[all-commits] [llvm/llvm-project] 074323: [Driver] Default to -momit-leaf-frame-pointer for ...

[Fangrui Song via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: 074323c84658e51522e7d8d3d0179e53004b219c
      https://github.com/llvm/llvm-project/commit/074323c84658e51522e7d8d3d0179e53004b219c
  Author: Fangrui Song <maskray at google.com>
  Date:   2019-12-13 (Fri, 13 Dec 2019)

  Changed paths:
    M clang/lib/Driver/ToolChains/Clang.cpp
    M clang/test/Driver/cl-options.c
    M clang/test/Driver/frame-pointer-elim.c

  Log Message:
  -----------
  [Driver] Default to -momit-leaf-frame-pointer for AArch64

This matches https://gcc.gnu.org/onlinedocs/gcc/AArch64-Options.html

> -momit-leaf-frame-pointer
> -mno-omit-leaf-frame-pointer
>
>   Omit or keep the frame pointer in leaf functions. The former behavior is the default.

-mno-omit-leaf-frame-pointer is currently a no-op because
TargetOptions::DisableFramePointerElim is only considered for non-leaf
functions.

Reviewed By: efriedma

Differential Revision: https://reviews.llvm.org/D71167