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From: "aoliva at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org> To: gcc-bugs@gcc.gnu.org Subject: [Bug rtl-optimization/103028] ICE in extract_constrain_insn, at recog.c:2670 Date: Fri, 03 Dec 2021 04:04:25 +0000 [thread overview] Message-ID: <bug-103028-4-OsZtNgixxQ@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 #4 from Alexandre Oliva <aoliva at gcc dot gnu.org> --- Andrew, asm("":"=g"(tt):"g"(t)); asm("":"=g"(ii):"g"(i)); Make it "0" for the inputs: asm("":"=g"(tt):"0"(t)); and AFAICT if you "detach" the immediate constant, you won't get the bug. The problem occurs because (leu (compare reg imm)...) is turned into (ltu (compare reg imm+1)...) for the trap_if, and then the immediate no longer fits in the compare.
next prev parent reply other threads:[~2021-12-03 4:04 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 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 ` aoliva at gcc dot gnu.org [this message] 2021-12-03 4:07 ` [Bug rtl-optimization/103028] " 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
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