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// RUN: %clang_cc1 -triple=x86_64-apple-darwin -emit-llvm -o - %s | FileCheck %s
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: 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 @_Z3feev()
// 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)
struct d : s1 {
};
d gd;
void gorf(void) {
gd = gd;
}
// CHECK-LABEL: define{{.*}} void @_Z4gorfv()
// CHECK: call void @llvm.memcpy.{{.*}}(ptr align 4 @gd, ptr align 4 @gd, i64 132, i1 true)
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