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CodeGen: Use MachineInstr& in PostRAHazardRecognizer, NFC

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Convert a loop to a range-based for, using MachineInstr& instead of
MachineInstr* and removing an implicit conversion from iterator to
pointer.

llvm-svn: 274311
This commit is contained in:
Duncan P. N. Exon Smith 2016-07-01 00:50:29 +00:00
parent d414c8259f
commit 0a44b07c9f
1 changed files with 4 additions and 6 deletions
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10
lib/CodeGen/PostRAHazardRecognizer.cpp
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@ -79,18 +79,16 @@ bool PostRAHazardRecognizer::runOnMachineFunction(MachineFunction &Fn) {
for (auto &MBB : Fn) {
// We do not call HazardRec->reset() here to make sure we are handling noop
// hazards at the start of basic blocks.
for (MachineBasicBlock::iterator I = MBB.begin(), E = MBB.end();
I != E; ++I) {
MachineInstr *MI = I;
for (MachineInstr &MI : MBB) {
// If we need to emit noops prior to this instruction, then do so.
unsigned NumPreNoops = HazardRec->PreEmitNoops(MI);
unsigned NumPreNoops = HazardRec->PreEmitNoops(&MI);
for (unsigned i = 0; i != NumPreNoops; ++i) {
HazardRec->EmitNoop();
TII->insertNoop(MBB, I);
TII->insertNoop(MBB, MachineBasicBlock::iterator(MI));
++NumNoops;
}
HazardRec->EmitInstruction(MI);
HazardRec->EmitInstruction(&MI);
if (HazardRec->atIssueLimit()) {
HazardRec->AdvanceCycle();
}