[all-commits] [llvm/llvm-project] 19834b: [LoongArch] Support sc.q instruction for 128bit cm...

[tangaac via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 19834b4623fd1e7ae5185ed76031b407c3fa7a47
      https://github.com/llvm/llvm-project/commit/19834b4623fd1e7ae5185ed76031b407c3fa7a47
  Author: tangaac <tangyan01 at loongson.cn>
  Date:   2025-01-23 (Thu, 23 Jan 2025)

  Changed paths:
    M clang/include/clang/Driver/Options.td
    M clang/lib/Basic/Targets/LoongArch.cpp
    M clang/lib/Basic/Targets/LoongArch.h
    M clang/lib/Driver/ToolChains/Arch/LoongArch.cpp
    M clang/test/Driver/loongarch-march.c
    A clang/test/Driver/loongarch-mscq.c
    M clang/test/Preprocessor/init-loongarch.c
    M llvm/include/llvm/TargetParser/LoongArchTargetParser.def
    M llvm/include/llvm/TargetParser/LoongArchTargetParser.h
    M llvm/lib/Target/LoongArch/LoongArch.td
    M llvm/lib/Target/LoongArch/LoongArchExpandAtomicPseudoInsts.cpp
    M llvm/lib/Target/LoongArch/LoongArchISelLowering.cpp
    M llvm/lib/Target/LoongArch/LoongArchInstrInfo.td
    M llvm/lib/TargetParser/Host.cpp
    M llvm/lib/TargetParser/LoongArchTargetParser.cpp
    A llvm/test/CodeGen/LoongArch/ir-instruction/atomic-cmpxchg-128.ll

  Log Message:
  -----------
  [LoongArch] Support sc.q instruction for 128bit cmpxchg operation (#116771)

Two options for clang
  -mno-scq:                Disable sc.q instruction.
  -mscq:                   Enable sc.q instruction.
The default is -mno-scq.



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