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Diffstat (limited to 'test/Transforms/SimplifyCFG/2008-09-17-SpeculativeHoist.ll')
| -rw-r--r-- | test/Transforms/SimplifyCFG/2008-09-17-SpeculativeHoist.ll | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/test/Transforms/SimplifyCFG/2008-09-17-SpeculativeHoist.ll b/test/Transforms/SimplifyCFG/2008-09-17-SpeculativeHoist.ll new file mode 100644 index 000000000000..b2d671da67f4 --- /dev/null +++ b/test/Transforms/SimplifyCFG/2008-09-17-SpeculativeHoist.ll @@ -0,0 +1,18 @@ +; RUN: llvm-as < %s | opt -simplifycfg -disable-output +; PR 2800 + +define void @foo() { +start: + %tmp = call i1 @bar( ) ; <i1> [#uses=4] + br i1 %tmp, label %brtrue, label %brfalse + +brtrue: ; preds = %start + %tmpnew = and i1 %tmp, %tmp ; <i1> [#uses=1] + br label %brfalse + +brfalse: ; preds = %brtrue, %start + %andandtmp.0 = phi i1 [ %tmp, %start ], [ %tmpnew, %brtrue ] ; <i1> [#uses=0] + ret void +} + +declare i1 @bar() |