diff options
Diffstat (limited to 'gcc/testsuite/gcc.target/i386/hle-cmpxchg-acq-1.c')
| -rw-r--r-- | gcc/testsuite/gcc.target/i386/hle-cmpxchg-acq-1.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.target/i386/hle-cmpxchg-acq-1.c b/gcc/testsuite/gcc.target/i386/hle-cmpxchg-acq-1.c new file mode 100644 index 00000000000..cea7c09ae43 --- /dev/null +++ b/gcc/testsuite/gcc.target/i386/hle-cmpxchg-acq-1.c @@ -0,0 +1,9 @@ +/* { dg-do compile } */ +/* { dg-options "-march=x86-64 -mhle" } */ +/* { dg-final { scan-assembler "lock;?\[ \n\t\]+\(xacquire\|\.byte\[ \t\]+0xf2\)\[ \t\n\]+cmpxchg" } } */ + +int +hle_cmpxchg (int *p, int oldv, int newv) +{ + return __atomic_compare_exchange_n (p, &oldv, newv, 0, __ATOMIC_ACQUIRE | __ATOMIC_HLE_ACQUIRE, __ATOMIC_ACQUIRE); +} |