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Diffstat (limited to 'test/Analysis/ScalarEvolution/2009-05-09-PointerEdgeCount.ll')
-rw-r--r-- | test/Analysis/ScalarEvolution/2009-05-09-PointerEdgeCount.ll | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/test/Analysis/ScalarEvolution/2009-05-09-PointerEdgeCount.ll b/test/Analysis/ScalarEvolution/2009-05-09-PointerEdgeCount.ll new file mode 100644 index 0000000..dc7bd29 --- /dev/null +++ b/test/Analysis/ScalarEvolution/2009-05-09-PointerEdgeCount.ll @@ -0,0 +1,28 @@ +; RUN: opt < %s -analyze -scalar-evolution | grep {count is 2} +; PR3171 +target datalayout = "E-p:64:64:64-a0:0:8-f32:32:32-f64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-v64:64:64-v128:128:128" + + %struct.Foo = type { i32 } + %struct.NonPod = type { [2 x %struct.Foo] } + +define void @_Z3foov() nounwind { +entry: + %x = alloca %struct.NonPod, align 8 ; <%struct.NonPod*> [#uses=2] + %0 = getelementptr %struct.NonPod* %x, i32 0, i32 0 ; <[2 x %struct.Foo]*> [#uses=1] + %1 = getelementptr [2 x %struct.Foo]* %0, i32 1, i32 0 ; <%struct.Foo*> [#uses=1] + br label %bb1.i + +bb1.i: ; preds = %bb2.i, %entry + %.0.i = phi %struct.Foo* [ %1, %entry ], [ %4, %bb2.i ] ; <%struct.Foo*> [#uses=2] + %2 = getelementptr %struct.NonPod* %x, i32 0, i32 0, i32 0 ; <%struct.Foo*> [#uses=1] + %3 = icmp eq %struct.Foo* %.0.i, %2 ; <i1> [#uses=1] + br i1 %3, label %_ZN6NonPodD1Ev.exit, label %bb2.i + +bb2.i: ; preds = %bb1.i + %4 = getelementptr %struct.Foo* %.0.i, i32 -1 ; <%struct.Foo*> [#uses=1] + br label %bb1.i + +_ZN6NonPodD1Ev.exit: ; preds = %bb1.i + ret void +} + |