19 lines
598 B
C
19 lines
598 B
C
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#include "libgomp.h"
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#include "../../atomic.c"
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/* Implement __sync_val_compare_and_swap_16, to support offloading from hosts
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that support this builtin. Fallback on libatomic. This can be removed
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once omp-expand starts using __atomic_compare_exchange_n instead. */
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unsigned __int128
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__sync_val_compare_and_swap_16 (volatile void *vptr, unsigned __int128 oldval,
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unsigned __int128 newval)
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{
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volatile __int128 *ptr = vptr;
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__int128 expected = oldval;
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__atomic_compare_exchange_n (ptr, &expected, newval, false,
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MEMMODEL_SEQ_CST, MEMMODEL_SEQ_CST);
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return expected;
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}
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