public inbox for gcc-bugs@sourceware.org help / color / mirror / Atom feed
From: "marxin at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org> To: gcc-bugs@gcc.gnu.org Subject: [Bug ipa/96482] [10/11 Regression] Combination of -finline-small-functions and ipa-cp optimisations causes incorrect values being passed to a function since r279523 Date: Tue, 11 Aug 2020 07:59:26 +0000 [thread overview] Message-ID: <bug-96482-4-ktxXnnWsp6@http.gcc.gnu.org/bugzilla/> (raw) In-Reply-To: <bug-96482-4@http.gcc.gnu.org/bugzilla/> https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96482 --- Comment #9 from Martin Liška <marxin at gcc dot gnu.org> --- Also this one shows the problem: -fdbg-cnt=ipa_cp_bits:10460-10461. If I see correctly the function body: lto-dump -dump-body=addr_to_index nir_lower_io.c.o Gimple Body of Function: addr_to_index addr_to_index (struct nir_builder * b, struct nir_ssa_def * addr, nir_address_format addr_format) { unsigned int c; <bb 2> [local count: 1073741824]: if (addr_format_3(D) == 3) goto <bb 3>; [20.24%] else goto <bb 4>; [79.76%] <bb 3> [local count: 217325344]: c = 0; _9 = nir_swizzle (b_5(D), addr_6(D), &c, 1); c ={v} {CLOBBER}; goto <bb 7>; [100.00%] <bb 4> [local count: 856416481]: if (addr_format_3(D) == 4) goto <bb 5>; [100.00%] else goto <bb 6>; [0.00%] <bb 5> [local count: 856416481]: _8 = nir_channels (b_5(D), addr_6(D), 3); goto <bb 7>; [100.00%] <bb 6> [count: 0]: __builtin_unreachable (); <bb 7> [local count: 1073741824]: # _1 = PHI <_9(3), _8(5)> return _1; } addr_format (aka param 2) is either 3 or 4. 3 = 0x011 4 = 0x100 so mask 6 = 0x110 is wrong as first bit is not constant. @Martin: Am I right?
next prev parent reply other threads:[~2020-08-11 7:59 UTC|newest] Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top 2020-08-05 11:24 [Bug c/96482] New: Combination of -finline-small-functions and ipa-cp optimisations causes incorrect values being passed to a function yevh.kolesnikov at gmail dot com 2020-08-05 11:27 ` [Bug c/96482] " yevh.kolesnikov at gmail dot com 2020-08-05 11:37 ` [Bug ipa/96482] [10/11 Regression] " rguenth at gcc dot gnu.org 2020-08-10 7:29 ` [Bug ipa/96482] [10/11 Regression] Combination of -finline-small-functions and ipa-cp optimisations causes incorrect values being passed to a function since r279523 marxin at gcc dot gnu.org 2020-08-10 7:41 ` hubicka at gcc dot gnu.org 2020-08-10 14:24 ` yevh.kolesnikov at gmail dot com 2020-08-10 16:58 ` yevh.kolesnikov at gmail dot com 2020-08-10 20:00 ` marxin at gcc dot gnu.org 2020-08-11 7:08 ` marxin at gcc dot gnu.org 2020-08-11 7:59 ` marxin at gcc dot gnu.org [this message] 2020-08-11 7:59 ` marxin at gcc dot gnu.org 2020-08-11 8:02 ` marxin at gcc dot gnu.org 2020-08-11 9:39 ` marxin at gcc dot gnu.org 2020-08-11 15:12 ` marxin at gcc dot gnu.org 2020-08-11 15:33 ` marxin at gcc dot gnu.org 2020-08-11 15:51 ` marxin at gcc dot gnu.org 2020-08-11 16:09 ` marxin at gcc dot gnu.org 2020-08-12 7:38 ` marxin at gcc dot gnu.org 2020-08-12 17:06 ` cvs-commit at gcc dot gnu.org 2020-08-12 17:07 ` [Bug ipa/96482] [10 " marxin at gcc dot gnu.org 2020-08-12 17:40 ` cvs-commit at gcc dot gnu.org 2020-08-12 17:41 ` marxin at gcc dot gnu.org 2020-08-13 8:27 ` cvs-commit at gcc dot gnu.org 2020-08-13 14:12 ` cvs-commit 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-96482-4-ktxXnnWsp6@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).