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| author | Evan Cheng <evan.cheng@apple.com> | 2007-12-05 09:51:10 +0000 |
|---|---|---|
| committer | Evan Cheng <evan.cheng@apple.com> | 2007-12-05 09:51:10 +0000 |
| commit | adf85906906ebf85c57c333e8209f37ef11a6c99 (patch) | |
| tree | 55b3befe185f93909e364cb2129927f51f997987 /lib/CodeGen/LiveIntervalAnalysis.cpp | |
| parent | f38d14f03e495ea98ae16bda6febbde276513294 (diff) | |
If a split live interval is spilled again, remove the kill marker on its last use.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44611 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/LiveIntervalAnalysis.cpp')
| -rw-r--r-- | lib/CodeGen/LiveIntervalAnalysis.cpp | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/lib/CodeGen/LiveIntervalAnalysis.cpp b/lib/CodeGen/LiveIntervalAnalysis.cpp index b237247f7f..b321b3fdf6 100644 --- a/lib/CodeGen/LiveIntervalAnalysis.cpp +++ b/lib/CodeGen/LiveIntervalAnalysis.cpp @@ -1165,6 +1165,7 @@ addIntervalsForSpills(const LiveInterval &li, // it's also guaranteed to be a single val# / range interval. if (vrm.getPreSplitReg(li.reg)) { vrm.setIsSplitFromReg(li.reg, 0); + vrm.removeKillPoint(li.reg); bool DefIsReMat = vrm.isReMaterialized(li.reg); Slot = vrm.getStackSlot(li.reg); assert(Slot != VirtRegMap::MAX_STACK_SLOT); @@ -1398,8 +1399,10 @@ addIntervalsForSpills(const LiveInterval &li, int UseIdx = LastUse->findRegisterUseOperandIdx(LI->reg); assert(UseIdx != -1); if (LastUse->getInstrDescriptor()-> - getOperandConstraint(UseIdx, TOI::TIED_TO) == -1) + getOperandConstraint(UseIdx, TOI::TIED_TO) == -1) { LastUse->getOperand(UseIdx).setIsKill(); + vrm.addKillPoint(LI->reg, &LastUse->getOperand(UseIdx)); + } } RetNewLIs.push_back(LI); } |