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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:05:51 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:05:51 +0000 |
commit | 5d1646d90e1f2cceb9f0828f4b28318cd0ec7744 (patch) | |
tree | a94efe259b9009378be6d90eb30d2b019d95c194 /tools/memory-model/litmus-tests/S+fencewmbonceonce+poacquireonce.litmus | |
parent | Initial commit. (diff) | |
download | linux-upstream/5.10.209.tar.xz linux-upstream/5.10.209.zip |
Adding upstream version 5.10.209.upstream/5.10.209upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'tools/memory-model/litmus-tests/S+fencewmbonceonce+poacquireonce.litmus')
-rw-r--r-- | tools/memory-model/litmus-tests/S+fencewmbonceonce+poacquireonce.litmus | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/tools/memory-model/litmus-tests/S+fencewmbonceonce+poacquireonce.litmus b/tools/memory-model/litmus-tests/S+fencewmbonceonce+poacquireonce.litmus new file mode 100644 index 000000000..18479823c --- /dev/null +++ b/tools/memory-model/litmus-tests/S+fencewmbonceonce+poacquireonce.litmus @@ -0,0 +1,27 @@ +C S+fencewmbonceonce+poacquireonce + +(* + * Result: Never + * + * Can a smp_wmb(), instead of a release, and an acquire order a prior + * store against a subsequent store? + *) + +{} + +P0(int *x, int *y) +{ + WRITE_ONCE(*x, 2); + smp_wmb(); + WRITE_ONCE(*y, 1); +} + +P1(int *x, int *y) +{ + int r0; + + r0 = smp_load_acquire(y); + WRITE_ONCE(*x, 1); +} + +exists (x=2 /\ 1:r0=1) |