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[MC] Split out register def/use idx calls to make debugging simpler. NFCI.

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llvm-svn: 316927
This commit is contained in:
Simon Pilgrim 2017-10-30 17:24:40 +00:00
parent bc5d093122
commit 657b601fa8
1 changed files with 4 additions and 3 deletions
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7
lib/CodeGen/MachineCombiner.cpp
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@ -161,9 +161,10 @@ MachineCombiner::getDepth(SmallVectorImpl<MachineInstr *> &InsInstrs,
assert(DefInstr &&
"There must be a definition for a new virtual register");
DepthOp = InstrDepth[II->second];
LatencyOp = TSchedModel.computeOperandLatency(
DefInstr, DefInstr->findRegisterDefOperandIdx(MO.getReg()),
InstrPtr, InstrPtr->findRegisterUseOperandIdx(MO.getReg()));
int DefIdx = DefInstr->findRegisterDefOperandIdx(MO.getReg());
int UseIdx = InstrPtr->findRegisterUseOperandIdx(MO.getReg());
LatencyOp = TSchedModel.computeOperandLatency(DefInstr, DefIdx,
InstrPtr, UseIdx);
} else {
MachineInstr *DefInstr = getOperandDef(MO);
if (DefInstr) {