[Bug tree-optimization/101637] #pragma omp for simd defeats VECT_COMPARE_COSTS optimisations
jakub at gcc dot gnu.org
gcc-bugzilla@gcc.gnu.org
Tue Jul 27 11:05:26 GMT 2021
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101637
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
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CC| |jakub at gcc dot gnu.org
--- Comment #1 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Depends on whether simdlen clause is specified or not. If it is, we should go
if possible with what user asked for (the chosen vectorization factor).
Otherwise sure, pick the vectorization with smallest cost, but still prefer to
vectorize over not vectorizing, because user asked for vectorization.
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