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 tree-optimization/111924] New: Look into using movement_possibility (in tree-ssa-loop-im.cc) for empty_bb_or_one_feeding_into_p for phi-opt Date: Mon, 23 Oct 2023 00:28:27 +0000 [thread overview] Message-ID: <bug-111924-4@http.gcc.gnu.org/bugzilla/> (raw) https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111924 Bug ID: 111924 Summary: Look into using movement_possibility (in tree-ssa-loop-im.cc) for empty_bb_or_one_feeding_into_p for phi-opt Product: gcc Version: 14.0 Status: UNCONFIRMED Keywords: internal-improvement Severity: enhancement Priority: P3 Component: tree-optimization Assignee: unassigned at gcc dot gnu.org Reporter: pinskia at gcc dot gnu.org Target Milestone: --- I noticed that movement_possibility/movement_possibility_1 does almost the same as what some of the checks inside empty_bb_or_one_feeding_into_p does. It seems like it might be a good idea to combine the 2 into one function and use that in both PHI-OPT and Loop-im. Note phi-opt does allow unconditionally a few known builtins/internal functions too which seems like could benifit IM too. Oh movement_possibility now disallows some movements of shifts which definitely could be improved and it is definitely something which PHI-OPT should use too.
next reply other threads:[~2023-10-23 0:28 UTC|newest] Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top 2023-10-23 0:28 pinskia at gcc dot gnu.org [this message] 2023-10-23 0:29 ` [Bug tree-optimization/111924] " 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-111924-4@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).