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State that CFG is preserved in 'Falkor HW Prefetch Fix Late Phase'. 

That removes some redundant recomputations from the passes pipeline.

llvm-svn: 328272
This commit is contained in:
Michael Zolotukhin 2018-03-22 23:44:40 +00:00
parent 41e8e52916
commit fab7a676c2
2 changed files with 1 additions and 2 deletions
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1
llvm/lib/Target/AArch64/AArch64FalkorHWPFFix.cpp
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@ -187,6 +187,7 @@ public:
bool runOnMachineFunction(MachineFunction &Fn) override; bool runOnMachineFunction(MachineFunction &Fn) override;
void getAnalysisUsage(AnalysisUsage &AU) const override { void getAnalysisUsage(AnalysisUsage &AU) const override {
AU.setPreservesCFG();
AU.addRequired<MachineLoopInfo>(); AU.addRequired<MachineLoopInfo>();
MachineFunctionPass::getAnalysisUsage(AU); MachineFunctionPass::getAnalysisUsage(AU);
} }

2
llvm/test/CodeGen/AArch64/O3-pipeline.ll
View File

@ -142,8 +142,6 @@
; CHECK-NEXT: MachineDominator Tree Construction ; CHECK-NEXT: MachineDominator Tree Construction
; CHECK-NEXT: Machine Natural Loop Construction ; CHECK-NEXT: Machine Natural Loop Construction
; CHECK-NEXT: Falkor HW Prefetch Fix Late Phase ; CHECK-NEXT: Falkor HW Prefetch Fix Late Phase
; CHECK-NEXT: MachineDominator Tree Construction
; CHECK-NEXT: Machine Natural Loop Construction
; CHECK-NEXT: PostRA Machine Instruction Scheduler ; CHECK-NEXT: PostRA Machine Instruction Scheduler
; CHECK-NEXT: Analyze Machine Code For Garbage Collection ; CHECK-NEXT: Analyze Machine Code For Garbage Collection
; CHECK-NEXT: Machine Block Frequency Analysis ; CHECK-NEXT: Machine Block Frequency Analysis