From 1531f39268c8973cf9478585fba5c5bbdb6e9c4c Mon Sep 17 00:00:00 2001 From: Jakub Jelinek Date: Tue, 16 Feb 2021 08:59:03 +0100 Subject: openmp: Fix up vectorization simd call badness computation [PR99100] As mentioned in the PR, ix86_simd_clone_usable didn't make it more desirable to use 'e' mangled AVX512F entrypoints over 'd' mangled ones (AVX2) with the same simdlen. This patch fixes that. I have tweaked the generic code too to make more room for these target specific badness factors. 2021-02-16 Jakub Jelinek PR target/99100 * tree-vect-stmts.c (vectorizable_simd_clone_call): For num_calls != 1 multiply by 4096 and for inbranch by 8192. * config/i386/i386.c (ix86_simd_clone_usable): For TARGET_AVX512F, return 3, 2 or 1 for mangle letters 'b', 'c' or 'd'. * gcc.target/i386/pr99100.c: New test. --- gcc/tree-vect-stmts.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'gcc/tree-vect-stmts.c') diff --git a/gcc/tree-vect-stmts.c b/gcc/tree-vect-stmts.c index 083f38b..85d3161 100644 --- a/gcc/tree-vect-stmts.c +++ b/gcc/tree-vect-stmts.c @@ -3914,9 +3914,9 @@ vectorizable_simd_clone_call (vec_info *vinfo, stmt_vec_info stmt_info, || n->simdclone->nargs != nargs) continue; if (num_calls != 1) - this_badness += exact_log2 (num_calls) * 1024; + this_badness += exact_log2 (num_calls) * 4096; if (n->simdclone->inbranch) - this_badness += 2048; + this_badness += 8192; int target_badness = targetm.simd_clone.usable (n); if (target_badness < 0) continue; -- cgit v1.1