; NOTE: Assertions have been autogenerated by utils/update_test_checks.py ; RUN: opt -passes=memcpyopt -S < %s -verify-memoryssa | FileCheck %s ; rdar://8875553 ; Memcpyopt shouldn't optimize the second memcpy using the first ; because the first has a smaller size. 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(ptr byval(%struct.s) %p) nounwind declare void @llvm.memcpy.p0.p0.i32(ptr nocapture, ptr nocapture, i32, i1) nounwind define void @foo() nounwind { ; CHECK-LABEL: @foo( ; CHECK-NEXT: entry: ; CHECK-NEXT: [[AGG_TMP:%.*]] = alloca [[STRUCT_S:%.*]], align 4 ; CHECK-NEXT: store i32 99, ptr getelementptr inbounds ([[STRUCT_S]], ptr @cell, i32 0, i32 1), align 4 ; CHECK-NEXT: call void @llvm.memcpy.p0.p0.i32(ptr align 1 @cell, ptr align 1 @.str, i32 11, i1 false) ; CHECK-NEXT: call void @llvm.memcpy.p0.p0.i32(ptr align 4 [[AGG_TMP]], ptr align 4 @cell, i32 16, i1 false) ; CHECK-NEXT: call void @check(ptr [[AGG_TMP]]) ; CHECK-NEXT: ret void ; entry: %agg.tmp = alloca %struct.s, align 4 store i32 99, ptr getelementptr inbounds (%struct.s, ptr @cell, i32 0, i32 1), align 4 call void @llvm.memcpy.p0.p0.i32(ptr align 1 @cell, ptr align 1 @.str, i32 11, i1 false) call void @llvm.memcpy.p0.p0.i32(ptr align 4 %agg.tmp, ptr align 4 @cell, i32 16, i1 false) call void @check(ptr %agg.tmp) ret void }