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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-06 01:02:30 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-06 01:02:30 +0000 |
| commit | 76cb841cb886eef6b3bee341a2266c76578724ad (patch) | |
| tree | f5892e5ba6cc11949952a6ce4ecbe6d516d6ce58 /tools/memory-model/litmus-tests/LB+poonceonces.litmus | |
| parent | Initial commit. (diff) | |
| download | linux-76cb841cb886eef6b3bee341a2266c76578724ad.tar.xz linux-76cb841cb886eef6b3bee341a2266c76578724ad.zip | |
Adding upstream version 4.19.249.upstream/4.19.249upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
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 000000000..74c49cb3c --- /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) |