[all-commits] [llvm/llvm-project] 464b46: [clang][CodeGen][X86_64] Honor per-function AVX AB...

[Benjamin Luke via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 464b46a73b7592c95222cf2e64b34ffe6f2cf251
      https://github.com/llvm/llvm-project/commit/464b46a73b7592c95222cf2e64b34ffe6f2cf251
  Author: Benjamin Luke <benjamin.luke at sony.com>
  Date:   2026-07-16 (Thu, 16 Jul 2026)

  Changed paths:
    M clang/docs/ReleaseNotes.md
    M clang/include/clang/Basic/ABIVersions.def
    M clang/include/clang/Basic/LangOptions.def
    M clang/include/clang/CodeGen/CGFunctionInfo.h
    M clang/include/clang/CodeGen/CodeGenABITypes.h
    M clang/lib/CodeGen/ABIInfo.h
    M clang/lib/CodeGen/CGCUDARuntime.cpp
    M clang/lib/CodeGen/CGCall.cpp
    M clang/lib/CodeGen/CGClass.cpp
    M clang/lib/CodeGen/CGDeclCXX.cpp
    M clang/lib/CodeGen/CGExpr.cpp
    M clang/lib/CodeGen/CGExprCXX.cpp
    M clang/lib/CodeGen/CGExprComplex.cpp
    M clang/lib/CodeGen/CGHLSLRuntime.cpp
    M clang/lib/CodeGen/CGObjCRuntime.cpp
    M clang/lib/CodeGen/CGVTables.cpp
    M clang/lib/CodeGen/CodeGenABITypes.cpp
    M clang/lib/CodeGen/CodeGenFunction.cpp
    M clang/lib/CodeGen/CodeGenFunction.h
    M clang/lib/CodeGen/CodeGenTypes.h
    M clang/lib/CodeGen/ItaniumCXXABI.cpp
    M clang/lib/CodeGen/MicrosoftCXXABI.cpp
    M clang/lib/CodeGen/Targets/X86.cpp
    M clang/test/CodeGen/sysv_abi.c
    A clang/test/CodeGen/target-avx-function-abi.c
    A clang/test/CodeGenCXX/target-avx-method-abi.cpp
    M clang/unittests/CodeGen/CodeGenExternalTest.cpp
    M clang/unittests/CodeGen/TestCompiler.h

  Log Message:
  -----------
  [clang][CodeGen][X86_64] Honor per-function AVX ABI in C/C++ call paths, maintain old psABI for PlayStation. (#193298)

Fixes https://github.com/llvm/llvm-project/issues/64706

Wire per function x86 AVX ABI level into CodeGen arrangement methods so
__attribute(__target("avx"))) / __attribute(__target("avx512f"))) on
methods, ctors, and free-functions affects ABI lowering consistently.
    
Specifically:
- Added X86AVXABILevel member to CGFunctionInfo.
- Populated X86AVXABILevel member in CGFunctionInfo objects via
arrangement methods declared in CodeGenTypes.h.
- Respect CGFunctionInfo AVX Level in X86_64ABIInfo::computeInfo.
- Add/extend regression tests for:
- free-function target-attribute AVX ABI lowering
- C++ method/ctor target-attribute AVX ABI lowering
- PS4/PS5 legacy ABI behavior (no per-function AVX ABI change)

---------

Co-authored-by: Aaron Ballman <aaron at aaronballman.com>



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