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X86CallFrameOptimization.cpp - use const references where possible. NFCI.

This commit is contained in:
Simon Pilgrim 2020-09-09 16:33:19 +01:00
parent 27cd187587
commit 6e45b98934
1 changed files with 5 additions and 5 deletions
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10
llvm/lib/Target/X86/X86CallFrameOptimization.cpp
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@ -202,7 +202,7 @@ bool X86CallFrameOptimization::isProfitable(MachineFunction &MF,
Align StackAlign = TFL->getStackAlign();
int64_t Advantage = 0;
for (auto CC : CallSeqVector) {
for (const auto &CC : CallSeqVector) {
// Call sites where no parameters are passed on the stack
// do not affect the cost, since there needs to be no
// stack adjustment.
@ -265,7 +265,7 @@ bool X86CallFrameOptimization::runOnMachineFunction(MachineFunction &MF) {
if (!isProfitable(MF, CallSeqVector))
return false;
for (auto CC : CallSeqVector) {
for (const auto &CC : CallSeqVector) {
if (CC.UsePush) {
adjustCallSequence(MF, CC);
Changed = true;
@ -288,13 +288,13 @@ X86CallFrameOptimization::classifyInstruction(
case X86::AND16mi8:
case X86::AND32mi8:
case X86::AND64mi8: {
MachineOperand ImmOp = MI->getOperand(X86::AddrNumOperands);
const MachineOperand &ImmOp = MI->getOperand(X86::AddrNumOperands);
return ImmOp.getImm() == 0 ? Convert : Exit;
}
case X86::OR16mi8:
case X86::OR32mi8:
case X86::OR64mi8: {
MachineOperand ImmOp = MI->getOperand(X86::AddrNumOperands);
const MachineOperand &ImmOp = MI->getOperand(X86::AddrNumOperands);
return ImmOp.getImm() == -1 ? Convert : Exit;
}
case X86::MOV32mi:
@ -506,7 +506,7 @@ void X86CallFrameOptimization::adjustCallSequence(MachineFunction &MF,
// replace uses.
for (int Idx = (Context.ExpectedDist >> Log2SlotSize) - 1; Idx >= 0; --Idx) {
MachineBasicBlock::iterator Store = *Context.ArgStoreVector[Idx];
MachineOperand PushOp = Store->getOperand(X86::AddrNumOperands);
const MachineOperand &PushOp = Store->getOperand(X86::AddrNumOperands);
MachineBasicBlock::iterator Push = nullptr;
unsigned PushOpcode;
switch (Store->getOpcode()) {