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Update regunits in RegisterCoalescer::reMaterializeTrivialDef.

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Old code would only update physreg live intervals.

llvm-svn: 158881
This commit is contained in:
Jakob Stoklund Olesen 2012-06-21 00:09:15 +00:00
parent 73a66eeb7d
commit d23194c4ed
1 changed files with 4 additions and 6 deletions
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10
lib/CodeGen/RegisterCoalescer.cpp
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@ -797,12 +797,10 @@ bool RegisterCoalescer::reMaterializeTrivialDef(LiveInterval &SrcInt,
SlotIndex NewMIIdx = LIS->getInstructionIndex(NewMI);
for (unsigned i = 0, e = NewMIImplDefs.size(); i != e; ++i) {
unsigned reg = NewMIImplDefs[i];
LiveInterval &li = LIS->getInterval(reg);
VNInfo *DeadDefVN = li.getNextValue(NewMIIdx.getRegSlot(),
LIS->getVNInfoAllocator());
LiveRange lr(NewMIIdx.getRegSlot(), NewMIIdx.getDeadSlot(), DeadDefVN);
li.addRange(lr);
unsigned Reg = NewMIImplDefs[i];
for (MCRegUnitIterator Units(Reg, TRI); Units.isValid(); ++Units)
if (LiveInterval *LI = LIS->getCachedRegUnit(*Units))
LI->createDeadDef(NewMIIdx.getRegSlot(), LIS->getVNInfoAllocator());
}
CopyMI->eraseFromParent();