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Remove redundant foldMemoryOperand variants and other code clean up.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44517 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Evan Cheng
2007-12-02 08:30:39 +00:00
parent 0465fb5663
commit aee4af68ae
19 changed files with 171 additions and 257 deletions
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18
lib/CodeGen/VirtRegMap.cpp
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@ -115,7 +115,7 @@ void VirtRegMap::assignVirtReMatId(unsigned virtReg, int id) {
}
void VirtRegMap::virtFolded(unsigned VirtReg, MachineInstr *OldMI,
unsigned OpNo, MachineInstr *NewMI) {
MachineInstr *NewMI, ModRef MRInfo) {
// Move previous memory references folded to new instruction.
MI2VirtMapTy::iterator IP = MI2VirtMap.lower_bound(NewMI);
for (MI2VirtMapTy::iterator I = MI2VirtMap.lower_bound(OldMI),
@ -124,18 +124,6 @@ void VirtRegMap::virtFolded(unsigned VirtReg, MachineInstr *OldMI,
MI2VirtMap.erase(I++);
}
ModRef MRInfo;
const TargetInstrDescriptor *TID = OldMI->getInstrDescriptor();
if (TID->getOperandConstraint(OpNo, TOI::TIED_TO) != -1 ||
TID->findTiedToSrcOperand(OpNo) != -1) {
// Folded a two-address operand.
MRInfo = isModRef;
} else if (OldMI->getOperand(OpNo).isDef()) {
MRInfo = isMod;
} else {
MRInfo = isRef;
}
// add new memory reference
MI2VirtMap.insert(IP, std::make_pair(NewMI, std::make_pair(VirtReg, MRInfo)));
}
@ -830,7 +818,9 @@ bool LocalSpiller::PrepForUnfoldOpti(MachineBasicBlock &MBB,
NewMIs.clear();
int Idx = NewMI->findRegisterUseOperandIdx(VirtReg);
assert(Idx != -1);
MachineInstr *FoldedMI = MRI->foldMemoryOperand(NewMI, Idx, SS);
SmallVector<unsigned, 2> Ops;
Ops.push_back(Idx);
MachineInstr *FoldedMI = MRI->foldMemoryOperand(NewMI, Ops, SS);
if (FoldedMI) {
if (!VRM.hasPhys(UnfoldVR))
VRM.assignVirt2Phys(UnfoldVR, UnfoldPR);