[all-commits] [llvm/llvm-project] ae1596: [AArch64] Support preserve_none calling convention...

[antangelo via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: ae1596a31a6fac2f4daafe1e256d4a5cf3742617
      https://github.com/llvm/llvm-project/commit/ae1596a31a6fac2f4daafe1e256d4a5cf3742617
  Author: antangelo <contact at antangelo.com>
  Date:   2024-06-03 (Mon, 03 Jun 2024)

  Changed paths:
    M clang/include/clang/Basic/Attr.td
    M clang/include/clang/Basic/AttrDocs.td
    M clang/lib/Basic/Targets/AArch64.cpp
    M clang/test/CodeGen/preserve-call-conv.c
    M llvm/docs/LangRef.rst
    M llvm/lib/Target/AArch64/AArch64CallingConvention.h
    M llvm/lib/Target/AArch64/AArch64CallingConvention.td
    M llvm/lib/Target/AArch64/AArch64ISelLowering.cpp
    M llvm/lib/Target/AArch64/AArch64RegisterInfo.cpp
    M llvm/lib/Target/AArch64/GISel/AArch64CallLowering.cpp
    A llvm/test/CodeGen/AArch64/dynamic-regmask-preserve-none.ll
    M llvm/test/CodeGen/AArch64/preserve.ll
    A llvm/test/CodeGen/AArch64/preserve_nonecc.ll
    A llvm/test/CodeGen/AArch64/preserve_nonecc_call.ll
    A llvm/test/CodeGen/AArch64/preserve_nonecc_musttail.ll
    A llvm/test/CodeGen/AArch64/preserve_nonecc_swift.ll

  Log Message:
  -----------
  [AArch64] Support preserve_none calling convention (#91046)

Adds AArch64 support for the `preserve_none` calling convention.
Registers X0-X7, X9-X15 and X19-X28 are caller save, and can be used to
pass arguments. Delegates to AAPCS for all other registers.

Closes #87423



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