| /* Test the atomic exchange expansion, global state space. */ |
| |
| /* { dg-do compile } */ |
| /* { dg-options "-Wno-long-long" } */ |
| |
| enum memmodel |
| { |
| MEMMODEL_SEQ_CST = 5 |
| }; |
| |
| unsigned char u8; |
| unsigned short u16; |
| unsigned int u32; |
| unsigned long long int u64; |
| |
| int |
| main() |
| { |
| __atomic_exchange_n (&u8, 0, MEMMODEL_SEQ_CST); |
| __atomic_exchange_n (&u16, 0, MEMMODEL_SEQ_CST); |
| __atomic_exchange_n (&u32, 0, MEMMODEL_SEQ_CST); |
| __atomic_exchange_n (&u64, 0, MEMMODEL_SEQ_CST); |
| |
| return 0; |
| } |
| |
| /* Not ptx-native, fallback to libatomic. */ |
| /* { dg-final { scan-assembler-times "(?n)call .* __atomic_exchange_1" 1 } } */ |
| /* { dg-final { scan-assembler-times "(?n)call .* __atomic_exchange_2" 1 } } */ |
| |
| /* { dg-final { scan-assembler-times "atom.global.exch.b32" 1 } } */ |
| /* { dg-final { scan-assembler-times "atom.global.exch.b64" 1 } } */ |
| /* { dg-final { scan-assembler-times "membar.sys" 4 } } */ |
