From 0dcd3362bd809065be1b3d5d2b45ef6117c4ad9e Mon Sep 17 00:00:00 2001
From: Evan Cheng <evan.cheng@apple.com>
Date: Fri, 17 Sep 2010 21:56:26 +0000
Subject: Fix a potential bug that can cause miscomparison with and without
 debug info.

llvm-svn: 114220
---
 llvm/lib/CodeGen/MachineCSE.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'llvm/lib/CodeGen')

diff --git a/llvm/lib/CodeGen/MachineCSE.cpp b/llvm/lib/CodeGen/MachineCSE.cpp
index 92e2299ec62..39a50d2078f 100644
--- a/llvm/lib/CodeGen/MachineCSE.cpp
+++ b/llvm/lib/CodeGen/MachineCSE.cpp
@@ -101,7 +101,7 @@ bool MachineCSE::PerformTrivialCoalescing(MachineInstr *MI,
     unsigned Reg = MO.getReg();
     if (!Reg || TargetRegisterInfo::isPhysicalRegister(Reg))
       continue;
-    if (!MRI->hasOneUse(Reg))
+    if (!MRI->hasOneNonDBGUse(Reg))
       // Only coalesce single use copies. This ensure the copy will be
       // deleted.
       continue;
-- 
cgit v1.2.3