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AMDGPU: Preserve LiveIntervals in WQM
ClosedPublic

Authored by arsenm on Mar 22 2019, 7:58 AM.

Reviewers

Summary

This seems to already be done, but wasn't marked.

Note LiveIntervals is still being computed twice for the sake of this pass, which is very expensive

This revision is now accepted and ready to land.Mar 22 2019, 1:58 PM

r356922

Path

Size

lib/

Target/

AMDGPU/

2 lines

Show First 20 Lines • Show All 194 Lines • ▼ Show 20 Lines	SIWholeQuadMode() :
MachineFunctionPass(ID) { }		MachineFunctionPass(ID) { }

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

StringRef getPassName() const override { return "SI Whole Quad Mode"; }		StringRef getPassName() const override { return "SI Whole Quad Mode"; }

void getAnalysisUsage(AnalysisUsage &AU) const override {		void getAnalysisUsage(AnalysisUsage &AU) const override {
AU.addRequired<LiveIntervals>();		AU.addRequired<LiveIntervals>();
		AU.addPreserved<SlotIndexes>();
		AU.addPreserved<LiveIntervals>();
AU.setPreservesCFG();		AU.setPreservesCFG();
MachineFunctionPass::getAnalysisUsage(AU);		MachineFunctionPass::getAnalysisUsage(AU);
}		}
};		};

} // end anonymous namespace		} // end anonymous namespace

char SIWholeQuadMode::ID = 0;		char SIWholeQuadMode::ID = 0;
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