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 target/103028] ICE in extract_constrain_insn, at recog.c:2670 Date: Mon, 01 Nov 2021 21:54:48 +0000 [thread overview] Message-ID: <bug-103028-4-J1pqMINJTC@http.gcc.gnu.org/bugzilla/> (raw) In-Reply-To: <bug-103028-4@http.gcc.gnu.org/bugzilla/> https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103028 --- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> --- You should be able to hit this without -fharden-conditional-branches Try something like: unsigned char x; int foo(void) { unsigned long long i = x; i = i + 0x80000000; unsigned long long t = 0xffffffff; unsigned long long tt, ii; asm("":"=g"(tt):"g"(t)); asm("":"=g"(ii):"g"(i)); if (i > t) { if ((ii <= tt)) __builtin_trap(); return x; } else if (!(ii <= tt)) __builtin_trap(); return 0; }
next prev parent reply other threads:[~2021-11-01 21:54 UTC|newest] Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top 2021-11-01 15:06 [Bug target/103028] New: " marxin at gcc dot gnu.org 2021-11-01 15:06 ` [Bug target/103028] " marxin at gcc dot gnu.org 2021-11-01 21:54 ` pinskia at gcc dot gnu.org [this message] 2021-11-02 8:32 ` rguenth at gcc dot gnu.org 2021-11-03 9:15 ` krebbel at gcc dot gnu.org 2021-11-04 18:29 ` krebbel at gcc dot gnu.org 2021-12-03 4:04 ` [Bug rtl-optimization/103028] " aoliva at gcc dot gnu.org 2021-12-03 4:07 ` pinskia at gcc dot gnu.org 2021-12-03 5:11 ` aoliva at gcc dot gnu.org 2021-12-04 3:20 ` cvs-commit at gcc dot gnu.org 2021-12-04 3:38 ` aoliva at gcc dot gnu.org 2021-12-04 3:40 ` aoliva 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-103028-4-J1pqMINJTC@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).