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Update DBG_VALUEs while breaking anti dependencies.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132487 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Devang Patel
2011-06-02 21:26:52 +00:00
parent 201cfcd6de
commit e29e8e100e
8 changed files with 42 additions and 29 deletions
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15
lib/CodeGen/CriticalAntiDepBreaker.cpp
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@ -421,7 +421,8 @@ unsigned CriticalAntiDepBreaker::
BreakAntiDependencies(const std::vector<SUnit>& SUnits,
MachineBasicBlock::iterator Begin,
MachineBasicBlock::iterator End,
unsigned InsertPosIndex) {
unsigned InsertPosIndex,
DbgValueVector &DbgValues) {
// The code below assumes that there is at least one instruction,
// so just duck out immediately if the block is empty.
if (SUnits.empty()) return 0;
@ -628,14 +629,10 @@ BreakAntiDependencies(const std::vector<SUnit>& SUnits,
// as well.
const SUnit *SU = MISUnitMap[Q->second->getParent()];
if (!SU) continue;
for (unsigned i = 0, e = SU->DbgInstrList.size() ; i < e ; ++i) {
MachineInstr *DI = SU->DbgInstrList[i];
assert (DI->getNumOperands()==3 && DI->getOperand(0).isReg() &&
DI->getOperand(0).getReg()
&& "Non register dbg_value attached to SUnit!");
if (DI->getOperand(0).getReg() == AntiDepReg)
DI->getOperand(0).setReg(NewReg);
}
for (DbgValueVector::iterator DVI = DbgValues.begin(),
DVE = DbgValues.end(); DVI != DVE; ++DVI)
if (DVI->second == Q->second->getParent())
UpdateDbgValue(DVI->first, AntiDepReg, NewReg);
}
// We just went back in time and modified history; the