2020-12-16 05:32:50 +08:00
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; This test checks to make sure that 'br X, Dest, Dest' is folded into
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2019-04-17 12:52:47 +08:00
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; 'br Dest'
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; RUN: opt < %s -simplifycfg -S | FileCheck %s
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declare void @noop()
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; CHECK-NOT: br i1 %c2
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define i32 @test(i1 %c1, i1 %c2) {
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call void @noop( )
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br i1 %c1, label %A, label %Y
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A: ; preds = %0
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call void @noop( )
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br i1 %c2, label %X, label %X
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X: ; preds = %Y, %A, %A
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call void @noop( )
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ret i32 0
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Y: ; preds = %0
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call void @noop( )
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br label %X
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}
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