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GNU Linux-libre 5.10.217-gnu1
[releases.git]
/
tools
/
memory-model
/
litmus-tests
/
CoRR+poonceonce+Once.litmus
1
C CoRR+poonceonce+Once
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(*
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* Result: Never
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*
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* Test of read-read coherence, that is, whether or not two successive
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* reads from the same variable are ordered.
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*)
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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)
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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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r1 = READ_ONCE(*x);
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}
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exists (1:r0=1 /\ 1:r1=0)