Updated the test name and added comment.

Add DataLayoutTest for UEFI target.

Addressed review comments about the inline comments.

@phosek -- Regarding the abandoning commit. I had messed up the commit splitting process earlier. Uploaded the correct set of files for this change now. Please take a look.

Update patch.

Datalayout update.

Handle UEFI64 in X86RegisterInfo for all Win64 equivalent cases except for Swift and OCL.

Uploading the backend changes correctly.

Clang Driver Changes - https://reviews.llvm.org/D159541
Current - https://reviews.llvm.org/D152206
X86 Backend changes - https://reviews.llvm.org/D159540

Splitting commit into 3 commits.

Clang Driver changes for UEFI X86_64

Minor cleanup.

Update X86 backend to use Microsoft ABI for UEFI target.

Addressed review comments.
Added "-dll" and "-tsaware:no" linker flags for UEFI.

Thank you. Abandoning this.

Compilation failures on name.data and name.size invocations without paranthesis is breaking the builds.
Can you please fix this ASAP or revert? Thank you.

Minor formatting changes.

Added subsystem and entry args. Improved driver test.

Hi! This patch seems to break some of the Fuchsia builders. Please find the URL for the failed build below:

Clean up lit test.

Improve lit test for uefi.

Set the Objectformat in the appropriate place to fix the triple string for UEFI.
Simplify the lit test for UEFI toolchain to C.

Adding a simple lit test.

Addressed comments from last reviews except for adding lit tests.

Updated commit message.

Update commit message.

Update the test. Remove unnecessary items in UEFI toolchain.

Simplifying the patch to include just the scaffolding for X86_64 platform.
Removing the predefines to be added as a separate patch.

Addressing Petr's comments. Adding buildLinker initial draft for UEFI.

Use make_unique instead of new for UEFI TargetInfo.

Not ready for review yet. Updating build files and tests.
Fixed a compile time error.

Added UEFI toolchain. Constructing linker and started a WIP UEFI toolchain to break away from MSVC toolchain.

Added tests to the new UEFI target.

Introducing a new toolchain for UEFI COFF.

Add UEFI macro.

Introducing UEFIX86_64TargetInfo.

Added changes to the Driver.cpp.
This version uses underlying MSVC toolchain to compile UEFI target introduced here.

In D130670#3728080, @jhenderson wrote:

Looks good to me.

Including clang-format fixes.

Removing braces for If block with single line code.

Addressed review comments (var name, comment removal, code style, alignment).

Updated the printProgramHeaders section to address the review comment and to fix logic flaws. Updated corresponding tests. Please take a look.

Ran clang-format to fix formatting mismatches.

Program header rendering cleanup.

Added tests that will cover the printSectionDetails() function no section header use cases.
Rendering the warning e_shstrndx == SHN_XINDEX, but the section header table is empty along with the There is no sections in the file. message.