diff options
Diffstat (limited to 'tools/memory-model/litmus-tests/MP+polocks.litmus')
| -rw-r--r-- | tools/memory-model/litmus-tests/MP+polocks.litmus | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/tools/memory-model/litmus-tests/MP+polocks.litmus b/tools/memory-model/litmus-tests/MP+polocks.litmus new file mode 100644 index 000000000000..5fe6f1e3c452 --- /dev/null +++ b/tools/memory-model/litmus-tests/MP+polocks.litmus @@ -0,0 +1,24 @@ +C MP+polocks + +{} + +P0(int *x, int *y, spinlock_t *mylock) +{ + WRITE_ONCE(*x, 1); + spin_lock(mylock); + WRITE_ONCE(*y, 1); + spin_unlock(mylock); +} + +P1(int *x, int *y, spinlock_t *mylock) +{ + int r0; + int r1; + + spin_lock(mylock); + r0 = READ_ONCE(*y); + spin_unlock(mylock); + r1 = READ_ONCE(*x); +} + +exists (1:r0=1 /\ 1:r1=0) |