2007-05-29-MemcpyPreserve.ll   [plain text]

; RUN: llvm-as < %s | opt -scalarrepl | llvm-dis | grep memcpy
; PR1421

target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64"
target triple = "i686-apple-darwin8"
	%struct.LongestMember = type { i8, i32 }
	%struct.MyString = type { i32 }
	%struct.UnionType = type { %struct.LongestMember }

define void @_Z4testP9UnionTypePS0_(%struct.UnionType* %p, %struct.UnionType** %pointerToUnion) {
entry:
	%tmp = alloca %struct.UnionType, align 8		; <%struct.UnionType*> [#uses=2]
	%tmp2 = getelementptr %struct.UnionType* %tmp, i32 0, i32 0, i32 0		; <i8*> [#uses=1]
	%tmp13 = getelementptr %struct.UnionType* %p, i32 0, i32 0, i32 0		; <i8*> [#uses=1]
	call void @llvm.memcpy.i32( i8* %tmp2, i8* %tmp13, i32 8, i32 0 )
	%tmp5 = load %struct.UnionType** %pointerToUnion		; <%struct.UnionType*> [#uses=1]
	%tmp56 = getelementptr %struct.UnionType* %tmp5, i32 0, i32 0, i32 0		; <i8*> [#uses=1]
	%tmp7 = getelementptr %struct.UnionType* %tmp, i32 0, i32 0, i32 0		; <i8*> [#uses=1]
	call void @llvm.memcpy.i32( i8* %tmp56, i8* %tmp7, i32 8, i32 0 )
	ret void
}

declare void @llvm.memcpy.i32(i8*, i8*, i32, i32)