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Diffstat (limited to 'test/Analysis/ScalarEvolution/2008-11-02-QuadraticCrash.ll')
| -rw-r--r-- | test/Analysis/ScalarEvolution/2008-11-02-QuadraticCrash.ll | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/test/Analysis/ScalarEvolution/2008-11-02-QuadraticCrash.ll b/test/Analysis/ScalarEvolution/2008-11-02-QuadraticCrash.ll new file mode 100644 index 000000000000..c6cb87fca140 --- /dev/null +++ b/test/Analysis/ScalarEvolution/2008-11-02-QuadraticCrash.ll @@ -0,0 +1,21 @@ +; RUN: llvm-as < %s | opt -analyze -scalar-evolution +; PR1827 + +declare void @use(i32) + +define void @foo() { +entry: + br label %loop_1 + +loop_1: ; preds = %loop_1, %entry + %a = phi i32 [ 2, %entry ], [ %b, %loop_1 ] ; <i32> [#uses=2] + %c = phi i32 [ 5, %entry ], [ %d, %loop_1 ] ; <i32> [#uses=1] + %b = add i32 %a, 1 ; <i32> [#uses=1] + %d = add i32 %c, %a ; <i32> [#uses=3] + %A = icmp ult i32 %d, 50 ; <i1> [#uses=1] + br i1 %A, label %loop_1, label %endloop + +endloop: ; preds = %loop_1 + call void @use(i32 %d) + ret void +} |