Re: [PATCH] tree-optimization/101801 - remove vect_worthwhile_without_simd_p

2021-08-06 Thread Richard Biener via Gcc-patches
On August 6, 2021 3:47:44 PM GMT+02:00, Richard Sandiford wrote: >Richard Biener via Gcc-patches writes: >> This removes the cost part of vect_worthwhile_without_simd_p, retaining >> only the correctness bits. The reason is that the cost heuristic >> do not properly account for SLP plus the che

Re: [PATCH] tree-optimization/101801 - remove vect_worthwhile_without_simd_p

2021-08-06 Thread Richard Sandiford via Gcc-patches
Richard Biener via Gcc-patches writes: > This removes the cost part of vect_worthwhile_without_simd_p, retaining > only the correctness bits. The reason is that the cost heuristic > do not properly account for SLP plus the check whether "without simd" > applies misfires for AVX512 mask vectors at