commit 0dcd3362bd809065be1b3d5d2b45ef6117c4ad9e
author Evan Cheng <evan.cheng@apple.com> Fri Sep 17 21:56:26 2010 +0000
committer Evan Cheng <evan.cheng@apple.com> Fri Sep 17 21:56:26 2010 +0000
tree 5038d11856c9e181294151289c6c24c4ba2246c2
parent 4a253e5ac8aae0820da282b869871b54d57f6c38

Fix a potential bug that can cause miscomparison with and without debug info.

llvm-svn: 114220

llvm/lib/CodeGen/MachineCSE.cpp

diff --git a/llvm/lib/CodeGen/MachineCSE.cpp b/llvm/lib/CodeGen/MachineCSE.cpp
index 92e2299..39a50d2 100644
--- a/llvm/lib/CodeGen/MachineCSE.cpp
+++ b/llvm/lib/CodeGen/MachineCSE.cpp
@@ -101,7 +101,7 @@
     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;