[PATCH] D124836: [AArch64] Add support for -fzero-call-used-regs

[Bill Wendling via Phabricator via cfe-commits]

void created this revision.
void added reviewers: nickdesaulniers, danielkiss, MaskRay.
Herald added subscribers: StephenFan, pengfei, hiraditya, kristof.beyls.
Herald added a project: All.
void requested review of this revision.
Herald added projects: clang, LLVM.
Herald added subscribers: llvm-commits, cfe-commits.

Support the "-fzero-call-used-regs" option on AArch64. This involves much less
specialized code than the X86 version. Most of the checks can be done with
TableGen.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D124836

Files:
  clang/include/clang/Driver/Options.td
  clang/lib/Driver/ToolChains/Clang.cpp
  llvm/lib/Target/AArch64/AArch64FrameLowering.cpp
  llvm/lib/Target/AArch64/AArch64FrameLowering.h
  llvm/lib/Target/AArch64/AArch64RegisterInfo.td
  llvm/lib/Target/X86/X86RegisterInfo.cpp
  llvm/test/CodeGen/AArch64/zero-call-used-regs.ll
  llvm/utils/TableGen/RegisterInfoEmitter.cpp

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