1; This test checks to see if scalarrepl also works when a gep with all zeroes is
2; used instead of a bitcast to prepare a memmove pointer argument. Previously,
3; this would not work when there was a vector involved in the struct, preventing
4; scalarrepl from removing the alloca below.
5
6; RUN: opt < %s -scalarrepl -S > %t
7; RUN: cat %t | not grep alloca
8target datalayout = "E-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64"
9
10%struct.two = type <{ < 2 x i8 >, i16 }>
11
12define void @main(%struct.two* %D, i16 %V) {
13entry:
14	%S = alloca %struct.two
15        %S.2 = getelementptr %struct.two, %struct.two* %S, i32 0, i32 1
16        store i16 %V, i16* %S.2
17        ; This gep is effectively a bitcast to i8*, but is sometimes generated
18        ; because the type of the first element in %struct.two is i8.
19	%tmpS = getelementptr %struct.two, %struct.two* %S, i32 0, i32 0, i32 0
20	%tmpD = bitcast %struct.two* %D to i8*
21        call void @llvm.memmove.p0i8.p0i8.i32(i8* %tmpD, i8* %tmpS, i32 4, i32 1, i1 false)
22        ret void
23}
24
25declare void @llvm.memmove.p0i8.p0i8.i32(i8* nocapture, i8* nocapture, i32, i32, i1) nounwind
26