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| // RUN: %clang_cc1 -triple=x86_64-apple-darwin -emit-llvm -o - %s | FileCheck %s
| // rdar://11861085
|
| struct s {
| char filler [128];
| volatile int x;
| };
|
| struct s gs;
|
| void foo (void) {
| struct s ls;
| ls = ls;
| gs = gs;
| ls = gs;
| }
| // CHECK-LABEL: define void @_Z3foov()
| // CHECK: %[[LS:.*]] = alloca %struct.s, align 4
| // CHECK-NEXT: %[[ZERO:.*]] = bitcast %struct.s* %[[LS]] to i8*
| // CHECK-NEXT: %[[ONE:.*]] = bitcast %struct.s* %[[LS]] to i8*
| // CHECK-NEXT: call void @llvm.memcpy.{{.*}}(i8* %[[ZERO]], i8* %[[ONE]], i64 132, i32 4, i1 true)
| // 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)
| // CHECK-NEXT: %[[TWO:.*]] = bitcast %struct.s* %[[LS]] to i8*
| // 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)
|
|
| struct s1 {
| struct s y;
| };
|
| struct s1 s;
|
| void fee (void) {
| s = s;
| s.y = gs;
| }
| // CHECK-LABEL: define void @_Z3feev()
| // 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)
| // 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)
|
| struct d : s1 {
| };
|
| d gd;
|
| void gorf(void) {
| gd = gd;
| }
| // CHECK-LABEL: define void @_Z4gorfv()
| // CHECK: call void @llvm.memcpy.{{.*}}(i8* getelementptr inbounds (%struct.d, %struct.d* @gd, i32 0, i32 0, i32 0, i32 0, i32 0), i8* getelementptr inbounds (%struct.d, %struct.d* @gd, i32 0, i32 0, i32 0, i32 0, i32 0), i64 132, i32 4, i1 true)
|
|
