30 lines
423 B
Plaintext
30 lines
423 B
Plaintext
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C SB+poonceonces
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(*
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* Result: Sometimes
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*
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* This litmus test demonstrates that at least some ordering is required
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* to order the store-buffering pattern, where each process writes to the
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* variable that the preceding process reads.
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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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int r0;
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WRITE_ONCE(*x, 1);
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r0 = READ_ONCE(*y);
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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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WRITE_ONCE(*y, 1);
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r0 = READ_ONCE(*x);
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}
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exists (0:r0=0 /\ 1:r0=0)
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