diff --git a/test/Transforms/GlobalOpt/memset.ll b/test/Transforms/GlobalOpt/memset.ll new file mode 100644 index 00000000000..442af9850c0 --- /dev/null +++ b/test/Transforms/GlobalOpt/memset.ll @@ -0,0 +1,21 @@ +; RUN: llvm-as < %s | opt -globalopt | llvm-dis | not grep internal +; both globals are write only, delete them. + +%G0 = internal global [58 x sbyte] c"asdlfkajsdlfkajsd;lfkajds;lfkjasd;flkajsd;lkfja;sdlkfjasd\00" + +%G1 = internal global [4 x int] [ int 1, int 2, int 3, int 4] + +implementation ; Functions: + +declare void %llvm.memcpy(sbyte*, sbyte*, uint, uint) +declare void %llvm.memset(sbyte*, ubyte, uint, uint) + +void %foo() { + %Blah = alloca [58 x sbyte] ; <[58 x sbyte]*> [#uses=2] + %tmp3 = cast [58 x sbyte]* %Blah to sbyte* + call void %llvm.memcpy( sbyte* cast ([4 x int]* %G1 to sbyte*), sbyte* %tmp3, uint 16, uint 1) + call void %llvm.memset( sbyte* getelementptr ([58 x sbyte]* %G0, int 0, int 0), ubyte 17, uint 58, uint 1) + ret void +} + +