHECK: [[ENTBEGIN:@.+]] = external constant [[ENTTY]]
-// CHECK: [[ENTEND:@.+]] = external constant [[ENTTY]]
-// CHECK: [[DEVBEGIN:@.+]] = extern_weak constant i8
-// CHECK: [[DEVEND:@.+]] = extern_weak constant i8
-// CHECK: [[IMAGES:@.+]] = internal unnamed_addr constant [1 x [[DEVTY]]] [{{.+}} { i8* [[DEVBEGIN]], i8* [[DEVEND]], [[ENTTY]]* [[ENTBEGIN]], [[ENTTY]]* [[ENTEND]] }], comdat($[[REGFN]])
-// CHECK: [[DESC:@.+]] = internal constant [[DSCTY]] { i32 1, [[DEVTY]]* getelementptr inbounds ([1 x [[DEVTY]]], [1 x [[DEVTY]]]* [[IMAGES]], i32 0, i32 0), [[ENTTY]]* [[ENTBEGIN]], [[ENTTY]]* [[ENTEND]] }, comdat($[[REGFN]])
-
 // Check target registration is registered as a Ctor.
-// CHECK: appending global [2 x { i32, void ()*, i8* }] [{ i32, void ()*, i8* } { i32 0, void ()* @.omp_offloading.requires_reg, i8* null }, { i32, void ()*, i8* } { i32 0, void ()* @[[REGFN]], i8* bitcast (void ()* @[[REGFN]] to i8*) }]
-
+// CHECK: appending global [1 x { i32, void ()*, i8* }] [{ i32, void ()*, i8* } { i32 0, void ()* @.omp_offloading.requires_reg, i8* null }]
 
 template<typename tx>
 tx ftemplate(int n) {
   tx a = 0;
 
   #pragma omp target teams thread_limit(tx(20))
   {
   }

clang/tools/CMakeLists.txt

 create_subdirectory_options(CLANG TOOL)
 
 add_clang_subdirectory(diagtool)
 add_clang_subdirectory(driver)
 add_clang_subdirectory(clang-diff)
 add_clang_subdirectory(clang-format)
 add_clang_subdirectory(clang-format-vs)
 add_clang_subdirectory(clang-fuzzer)
 add_clang_subdirectory(clang-import-test)
 add_clang_subdirectory(clang-offload-bundler)
+add_clang_subdirectory(clang-offload-wrapper)
 add_clang_subdirectory(clang-scan-deps)
 
 add_clang_subdirectory(c-index-test)
 
 add_clang_subdirectory(clang-rename)
 add_clang_subdirectory(clang-refactor)
 if(UNIX)
   add_clang_subdirectory(clang-shlib)

clang/tools/clang-offload-wrapper/CMakeLists.txt

+set(LLVM_LINK_COMPONENTS BitWriter Core Support TransformUtils)
+
+if(NOT CLANG_BUILT_STANDALONE)
+  set(tablegen_deps intrinsics_gen)
+endif()
+
+add_clang_executable(clang-offload-wrapper
+  ClangOffloadWrapper.cpp
+
+  DEPENDS
+  ${tablegen_deps}
+  )
+
+set(CLANG_OFFLOAD_WRAPPER_LIB_DEPS
+  clangBasic
+  )
+
+add_dependencies(clang clang-offload-wrapper)
+
+target_link_libraries(clang-offload-wrapper
+  PRIVATE
+  ${CLANG_OFFLOAD_WRAPPER_LIB_DEPS}
+  )
+
+install(TARGETS clang-offload-wrapper RUNTIME DESTINATION bin)

clang/tools/clang-offload-wrapper/ClangOffloadWrapper.cpp

+//===-- clang-offload-wrapper/ClangOffloadWrapper.cpp ---------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+///
+/// \file
+/// Implememtation of the offload wrapper tool. It takes offload target binaries
+/// as input and creates wrapper bitcode from them which registers given
+/// binaries in offload runtime.
+///
+//===----------------------------------------------------------------------===//
+
+#include "clang/Basic/Version.h"
+#include "llvm/ADT/ArrayRef.h"
+#include "llvm/ADT/Triple.h"
+#include "llvm/Bitcode/BitcodeWriter.h"
+#include "llvm/IR/Constants.h"
+#include "llvm/IR/GlobalVariable.h"
+#include "llvm/IR/IRBuilder.h"
+#include "llvm/IR/LLVMContext.h"
+#include "llvm/IR/Module.h"
+#include "llvm/Support/CommandLine.h"
+#include "llvm/Support/Error.h"
+#include "llvm/Support/ErrorOr.h"
+#include "llvm/Support/MemoryBuffer.h"
+#include "llvm/Support/Signals.h"
+#include "llvm/Support/raw_ostream.h"
+#include "llvm/Transforms/Utils/ModuleUtils.h"
+#include <cassert>
+#include <cstddef>
+#include <cstdint>
+
+using namespace llvm;
+
+static cl::opt<bool> Help("h", cl::desc("Alias for -help"), cl::Hidden);
+
+// Mark all our options with this category, everything else (except for -version
+// and -help) will be hidden.
+static cl::OptionCategory
+    ClangOffloadWrapperCategory("clang-offload-wrapper options");
+
+static cl::opt<std::string> Output("o", cl::Required,
+                                   cl::desc("Output filename"),
+                                   cl::value_desc("filename"),
+                                   cl::cat(ClangOffloadWrapperCategory));
+
+static cl::list<std::string> Inputs(cl::Positional, cl::OneOrMore,
+                                    cl::desc("<input  files>"),
+                                    cl::cat(ClangOffloadWrapperCategory));
+
+static cl::opt<std::string> Target("target", cl::Required,
+                                   cl::desc("Target triple"),
+                                   cl::value_desc("triple"),
+                                   cl::cat(ClangOffloadWrapperCategory));
+
+namespace {
+
+class BinaryWrapper {
+  LLVMContext C;
+  Module M;
+
+  StructType* EntryTy = nullptr;
+  StructType* ImageTy = nullptr;
+  StructType* DescTy = nullptr;
+
+  using MemoryBuffersVector = SmallVectorImpl<std::unique_ptr<MemoryBuffer>>;
+
+private:
+  IntegerType *getSizeTTy() {
+    auto PtrSize = M.getDataLayout().getPointerTypeSize(Type::getInt8PtrTy(C));
+    return PtrSize == 8 ? Type::getInt64Ty(C) : Type::getInt32Ty(C);
+  }
+
+  // struct __tgt_offload_entry {
+  //   void *addr;
+  //   char *name;
+  //   size_t size;
+  //   int32_t flags;
+  //   int32_t reserved;
+  // };
+  StructType *getEntryTy() {
+    if (!EntryTy)
+      EntryTy = StructType::create("__tgt_offload_entry", Type::getInt8PtrTy(C),
+                                   Type::getInt8PtrTy(C), getSizeTTy(),
+                                   Type::getInt32Ty(C), Type::getInt32Ty(C));
+    return EntryTy;
+  }
+
+  PointerType *getEntryPtrTy() {
+    return PointerType::getUnqual(getEntryTy());
+  }
+
+  // struct __tgt_device_image {
+  //   void *ImageStart;
+  //   void *ImageEnd;
+  //   __tgt_offload_entry *EntriesBegin;
+  //   __tgt_offload_entry *EntriesEnd;
+  // };
+  StructType *getDeviceImageTy() {
+    if (!ImageTy)
+      ImageTy = StructType::create("__tgt_device_image", Type::getInt8PtrTy(C),
+                                   Type::getInt8PtrTy(C), getEntryPtrTy(),
+                                   getEntryPtrTy());
+    return ImageTy;
+  }
+
+  PointerType *getDeviceImagePtrTy() {
+    return PointerType::getUnqual(getDeviceImageTy());
+  }
+
+  // struct __tgt_bin_desc {
+  //   int32_t NumDeviceImages;
+  //   __tgt_device_image *DeviceImages;
+  //   __tgt_offload_entry *HostEntriesBegin;
+  //   __tgt_offload_entry *HostEntriesEnd;
+  // };
+  StructType *getBinDescTy() {
+    if (!DescTy)
+      DescTy = StructType::create("__tgt_bin_desc", Type::getInt32Ty(C),
+                                  getDeviceImagePtrTy(), getEntryPtrTy(),
+                                  getEntryPtrTy());
+    return DescTy;
+  }
+
+  PointerType *getBinDescPtrTy() {
+    return PointerType::getUnqual(getBinDescTy());
+  }
+
+  GlobalVariable *createBinDesc(const MemoryBuffersVector &Bufs) {
+    auto *EntriesB = new GlobalVariable(M, getEntryTy(), true,
+                                        GlobalValue::ExternalLinkage, nullptr,
+                                        "__omp_offloading_entries_begin");
+    auto *EntriesE = new GlobalVariable(M, getEntryTy(), true,
+                                        GlobalValue::ExternalLinkage, nullptr,
+                                        "__omp_offloading_entries_end");
+
+    auto *Zero = ConstantInt::get(getSizeTTy(), 0u);
+    Constant *ZeroZero[] = { Zero, Zero };
+
+    SmallVector<Constant *, 4> ImagesInits;
+    for (const auto &Buf : Bufs) {
+      auto *Data = ConstantDataArray::get(
+          C, makeArrayRef(Buf->getBufferStart(), Buf->getBufferSize()));
+
+      auto *Image = new GlobalVariable(M, Data->getType(), true,
+                                          GlobalVariable::InternalLinkage,
+                                          Data,
+                                          ".omp_offloading.device_image");
+      Image->setUnnamedAddr(GlobalValue::UnnamedAddr::Global);
+
+      auto *Size = ConstantInt::get(getSizeTTy(), Buf->getBufferSize());
+      Constant *ZeroSize[] = { Zero, Size };
+
+      auto *ImageB = ConstantExpr::getGetElementPtr(Image->getValueType(),
+                                                    Image, ZeroZero);
+      auto *ImageE = ConstantExpr::getGetElementPtr(Image->getValueType(),
+                                                    Image, ZeroSize);
+
+      ImagesInits.push_back(ConstantStruct::get(getDeviceImageTy(),
+        ImageB, ImageE, EntriesB, EntriesE));
+    }
+
+    auto *ImagesData = ConstantArray::get(
+        ArrayType::get(getDeviceImageTy(), ImagesInits.size()), ImagesInits);
+
+    auto *Images = new GlobalVariable(M, ImagesData->getType(), true,
+                                      GlobalValue::InternalLinkage,
+                                      ImagesData,
+                                      ".omp_offloading.device_images");
+    Images->setUnnamedAddr(GlobalValue::UnnamedAddr::Global);
+
+    auto *ImagesB = ConstantExpr::getGetElementPtr(Images->getValueType(),
+                                                   Images, ZeroZero);
+
+    auto *DescInit = ConstantStruct::get(getBinDescTy(),
+      ConstantInt::get(Type::getInt32Ty(C), ImagesInits.size()), ImagesB,
+      EntriesB, EntriesE);
+
+    return new GlobalVariable(M, DescInit->getType(), true,
+                              GlobalValue::InternalLinkage, DescInit,
+                              ".omp_offloading.descriptor");
+  }
+
+  void createRegisterFunction(GlobalVariable *BinDesc) {
+    auto *FuncTy = FunctionType::get(Type::getVoidTy(C), {}, false);
+    auto *Func = Function::Create(FuncTy, GlobalValue::InternalLinkage,
+                                  ".omp_offloading.descriptor_reg", &M);
+    Func->setSection(".text.startup");
+
+    // Get __tgt_register_lib function declaration.
+    auto *RegFuncTy = FunctionType::get(Type::getVoidTy(C),
+                                        { getBinDescPtrTy() }, false);
+    auto RegFuncC = M.getOrInsertFunction("__tgt_register_lib",
+                                          RegFuncTy);
+
+    // Construct function body
+    IRBuilder<> Builder(BasicBlock::Create(C, "entry", Func));
+    Builder.CreateCall(RegFuncC, { BinDesc });
+    Builder.CreateRetVoid();
+
+    // Add this function to constructors.
+    appendToGlobalCtors(M, Func, 0);
+  }
+
+  void createUnregisterFunction(GlobalVariable *BinDesc) {
+    auto *FuncTy = FunctionType::get(Type::getVoidTy(C), {}, false);
+    auto *Func = Function::Create(FuncTy, GlobalValue::InternalLinkage,
+                                  ".omp_offloading.descriptor_unreg", &M);
+    Func->setSection(".text.startup");
+
+    // Get __tgt_unregister_lib function declaration.
+    auto *UnRegFuncTy = FunctionType::get(Type::getVoidTy(C),
+                                          { getBinDescPtrTy() }, false);
+    auto UnRegFuncC = M.getOrInsertFunction("__tgt_unregister_lib",
+                                            UnRegFuncTy);
+
+    // Construct function body
+    IRBuilder<> Builder(BasicBlock::Create(C, "entry", Func));
+    Builder.CreateCall(UnRegFuncC, { BinDesc });
+    Builder.CreateRetVoid();
+
+    // Add this function to global destructors.
+    appendToGlobalDtors(M, Func, 0);
+  }
+
+public:
+  BinaryWrapper(const std::string &Target) : M("offload.wrapper.object", C) {
+    M.setTargetTriple(Target);
+  }
+
+  const Module &wrapBinaries(const MemoryBuffersVector &Binaries) {
+    auto *Desc = createBinDesc(Binaries);
+    assert(Desc && "no binary descriptor");
+    createRegisterFunction(Desc);
+    createUnregisterFunction(Desc);
+    return M;
+  }
+};
+
+} // anonymous namespace
+
+int main(int argc, const char **argv) {
+  sys::PrintStackTraceOnErrorSignal(argv[0]);
+
+  cl::HideUnrelatedOptions(ClangOffloadWrapperCategory);
+  cl::SetVersionPrinter([](raw_ostream &OS) {
+    OS << clang::getClangToolFullVersion("clang-offload-wrapper") << '\n';
+  });
+  cl::ParseCommandLineOptions(
+      argc, argv,
+      "A tool to create a wrapper bitcode for offload target binaries.\n"
+      "Takes offload target binaries as input and produces bitcode file "
+      "containing\ntarget binaries packaged as data and initialization code "
+      "which registers target\nbinaries in offload runtime.");
+
+  if (Help) {
+    cl::PrintHelpMessage();
+    return 0;
+  }
+
+  if (Target.empty()) {
+    errs() << "error: no target specified\n";
+    return 1;
+  }
+
+  // Create the bitcode file to write the resulting code to.
+  {
+    std::error_code EC;
+    raw_fd_ostream F(Output, EC, sys::fs::F_None);
+    if (EC) {
+      errs() << "error: unable to open output file: " << EC.message()
+             << ".\n";
+      return 1;
+    }
+
+    // Read device binaries.
+    SmallVector<std::unique_ptr<MemoryBuffer>, 4> DeviceBinaries;
+    for (const auto &File : Inputs) {
+      auto InputOrErr = MemoryBuffer::getFileOrSTDIN(File);
+      if (auto EC = InputOrErr.getError()) {
+        errs() << "error: can't open file " << File << ": " << EC.message()
+               << "\n";
+        return 1;
+      }
+      DeviceBinaries.emplace_back(std::move(*InputOrErr));
+    }
+
+    // Create a wrapper for device binaries and write its bitcode to the file.
+    WriteBitcodeToFile(BinaryWrapper(Target).wrapBinaries(DeviceBinaries), F);
+  }
+  return 0;
+}

openmp/libomptarget/src/CMakeLists.txt

 add_library(omptarget SHARED ${src_files})
 target_link_libraries(omptarget
   ${CMAKE_DL_LIBS}
   "-Wl,--version-script=${CMAKE_CURRENT_SOURCE_DIR}/exports")
 
 # Install libomptarget under the lib destination folder.
 install(TARGETS omptarget LIBRARY COMPONENT omptarget
   DESTINATION "${OPENMP_INSTALL_LIBDIR}")
+
+# Begin/end object for libomptarget.
+set(omptargetbegin_src "${CMAKE_CURRENT_SOURCE_DIR}/omptargetbegin.c")
+set(omptargetend_src   "${CMAKE_CURRENT_SOURCE_DIR}/omptargetend.c")
+
+set(omptargetbegin_obj "${CMAKE_LIBRARY_OUTPUT_DIRECTORY}/omptargetbegin${CMAKE_C_OUTPUT_EXTENSION}")
+set(omptargetend_obj   "${CMAKE_LIBRARY_OUTPUT_DIRECTORY}/omptargetend${CMAKE_C_OUTPUT_EXTENSION}")
+
+add_custom_command(
+  OUTPUT ${omptargetbegin_obj}
+  COMMAND ${CMAKE_C_COMPILER} -c -fPIC ${omptargetbegin_src} -o ${omptargetbegin_obj}
+  DEPENDS ${omptargetbegin_src}
+  COMMENT "Building C object ${omptargetbegin_obj}"
+  VERBATIM)
+
+add_custom_command(
+  OUTPUT ${omptargetend_obj}
+  COMMAND ${CMAKE_C_COMPILER} -c -fPIC ${omptargetend_src} -o ${omptargetend_obj}
+  DEPENDS ${omptargetend_src}
+  COMMENT "Building C object ${omptargetend_obj}"
+  VERBATIM)
+
+add_custom_target(omptargetbeginend ALL DEPENDS ${omptargetbegin_obj} ${omptargetend_obj})
+
+install(FILES ${omptargetbegin_obj} ${omptargetend_obj}
+        DESTINATION "${OPENMP_INSTALL_LIBDIR}"
+        COMPONENT omptarget)

openmp/libomptarget/src/omptargetbegin.c

+//===-- omptargetbegin.c - OpenMP offload entry table start -------*- C -*-===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+///
+/// \file
+/// This file defines 'begin' symbol for the OpenMP offload entry table.
+///
+//===----------------------------------------------------------------------===//
+
+__attribute__((visibility("hidden"), section(".omp_offloading.entries")))
+char __omp_offloading_entries_begin[0];
+

openmp/libomptarget/src/omptargetend.c

+//===-- omptargetend.c - OpenMP offload entry table end -----------*- C -*-===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+///
+/// \file
+/// This file defines 'end' symbol for the OpenMP offload entry table.
+///
+//===----------------------------------------------------------------------===//
+
+__attribute__((visibility("hidden"), section(".omp_offloading.entries")))
+char __omp_offloading_entries_end[0];
+