9c4c2f2472
Based ontop of D104598, which is a NFCI-ish refactoring. Here, a restriction, that only empty blocks can be merged, is lifted. Reviewed By: rnk Differential Revision: https://reviews.llvm.org/D104597
27 lines
812 B
LLVM
27 lines
812 B
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt < %s -simplifycfg -simplifycfg-require-and-preserve-domtree=1 -S -hoist-common-insts=true | FileCheck %s
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declare void @bar(i32)
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define void @test(i1 %P, i32* %Q) {
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; CHECK-LABEL: @test(
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; CHECK-NEXT: common.ret:
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; CHECK-NEXT: store i32 1, i32* [[Q:%.*]], align 4
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; CHECK-NEXT: [[A:%.*]] = load i32, i32* [[Q]], align 4
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; CHECK-NEXT: call void @bar(i32 [[A]])
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; CHECK-NEXT: ret void
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;
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br i1 %P, label %T, label %F
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T: ; preds = %0
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store i32 1, i32* %Q
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%A = load i32, i32* %Q ; <i32> [#uses=1]
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call void @bar( i32 %A )
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ret void
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F: ; preds = %0
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store i32 1, i32* %Q
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%B = load i32, i32* %Q ; <i32> [#uses=1]
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call void @bar( i32 %B )
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ret void
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}
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