1*67e74705SXin Li // RUN: %clang_cc1 -triple=x86_64-apple-darwin -emit-llvm -o - %s | FileCheck %s
2*67e74705SXin Li // rdar://11861085
3*67e74705SXin Li
4*67e74705SXin Li struct s {
5*67e74705SXin Li char filler [128];
6*67e74705SXin Li volatile int x;
7*67e74705SXin Li };
8*67e74705SXin Li
9*67e74705SXin Li struct s gs;
10*67e74705SXin Li
foo(void)11*67e74705SXin Li void foo (void) {
12*67e74705SXin Li struct s ls;
13*67e74705SXin Li ls = ls;
14*67e74705SXin Li gs = gs;
15*67e74705SXin Li ls = gs;
16*67e74705SXin Li }
17*67e74705SXin Li // CHECK-LABEL: define void @foo()
18*67e74705SXin Li // CHECK: %[[LS:.*]] = alloca %struct.s, align 4
19*67e74705SXin Li // CHECK-NEXT: %[[ZERO:.*]] = bitcast %struct.s* %[[LS]] to i8*
20*67e74705SXin Li // CHECK-NEXT: %[[ONE:.*]] = bitcast %struct.s* %[[LS]] to i8*
21*67e74705SXin Li // CHECK-NEXT: call void @llvm.memcpy.{{.*}}(i8* %[[ZERO]], i8* %[[ONE]], i64 132, i32 4, i1 true)
22*67e74705SXin Li // CHECK-NEXT: call void @llvm.memcpy.{{.*}}(i8* getelementptr inbounds (%struct.s, %struct.s* @gs, i32 0, i32 0, i32 0), i8* getelementptr inbounds (%struct.s, %struct.s* @gs, i32 0, i32 0, i32 0), i64 132, i32 4, i1 true)
23*67e74705SXin Li // CHECK-NEXT: %[[TWO:.*]] = bitcast %struct.s* %[[LS]] to i8*
24*67e74705SXin Li // CHECK-NEXT: call void @llvm.memcpy.{{.*}}(i8* %[[TWO]], i8* getelementptr inbounds (%struct.s, %struct.s* @gs, i32 0, i32 0, i32 0), i64 132, i32 4, i1 true)
25*67e74705SXin Li
26*67e74705SXin Li
27*67e74705SXin Li struct s1 {
28*67e74705SXin Li struct s y;
29*67e74705SXin Li };
30*67e74705SXin Li
31*67e74705SXin Li struct s1 s;
32*67e74705SXin Li
fee(void)33*67e74705SXin Li void fee (void) {
34*67e74705SXin Li s = s;
35*67e74705SXin Li s.y = gs;
36*67e74705SXin Li }
37*67e74705SXin Li // CHECK-LABEL: define void @fee()
38*67e74705SXin Li // CHECK: call void @llvm.memcpy.{{.*}}(i8* getelementptr inbounds (%struct.s1, %struct.s1* @s, i32 0, i32 0, i32 0, i32 0), i8* getelementptr inbounds (%struct.s1, %struct.s1* @s, i32 0, i32 0, i32 0, i32 0), i64 132, i32 4, i1 true)
39*67e74705SXin Li // CHECK-NEXT: call void @llvm.memcpy.{{.*}}(i8* getelementptr inbounds (%struct.s1, %struct.s1* @s, i32 0, i32 0, i32 0, i32 0), i8* getelementptr inbounds (%struct.s, %struct.s* @gs, i32 0, i32 0, i32 0), i64 132, i32 4, i1 true)
40*67e74705SXin Li
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