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Change TargetInstrInfo::isMoveInstr to return source and destination sub-register indices as well.

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llvm-svn: 62600
This commit is contained in:
Evan Cheng
2009-01-20 19:12:24 +00:00
parent 1ce41edd8d
commit c544cb0eca
32 changed files with 161 additions and 127 deletions
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20
llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
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@@ -298,8 +298,8 @@ bool LiveIntervals::conflictsWithPhysRegDef(const LiveInterval &li,
if (index == end) break;
MachineInstr *MI = getInstructionFromIndex(index);
unsigned SrcReg, DstReg;
if (tii_->isMoveInstr(*MI, SrcReg, DstReg))
unsigned SrcReg, DstReg, SrcSubReg, DstSubReg;
if (tii_->isMoveInstr(*MI, SrcReg, DstReg, SrcSubReg, DstSubReg))
if (SrcReg == li.reg || DstReg == li.reg)
continue;
for (unsigned i = 0; i != MI->getNumOperands(); ++i) {
@@ -396,10 +396,10 @@ void LiveIntervals::handleVirtualRegisterDef(MachineBasicBlock *mbb,
defIndex = getUseIndex(MIIdx);
VNInfo *ValNo;
MachineInstr *CopyMI = NULL;
unsigned SrcReg, DstReg;
unsigned SrcReg, DstReg, SrcSubReg, DstSubReg;
if (mi->getOpcode() == TargetInstrInfo::EXTRACT_SUBREG ||
mi->getOpcode() == TargetInstrInfo::INSERT_SUBREG ||
tii_->isMoveInstr(*mi, SrcReg, DstReg))
tii_->isMoveInstr(*mi, SrcReg, DstReg, SrcSubReg, DstSubReg))
CopyMI = mi;
// Earlyclobbers move back one.
ValNo = interval.getNextValue(defIndex, CopyMI, VNInfoAllocator);
@@ -551,10 +551,10 @@ void LiveIntervals::handleVirtualRegisterDef(MachineBasicBlock *mbb,
VNInfo *ValNo;
MachineInstr *CopyMI = NULL;
unsigned SrcReg, DstReg;
unsigned SrcReg, DstReg, SrcSubReg, DstSubReg;
if (mi->getOpcode() == TargetInstrInfo::EXTRACT_SUBREG ||
mi->getOpcode() == TargetInstrInfo::INSERT_SUBREG ||
tii_->isMoveInstr(*mi, SrcReg, DstReg))
tii_->isMoveInstr(*mi, SrcReg, DstReg, SrcSubReg, DstSubReg))
CopyMI = mi;
ValNo = interval.getNextValue(defIndex, CopyMI, VNInfoAllocator);
@@ -653,10 +653,10 @@ void LiveIntervals::handleRegisterDef(MachineBasicBlock *MBB,
getOrCreateInterval(MO.getReg()));
else if (allocatableRegs_[MO.getReg()]) {
MachineInstr *CopyMI = NULL;
unsigned SrcReg, DstReg;
unsigned SrcReg, DstReg, SrcSubReg, DstSubReg;
if (MI->getOpcode() == TargetInstrInfo::EXTRACT_SUBREG ||
MI->getOpcode() == TargetInstrInfo::INSERT_SUBREG ||
tii_->isMoveInstr(*MI, SrcReg, DstReg))
tii_->isMoveInstr(*MI, SrcReg, DstReg, SrcSubReg, DstSubReg))
CopyMI = MI;
handlePhysicalRegisterDef(MBB, MI, MIIdx, MO,
getOrCreateInterval(MO.getReg()), CopyMI);
@@ -844,8 +844,8 @@ unsigned LiveIntervals::getVNInfoSourceReg(const VNInfo *VNI) const {
} else if (VNI->copy->getOpcode() == TargetInstrInfo::INSERT_SUBREG)
return VNI->copy->getOperand(2).getReg();
unsigned SrcReg, DstReg;
if (tii_->isMoveInstr(*VNI->copy, SrcReg, DstReg))
unsigned SrcReg, DstReg, SrcSubReg, DstSubReg;
if (tii_->isMoveInstr(*VNI->copy, SrcReg, DstReg, SrcSubReg, DstSubReg))
return SrcReg;
assert(0 && "Unrecognized copy instruction!");
return 0;