diff options
Diffstat (limited to 'gcc-4.9/gcc/testsuite/gcc.dg/atomic-store-2.c')
-rw-r--r-- | gcc-4.9/gcc/testsuite/gcc.dg/atomic-store-2.c | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/testsuite/gcc.dg/atomic-store-2.c b/gcc-4.9/gcc/testsuite/gcc.dg/atomic-store-2.c new file mode 100644 index 000000000..c7b1e211a --- /dev/null +++ b/gcc-4.9/gcc/testsuite/gcc.dg/atomic-store-2.c @@ -0,0 +1,47 @@ +/* Test __atomic routines for existence and proper execution on 2 byte + values with each valid memory model. */ +/* { dg-do run } */ +/* { dg-require-effective-target sync_char_short } */ + +/* Test the execution of the __atomic_store_n builtin for a short. */ + +extern void abort(void); + +short v, count; + +int +main () +{ + v = 0; + count = 0; + + __atomic_store_n (&v, count + 1, __ATOMIC_RELAXED); + if (v != ++count) + abort (); + + __atomic_store_n (&v, count + 1, __ATOMIC_RELEASE); + if (v != ++count) + abort (); + + __atomic_store_n (&v, count + 1, __ATOMIC_SEQ_CST); + if (v != ++count) + abort (); + + /* Now test the generic variant. */ + count++; + + __atomic_store (&v, &count, __ATOMIC_RELAXED); + if (v != count++) + abort (); + + __atomic_store (&v, &count, __ATOMIC_RELEASE); + if (v != count++) + abort (); + + __atomic_store (&v, &count, __ATOMIC_SEQ_CST); + if (v != count) + abort (); + + return 0; +} + |