diff options
author | Aldy Hernandez <aldyh@redhat.com> | 2011-11-08 03:20:30 +0000 |
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committer | Aldy Hernandez <aldyh@redhat.com> | 2011-11-08 03:20:30 +0000 |
commit | 47180e1668b0766d1e473fed8d9385c0e765285d (patch) | |
tree | 1eb48ad31d05a9ce117bedc17115de96dffa2f0b /gcc/testsuite/gcc.dg/atomic-exchange-1.c | |
parent | 80b9b1c40004ddf7dd74248b642d489384f37ace (diff) | |
parent | eb6a1d75b768b663579adeb2a50828cf679b6f12 (diff) |
* Merge from mainline rev 181122.transactional-memory
git-svn-id: https://gcc.gnu.org/svn/gcc/branches/transactional-memory@181148 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/testsuite/gcc.dg/atomic-exchange-1.c')
-rw-r--r-- | gcc/testsuite/gcc.dg/atomic-exchange-1.c | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/atomic-exchange-1.c b/gcc/testsuite/gcc.dg/atomic-exchange-1.c new file mode 100644 index 00000000000..fb78cdbca54 --- /dev/null +++ b/gcc/testsuite/gcc.dg/atomic-exchange-1.c @@ -0,0 +1,62 @@ +/* Test __atomic routines for existence and proper execution on 1 byte + values with each valid memory model. */ +/* { dg-do run } */ +/* { dg-require-effective-target sync_char_short } */ + +/* Test the execution of the __atomic_exchange_n builtin for a char. */ + +extern void abort(void); + +char v, count, ret; + +main () +{ + v = 0; + count = 0; + + if (__atomic_exchange_n (&v, count + 1, __ATOMIC_RELAXED) != count++) + abort (); + + if (__atomic_exchange_n (&v, count + 1, __ATOMIC_ACQUIRE) != count++) + abort (); + + if (__atomic_exchange_n (&v, count + 1, __ATOMIC_RELEASE) != count++) + abort (); + + if (__atomic_exchange_n (&v, count + 1, __ATOMIC_ACQ_REL) != count++) + abort (); + + if (__atomic_exchange_n (&v, count + 1, __ATOMIC_SEQ_CST) != count++) + abort (); + + /* 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; +} |