[all-commits] [llvm/llvm-project] 88c2af: [NFC][clang][FMV][TargetInfo] Refactor API for FMV...

[Alexandros Lamprineas via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 88c2af80fac423fc338027c007e1499333f05ddb
      https://github.com/llvm/llvm-project/commit/88c2af80fac423fc338027c007e1499333f05ddb
  Author: Alexandros Lamprineas <alexandros.lamprineas at arm.com>
  Date:   2024-11-28 (Thu, 28 Nov 2024)

  Changed paths:
    M clang/include/clang/Basic/Attr.td
    M clang/include/clang/Basic/TargetInfo.h
    M clang/lib/Basic/Targets/AArch64.cpp
    M clang/lib/Basic/Targets/AArch64.h
    M clang/lib/Basic/Targets/RISCV.cpp
    M clang/lib/Basic/Targets/RISCV.h
    M clang/lib/Basic/Targets/X86.cpp
    M clang/lib/Basic/Targets/X86.h
    M clang/lib/CodeGen/ABIInfo.cpp
    M clang/lib/CodeGen/CodeGenFunction.cpp
    M clang/lib/CodeGen/CodeGenFunction.h
    M clang/lib/CodeGen/CodeGenModule.cpp
    M llvm/include/llvm/TargetParser/AArch64TargetParser.h
    M llvm/lib/TargetParser/AArch64TargetParser.cpp

  Log Message:
  -----------
  [NFC][clang][FMV][TargetInfo] Refactor API for FMV feature priority. (#116257)

Currently we have code with target hooks in CodeGenModule shared between
X86 and AArch64 for sorting MultiVersionResolverOptions. Those are used
when generating IFunc resolvers for FMV. The RISCV target has different
criteria for sorting, therefore it repeats sorting after calling
CodeGenFunction::EmitMultiVersionResolver.

I am moving the FMV priority logic in TargetInfo, so that it can be
implemented by the TargetParser which then makes it possible to query it
from llvm. Here is an example why this is handy:
https://github.com/llvm/llvm-project/pull/87939



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