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27 lines
356 B
27 lines
356 B
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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