The copy instruction being coalesced will be removed, it is not a kill.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47179 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/CodeGen/SimpleRegisterCoalescing.cpp b/lib/CodeGen/SimpleRegisterCoalescing.cpp
index 0c83933..120c6fd 100644 (file)
--- a/lib/CodeGen/SimpleRegisterCoalescing.cpp
+++ b/lib/CodeGen/SimpleRegisterCoalescing.cpp
@@ -300,10 +300,10 @@ bool SimpleRegisterCoalescing::RemoveCopyByCommutingDef(LiveInterval &IntA,
     if (ULR->valno != AValNo)
       continue;
     UseMO.setReg(NewReg);
-    if (UseMO.isKill())
-      BKills.push_back(li_->getUseIndex(UseIdx)+1);
     if (UseMI == CopyMI)
       continue;
+    if (UseMO.isKill())
+      BKills.push_back(li_->getUseIndex(UseIdx)+1);
     unsigned SrcReg, DstReg;
     if (!tii_->isMoveInstr(*UseMI, SrcReg, DstReg))
       continue;