1 ; RUN: opt -memcpyopt -S < %s | FileCheck %s
4 ; Memcpyopt shouldn't optimize the second memcpy using the first
5 ; because the first has a smaller size.
7 ; CHECK: call void @llvm.memcpy.p0i8.p0i8.i32(i8* %tmp, i8* getelementptr inbounds (%struct.s* @cell, i32 0, i32 0, i32 0), i32 16, i32 4, i1 false)
9 target datalayout = "e-p:32:32:32"
11 %struct.s = type { [11 x i8], i32 }
13 @.str = private constant [11 x i8] c"0123456789\00"
14 @cell = external global %struct.s
16 declare void @check(%struct.s* byval %p) nounwind
17 declare void @llvm.memcpy.p0i8.p0i8.i32(i8* nocapture, i8* nocapture, i32, i32, i1) nounwind
19 define void @foo() nounwind {
21 %agg.tmp = alloca %struct.s, align 4
22 store i32 99, i32* getelementptr inbounds (%struct.s* @cell, i32 0, i32 1), align 4
23 call void @llvm.memcpy.p0i8.p0i8.i32(i8* getelementptr inbounds (%struct.s* @cell, i32 0, i32 0, i32 0), i8* getelementptr inbounds ([11 x i8]* @.str, i32 0, i32 0), i32 11, i32 1, i1 false)
24 %tmp = getelementptr inbounds %struct.s* %agg.tmp, i32 0, i32 0, i32 0
25 call void @llvm.memcpy.p0i8.p0i8.i32(i8* %tmp, i8* getelementptr inbounds (%struct.s* @cell, i32 0, i32 0, i32 0), i32 16, i32 4, i1 false)
26 call void @check(%struct.s* byval %agg.tmp)