[all-commits] [llvm/llvm-project] af658d: [llvm-exegesis][X86] Save and restore eflags.

[Clement Courbet via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: af658d920e2b677117d52fdb83a871f2ca5a98a0
      https://github.com/llvm/llvm-project/commit/af658d920e2b677117d52fdb83a871f2ca5a98a0
  Author: Clement Courbet <courbet at google.com>
  Date:   2020-11-04 (Wed, 04 Nov 2020)

  Changed paths:
    A llvm/test/tools/llvm-exegesis/X86/uops-STD.s
    M llvm/tools/llvm-exegesis/lib/X86/Target.cpp

  Log Message:
  -----------
  [llvm-exegesis][X86] Save and restore eflags.

This is needed to benchmark instruction that touch EFLAGS (e.g. STD: set direction flag).

Differential Revision: https://reviews.llvm.org/D90742