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Diffstat (limited to 'tools/memory-model/litmus-tests/LB+poonceonces.litmus')
| -rw-r--r-- | tools/memory-model/litmus-tests/LB+poonceonces.litmus | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/tools/memory-model/litmus-tests/LB+poonceonces.litmus b/tools/memory-model/litmus-tests/LB+poonceonces.litmus new file mode 100644 index 0000000000..74c49cb3c3 --- /dev/null +++ b/tools/memory-model/litmus-tests/LB+poonceonces.litmus @@ -0,0 +1,28 @@ +C LB+poonceonces + +(* + * Result: Sometimes + * + * Can the counter-intuitive outcome for the load-buffering pattern + * be prevented even with no explicit ordering? + *) + +{} + +P0(int *x, int *y) +{ + int r0; + + r0 = READ_ONCE(*x); + WRITE_ONCE(*y, 1); +} + +P1(int *x, int *y) +{ + int r0; + + r0 = READ_ONCE(*y); + WRITE_ONCE(*x, 1); +} + +exists (0:r0=1 /\ 1:r0=1) |