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Note: File does not exist in v3.15.
 1C CoWW+poonceonce
 2
 3(*
 4 * Result: Never
 5 *
 6 * Test of write-write coherence, that is, whether or not two successive
 7 * writes to the same variable are ordered.
 8 *)
 9
10{}
11
12P0(int *x)
13{
14	WRITE_ONCE(*x, 1);
15	WRITE_ONCE(*x, 2);
16}
17
18exists (x=1)