diff options
Diffstat (limited to 'gcc-4.9/gcc/testsuite/gcc.dg/atomic/stdatomic-generic.c')
-rw-r--r-- | gcc-4.9/gcc/testsuite/gcc.dg/atomic/stdatomic-generic.c | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/testsuite/gcc.dg/atomic/stdatomic-generic.c b/gcc-4.9/gcc/testsuite/gcc.dg/atomic/stdatomic-generic.c new file mode 100644 index 000000000..8033c5373 --- /dev/null +++ b/gcc-4.9/gcc/testsuite/gcc.dg/atomic/stdatomic-generic.c @@ -0,0 +1,52 @@ +/* Test generic atomic routines for proper function calling. */ +/* { dg-do run } */ +/* { dg-options "-std=c11 -pedantic-errors" } */ + +#include <stdatomic.h> + +extern void abort (); +extern int memcmp (const void *, const void *, __SIZE_TYPE__); + +typedef struct test { + int array[10]; +} test_struct; + +test_struct zero = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }; +test_struct ones = { 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 }; +_Atomic test_struct a; +test_struct b; + +int size = sizeof (test_struct); +/* Test for consistency on sizes 1, 2, 4, 8, 16 and 32. */ +int +main () +{ + test_struct c; + + atomic_store_explicit (&a, zero, memory_order_relaxed); + if (memcmp (&a, &zero, size)) + abort (); + + c = atomic_exchange_explicit (&a, ones, memory_order_seq_cst); + if (memcmp (&c, &zero, size)) + abort (); + if (memcmp (&a, &ones, size)) + abort (); + + b = atomic_load_explicit (&a, memory_order_relaxed); + if (memcmp (&b, &ones, size)) + abort (); + + if (!atomic_compare_exchange_strong_explicit (&a, &b, zero, memory_order_seq_cst, memory_order_acquire)) + abort (); + if (memcmp (&a, &zero, size)) + abort (); + + if (atomic_compare_exchange_weak_explicit (&a, &b, ones, memory_order_seq_cst, memory_order_acquire)) + abort (); + if (memcmp (&b, &zero, size)) + abort (); + + return 0; +} + |