1// RUN: %clang_cc1 -emit-llvm -triple x86_64-pc-linux-gnu %s -o - -std=c++11 | FileCheck %s
2
3volatile int g1;
4struct S {
5  volatile int a;
6} g2;
7
8volatile int& refcall();
9
10// CHECK: define void @_Z2f1PViPV1S
11void f1(volatile int *x, volatile S* s) {
12  // We should perform the load in these cases.
13  // CHECK: load volatile i32*
14  (*x);
15  // CHECK: load volatile i32*
16  __extension__ g1;
17  // CHECK: load volatile i32*
18  s->a;
19  // CHECK: load volatile i32*
20  g2.a;
21  // CHECK: load volatile i32*
22  s->*(&S::a);
23  // CHECK: load volatile i32*
24  // CHECK: load volatile i32*
25  x[0], 1 ? x[0] : *x;
26
27  // CHECK: load volatile i32*
28  // CHECK: load volatile i32*
29  // CHECK: load volatile i32*
30  *x ?: *x;
31
32  // CHECK: load volatile i32*
33  ({ *x; });
34
35  // CHECK-NOT: load volatile
36  // CHECK: ret
37}
38
39// CHECK: define void @_Z2f2PVi
40// CHECK-NOT: load volatile
41// CHECK: ret
42void f2(volatile int *x) {
43  // We shouldn't perform the load in these cases.
44  refcall();
45  1 ? refcall() : *x;
46}
47