| /* { dg-do compile } */ |
| /* { dg-options "-O2" } */ |
| |
| extern char foo; |
| extern unsigned char bar; |
| |
| int |
| foo1 (void) |
| { |
| return __sync_fetch_and_and (&foo, ~1) & 1; |
| } |
| |
| int |
| foo2 (void) |
| { |
| return __sync_fetch_and_or (&foo, 1) & 1; |
| } |
| |
| int |
| foo3 (void) |
| { |
| return __sync_fetch_and_xor (&foo, 1) & 1; |
| } |
| |
| unsigned short |
| bar1 (void) |
| { |
| return __sync_fetch_and_and (&bar, ~1) & 1; |
| } |
| |
| unsigned short |
| bar2 (void) |
| { |
| return __sync_fetch_and_or (&bar, 1) & 1; |
| } |
| |
| unsigned short |
| bar3 (void) |
| { |
| return __sync_fetch_and_xor (&bar, 1) & 1; |
| } |
| |
| /* { dg-final { scan-assembler-times "lock;?\[ \t\]*cmpxchgb" 6 { target { x86_64-*-* i?86-*-* } } } } */ |
