diff options
| author | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2012-07-31 02:47:24 +0000 |
|---|---|---|
| committer | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2012-07-31 02:47:24 +0000 |
| commit | 34af6f597b09c13fba7d3a1960c0810cfc30beff (patch) | |
| tree | bfeb206153b9f5675d4caf81c23f18528e4c92ba /lib/CodeGen/RegisterCoalescer.cpp | |
| parent | 11236143173d1aedeace570ac1133d3d5dfb268e (diff) | |
Clear kill flags in removeCopyByCommutingDef().
We are extending live ranges, so kill flags are not accurate. They
aren't needed until they are recomputed after RA anyway.
<rdar://problem/11950722>
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161023 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/RegisterCoalescer.cpp')
| -rw-r--r-- | lib/CodeGen/RegisterCoalescer.cpp | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/lib/CodeGen/RegisterCoalescer.cpp b/lib/CodeGen/RegisterCoalescer.cpp index 733312fbd0..349fcde5ef 100644 --- a/lib/CodeGen/RegisterCoalescer.cpp +++ b/lib/CodeGen/RegisterCoalescer.cpp @@ -657,6 +657,8 @@ bool RegisterCoalescer::removeCopyByCommutingDef(const CoalescerPair &CP, LiveInterval::iterator ULR = IntA.FindLiveRangeContaining(UseIdx); if (ULR == IntA.end() || ULR->valno != AValNo) continue; + // Kill flags are no longer accurate. They are recomputed after RA. + UseMO.setIsKill(false); if (TargetRegisterInfo::isPhysicalRegister(NewReg)) UseMO.substPhysReg(NewReg, *TRI); else |