19 lines
514 B
LLVM
19 lines
514 B
LLVM
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; RUN: opt < %s -adce -simplifycfg -simplifycfg-require-and-preserve-domtree=1 | llvm-dis
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; RUN: opt < %s -passes=adce | llvm-dis
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define i32 @Test(i32 %A, i32 %B) {
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BB1:
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br label %BB4
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BB2: ; No predecessors!
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br label %BB3
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BB3: ; preds = %BB4, %BB2
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%ret = phi i32 [ %X, %BB4 ], [ %B, %BB2 ] ; <i32> [#uses=1]
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ret i32 %ret
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BB4: ; preds = %BB1
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%X = phi i32 [ %A, %BB1 ] ; <i32> [#uses=1]
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br label %BB3
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}
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