diff options
Diffstat (limited to 'gcc/testsuite/gcc.target/i386/cmpxchg16b-1.c')
| -rw-r--r-- | gcc/testsuite/gcc.target/i386/cmpxchg16b-1.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.target/i386/cmpxchg16b-1.c b/gcc/testsuite/gcc.target/i386/cmpxchg16b-1.c new file mode 100644 index 000000000..fd266f5a0 --- /dev/null +++ b/gcc/testsuite/gcc.target/i386/cmpxchg16b-1.c @@ -0,0 +1,14 @@ +/* { dg-do compile } */ +/* { dg-require-effective-target lp64 } */ +/* { dg-options "-O2 -mcx16" } */ + +typedef int TItype __attribute__ ((mode (TI))); + +TItype m_128; + +void test(TItype x_128) +{ + m_128 = __sync_val_compare_and_swap (&m_128, x_128, m_128); +} + +/* { dg-final { scan-assembler "cmpxchg16b" } } */ |