43 lines
1.2 KiB
LLVM
43 lines
1.2 KiB
LLVM
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; RUN: opt < %s -passes=newgvn -S | FileCheck %s
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; CHECK-NOT: load
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; CHECK-NOT: phi
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define ptr @cat(ptr %s1, ...) nounwind {
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entry:
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br i1 undef, label %bb, label %bb3
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bb: ; preds = %entry
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unreachable
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bb3: ; preds = %entry
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store ptr undef, ptr undef, align 4
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br i1 undef, label %bb5, label %bb6
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bb5: ; preds = %bb3
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unreachable
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bb6: ; preds = %bb3
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br label %bb12
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bb8: ; preds = %bb12
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br i1 undef, label %bb9, label %bb10
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bb9: ; preds = %bb8
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%0 = load ptr, ptr undef, align 4 ; <ptr> [#uses=0]
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%1 = load ptr, ptr undef, align 4 ; <ptr> [#uses=0]
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br label %bb11
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bb10: ; preds = %bb8
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br label %bb11
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bb11: ; preds = %bb10, %bb9
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br label %bb12
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bb12: ; preds = %bb11, %bb6
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br i1 undef, label %bb8, label %bb13
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bb13: ; preds = %bb12
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ret ptr undef
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}
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