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From: "cvs-commit at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org> To: gcc-bugs@gcc.gnu.org Subject: [Bug tree-optimization/102583] [x86] Failure to optimize 32-byte integer vector conversion to 16-byte float vector properly when converting upper part with -mavx2 Date: Fri, 13 May 2022 01:04:09 +0000 [thread overview] Message-ID: <bug-102583-4-rBa8L1iwFK@http.gcc.gnu.org/bugzilla/> (raw) In-Reply-To: <bug-102583-4@http.gcc.gnu.org/bugzilla/> https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102583 --- Comment #5 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The master branch has been updated by hongtao Liu <liuhongt@gcc.gnu.org>: https://gcc.gnu.org/g:8ab4b484153031c407b7d8c760b6a2605da1199a commit r13-379-g8ab4b484153031c407b7d8c760b6a2605da1199a Author: liuhongt <hongtao.liu@intel.com> Date: Fri Apr 8 11:26:46 2022 +0800 Strip of a vector load which is only used partially. Optimize _4 = VEC_PERM_EXPR <_1, _1, { 4, 5, 6, 7, 4, 5, 6, 7 }>; _5 = BIT_FIELD_REF <_4, 128, 0>; to _5 = BIT_FIELD_REF <_1, 128, 128>; gcc/ChangeLog: PR tree-optimization/102583 * tree-ssa-forwprop.cc (simplify_bitfield_ref): Extended to a contiguous stride in the VEC_PERM_EXPR. gcc/testsuite/ChangeLog: * gcc.target/i386/pr102583.c: New test. * gcc.target/i386/pr92645-2.c: Adjust testcase. * gcc.target/i386/pr92645-3.c: Ditto.
next prev parent reply other threads:[~2022-05-13 1:04 UTC|newest] Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top 2021-10-04 2:57 [Bug target/102583] New: " gabravier at gmail dot com 2021-10-04 7:53 ` [Bug target/102583] " rguenth at gcc dot gnu.org 2022-01-25 6:32 ` [Bug tree-optimization/102583] " crazylht at gmail dot com 2022-01-25 9:06 ` crazylht at gmail dot com 2022-04-08 7:28 ` crazylht at gmail dot com 2022-05-13 1:04 ` cvs-commit at gcc dot gnu.org [this message] 2022-05-13 1:19 ` crazylht at gmail dot com 2022-05-16 22:11 ` gabravier at gmail dot com 2022-05-16 23:09 ` hjl.tools at gmail dot com
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