[all-commits] [llvm/llvm-project] 63c314: [llvm-exegesis] Fix stack pointer register restora...

[Aiden Grossman via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 63c314835458211b165e48b2278800ea6d52620a
      https://github.com/llvm/llvm-project/commit/63c314835458211b165e48b2278800ea6d52620a
  Author: Aiden Grossman <agrossman154 at yahoo.com>
  Date:   2023-12-22 (Fri, 22 Dec 2023)

  Changed paths:
    M llvm/test/tools/llvm-exegesis/X86/latency/subprocess-preserved-registers.s
    M llvm/tools/llvm-exegesis/lib/Assembler.cpp

  Log Message:
  -----------
  [llvm-exegesis] Fix stack pointer register restoration

9eb80ab3787e1851be8c686651688e870b93506b changed the method for stack
pointer restoration to fix segmentation faults. However, I made a
mistake in the patch and swapped a != for a ==, which caused an
arbitrary register (the first one specified) to get restored rather than
the stack pointer specifically. This patch fixes that issue and adds
test coverage to prevent regression.