diff options
Diffstat (limited to 'gcc-4.9/gcc/testsuite/gcc.dg/atomic-exchange-4.c')
-rw-r--r-- | gcc-4.9/gcc/testsuite/gcc.dg/atomic-exchange-4.c | 70 |
1 files changed, 70 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/testsuite/gcc.dg/atomic-exchange-4.c b/gcc-4.9/gcc/testsuite/gcc.dg/atomic-exchange-4.c new file mode 100644 index 000000000..fc1e5081a --- /dev/null +++ b/gcc-4.9/gcc/testsuite/gcc.dg/atomic-exchange-4.c @@ -0,0 +1,70 @@ +/* Test __atomic routines for existence and proper execution on 8 byte + values with each valid memory model. */ +/* { dg-do run } */ +/* { dg-require-effective-target sync_long_long_runtime } */ +/* { dg-options "" } */ +/* { dg-options "-march=pentium" { target { { i?86-*-* x86_64-*-* } && ia32 } } } */ + +/* Test the execution of the __atomic_X builtin for a long_long. */ + +extern void abort(void); + +long long v, count, ret; + +int +main () +{ + v = 0; + count = 0; + + if (__atomic_exchange_n (&v, count + 1, __ATOMIC_RELAXED) != count) + abort (); + count++; + + if (__atomic_exchange_n (&v, count + 1, __ATOMIC_ACQUIRE) != count) + abort (); + count++; + + if (__atomic_exchange_n (&v, count + 1, __ATOMIC_RELEASE) != count) + abort (); + count++; + + if (__atomic_exchange_n (&v, count + 1, __ATOMIC_ACQ_REL) != count) + abort (); + count++; + + if (__atomic_exchange_n (&v, count + 1, __ATOMIC_SEQ_CST) != count) + abort (); + count++; + + /* Now test the generic version. */ + + count++; + + __atomic_exchange (&v, &count, &ret, __ATOMIC_RELAXED); + if (ret != count - 1 || v != count) + abort (); + count++; + + __atomic_exchange (&v, &count, &ret, __ATOMIC_ACQUIRE); + if (ret != count - 1 || v != count) + abort (); + count++; + + __atomic_exchange (&v, &count, &ret, __ATOMIC_RELEASE); + if (ret != count - 1 || v != count) + abort (); + count++; + + __atomic_exchange (&v, &count, &ret, __ATOMIC_ACQ_REL); + if (ret != count - 1 || v != count) + abort (); + count++; + + __atomic_exchange (&v, &count, &ret, __ATOMIC_SEQ_CST); + if (ret != count - 1 || v != count) + abort (); + count++; + + return 0; +} |