38 lines
946 B
C
38 lines
946 B
C
// 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 @foo()
|
|
// CHECK: %[[LS:.*]] = alloca %struct.s, align 4
|
|
// CHECK-NEXT: call void @llvm.memcpy.{{.*}}(ptr align 4 %[[LS]], ptr align 4 %[[LS]], i64 132, i1 true)
|
|
// CHECK-NEXT: call void @llvm.memcpy.{{.*}}(ptr align 4 @gs, ptr align 4 @gs, i64 132, i1 true)
|
|
// CHECK-NEXT: call void @llvm.memcpy.{{.*}}(ptr align 4 %[[LS]], ptr align 4 @gs, i64 132, i1 true)
|
|
|
|
|
|
struct s1 {
|
|
struct s y;
|
|
};
|
|
|
|
struct s1 s;
|
|
|
|
void fee (void) {
|
|
s = s;
|
|
s.y = gs;
|
|
}
|
|
// CHECK-LABEL: define{{.*}} void @fee()
|
|
// CHECK: call void @llvm.memcpy.{{.*}}(ptr align 4 @s, ptr align 4 @s, i64 132, i1 true)
|
|
// CHECK-NEXT: call void @llvm.memcpy.{{.*}}(ptr align 4 @s, ptr align 4 @gs, i64 132, i1 true)
|
|
|