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Diffstat (limited to 'test/Analysis/BasicAA/2006-03-03-BadArraySubscript.ll')
| -rw-r--r-- | test/Analysis/BasicAA/2006-03-03-BadArraySubscript.ll | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/test/Analysis/BasicAA/2006-03-03-BadArraySubscript.ll b/test/Analysis/BasicAA/2006-03-03-BadArraySubscript.ll new file mode 100644 index 0000000000000..b8e30198e3712 --- /dev/null +++ b/test/Analysis/BasicAA/2006-03-03-BadArraySubscript.ll @@ -0,0 +1,30 @@ +; RUN: llvm-as < %s | opt -aa-eval -disable-output |& grep {2 no alias respon} +; TEST that A[1][0] may alias A[0][i]. + +define void @test(i32 %N) { +entry: + %X = alloca [3 x [3 x i32]] ; <[3 x [3 x i32]]*> [#uses=4] + %tmp.24 = icmp sgt i32 %N, 0 ; <i1> [#uses=1] + br i1 %tmp.24, label %no_exit, label %loopexit + +no_exit: ; preds = %no_exit, %entry + %i.0.0 = phi i32 [ 0, %entry ], [ %inc, %no_exit ] ; <i32> [#uses=2] + %tmp.6 = getelementptr [3 x [3 x i32]]* %X, i32 0, i32 0, i32 %i.0.0 ; <i32*> [#uses=1] + store i32 1, i32* %tmp.6 + %tmp.8 = getelementptr [3 x [3 x i32]]* %X, i32 0, i32 0, i32 0 ; <i32*> [#uses=1] + %tmp.9 = load i32* %tmp.8 ; <i32> [#uses=1] + %tmp.11 = getelementptr [3 x [3 x i32]]* %X, i32 0, i32 1, i32 0 ; <i32*> [#uses=1] + %tmp.12 = load i32* %tmp.11 ; <i32> [#uses=1] + %tmp.13 = add i32 %tmp.12, %tmp.9 ; <i32> [#uses=1] + %inc = add i32 %i.0.0, 1 ; <i32> [#uses=2] + %tmp.2 = icmp slt i32 %inc, %N ; <i1> [#uses=1] + br i1 %tmp.2, label %no_exit, label %loopexit + +loopexit: ; preds = %no_exit, %entry + %Y.0.1 = phi i32 [ 0, %entry ], [ %tmp.13, %no_exit ] ; <i32> [#uses=1] + %tmp.4 = getelementptr [3 x [3 x i32]]* %X, i32 0, i32 0 ; <[3 x i32]*> [#uses=1] + %tmp.15 = call i32 (...)* @foo( [3 x i32]* %tmp.4, i32 %Y.0.1 ) ; <i32> [#uses=0] + ret void +} + +declare i32 @foo(...) |