5c7dd7acc3
repo: https://github.com/T-head-Semi/linux commit: b1313fe517ca3703119dcc99ef3bbf75ab42bcfb Change-Id: I6cbb35294024ea3a66140e311f4bb705fd7fd626
29 lines
462 B
Plaintext
29 lines
462 B
Plaintext
C S+poonceonces
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(*
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* Result: Sometimes
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*
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* Starting with a two-process release-acquire chain ordering P0()'s
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* first store against P1()'s final load, if the smp_store_release()
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* is replaced by WRITE_ONCE() and the smp_load_acquire() replaced by
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* READ_ONCE(), is ordering preserved?
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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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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 = READ_ONCE(*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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