diff --git a/test/Transforms/GVN/2008-02-12UndefLoad.ll b/test/Transforms/GVN/2008-02-12UndefLoad.ll new file mode 100644 index 00000000000..ddc10e1dc0f --- /dev/null +++ b/test/Transforms/GVN/2008-02-12UndefLoad.ll @@ -0,0 +1,19 @@ +; RUN: llvm-as < %s | opt -gvn | llvm-dis | not grep load + +%struct.anon = type { i32, i8, i8, i8, i8 } + +define i32 @a() { +entry: + %c = alloca %struct.anon ; <%struct.anon*> [#uses=2] + %tmp = getelementptr %struct.anon* %c, i32 0, i32 0 ; [#uses=1] + %tmp1 = getelementptr i32* %tmp, i32 1 ; [#uses=2] + %tmp2 = load i32* %tmp1, align 4 ; [#uses=1] + %tmp3 = or i32 %tmp2, 11 ; [#uses=1] + %tmp4 = and i32 %tmp3, -21 ; [#uses=1] + store i32 %tmp4, i32* %tmp1, align 4 + %call = call i32 (...)* @x( %struct.anon* %c ) ; [#uses=0] + ret i32 undef +} + + +declare i32 @x(...)