diff options
Diffstat (limited to 'gcc/testsuite/gcc.target/i386/hle-cmpxchg-rel-1.c')
-rw-r--r-- | gcc/testsuite/gcc.target/i386/hle-cmpxchg-rel-1.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.target/i386/hle-cmpxchg-rel-1.c b/gcc/testsuite/gcc.target/i386/hle-cmpxchg-rel-1.c new file mode 100644 index 00000000000..85495429175 --- /dev/null +++ b/gcc/testsuite/gcc.target/i386/hle-cmpxchg-rel-1.c @@ -0,0 +1,9 @@ +/* { dg-do compile } */ +/* { dg-options "-mhle" } */ +/* { dg-final { scan-assembler "lock\[ \n\t\]+\(xrelease\|\.byte\[ \t\]+0xf3\)\[ \t\n\]+cmpxchg" } } */ + +int +hle_cmpxchg (int *p, int oldv, int newv) +{ + return __atomic_compare_exchange_n (p, &oldv, newv, 0, __ATOMIC_RELEASE | __ATOMIC_HLE_RELEASE, __ATOMIC_ACQUIRE); +} |