[PATCH] D71168: [AArch64] Save FP for leaf functions when disabling frame pointer elimination

[Fangrui Song via Phabricator via llvm-commits]

MaskRay created this revision.
Herald added subscribers: llvm-commits, jfb, atanasyan, hiraditya, kristof.beyls, arichardson, sdardis.
Herald added a project: LLVM.
MaskRay added a parent revision: D71167: [Driver] Default to -momit-leaf-frame-pointer for AArch64.

The change allows clang -mno-omit-leaf-frame-pointer to disable frame
pointer elimination. This behavior matches X86 and Mips, and also GCC
AArch64.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D71168

Files:
  llvm/lib/Target/AArch64/AArch64FrameLowering.cpp
  llvm/test/CodeGen/AArch64/GlobalISel/tail-call-no-save-fp-lr.ll
  llvm/test/CodeGen/AArch64/arm64-large-frame.ll
  llvm/test/CodeGen/AArch64/arm64-shrink-wrapping.ll
  llvm/test/CodeGen/AArch64/arm64_32.ll
  llvm/test/CodeGen/AArch64/f16-instructions.ll
  llvm/test/CodeGen/AArch64/fastcc.ll

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