[Builtins] Provide a mechanism to selectively disable tests based on whether an implementation is provided by a builtin library.

[delcypher]

Summary

If a platform removes some builtin implementations (e.g. via the
Darwin-excludes mechanism) then this can lead to test failures because
the test expects an implementation to be available.

To solve this lit features are added for each configuration based
on which sources are included in the builtin library. The features
are of the form librt_has_<name> where <name> is the name of the
source file with the file extension removed. This handles C and
assembly sources.

With the lit features in place it is possible to make certain tests
require them.

Example:

REQUIRES: librt_has_comparedf2

All top-level tests in test/builtins/Unit (i.e. not under
arm, ppc, and riscv) have been annotated with the appropriate
REQUIRES: librt_has_* statement.

rdar://problem/55520987

[delcypher]

Add sanity checks to lit config.

[delcypher]

@beanz @steven_wu @arphaman @phosek @dexonsmith @thakis Ping.

[phosek]

LGTM % a few nits

test/builtins/Unit/lit.cfg.py

101 ↗

(On Diff #222668)

No need to check the length, if builtins_source_features: is sufficient.

108 ↗

(On Diff #222668)

I'd slightly prefer to do:

if builtin_source_feature not in builtins_source_features_set:
  builtins_source_features_set.add(builtin_source_feature)
else:
  builtins_source_feature_duplicates.append(builtin_source_feature)

It seems easier to comprehend.

[delcypher]

test/builtins/Unit/lit.cfg.py

108 ↗

(On Diff #222668)

Agreed. That is easier to read. The original code I wrote was written that way is to avoid doing two set look ups, instead the original code only does one.

However this is probably a very premature optimization at the expense of readability so let's go with the more readable option for now.

[delcypher]

• Rename crt_has_* -> librt_has_* so consistency with %librt lit substitution.
• Annotate as many tests as possible.
• Make python fixups suggested by Petr Hosek.

[delcypher]

@beanz @steven_wu @arphaman @phosek @dexonsmith @thakis I've improved this patch by annotating as many tests as possible. Okay to land?

[delcypher]

Ping.

[arphaman]

LGTM

[delcypher]

Damn looks like something is broken for linux powerpc

http://lab.llvm.org:8011/builders/clang-ppc64be-linux-multistage/builds/21208/steps/ninja%20check%201/logs/stdio

llvm-lit: /home/buildbots/ppc64be-clang-multistage-test/clang-ppc64be-multistage/llvm/projects/compiler-rt/test/builtins/Unit/lit.cfg.py:116: fatal: builtins_source_features contains duplicates: ['librt_has_divtc3']

I'm going to turn this into a warning to unbreak the bot for now.

@joerg @rupprecht Any idea what's going on here? My CMake code jsut reads the source files used to built the builtin library. My guess is that both lib/builtins/ppc/divtc3.c and lib/builtins/divtc3.c are used to build the builtin library for powerpc. That sounds like a bug. I'd expect that to cause a linker error with multiple symbols of the same name being defined.

[delcypher]

Landed workaround to downgrade fatal error to warning in r375162.

[delcypher]

@joerg @rupprecht

So lib/builtins/CMakeLists.txt has

set(GENERIC_SOURCES
  absvdi2.c
  ....
  divtc3.c
  ...
)

and then later

set(powerpc64_SOURCES
  ppc/divtc3.c
  ppc/fixtfdi.c
  ppc/fixunstfti.c
  ppc/fixunstfdi.c
  ppc/floattitf.c
  ppc/floatditf.c
  ppc/floatunditf.c
  ppc/gcc_qadd.c
  ppc/gcc_qdiv.c
  ppc/gcc_qmul.c
  ppc/gcc_qsub.c
  ppc/multc3.c
  ${GENERIC_SOURCES}
)

so it looks like both lib/builtins/divtc3.c and lib/builtins/ppc/divtc3.c are used for the builtin library for powerpc. I'm guessing rather than using set(powerpc64_SOURCES ... ${GENERIC_SOURCES}) we need a function that produces a list with files with duplicate filenames (not full path) removed.

[rupprecht]

In D68064#1713535, @delcypher wrote:

Damn looks like something is broken for linux powerpc

http://lab.llvm.org:8011/builders/clang-ppc64be-linux-multistage/builds/21208/steps/ninja%20check%201/logs/stdio

llvm-lit: /home/buildbots/ppc64be-clang-multistage-test/clang-ppc64be-multistage/llvm/projects/compiler-rt/test/builtins/Unit/lit.cfg.py:116: fatal: builtins_source_features contains duplicates: ['librt_has_divtc3']

I'm going to turn this into a warning to unbreak the bot for now.

@joerg @rupprecht Any idea what's going on here? My CMake code jsut reads the source files used to built the builtin library. My guess is that both lib/builtins/ppc/divtc3.c and lib/builtins/divtc3.c are used to build the builtin library for powerpc. That sounds like a bug. I'd expect that to cause a linker error with multiple symbols of the same name being defined.

I think you have the right idea. From my reading:

1. All the builtins are added to GENERIC_SOURCES: e.g. divtc3 here: https://github.com/llvm/llvm-project/blob/2ca8e27bd038673b514c8452d661a413ce0d2123/compiler-rt/lib/builtins/CMakeLists.txt#L68
2. Per-arch builtins get appended to that list: e.g. for ppc/divtc3 here: https://github.com/llvm/llvm-project/blob/2ca8e27bd038673b514c8452d661a413ce0d2123/compiler-rt/lib/builtins/CMakeLists.txt#L521
3. Generic versions are later filtered out if there's a arch-specific builtin: https://github.com/llvm/llvm-project/blob/2ca8e27bd038673b514c8452d661a413ce0d2123/compiler-rt/lib/builtins/CMakeLists.txt#L607

If that's where the sources is coming from, why is it not being filtered when this cmake config looks at it? Is it not running because of the if (APPLE) before it?

(Huge caveat: I spend almost no time developing in cmake, so I don't really know what I'm looking at)

[delcypher]

Hmm this code looks a little dubious. It's modifying a list while iterating over it and I'm not sure that regex is right.

# Filter out generic versions of routines that are re-implemented in
      # architecture specific manner.  This prevents multiple definitions of the
      # same symbols, making the symbol selection non-deterministic.
      foreach (_file ${${arch}_SOURCES})
        if (${_file} MATCHES ${_arch}/*)
          get_filename_component(_name ${_file} NAME)
          string(REPLACE ".S" ".c" _cname "${_name}")
          list(REMOVE_ITEM ${arch}_SOURCES ${_cname})
        endif ()
      endforeach ()

[delcypher]

Okay I figured out the issue. The problem is with the filtering code. It assumes that architecture specific specializations have a filepath like <arch>/filename. The problem here is that for powerpc64 the <arch> is powerpc64 but the directory name used is actually ppc. I've got a fix for this which should prevent people from making the same mistake in the future.

[delcypher]

Fix for powerpc issue is now up for review: https://reviews.llvm.org/D69189

compiler-rt/test/builtins/CMakeLists.txt

if (${arch} STREQUAL "armhf")
     string(REPLACE ";" " " BUILTINS_TEST_TARGET_CFLAGS "${BUILTINS_TEST_TARGET_CFLAGS}")
   endif()
 
   if (${arch} STREQUAL "riscv32")
     list(APPEND BUILTINS_TEST_TARGET_CFLAGS -fforce-enable-int128)
     string(REPLACE ";" " " BUILTINS_TEST_TARGET_CFLAGS "${BUILTINS_TEST_TARGET_CFLAGS}")
   endif()
 
+  # Compute builtins available in library and add them as lit features.
+  if(APPLE)
+    # TODO: Support other Apple platforms.
+    set(BUILTIN_LIB_TARGET_NAME "clang_rt.builtins_${arch}_osx")
+  else()
+    set(BUILTIN_LIB_TARGET_NAME "clang_rt.builtins-${arch}")
+  endif()
+  if (NOT TARGET "${BUILTIN_LIB_TARGET_NAME}")
+    message(FATAL_ERROR "Target ${BUILTIN_LIB_TARGET_NAME} does not exist")
+  endif()
+  get_target_property(BUILTIN_LIB_SOURCES "${BUILTIN_LIB_TARGET_NAME}" SOURCES)
+  list(LENGTH BUILTIN_LIB_SOURCES BUILTIN_LIB_SOURCES_LENGTH)
+  if (BUILTIN_LIB_SOURCES_LENGTH EQUAL 0)
+    message(FATAL_ERROR "Failed to find source files for ${arch} builtin library")
+  endif()
+  set(BUILTINS_LIT_SOURCE_FEATURES "")
+  foreach (file_name ${BUILTIN_LIB_SOURCES})
+    # Strip off any directories and file extensions. This approach means we add
+    # add a single feature if there is a C source file or assembly override
+    # present in the builtin library.
+    # E.g.
+    # "hexagon/udivsi3.S" => "udivsi3"
+    # "udivsi3.c" => "udivsi3"
+    get_filename_component(FILE_NAME_FILTERED "${file_name}" NAME_WE)
+    list(APPEND BUILTINS_LIT_SOURCE_FEATURES "librt_has_${FILE_NAME_FILTERED}")
+  endforeach()
+
   string(TOUPPER ${arch} ARCH_UPPER_CASE)
   set(CONFIG_NAME ${ARCH_UPPER_CASE}${OS_NAME}Config)
   configure_lit_site_cfg(
     ${CMAKE_CURRENT_SOURCE_DIR}/Unit/lit.site.cfg.py.in
     ${CMAKE_CURRENT_BINARY_DIR}/Unit/${CONFIG_NAME}/lit.site.cfg.py
     )
   list(APPEND BUILTINS_TESTSUITES ${CMAKE_CURRENT_BINARY_DIR}/Unit/${CONFIG_NAME})
 endforeach()
 
 # TODO: Add support for running tests on iOS and iOS simulator.
 
 add_lit_testsuite(check-builtins "Running the Builtins tests"
   ${BUILTINS_TESTSUITES}
   DEPENDS ${BUILTINS_TEST_DEPS})
 set_target_properties(check-builtins PROPERTIES FOLDER "Compiler-RT Misc")

compiler-rt/test/builtins/Unit/absvdi2_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_absvdi2
 //===-- absvdi2_test.c - Test __absvdi2 -----------------------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//
 //

compiler-rt/test/builtins/Unit/absvsi2_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_absvsi2
 //===-- absvsi2_test.c - Test __absvsi2 -----------------------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//
 //

compiler-rt/test/builtins/Unit/absvti2_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_absvti2
 // REQUIRES: int128
 //===-- absvti2_test.c - Test __absvti2 -----------------------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//

compiler-rt/test/builtins/Unit/adddf3vfp_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_adddf3vfp
 //===-- adddf3vfp_test.c - Test __adddf3vfp -------------------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//
 //

compiler-rt/test/builtins/Unit/addsf3vfp_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_addsf3vfp
 //===-- addsf3vfp_test.c - Test __addsf3vfp -------------------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//
 //

compiler-rt/test/builtins/Unit/addtf3_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_addtf3
 //===--------------- addtf3_test.c - Test __addtf3 ------------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//
 //

compiler-rt/test/builtins/Unit/addvdi3_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_addvdi3
 //===-- addvdi3_test.c - Test __addvdi3 -----------------------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//
 //

compiler-rt/test/builtins/Unit/addvsi3_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_addvsi3
 //===-- addvsi3_test.c - Test __addvsi3 -----------------------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//
 //

compiler-rt/test/builtins/Unit/addvti3_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_addvti3
 // REQUIRES: int128
 //===-- addvti3_test.c - Test __addvti3 -----------------------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//

compiler-rt/test/builtins/Unit/ashldi3_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_ashldi3
 //===-- ashldi3_test.c - Test __ashldi3 -----------------------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//
 //

compiler-rt/test/builtins/Unit/ashlti3_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_ashlti3
 // REQUIRES: int128
 //===-- ashlti3_test.c - Test __ashlti3 -----------------------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//

compiler-rt/test/builtins/Unit/ashrdi3_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_ashrdi3
 //===-- ashrdi3_test.c - Test __ashrdi3 -----------------------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//
 //

compiler-rt/test/builtins/Unit/ashrti3_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_ashrti3
 // REQUIRES: int128
 //===-- ashrti3_test.c - Test __ashrti3 -----------------------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//

compiler-rt/test/builtins/Unit/bswapdi2_test.c

 // UNSUPPORTED: armv6m-target-arch
 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_bswapdi2
 //===-- bswapdi2_test.c - Test __bswapdi2 ---------------------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//
 //

compiler-rt/test/builtins/Unit/bswapsi2_test.c

 // UNSUPPORTED: armv6m-target-arch
 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_bswapsi2
 //===-- bswapsi2_test.c - Test __bswapsi2 ---------------------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//
 //

compiler-rt/test/builtins/Unit/clear_cache_test.c

 // REQUIRES: native-run
 // UNSUPPORTED: arm, aarch64
 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_clear_cache
 //===-- clear_cache_test.c - Test clear_cache -----------------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//
 

compiler-rt/test/builtins/Unit/clzdi2_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_clzdi2
 //===-- clzdi2_test.c - Test __clzdi2 -------------------------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//
 //

compiler-rt/test/builtins/Unit/clzsi2_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_clzsi2
 //===-- clzsi2_test.c - Test __clzsi2 -------------------------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//
 //

compiler-rt/test/builtins/Unit/clzti2_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_clzti2
 // REQUIRES: int128
 //===-- clzti2_test.c - Test __clzti2 -------------------------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//

compiler-rt/test/builtins/Unit/cmpdi2_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_cmpdi2
 //===-- cmpdi2_test.c - Test __cmpdi2 -------------------------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//
 //

compiler-rt/test/builtins/Unit/cmpti2_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_cmpti2
 // REQUIRES: int128
 //===-- cmpti2_test.c - Test __cmpti2 -------------------------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//

compiler-rt/test/builtins/Unit/comparedf2_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_comparedf2
 
 //===-- cmpdf2_test.c - Test __cmpdf2 -------------------------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//

compiler-rt/test/builtins/Unit/comparesf2_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_comparesf2
 
 //===-- cmpsf2_test.c - Test __cmpsf2 -------------------------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//

compiler-rt/test/builtins/Unit/cpu_model_test.c

 // FIXME: XFAIL the test because it is expected to return non-zero value.
 // XFAIL: *
 // REQUIRES: x86-target-arch
 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_cpu_model
 //===-- cpu_model_test.c - Test __builtin_cpu_supports --------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//
 //

compiler-rt/test/builtins/Unit/ctzdi2_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_ctzdi2
 //===-- ctzdi2_test.c - Test __ctzdi2 -------------------------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//
 //

compiler-rt/test/builtins/Unit/ctzsi2_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_ctzsi2
 //===-- ctzsi2_test.c - Test __ctzsi2 -------------------------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//
 //

compiler-rt/test/builtins/Unit/ctzti2_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_ctzti2
 // REQUIRES: int128
 //===-- ctzti2_test.c - Test __ctzti2 -------------------------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//

compiler-rt/test/builtins/Unit/divdc3_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_divdc3
 //===-- divdc3_test.c - Test __divdc3 -------------------------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//
 //

compiler-rt/test/builtins/Unit/divdf3_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_divdf3
 //===--------------- divdf3_test.c - Test __divdf3 ------------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//
 //

compiler-rt/test/builtins/Unit/divdf3vfp_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_divdf3vfp
 //===-- divdf3vfp_test.c - Test __divdf3vfp -------------------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//
 //

compiler-rt/test/builtins/Unit/divdi3_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_divdi3
 //===-- divdi3_test.c - Test __divdi3 -------------------------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//
 //

compiler-rt/test/builtins/Unit/divmodsi4_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_divmodsi4
 //===-- divmodsi4_test.c - Test __divmodsi4 -------------------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//
 //

compiler-rt/test/builtins/Unit/divsc3_test.c

 // RUN: %clang_builtins %s %librt -lm -o %t && %run %t
+// REQUIRES: librt_has_divsc3
 //===-- divsc3_test.c - Test __divsc3 -------------------------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//
 //

compiler-rt/test/builtins/Unit/divsf3_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_divsf3
 //===--------------- divsf3_test.c - Test __divsf3 ------------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//
 //

compiler-rt/test/builtins/Unit/divsf3vfp_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_divsf3vfp
 //===-- divsf3vfp_test.c - Test __divsf3vfp -------------------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//
 //

compiler-rt/test/builtins/Unit/divsi3_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_divsi3
 //===-- divsi3_test.c - Test __divsi3 -------------------------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//
 //

compiler-rt/test/builtins/Unit/divtc3_test.c

 // RUN: %clang_builtins %s %librt -lm -o %t && %run %t
+// REQUIRES: librt_has_divtc3
 //
 // 32-bit: Bug 42493, 64-bit: Bug 42496
 // XFAIL: sparc
 //
 //===-- divtc3_test.c - Test __divtc3 -------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.

compiler-rt/test/builtins/Unit/divtf3_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_divtf3
 //===--------------- divtf3_test.c - Test __divtf3 ------------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//
 //

compiler-rt/test/builtins/Unit/divti3_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_divti3
 // REQUIRES: int128
 //===-- divti3_test.c - Test __divti3 -------------------------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//

compiler-rt/test/builtins/Unit/divxc3_test.c

 // RUN: %clang_builtins %s %librt -lm -o %t && %run %t
+// REQUIRES: librt_has_divxc3
 // REQUIRES: x86-target-arch
 // UNSUPPORTED: powerpc64
 //===-- divxc3_test.c - Test __divxc3 -------------------------------------===//
 //
 // 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
 //

compiler-rt/test/builtins/Unit/enable_execute_stack_test.c

 // REQUIRES: native-run
 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_enable_execute_stack
 //===-- enable_execute_stack_test.c - Test __enable_execute_stack ----------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//
 

compiler-rt/test/builtins/Unit/eqdf2vfp_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_eqdf2vfp
 
 //===-- eqdf2vfp_test.c - Test __eqdf2vfp ---------------------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//

compiler-rt/test/builtins/Unit/eqsf2vfp_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_eqsf2vfp
 
 //===-- eqsf2vfp_test.c - Test __eqsf2vfp ---------------------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//

compiler-rt/test/builtins/Unit/eqtf2_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_comparetf2
 //===------------ eqtf2_test.c - Test __eqtf2------------------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//
 //

compiler-rt/test/builtins/Unit/extenddftf2_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_extenddftf2
 //===--------------- extenddftf2_test.c - Test __extenddftf2 --------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//
 //

compiler-rt/test/builtins/Unit/extendhfsf2_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_extendhfsf2
 //===--------------- extendhfsf2_test.c - Test __extendhfsf2 --------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//
 //

compiler-rt/test/builtins/Unit/extendsfdf2vfp_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_extendsfdf2vfp
 //===-- extendsfdf2vfp_test.c - Test __extendsfdf2vfp ---------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//
 //

compiler-rt/test/builtins/Unit/extendsftf2_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_extendsftf2
 //===--------------- extendsftf2_test.c - Test __extendsftf2 --------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//
 //

compiler-rt/test/builtins/Unit/ffsdi2_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_ffsdi2
 //===-- ffsdi2_test.c - Test __ffsdi2 -------------------------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//
 //

compiler-rt/test/builtins/Unit/ffssi2_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_ffssi2
 //===-- ffssi2_test.c - Test __ffssi2 -------------------------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//
 //

compiler-rt/test/builtins/Unit/ffsti2_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_ffsti2
 // REQUIRES: int128
 //===-- ffsti2_test.c - Test __ffsti2 -------------------------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//

compiler-rt/test/builtins/Unit/fixdfdi_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_fixdfdi
 //===-- fixdfdi_test.c - Test __fixdfdi -----------------------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//
 //

compiler-rt/test/builtins/Unit/fixdfsivfp_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_fixdfsivfp
 
 //===-- fixdfsivfp_test.c - Test __fixdfsivfp -----------------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//

compiler-rt/test/builtins/Unit/fixdfti_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_fixdfti
 // REQUIRES: int128
 //===-- fixdfti_test.c - Test __fixdfti -----------------------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//

compiler-rt/test/builtins/Unit/fixsfdi_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_fixsfdi
 //===-- fixsfdi_test.c - Test __fixsfdi -----------------------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//
 //

compiler-rt/test/builtins/Unit/fixsfsivfp_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_fixsfsivfp
 
 //===-- fixsfsivfp_test.c - Test __fixsfsivfp -----------------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//

compiler-rt/test/builtins/Unit/fixsfti_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_fixsfti
 // REQUIRES: int128
 //===-- fixsfti_test.c - Test __fixsfti -----------------------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//

compiler-rt/test/builtins/Unit/fixtfdi_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_fixtfdi
 //===--------------- fixtfdi_test.c - Test __fixtfdi ----------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//
 //

compiler-rt/test/builtins/Unit/fixtfsi_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_fixtfsi
 //===--------------- fixtfsi_test.c - Test __fixtfsi ----------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//
 //

compiler-rt/test/builtins/Unit/fixtfti_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_fixtfti
 //===--------------- fixtfti_test.c - Test __fixtfti ----------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//
 //

compiler-rt/test/builtins/Unit/fixunsdfdi_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_fixunsdfdi
 //===-- fixunsdfdi_test.c - Test __fixunsdfdi -----------------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//
 //

compiler-rt/test/builtins/Unit/fixunsdfsi_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_fixunsdfsi
 //===-- fixunsdfsi_test.c - Test __fixunsdfsi -----------------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//
 //

compiler-rt/test/builtins/Unit/fixunsdfsivfp_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_fixunsdfsivfp
 //===-- fixunsdfsivfp_test.c - Test __fixunsdfsivfp -----------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//
 //

compiler-rt/test/builtins/Unit/fixunsdfti_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_fixunsdfti
 // REQUIRES: int128
 //===-- fixunsdfti_test.c - Test __fixunsdfti -----------------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//

compiler-rt/test/builtins/Unit/fixunssfdi_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_fixunssfdi
 //===-- fixunssfdi_test.c - Test __fixunssfdi -----------------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//
 //

compiler-rt/test/builtins/Unit/fixunssfsi_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_fixunssfsi
 //===-- fixunssfsi_test.c - Test __fixunssfsi -----------------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//
 //

compiler-rt/test/builtins/Unit/fixunssfsivfp_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_fixunssfsivfp
 
 //===-- fixunssfsivfp_test.c - Test __fixunssfsivfp -----------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//

compiler-rt/test/builtins/Unit/fixunssfti_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_fixunssfti
 // REQUIRES: int128
 //===-- fixunssfti_test.c - Test __fixunssfti -----------------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//

compiler-rt/test/builtins/Unit/fixunstfdi_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_fixunstfdi
 //===-- fixunstfdi_test.c - Test __fixunstfdi -----------------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//
 //

compiler-rt/test/builtins/Unit/fixunstfsi_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_fixunstfsi
 //===--------------- fixunstfsi_test.c - Test __fixunstfsi ----------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//
 //

compiler-rt/test/builtins/Unit/fixunstfti_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_fixunstfti
 //===-- fixunstfti_test.c - Test __fixunstfti -----------------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//
 //

compiler-rt/test/builtins/Unit/fixunsxfdi_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_fixunsxfdi
 //===-- fixunsxfdi_test.c - Test __fixunsxfdi -----------------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//
 //

compiler-rt/test/builtins/Unit/fixunsxfsi_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_fixunsxfsi
 //===-- fixunsxfsi_test.c - Test __fixunsxfsi -----------------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//
 //

compiler-rt/test/builtins/Unit/fixunsxfti_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_fixunsxfti
 // REQUIRES: x86-target-arch
 
 //===-- fixunsxfti_test.c - Test __fixunsxfti -----------------------------===//
 //
 // 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
 //

compiler-rt/test/builtins/Unit/fixxfdi_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_fixxfdi
 //===-- fixxfdi_test.c - Test __fixxfdi -----------------------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//
 //

compiler-rt/test/builtins/Unit/fixxfti_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_fixxfti
 // REQUIRES: x86-target-arch
 
 //===-- fixxfti_test.c - Test __fixxfti -----------------------------------===//
 //
 // 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
 //

compiler-rt/test/builtins/Unit/floatdidf_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_floatdidf
 //===-- floatdidf.c - Test __floatdidf ------------------------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//
 //

compiler-rt/test/builtins/Unit/floatdisf_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_floatdisf
 //===-- floatdisf_test.c - Test __floatdisf -------------------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//
 //

compiler-rt/test/builtins/Unit/floatditf_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_floatditf
 //===-- floatditf_test.c - Test __floatditf -------------------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//
 //

compiler-rt/test/builtins/Unit/floatdixf_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_floatdixf
 //===-- floatdixf_test.c - Test __floatdixf -------------------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//
 //

compiler-rt/test/builtins/Unit/floatsidfvfp_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_floatsidfvfp
 //===-- floatsidfvfp_test.c - Test __floatsidfvfp -------------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//
 //

compiler-rt/test/builtins/Unit/floatsisfvfp_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_floatsisfvfp
 //===-- floatsisfvfp_test.c - Test __floatsisfvfp -------------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//
 //

compiler-rt/test/builtins/Unit/floatsitf_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_floatsitf
 //===--------------- floatsitf_test.c - Test __floatsitf ------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//
 //

compiler-rt/test/builtins/Unit/floattidf_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_floattidf
 // REQUIRES: int128
 //===-- floattidf.c - Test __floattidf ------------------------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//

compiler-rt/test/builtins/Unit/floattisf_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_floattisf
 // REQUIRES: int128
 //===-- floattisf_test.c - Test __floattisf -------------------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//

compiler-rt/test/builtins/Unit/floattitf_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_floattitf
 //===-- floattitf.c - Test __floattitf ------------------------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//
 //

compiler-rt/test/builtins/Unit/floattixf_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_floattixf
 // REQUIRES: x86-target-arch
 
 //===-- floattixf.c - Test __floattixf ------------------------------------===//
 //
 // 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
 //

compiler-rt/test/builtins/Unit/floatundidf_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_floatundidf
 //===-- floatundidf_test.c - Test __floatundidf ---------------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//
 //

compiler-rt/test/builtins/Unit/floatundisf_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_floatundisf
 //===-- floatundisf_test.c - Test __floatundisf ---------------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//
 //

compiler-rt/test/builtins/Unit/floatunditf_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_floatunditf
 //===-- floatunditf_test.c - Test __floatunditf ---------------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//
 //

compiler-rt/test/builtins/Unit/floatundixf_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_floatundixf
 //===-- floatundixf_test.c - Test __floatundixf ---------------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//
 //

compiler-rt/test/builtins/Unit/floatunsitf_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_floatunsitf
 //===--------------- floatunsitf_test.c - Test __floatunsitf --------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//
 //

compiler-rt/test/builtins/Unit/floatunssidfvfp_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_floatunssidfvfp
 //===-- floatunssidfvfp_test.c - Test __floatunssidfvfp -------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//
 //

compiler-rt/test/builtins/Unit/floatunssisfvfp_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_floatunssisfvfp
 //===-- floatunssisfvfp_test.c - Test __floatunssisfvfp -------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//
 //

compiler-rt/test/builtins/Unit/floatuntidf_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_floatuntidf
 // REQUIRES: int128
 //===-- floatuntidf.c - Test __floatuntidf --------------------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//

compiler-rt/test/builtins/Unit/floatuntisf_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_floatuntisf
 //===-- floatuntisf.c - Test __floatuntisf --------------------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//
 //

compiler-rt/test/builtins/Unit/floatuntitf_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_floatuntitf
 //===-- floatuntitf.c - Test __floatuntitf --------------------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//
 //

compiler-rt/test/builtins/Unit/floatuntixf_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_floatuntixf
 // REQUIRES: x86-target-arch
 
 //===-- floatuntixf.c - Test __floatuntixf --------------------------------===//
 //
 // 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
 //

compiler-rt/test/builtins/Unit/gedf2vfp_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_gedf2vfp
 
 //===-- gedf2vfp_test.c - Test __gedf2vfp ---------------------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//

compiler-rt/test/builtins/Unit/gesf2vfp_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_gesf2vfp
 
 //===-- gesf2vfp_test.c - Test __gesf2vfp ---------------------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//

compiler-rt/test/builtins/Unit/getf2_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_comparetf2
 //===------------ getf2_test.c - Test __getf2------------------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//
 //

compiler-rt/test/builtins/Unit/gtdf2vfp_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_gtdf2vfp
 
 //===-- gtdf2vfp_test.c - Test __gtdf2vfp ---------------------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//

compiler-rt/test/builtins/Unit/gtsf2vfp_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_gtsf2vfp
 
 //===-- gtsf2vfp_test.c - Test __gtsf2vfp ---------------------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//

compiler-rt/test/builtins/Unit/gttf2_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_comparetf2
 //===------------ gttf2_test.c - Test __gttf2------------------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//
 //

compiler-rt/test/builtins/Unit/ledf2vfp_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_ledf2vfp
 
 //===-- ledf2vfp_test.c - Test __ledf2vfp ---------------------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//

compiler-rt/test/builtins/Unit/lesf2vfp_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_lesf2vfp
 
 //===-- lesf2vfp_test.c - Test __lesf2vfp ---------------------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//

compiler-rt/test/builtins/Unit/letf2_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_comparetf2
 //===------------ letf2_test.c - Test __letf2------------------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//
 //

compiler-rt/test/builtins/Unit/lit.cfg.py

 config.substitutions.append( ("%arm_call_apsr ", \
                               build_invocation(call_apsr_flags)) )
 
 # Default test suffixes.
 config.suffixes = ['.c', '.cpp']
 
 if not config.emulator:
   config.available_features.add('native-run')
+
+# Add features for available sources
+builtins_source_features = config.builtins_lit_source_features.split(';')
+# Sanity checks
+if not builtins_source_features:
+  lit_config.fatal('builtins_source_features cannot be empty')
+builtins_source_features_set = set()
+builtins_source_feature_duplicates = []
+for builtin_source_feature in builtins_source_features:
+  if len(builtin_source_feature) == 0:
+    lit_config.fatal('builtins_source_feature cannot contain empty features')
+  if builtin_source_feature not in builtins_source_features_set:
+    builtins_source_features_set.add(builtin_source_feature)
+  else:
+    builtins_source_feature_duplicates.append(builtin_source_feature)
+
+if len(builtins_source_feature_duplicates) > 0:
+  lit_config.fatal(
+    'builtins_source_features contains duplicates: {}'.format(
+      builtins_source_feature_duplicates)
+  )
+config.available_features.update(builtins_source_features)

compiler-rt/test/builtins/Unit/lit.site.cfg.py.in

 @LIT_SITE_CFG_IN_HEADER@
 
 config.name_suffix = "@BUILTINS_TEST_CONFIG_SUFFIX@"
 config.builtins_lit_source_dir = "@BUILTINS_LIT_SOURCE_DIR@/Unit"
 config.target_cflags = "@BUILTINS_TEST_TARGET_CFLAGS@"
 config.target_arch = "@BUILTINS_TEST_TARGET_ARCH@"
 config.is_msvc = @MSVC_PYBOOL@
 config.builtins_is_msvc = @BUILTINS_IS_MSVC_PYBOOL@
+config.builtins_lit_source_features = "@BUILTINS_LIT_SOURCE_FEATURES@"
+
 # Load common config for all compiler-rt lit tests.
 lit_config.load_config(config, "@COMPILER_RT_BINARY_DIR@/test/lit.common.configured")
 
 # Load tool-specific config that would do the real work.
 lit_config.load_config(config, "@BUILTINS_LIT_SOURCE_DIR@/Unit/lit.cfg.py")

compiler-rt/test/builtins/Unit/lshrdi3_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_lshrdi3
 //===-- lshrdi3_test.c - Test __lshrdi3 -----------------------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//
 //

compiler-rt/test/builtins/Unit/lshrti3_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_lshrti3
 // REQUIRES: int128
 //===-- lshrti3_test.c - Test __lshrti3 -----------------------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//

compiler-rt/test/builtins/Unit/ltdf2vfp_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_ltdf2vfp
 
 //===-- ltdf2vfp_test.c - Test __ltdf2vfp ---------------------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//

compiler-rt/test/builtins/Unit/ltsf2vfp_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_ltsf2vfp
 
 //===-- ltsf2vfp_test.c - Test __ltsf2vfp ---------------------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//

compiler-rt/test/builtins/Unit/lttf2_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_comparetf2
 //===------------ lttf2_test.c - Test __lttf2------------------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//
 //

compiler-rt/test/builtins/Unit/moddi3_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_moddi3
 //===-- moddi3_test.c - Test __moddi3 -------------------------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//
 //

compiler-rt/test/builtins/Unit/modsi3_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_modsi3
 /* ===-- modsi3_test.c - Test __modsi3 -------------------------------------===
  *
  * 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
  *
  * ===----------------------------------------------------------------------===
  *

compiler-rt/test/builtins/Unit/modti3_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_modti3
 // REQUIRES: int128
 //===-- modti3_test.c - Test __modti3 -------------------------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//

compiler-rt/test/builtins/Unit/muldc3_test.c

 // RUN: %clang_builtins %s %librt -lm -o %t && %run %t
+// REQUIRES: librt_has_muldc3
 //===-- muldc3_test.c - Test __muldc3 -------------------------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//
 //

compiler-rt/test/builtins/Unit/muldf3vfp_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_muldf3vfp
 //===-- muldf3vfp_test.c - Test __muldf3vfp -------------------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//
 //

compiler-rt/test/builtins/Unit/muldi3_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_muldi3
 //===-- muldi3_test.c - Test __muldi3 -------------------------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//
 //

compiler-rt/test/builtins/Unit/mulodi4_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_mulodi4
 //===-- mulodi4_test.c - Test __mulodi4 -----------------------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//
 //

compiler-rt/test/builtins/Unit/mulosi4_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_mulosi4
 //===-- mulosi4_test.c - Test __mulosi4 -----------------------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//
 //

compiler-rt/test/builtins/Unit/muloti4_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_muloti4
 // REQUIRES: int128
 //===-- muloti4_test.c - Test __muloti4 -----------------------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//

compiler-rt/test/builtins/Unit/mulsc3_test.c

 // RUN: %clang_builtins %s %librt -lm -o %t && %run %t
+// REQUIRES: librt_has_mulsc3
 //===-- mulsc3_test.c - Test __mulsc3 -------------------------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//
 //

compiler-rt/test/builtins/Unit/mulsf3vfp_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_mulsf3vfp
 //===-- mulsf3vfp_test.c - Test __mulsf3vfp -------------------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//
 //

compiler-rt/test/builtins/Unit/multc3_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_multc3
 //===-- multc3_test.c - Test __multc3 -------------------------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//
 //

compiler-rt/test/builtins/Unit/multf3_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_multf3
 //===--------------- multf3_test.c - Test __multf3 ------------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//
 //

compiler-rt/test/builtins/Unit/multi3_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_multi3
 // REQUIRES: int128
 //===-- multi3_test.c - Test __multi3 -------------------------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//

compiler-rt/test/builtins/Unit/mulvdi3_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_mulvdi3
 //===-- mulvdi3_test.c - Test __mulvdi3 -----------------------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//
 //

compiler-rt/test/builtins/Unit/mulvsi3_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_mulvsi3
 //===-- mulvsi3_test.c - Test __mulvsi3 -----------------------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//
 //

compiler-rt/test/builtins/Unit/mulvti3_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_mulvti3
 // REQUIRES: int128
 //===-- mulvti3_test.c - Test __mulvti3 -----------------------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//

compiler-rt/test/builtins/Unit/mulxc3_test.c

 // RUN: %clang_builtins %s %librt -lm -o %t && %run %t
+// REQUIRES: librt_has_mulxc3
 // UNSUPPORTED: powerpc64
 // REQUIRES: x86-target-arch
 //===-- mulxc3_test.c - Test __mulxc3 -------------------------------------===//
 //
 // 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
 //

compiler-rt/test/builtins/Unit/nedf2vfp_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_nedf2vfp
 
 //===-- nedf2vfp_test.c - Test __nedf2vfp ---------------------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//

compiler-rt/test/builtins/Unit/negdf2vfp_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_negdf2vfp
 //===-- negdf2vfp_test.c - Test __negdf2vfp -------------------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//
 //

compiler-rt/test/builtins/Unit/negdi2_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_negdi2
 //===-- negdi2_test.c - Test __negdi2 -------------------------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//
 //

compiler-rt/test/builtins/Unit/negsf2vfp_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_negsf2vfp
 //===-- negsf2vfp_test.c - Test __negsf2vfp -------------------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//
 //

compiler-rt/test/builtins/Unit/negti2_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_negti2
 // REQUIRES: int128
 //===-- negti2_test.c - Test __negti2 -------------------------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//

compiler-rt/test/builtins/Unit/negvdi2_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_negvdi2
 //===-- negvdi2_test.c - Test __negvdi2 -----------------------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//
 //

compiler-rt/test/builtins/Unit/negvsi2_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_negvsi2
 //===-- negvsi2_test.c - Test __negvsi2 -----------------------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//
 //

compiler-rt/test/builtins/Unit/negvti2_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_negvti2
 // REQUIRES: int128
 //===-- negvti2_test.c - Test __negvti2 -----------------------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//

compiler-rt/test/builtins/Unit/nesf2vfp_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_nesf2vfp
 
 //===-- nesf2vfp_test.c - Test __nesf2vfp ---------------------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//

compiler-rt/test/builtins/Unit/netf2_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_comparetf2
 //===------------ netf2_test.c - Test __netf2------------------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//
 //

compiler-rt/test/builtins/Unit/paritydi2_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_paritydi2
 //===-- paritydi2_test.c - Test __paritydi2 -------------------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//
 //

compiler-rt/test/builtins/Unit/paritysi2_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_paritysi2
 //===-- paritysi2_test.c - Test __paritysi2 -------------------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//
 //

compiler-rt/test/builtins/Unit/parityti2_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_parityti2
 // REQUIRES: int128
 //===-- parityti2_test.c - Test __parityti2 -------------------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//

compiler-rt/test/builtins/Unit/popcountdi2_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_popcountdi2
 //===-- popcountdi2_test.c - Test __popcountdi2 ----------------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//
 //

compiler-rt/test/builtins/Unit/popcountsi2_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_popcountsi2
 //===-- popcountsi2_test.c - Test __popcountsi2 ---------------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//
 //

compiler-rt/test/builtins/Unit/popcountti2_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_popcountti2
 // REQUIRES: int128
 //===-- popcountti2_test.c - Test __popcountti2 ----------------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//

compiler-rt/test/builtins/Unit/powidf2_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_powidf2
 //===-- powidf2_test.cpp - Test __powidf2 ---------------------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//
 //

compiler-rt/test/builtins/Unit/powisf2_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_powisf2
 //===-- powisf2_test.cpp - Test __powisf2 ---------------------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//
 //

compiler-rt/test/builtins/Unit/powitf2_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_powitf2
 //===-- powitf2_test.cpp - Test __powitf2 ---------------------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//
 //

compiler-rt/test/builtins/Unit/powixf2_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_powixf2
 // UNSUPPORTED: powerpc64
 // REQUIRES: x86-target-arch
 //===-- powixf2_test.cpp - Test __powixf2 ---------------------------------===//
 //
 // 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
 //

compiler-rt/test/builtins/Unit/subdf3vfp_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_subdf3vfp
 //===-- subdf3vfp_test.c - Test __subdf3vfp -------------------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//
 //

compiler-rt/test/builtins/Unit/subsf3vfp_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_subsf3vfp
 //===-- subsf3vfp_test.c - Test __subsf3vfp -------------------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//
 //

compiler-rt/test/builtins/Unit/subtf3_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_subtf3
 //===--------------- subtf3_test.c - Test __subtf3 ------------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//
 //

compiler-rt/test/builtins/Unit/subvdi3_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_subvdi3
 //===-- subvdi3_test.c - Test __subvdi3 -----------------------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//
 //

compiler-rt/test/builtins/Unit/subvsi3_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_subvsi3
 //===-- subvsi3_test.c - Test __subvsi3 -----------------------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//
 //

compiler-rt/test/builtins/Unit/subvti3_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_subvti3
 // REQUIRES: int128
 //===-- subvti3_test.c - Test __subvti3 -----------------------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//

compiler-rt/test/builtins/Unit/trampoline_setup_test.c

 // RUN: %clang_builtins %s %librt -fnested-functions -o %t && %run %t
+// REQUIRES: librt_has_trampoline_setup
 /* ===-- trampoline_setup_test.c - Test __trampoline_setup -----------------===
  *
  * 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
  *
  * ===----------------------------------------------------------------------===
  */

compiler-rt/test/builtins/Unit/truncdfhf2_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_truncdfhf2
 
 //===--------------- truncdfhf2_test.c - Test __truncdfhf2 ----------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//

compiler-rt/test/builtins/Unit/truncdfsf2_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_truncdfsf2
 
 //===--------------- truncdfsf2_test.c - Test __truncdfsf2 ----------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//

compiler-rt/test/builtins/Unit/truncdfsf2vfp_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_truncdfsf2vfp
 //===-- truncdfsf2vfp_test.c - Test __truncdfsf2vfp -----------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//
 //

compiler-rt/test/builtins/Unit/truncsfhf2_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_truncsfhf2
 
 //===--------------- truncsfhf2_test.c - Test __truncsfhf2 ----------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//

compiler-rt/test/builtins/Unit/trunctfdf2_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_trunctfdf2
 //===-------------- trunctfdf2_test.c - Test __trunctfdf2 -----------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//
 //

compiler-rt/test/builtins/Unit/trunctfsf2_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_trunctfsf2
 //===--------------- trunctfsf2_test.c - Test __trunctfsf2 ----------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//
 //

compiler-rt/test/builtins/Unit/ucmpdi2_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_ucmpdi2
 //===-- ucmpdi2_test.c - Test __ucmpdi2 -----------------------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//
 //

compiler-rt/test/builtins/Unit/ucmpti2_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_ucmpti2
 // REQUIRES: int128
 //===-- ucmpti2_test.c - Test __ucmpti2 -----------------------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//

compiler-rt/test/builtins/Unit/udivdi3_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_udivdi3
 //===-- udivdi3_test.c - Test __udivdi3 -----------------------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//
 //

compiler-rt/test/builtins/Unit/udivmoddi4_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_udivmoddi4
 //===-- udivmoddi4_test.c - Test __udivmoddi4 -----------------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//
 //

compiler-rt/test/builtins/Unit/udivmodsi4_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_udivmodsi4
 //===-- udivmodsi4_test.c - Test __udivmodsi4 -----------------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//
 //

compiler-rt/test/builtins/Unit/udivmodti4_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_udivmodti4
 // REQUIRES: int128
 //===-- udivmodti4_test.c - Test __udivmodti4 -----------------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//

compiler-rt/test/builtins/Unit/udivsi3_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_udivsi3
 //===-- udivsi3_test.c - Test __udivsi3 -----------------------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//
 //

compiler-rt/test/builtins/Unit/udivti3_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_udivti3
 // REQUIRES: int128
 //===-- udivti3_test.c - Test __udivti3 -----------------------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//

compiler-rt/test/builtins/Unit/umoddi3_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_umoddi3
 //===-- umoddi3_test.c - Test __umoddi3 -----------------------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//
 //

compiler-rt/test/builtins/Unit/umodsi3_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_umodsi3
 //===-- umodsi3_test.c - Test __umodsi3 -----------------------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//
 //

compiler-rt/test/builtins/Unit/umodti3_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_umodti3
 // REQUIRES: int128
 //===-- umodti3_test.c - Test __umodti3 -----------------------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//

compiler-rt/test/builtins/Unit/unorddf2vfp_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_unorddf2vfp
 
 //===-- unorddf2vfp_test.c - Test __unorddf2vfp ---------------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//

compiler-rt/test/builtins/Unit/unordsf2vfp_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_unordsf2vfp
 
 //===-- unordsf2vfp_test.c - Test __unordsf2vfp ---------------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//

compiler-rt/test/builtins/Unit/unordtf2_test.c

 // RUN: %clang_builtins %s %librt -o %t && %run %t
+// REQUIRES: librt_has_comparetf2
 //===------------ unordtf2_test.c - Test __unordtf2------------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//
 //