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Linux 5.7.7
[linux/fpc-iii.git]
/
tools
/
memory-model
/
litmus-tests
/
SB+poonceonces.litmus
blob
10d550730b25fdd800f2dd5ec8a9f0e555d65415
1
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)