36 lines
343 B
Plaintext
36 lines
343 B
Plaintext
C IRIW+mbonceonces+OnceOnce
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{}
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P0(int *x)
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{
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WRITE_ONCE(*x, 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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int r1;
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r0 = READ_ONCE(*x);
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smp_mb();
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r1 = READ_ONCE(*y);
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}
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P2(int *y)
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{
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WRITE_ONCE(*y, 1);
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}
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P3(int *x, int *y)
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{
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int r0;
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int r1;
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r0 = READ_ONCE(*y);
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smp_mb();
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r1 = READ_ONCE(*x);
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}
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exists (1:r0=1 /\ 1:r1=0 /\ 3:r0=1 /\ 3:r1=0)
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