From 2ed89001e14692b52ad728388268e8369e10e05a Mon Sep 17 00:00:00 2001
From: Simon Pilgrim <llvm-dev@redking.me.uk>
Date: Sat, 15 May 2021 16:13:34 +0100
Subject: [PATCH] [X86] X86CmovConverterPass::convertCmovInstsToBranches - take
 a copy of the DebugLoc not a reference as it may be deleted.

Fixes msan warning due to rG9ca2c50b3601
---
 llvm/lib/Target/X86/X86CmovConversion.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/llvm/lib/Target/X86/X86CmovConversion.cpp b/llvm/lib/Target/X86/X86CmovConversion.cpp
index d58566c20215b..a2de0dc08292c 100644
--- a/llvm/lib/Target/X86/X86CmovConversion.cpp
+++ b/llvm/lib/Target/X86/X86CmovConversion.cpp
@@ -650,7 +650,7 @@ void X86CmovConverterPass::convertCmovInstsToBranches(
 
   MachineInstr &MI = *Group.front();
   MachineInstr *LastCMOV = Group.back();
-  const DebugLoc &DL = MI.getDebugLoc();
+  DebugLoc DL = MI.getDebugLoc();
 
   X86::CondCode CC = X86::CondCode(X86::getCondFromCMov(MI));
   X86::CondCode OppCC = X86::GetOppositeBranchCondition(CC);