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28 lines
356 B
28 lines
356 B
3 years ago
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C S+fencewmbonceonce+poacquireonce
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(*
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* Result: Never
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*
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* Can a smp_wmb(), instead of a release, and an acquire order a prior
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* store against a subsequent store?
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*)
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{}
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P0(int *x, int *y)
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{
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WRITE_ONCE(*x, 2);
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smp_wmb();
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WRITE_ONCE(*y, 1);
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}
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P1(int *x, int *y)
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{
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int r0;
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r0 = smp_load_acquire(y);
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WRITE_ONCE(*x, 1);
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}
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exists (x=2 /\ 1:r0=1)
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