6502/llvm-6502
1
0
Fork 0
mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2024-12-14 11:32:34 +00:00
Code Issues Projects Releases Wiki Activity

Revert "Fix broken isCopy handling in TrimLiveIntervalToLastUse"

Browse Source 
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
This commit is contained in:
Jakob Stoklund Olesen 2010-07-08 22:52:47 +00:00
parent ac0ed5dc08
commit 21e9445952
1 changed files with 3 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
lib/CodeGen/SimpleRegisterCoalescing.cpp
View File

@ -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_);