; RUN: opt -memcpyopt -S < %s | FileCheck %s ; RUN: opt -passes=memcpyopt -S < %s | FileCheck %s ; rdar://8875553 ; Memcpyopt shouldn't optimize the second memcpy using the first ; because the first has a smaller size. ; CHECK: call void @llvm.memcpy.p0i8.p0i8.i32(i8* align 4 %tmp, i8* align 4 getelementptr inbounds (%struct.s, %struct.s* @cell, i32 0, i32 0, i32 0), i32 16, i1 false) target datalayout = "e-p:32:32:32" %struct.s = type { [11 x i8], i32 } @.str = private constant [11 x i8] c"0123456789\00" @cell = external global %struct.s declare void @check(%struct.s* byval %p) nounwind declare void @llvm.memcpy.p0i8.p0i8.i32(i8* nocapture, i8* nocapture, i32, i1) nounwind define void @foo() nounwind { entry: %agg.tmp = alloca %struct.s, align 4 store i32 99, i32* getelementptr inbounds (%struct.s, %struct.s* @cell, i32 0, i32 1), align 4 call void @llvm.memcpy.p0i8.p0i8.i32(i8* align 1 getelementptr inbounds (%struct.s, %struct.s* @cell, i32 0, i32 0, i32 0), i8* align 1 getelementptr inbounds ([11 x i8], [11 x i8]* @.str, i32 0, i32 0), i32 11, i1 false) %tmp = getelementptr inbounds %struct.s, %struct.s* %agg.tmp, i32 0, i32 0, i32 0 call void @llvm.memcpy.p0i8.p0i8.i32(i8* align 4 %tmp, i8* align 4 getelementptr inbounds (%struct.s, %struct.s* @cell, i32 0, i32 0, i32 0), i32 16, i1 false) call void @check(%struct.s* byval %agg.tmp) ret void }