From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id 43C7D3858D39; Wed, 12 Jun 2024 02:54:21 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 43C7D3858D39 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1718160861; bh=dmNdhwiGNsSWB/EZH8BWxPRwhIrsoVbgHqMYkneQWVY=; h=From:To:Subject:Date:From; b=jqftvtbIM9jNXP7UibmiudogkEDTSI5/ZcRN7hn0zn7CzL033fYM6l4ZlxKM+OXlR 8DAY0Xexdd7cEByiLiqp7YXS+zllOTPb7aclMGBshG3Hzv/C1IrWNWqyuv4VsgpZwG HEcX+olBgAnyREtkJXj/reqv1FULDwMnIXtb4aiY= From: "liuhongt at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug target/115452] New: ICE when dump stv2 for gcc.target/i386/pr70322-2.c with -march=cascadelake Date: Wed, 12 Jun 2024 02:54:20 +0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: new X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: target X-Bugzilla-Version: 15.0 X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: liuhongt at gcc dot gnu.org X-Bugzilla-Status: UNCONFIRMED X-Bugzilla-Resolution: X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org X-Bugzilla-Target-Milestone: --- X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: bug_id short_desc product version bug_status bug_severity priority component assigned_to reporter target_milestone Message-ID: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/ Auto-Submitted: auto-generated MIME-Version: 1.0 List-Id: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D115452 Bug ID: 115452 Summary: ICE when dump stv2 for gcc.target/i386/pr70322-2.c with -march=3Dcascadelake Product: gcc Version: 15.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: target Assignee: unassigned at gcc dot gnu.org Reporter: liuhongt at gcc dot gnu.org Target Milestone: --- gcc -m32 -march=3Dcascadelake ./gcc/testsuite/gcc.target/i386/pr70322-2.c -= mstv -mno-bmi -S -Os -fdump-rtl-stv2-details ./gcc/testsuite/gcc.target/i386/pr70322-2.c: In function =E2=80=98foo=E2=80= =99: ./gcc/testsuite/gcc.target/i386/pr70322-2.c:12:1: internal compiler error: = RTL check: expected code 'reg', have 'subreg' in rhs_regno, at rtl.h:1934 12 | } | ^ 0x88ef75 rtl_check_failed_code1(rtx_def const*, rtx_code, char const*, int, char const*) ./gcc/rtl.cc:770 0x96be78 rhs_regno(rtx_def const*) ./gcc/rtl.h:1934 0x96cd8d rhs_regno(rtx_def const*) ./genrtl.h:38 0x96cd8d convert_op ./gcc/config/i386/i386-features.cc:1056 0x1af7711 convert_insn ./gcc/config/i386/i386-features.cc:1468 0x1af9808 convert ./gcc/config/i386/i386-features.cc:1987 0x1af9808 convert_scalars_to_vector ./gcc/config/i386/i386-features.cc:2536 0x1af9808 execute ./gcc/config/i386/i386-features.cc:2750 ------------cut from i386-features.cc:1056--------------- if (dump_file) fprintf (dump_file, " Preloading operand for insn %d into r%d\n", INSN_UID (insn), REGNO (tmp)); --------------cut end------------------------------- Looks like tmp is SUBREG.=