public inbox for gcc-bugs@sourceware.org help / color / mirror / Atom feed
From: "pinskia at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org> To: gcc-bugs@gcc.gnu.org Subject: [Bug middle-end/92080] Missed CSE of _mm512_set1_epi8(c) with _mm256_set1_epi8(c) Date: Sat, 04 Sep 2021 22:17:09 +0000 [thread overview] Message-ID: <bug-92080-4-exsvxHaekV@http.gcc.gnu.org/bugzilla/> (raw) In-Reply-To: <bug-92080-4@http.gcc.gnu.org/bugzilla/> https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92080 Andrew Pinski <pinskia at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Last reconfirmed|2019-10-14 00:00:00 |2021-9-4 Severity|normal |enhancement --- Comment #5 from Andrew Pinski <pinskia at gcc dot gnu.org> --- This gives good code: #include <immintrin.h> __m512i sinkz; __m256i sinky; void foo(char c) { __m512i a = _mm512_set1_epi8(c); sinkz = a; sinky = *((__m256i*)&a); }
next parent reply other threads:[~2021-09-04 22:17 UTC|newest] Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top [not found] <bug-92080-4@http.gcc.gnu.org/bugzilla/> 2021-09-04 22:17 ` pinskia at gcc dot gnu.org [this message] 2023-06-13 7:43 ` [Bug rtl-optimization/92080] " rguenth at gcc dot gnu.org 2024-03-21 7:13 ` liuhongt at gcc dot gnu.org 2024-03-21 7:51 ` rguenther at suse dot de 2024-03-21 8:03 ` liuhongt at gcc dot gnu.org 2024-03-21 8:31 ` rguenth at gcc dot gnu.org 2024-03-21 8:43 ` pinskia at gcc dot gnu.org
Reply instructions: You may reply publicly to this message via plain-text email using any one of the following methods: * Save the following mbox file, import it into your mail client, and reply-to-all from there: mbox Avoid top-posting and favor interleaved quoting: https://en.wikipedia.org/wiki/Posting_style#Interleaved_style * Reply using the --to, --cc, and --in-reply-to switches of git-send-email(1): git send-email \ --in-reply-to=bug-92080-4-exsvxHaekV@http.gcc.gnu.org/bugzilla/ \ --to=gcc-bugzilla@gcc.gnu.org \ --cc=gcc-bugs@gcc.gnu.org \ /path/to/YOUR_REPLY https://kernel.org/pub/software/scm/git/docs/git-send-email.html * If your mail client supports setting the In-Reply-To header via mailto: links, try the mailto: linkBe sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions for how to clone and mirror all data and code used for this inbox; as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).