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author | Ben Cheng <bccheng@google.com> | 2013-03-28 11:14:20 -0700 |
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committer | Ben Cheng <bccheng@google.com> | 2013-03-28 12:40:33 -0700 |
commit | af0c51ac87ab2a87caa03fa108f0d164987a2764 (patch) | |
tree | 4b8b470f7c5b69642fdab8d0aa1fbc148d02196b /gcc-4.8/gcc/testsuite/gcc.dg/atomic-compare-exchange-5.c | |
parent | d87cae247d39ebf4f5a6bf25c932a14d2fdb9384 (diff) | |
download | toolchain_gcc-af0c51ac87ab2a87caa03fa108f0d164987a2764.tar.gz toolchain_gcc-af0c51ac87ab2a87caa03fa108f0d164987a2764.tar.bz2 toolchain_gcc-af0c51ac87ab2a87caa03fa108f0d164987a2764.zip |
[GCC 4.8] Initial check-in of GCC 4.8.0
Change-Id: I0719d8a6d0f69b367a6ab6f10eb75622dbf12771
Diffstat (limited to 'gcc-4.8/gcc/testsuite/gcc.dg/atomic-compare-exchange-5.c')
-rw-r--r-- | gcc-4.8/gcc/testsuite/gcc.dg/atomic-compare-exchange-5.c | 86 |
1 files changed, 86 insertions, 0 deletions
diff --git a/gcc-4.8/gcc/testsuite/gcc.dg/atomic-compare-exchange-5.c b/gcc-4.8/gcc/testsuite/gcc.dg/atomic-compare-exchange-5.c new file mode 100644 index 000000000..4cc0209b3 --- /dev/null +++ b/gcc-4.8/gcc/testsuite/gcc.dg/atomic-compare-exchange-5.c @@ -0,0 +1,86 @@ +/* Test __atomic routines for existence and proper execution on 16 byte + values with each valid memory model. */ +/* { dg-do run } */ +/* { dg-require-effective-target sync_int_128_runtime } */ +/* { dg-options "-mcx16" { target { i?86-*-* x86_64-*-* } } } */ + +/* Test the execution of __atomic_compare_exchange_n builtin for an int_128. */ + +extern void abort(void); + +__int128_t v = 0; +__int128_t expected = 0; +__int128_t max = ~0; +__int128_t desired = ~0; +__int128_t 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; +} |