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| author | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2010-07-08 22:52:47 +0000 |
|---|---|---|
| committer | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2010-07-08 22:52:47 +0000 |
| commit | 8918fb9ec1c75be9e2ee69a3a15be54d5ad3378a (patch) | |
| tree | 50e35fefc8967dfb306e7b70a174028be05985aa /lib/CodeGen/SimpleRegisterCoalescing.cpp | |
| parent | 65d5857d91e564eba1047497581201bacd983ad4 (diff) | |
| download | external_llvm-8918fb9ec1c75be9e2ee69a3a15be54d5ad3378a.zip external_llvm-8918fb9ec1c75be9e2ee69a3a15be54d5ad3378a.tar.gz external_llvm-8918fb9ec1c75be9e2ee69a3a15be54d5ad3378a.tar.bz2 | |
Revert "Fix broken isCopy handling in TrimLiveIntervalToLastUse"
This reverts commit 107921. It broke the clang self host.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107926 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/SimpleRegisterCoalescing.cpp')
| -rw-r--r-- | lib/CodeGen/SimpleRegisterCoalescing.cpp | 10 |
1 files changed, 3 insertions, 7 deletions
diff --git a/lib/CodeGen/SimpleRegisterCoalescing.cpp b/lib/CodeGen/SimpleRegisterCoalescing.cpp index 2e7e6f8..551866e 100644 --- a/lib/CodeGen/SimpleRegisterCoalescing.cpp +++ b/lib/CodeGen/SimpleRegisterCoalescing.cpp @@ -618,14 +618,10 @@ SimpleRegisterCoalescing::TrimLiveIntervalToLastUse(SlotIndex CopyIdx, // of last use. LastUse->setIsKill(); removeRange(li, LastUseIdx.getDefIndex(), LR->end, li_, tri_); - if (LastUseMI->isCopy()) { - MachineOperand &DefMO = LastUseMI->getOperand(0); - if (DefMO.getReg() == li.reg && !DefMO.getSubReg()) - DefMO.setIsDead(); - } unsigned SrcReg, DstReg, SrcSubIdx, DstSubIdx; - if (tii_->isMoveInstr(*LastUseMI, SrcReg, DstReg, SrcSubIdx, DstSubIdx) && - DstReg == li.reg && DstSubIdx == 0) { + if ((LastUseMI->isCopy() && !LastUseMI->getOperand(0).getSubReg()) || + (tii_->isMoveInstr(*LastUseMI, SrcReg, DstReg, SrcSubIdx, DstSubIdx) && + DstReg == li.reg && DstSubIdx == 0)) { // Last use is itself an identity code. int DeadIdx = LastUseMI->findRegisterDefOperandIdx(li.reg, false, false, tri_); |