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Add SC-per-Location Axiom #6

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Add SC-per-Location Axiom #6

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6 changes: 5 additions & 1 deletion alloy/ptx.als
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Original file line number Diff line number Diff line change
Expand Up @@ -129,8 +129,12 @@ pred no_thin_air {
acyclic[rf + dep]
}

pred sc_per_location {
acyclic[strong[com] + po_loc]
}

pred ptx_mm {
no_thin_air and atomicity and coherence and causality and seq_cst
no_thin_air and atomicity and coherence and causality and seq_cst and sc_per_location
}


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21 changes: 21 additions & 0 deletions tests/SC_per_location.test
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Original file line number Diff line number Diff line change
@@ -0,0 +1,21 @@
.global x;
.global f1;
.global f2;

d0.b0.t0 {
st.release.sys [x], 1;
st.release.sys [f1], 1;
}

d0.b1.t0 {
st.release.gpu [x], 2;
ld.acquire.sys r0, [x];
st.release.sys [f2], 1;
}
d0.b2.t0 {
ld.acquire.sys r1, [f2];
ld.acquire.sys r2, [f2];
ld.acquire.sys r3, [x];
}

assert (r0 != 0 || r1 != 1 || r2 != 1 || r3 != 2) as my_test;