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author | Ben Cheng <bccheng@google.com> | 2014-03-25 22:37:19 -0700 |
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committer | Ben Cheng <bccheng@google.com> | 2014-03-25 22:37:19 -0700 |
commit | 1bc5aee63eb72b341f506ad058502cd0361f0d10 (patch) | |
tree | c607e8252f3405424ff15bc2d00aa38dadbb2518 /gcc-4.9/gcc/testsuite/gcc.dg/atomic/stdatomic-compare-exchange-3.c | |
parent | 283a0bf58fcf333c58a2a92c3ebbc41fb9eb1fdb (diff) | |
download | toolchain_gcc-1bc5aee63eb72b341f506ad058502cd0361f0d10.tar.gz toolchain_gcc-1bc5aee63eb72b341f506ad058502cd0361f0d10.tar.bz2 toolchain_gcc-1bc5aee63eb72b341f506ad058502cd0361f0d10.zip |
Initial checkin of GCC 4.9.0 from trunk (r208799).
Change-Id: I48a3c08bb98542aa215912a75f03c0890e497dba
Diffstat (limited to 'gcc-4.9/gcc/testsuite/gcc.dg/atomic/stdatomic-compare-exchange-3.c')
-rw-r--r-- | gcc-4.9/gcc/testsuite/gcc.dg/atomic/stdatomic-compare-exchange-3.c | 81 |
1 files changed, 81 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/testsuite/gcc.dg/atomic/stdatomic-compare-exchange-3.c b/gcc-4.9/gcc/testsuite/gcc.dg/atomic/stdatomic-compare-exchange-3.c new file mode 100644 index 000000000..e29784e5b --- /dev/null +++ b/gcc-4.9/gcc/testsuite/gcc.dg/atomic/stdatomic-compare-exchange-3.c @@ -0,0 +1,81 @@ +/* Test atomic_compare_exchange routines for existence and proper + execution on 2-byte values with each valid memory model. */ +/* { dg-do run } */ +/* { dg-options "-std=c11 -pedantic-errors" } */ + +#include <stdatomic.h> + +extern void abort (void); + +_Atomic int v = ATOMIC_VAR_INIT (0); +int expected = 0; +int max = ~0; +int desired = ~0; +int zero = 0; + +int +main () +{ + + if (!atomic_compare_exchange_strong_explicit (&v, &expected, max, memory_order_relaxed, memory_order_relaxed)) + abort (); + if (expected != 0) + abort (); + + if (atomic_compare_exchange_strong_explicit (&v, &expected, 0, memory_order_acquire, memory_order_relaxed)) + abort (); + if (expected != max) + abort (); + + if (!atomic_compare_exchange_strong_explicit (&v, &expected, 0, memory_order_release, memory_order_acquire)) + abort (); + if (expected != max) + abort (); + if (v != 0) + abort (); + + if (atomic_compare_exchange_weak_explicit (&v, &expected, desired, memory_order_acq_rel, memory_order_acquire)) + abort (); + if (expected != 0) + abort (); + + if (!atomic_compare_exchange_strong_explicit (&v, &expected, desired, memory_order_seq_cst, memory_order_seq_cst)) + abort (); + if (expected != 0) + abort (); + if (v != max) + abort (); + + v = 0; + + if (!atomic_compare_exchange_strong (&v, &expected, max)) + abort (); + if (expected != 0) + abort (); + + if (atomic_compare_exchange_strong (&v, &expected, zero)) + abort (); + if (expected != max) + abort (); + + if (!atomic_compare_exchange_strong (&v, &expected, zero)) + abort (); + if (expected != max) + abort (); + if (v != 0) + abort (); + + if (atomic_compare_exchange_weak (&v, &expected, desired)) + abort (); + if (expected != 0) + abort (); + + if (!atomic_compare_exchange_strong (&v, &expected, desired)) + abort (); + if (expected != 0) + abort (); + if (v != max) + abort (); + + return 0; +} |