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Diffstat (limited to 'test/Transforms/IndVarSimplify/2006-03-31-NegativeStride.ll')
| -rw-r--r-- | test/Transforms/IndVarSimplify/2006-03-31-NegativeStride.ll | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/test/Transforms/IndVarSimplify/2006-03-31-NegativeStride.ll b/test/Transforms/IndVarSimplify/2006-03-31-NegativeStride.ll new file mode 100644 index 0000000..1bbc631 --- /dev/null +++ b/test/Transforms/IndVarSimplify/2006-03-31-NegativeStride.ll @@ -0,0 +1,22 @@ +; PR726 +; RUN: opt < %s -indvars -S | \ +; RUN: grep {ret i32 27} + +; Make sure to compute the right exit value based on negative strides. + +define i32 @test() { +entry: + br label %cond_true + +cond_true: ; preds = %cond_true, %entry + %a.0.0 = phi i32 [ 10, %entry ], [ %tmp4, %cond_true ] ; <i32> [#uses=2] + %b.0.0 = phi i32 [ 0, %entry ], [ %tmp2, %cond_true ] ; <i32> [#uses=1] + %tmp2 = add i32 %b.0.0, %a.0.0 ; <i32> [#uses=2] + %tmp4 = add i32 %a.0.0, -1 ; <i32> [#uses=2] + %tmp = icmp sgt i32 %tmp4, 7 ; <i1> [#uses=1] + br i1 %tmp, label %cond_true, label %bb7 + +bb7: ; preds = %cond_true + ret i32 %tmp2 +} + |