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From: "kyukhin at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org> To: gcc-bugs@gcc.gnu.org Subject: [Bug tree-optimization/52252] An opportunity for x86 gcc vectorizer (gain up to 3 times) Date: Wed, 18 Jun 2014 07:47:00 -0000 [thread overview] Message-ID: <bug-52252-4-cpvocxoMqE@http.gcc.gnu.org/bugzilla/> (raw) In-Reply-To: <bug-52252-4@http.gcc.gnu.org/bugzilla/> https://gcc.gnu.org/bugzilla/show_bug.cgi?id=52252 --- Comment #7 from Kirill Yukhin <kyukhin at gcc dot gnu.org> --- Author: kyukhin Date: Wed Jun 18 07:46:18 2014 New Revision: 211769 URL: https://gcc.gnu.org/viewcvs?rev=211769&root=gcc&view=rev Log: gcc/ * config/i386/i386.c (ix86_reassociation_width): Add alternative for vector case. * config/i386/i386.h (TARGET_VECTOR_PARALLEL_EXECUTION): New. * config/i386/x86-tune.def (X86_TUNE_VECTOR_PARALLEL_EXECUTION): New. * tree-vect-data-refs.c (vect_shift_permute_load_chain): New. Introduces alternative way of loads group permutaions. (vect_transform_grouped_load): Try alternative way of permutations. gcc/testsuite/ PR tree-optimization/52252 * gcc.target/i386/pr52252-atom.c: Test on loads group of size 3. * gcc.target/i386/pr52252-core.c: Ditto. PR tree-optimization/61403 * gcc.target/i386/pr61403.c: Test on loads and stores group of size 3. Added: trunk/gcc/testsuite/gcc.target/i386/pr52252-atom.c trunk/gcc/testsuite/gcc.target/i386/pr52252-core.c trunk/gcc/testsuite/gcc.target/i386/pr61403.c Modified: trunk/gcc/ChangeLog trunk/gcc/config/i386/i386.c trunk/gcc/config/i386/i386.h trunk/gcc/config/i386/x86-tune.def trunk/gcc/testsuite/ChangeLog trunk/gcc/tree-vect-data-refs.c
next prev parent reply other threads:[~2014-06-18 7:47 UTC|newest] Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top 2012-02-14 22:42 [Bug c/52252] New: " evstupac at gmail dot com 2012-02-15 11:55 ` [Bug tree-optimization/52252] " rguenth at gcc dot gnu.org 2012-02-29 12:34 ` evstupac at gmail dot com 2012-07-13 8:48 ` rguenth at gcc dot gnu.org 2014-02-11 14:27 ` evstupac at gmail dot com 2014-05-07 12:11 ` kyukhin at gcc dot gnu.org 2014-06-11 8:38 ` kyukhin at gcc dot gnu.org 2014-06-18 7:47 ` kyukhin at gcc dot gnu.org [this message] 2023-08-31 7:07 ` rguenth at gcc dot gnu.org 2023-11-28 6:06 ` pinskia at gcc dot gnu.org 2023-11-28 10:55 ` rguenther at suse dot de 2023-11-28 22:24 ` pinskia at gcc dot gnu.org
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