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author | aldyh <aldyh@138bc75d-0d04-0410-961f-82ee72b054a4> | 2011-11-08 03:20:30 +0000 |
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committer | aldyh <aldyh@138bc75d-0d04-0410-961f-82ee72b054a4> | 2011-11-08 03:20:30 +0000 |
commit | 643df0593c630691fa6877cddeefdd4c3023d444 (patch) | |
tree | 1eb48ad31d05a9ce117bedc17115de96dffa2f0b /gcc/testsuite/gcc.dg/atomic-compare-exchange-1.c | |
parent | 54f3f029d816c6d1626310649adfda740e203f7b (diff) | |
parent | d5d8f1ccc6d3972dc5cfc0949e85e0b1c9e24ee0 (diff) | |
download | gcc-transactional-memory.tar.gz |
* Merge from mainline rev 181122.transactional-memory
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/transactional-memory@181148 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/testsuite/gcc.dg/atomic-compare-exchange-1.c')
-rw-r--r-- | gcc/testsuite/gcc.dg/atomic-compare-exchange-1.c | 85 |
1 files changed, 85 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/atomic-compare-exchange-1.c b/gcc/testsuite/gcc.dg/atomic-compare-exchange-1.c new file mode 100644 index 00000000000..2ac54e80887 --- /dev/null +++ b/gcc/testsuite/gcc.dg/atomic-compare-exchange-1.c @@ -0,0 +1,85 @@ +/* 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_compare_exchange_n builtin for a char. */ + +extern void abort(void); + +char v = 0; +char expected = 0; +char max = ~0; +char desired = ~0; +char zero = 0; + +#define STRONG 0 +#define WEAK 1 + +main () +{ + + if (!__atomic_compare_exchange_n (&v, &expected, max, STRONG , __ATOMIC_RELAXED, __ATOMIC_RELAXED)) + abort (); + if (expected != 0) + abort (); + + if (__atomic_compare_exchange_n (&v, &expected, 0, STRONG , __ATOMIC_ACQUIRE, __ATOMIC_RELAXED)) + abort (); + if (expected != max) + abort (); + + if (!__atomic_compare_exchange_n (&v, &expected, 0, STRONG , __ATOMIC_RELEASE, __ATOMIC_ACQUIRE)) + abort (); + if (expected != max) + abort (); + if (v != 0) + abort (); + + if (__atomic_compare_exchange_n (&v, &expected, desired, WEAK, __ATOMIC_ACQ_REL, __ATOMIC_ACQUIRE)) + abort (); + if (expected != 0) + abort (); + + if (!__atomic_compare_exchange_n (&v, &expected, desired, STRONG , __ATOMIC_SEQ_CST, __ATOMIC_SEQ_CST)) + abort (); + if (expected != 0) + abort (); + if (v != max) + abort (); + + /* Now test the generic version. */ + + v = 0; + + if (!__atomic_compare_exchange (&v, &expected, &max, STRONG, __ATOMIC_RELAXED, __ATOMIC_RELAXED)) + abort (); + if (expected != 0) + abort (); + + if (__atomic_compare_exchange (&v, &expected, &zero, STRONG , __ATOMIC_ACQUIRE, __ATOMIC_RELAXED)) + abort (); + if (expected != max) + abort (); + + if (!__atomic_compare_exchange (&v, &expected, &zero, STRONG , __ATOMIC_RELEASE, __ATOMIC_ACQUIRE)) + abort (); + if (expected != max) + abort (); + if (v != 0) + abort (); + + if (__atomic_compare_exchange (&v, &expected, &desired, WEAK, __ATOMIC_ACQ_REL, __ATOMIC_ACQUIRE)) + abort (); + if (expected != 0) + abort (); + + if (!__atomic_compare_exchange (&v, &expected, &desired, STRONG , __ATOMIC_SEQ_CST, __ATOMIC_SEQ_CST)) + abort (); + if (expected != 0) + abort (); + if (v != max) + abort (); + + return 0; +} |