[all-commits] [llvm/llvm-project] 4ab76b: [AArch64][InlineAsm]Add Clang support for flag out...

[Mingming Liu via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 4ab76b77cee0e27510d5d5cb3072ee7e92d96eec
      https://github.com/llvm/llvm-project/commit/4ab76b77cee0e27510d5d5cb3072ee7e92d96eec
  Author: Mingming Liu <mingmingl at google.com>
  Date:   2023-04-27 (Thu, 27 Apr 2023)

  Changed paths:
    M clang/docs/ReleaseNotes.rst
    M clang/lib/Basic/Targets/AArch64.cpp
    M clang/lib/Basic/Targets/AArch64.h
    A clang/test/CodeGen/inline-asm-aarch64-flag-output.c
    A clang/test/Preprocessor/aarch64_asm_flag_output.c
    M clang/test/Preprocessor/init-aarch64.c
    M clang/test/Preprocessor/predefined-win-macros.c

  Log Message:
  -----------
  [AArch64][InlineAsm]Add Clang support for flag output constraints

- Mention this change in Clang release notes

Before:
- Clang emits "invalid output constraint '=@cceq' in asm" https://gcc.godbolt.org/z/b9crfEo8h

After:
- For aarch64 targets (with __aarch64__ defined), Clang validates and parses flag output constraints to generate LLVM IR.

Differential Revision: https://reviews.llvm.org/D149123