public inbox for gcc-bugs@sourceware.org help / color / mirror / Atom feed
From: "crazylht at gmail dot com" <gcc-bugzilla@gcc.gnu.org> To: gcc-bugs@gcc.gnu.org Subject: [Bug target/105617] [12/13 Regression] Slp is maybe too aggressive in some/many cases Date: Tue, 17 May 2022 02:47:29 +0000 [thread overview] Message-ID: <bug-105617-4-ZUfC8G8kVG@http.gcc.gnu.org/bugzilla/> (raw) In-Reply-To: <bug-105617-4@http.gcc.gnu.org/bugzilla/> https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105617 --- Comment #7 from Hongtao.liu <crazylht at gmail dot com> --- Hmm, we have specific code to add scalar->vector(vmovq) cost to vector construct, but it seems not to work here, guess it's because &r0,and thought it was load not scalar? r0.1_21 1 times scalar_store costs 12 in body r1.3_23 1 times scalar_store costs 12 in body r2.5_25 1 times scalar_store costs 12 in body r3.7_27 1 times scalar_store costs 12 in body node 0x866f238 1 times vec_construct costs 4 in prologue node 0x866f238 1 times vec_construct costs 4 in prologue r0.1_21 2 times unaligned_store (misalign -1) costs 24 in body /app/example.c:10:10: note: Cost model analysis for part in loop 0: Vector cost: 32 Scalar cost: 48
next prev parent reply other threads:[~2022-05-17 2:47 UTC|newest] Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top 2022-05-16 12:08 [Bug target/105617] New: Regression in code generation for _addcarry_u64() already5chosen at yahoo dot com 2022-05-16 12:13 ` [Bug target/105617] [12/13 regressi] Slp is maybe too aggressive in some/many cases pinskia at gcc dot gnu.org 2022-05-16 12:14 ` pinskia at gcc dot gnu.org 2022-05-16 12:15 ` rguenth at gcc dot gnu.org 2022-05-16 12:38 ` [Bug target/105617] [12/13 Regression] " already5chosen at yahoo dot com 2022-05-16 13:02 ` already5chosen at yahoo dot com 2022-05-16 14:08 ` already5chosen at yahoo dot com 2022-05-17 2:47 ` crazylht at gmail dot com [this message] 2022-05-17 3:29 ` crazylht at gmail dot com 2022-05-17 3:37 ` crazylht at gmail dot com 2022-05-17 6:48 ` rguenth at gcc dot gnu.org 2022-05-17 9:17 ` already5chosen at yahoo dot com 2022-05-17 9:25 ` already5chosen at yahoo dot com 2022-05-19 8:05 ` crazylht at gmail dot com 2022-07-26 11:22 ` rguenth at gcc dot gnu.org 2022-07-26 11:22 ` rguenth at gcc dot gnu.org 2022-07-29 13:21 ` already5chosen at yahoo dot com 2023-05-08 12:24 ` [Bug target/105617] [12/13/14 " rguenth at gcc dot gnu.org 2023-06-01 7:58 ` slash.tmp at free dot fr 2023-06-07 23:16 ` already5chosen at yahoo dot com 2023-06-13 14:54 ` slash.tmp at free dot fr 2023-06-16 14:56 ` already5chosen at yahoo dot com
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-105617-4-ZUfC8G8kVG@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).