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Make MachineCopyPropagation preserve CFG
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Authored by arsenm on May 31 2016, 8:51 PM.

Reviewers

qcolombet
MatzeB

Summary

This doesn't touch it as far as I can tell.

arsenm retitled this revision from to Make MachineCopyPropagation preserve CFG.

arsenm updated this object.

arsenm added a subscriber: llvm-commits.

Obvious goodness. LGTM.

This revision is now accepted and ready to land.Jun 1 2016, 10:48 AM

r271445

Path

Size

lib/

CodeGen/

5 lines

Show First 20 Lines • Show All 41 Lines • ▼ Show 20 Lines	class MachineCopyPropagation : public MachineFunctionPass {
const MachineRegisterInfo *MRI;		const MachineRegisterInfo *MRI;

public:		public:
static char ID; // Pass identification, replacement for typeid		static char ID; // Pass identification, replacement for typeid
MachineCopyPropagation() : MachineFunctionPass(ID) {		MachineCopyPropagation() : MachineFunctionPass(ID) {
initializeMachineCopyPropagationPass(*PassRegistry::getPassRegistry());		initializeMachineCopyPropagationPass(*PassRegistry::getPassRegistry());
}		}

		void getAnalysisUsage(AnalysisUsage &AU) const override {
		AU.setPreservesCFG();
		MachineFunctionPass::getAnalysisUsage(AU);
		}

bool runOnMachineFunction(MachineFunction &MF) override;		bool runOnMachineFunction(MachineFunction &MF) override;

MachineFunctionProperties getRequiredProperties() const override {		MachineFunctionProperties getRequiredProperties() const override {
return MachineFunctionProperties().set(		return MachineFunctionProperties().set(
MachineFunctionProperties::Property::AllVRegsAllocated);		MachineFunctionProperties::Property::AllVRegsAllocated);
}		}

private:		private:
▲ Show 20 Lines • Show All 309 Lines • Show Last 20 Lines