1 // RUN: %clang_cc1 -triple aarch64-linux-gnu %s -emit-llvm -o /dev/null -verify
2 
3 typedef struct {
4   int a, b;
5 } IntPair;
6 
7 typedef struct {
8   long long a;
9 } LongStruct;
10 
11 typedef int __attribute__((aligned(1))) unaligned_int;
12 
13 void func(IntPair *p) {
14   IntPair res;
15   __atomic_load(p, &res, 0); // expected-warning {{misaligned atomic operation may incur significant performance penalty}}
16   __atomic_store(p, &res, 0); // expected-warning {{misaligned atomic operation may incur significant performance penalty}}
17   __atomic_fetch_add((unaligned_int *)p, 1, 2); // expected-warning {{misaligned atomic operation may incur significant performance penalty}}
18   __atomic_fetch_sub((unaligned_int *)p, 1, 3); // expected-warning {{misaligned atomic operation may incur significant performance penalty}}
19 }
20 
21 void func1(LongStruct *p) {
22   LongStruct res;
23   __atomic_load(p, &res, 0);
24   __atomic_store(p, &res, 0);
25   __atomic_fetch_add((int *)p, 1, 2);
26   __atomic_fetch_sub((int *)p, 1, 3);
27 }
28