bd52495518
As a follow-up to https://reviews.llvm.org/D104129, I'm cleaning up the danling probe related code in both the compiler and llvm-profgen. I'm seeing a 5% size win for the pseudo_probe section for SPEC2017 and 10% for Ciner. Certain benchmark such as 602.gcc has a 20% size win. No obvious difference seen on build time for SPEC2017 and Cinder. Reviewed By: wenlei Differential Revision: https://reviews.llvm.org/D104477
38 lines
1.3 KiB
LLVM
38 lines
1.3 KiB
LLVM
; Test after FoldValueComparisonIntoPredecessors, one dangling probe is gone
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; RUN: opt -S -passes='pseudo-probe,simplifycfg' < %s | FileCheck %s
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; CHECK: if.end80: ; preds = %if.end
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; CHECK-NEXT: call void @llvm.pseudoprobe(i64 -2281696412744416103, i64 3, i32 0, i64 -1)
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; CHECK-NOT: call void @llvm.pseudoprobe(i64 -2281696412744416103, i64 4
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define dso_local i32 @readCBPandCoeffsFromNAL(i1 %c, i32 %x, i32 %y) local_unnamed_addr {
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;
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if.end:
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br i1 %c, label %if.end80, label %if.then64
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if.then64: ; preds = %if.end
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ret i32 %y
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if.end80: ; preds = %if.end
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switch i32 %x, label %lor.lhs.false89 [
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i32 10, label %if.end172237
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i32 14, label %if.end172237
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i32 9, label %if.end172
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]
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lor.lhs.false89: ; preds = %lor.lhs.false89, %if.end80
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%cmp91 = icmp eq i32 %x, 12
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br i1 %cmp91, label %if.end172, label %lor.lhs.false89
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if.end172: ; preds = %lor.lhs.false89, %if.end80
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br label %if.end239
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if.end172237: ; preds = %if.end80, %if.end80
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br label %if.end239
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if.end239: ; preds = %if.end172237, %if.end172
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%cbp.0 = phi i32 [ 1, %if.end172237 ], [ 0, %if.end172 ]
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ret i32 %cbp.0
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}
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