From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id 759483858D34; Sun, 28 Apr 2024 06:02:24 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 759483858D34 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1714284144; bh=RGo6+RCrXw+ZujvXfYzavBo+eYdxMv9A4kmvrFKsRQU=; h=From:To:Subject:Date:In-Reply-To:References:From; b=B4ZzqCtAuTNKg2sP7jn89RUAIoGjS5/hjv2fRNIilRqOuAo75MPr9VFpJ6ONy15uZ L+ciATbOm/HnmLmvk9eQZj6YiQ8uGdc1uvI5tJYY7gVDQgOcJA5+vw4Fde6rd0/PTY KnwT5iteHeKwzek9Vme9qJ9VvewRsJSYIXuiVhDE= From: "pan2.li at intel dot com" To: gcc-bugs@gcc.gnu.org Subject: [Bug target/114639] [riscv] ICE in create_pre_exit, at mode-switching.cc:451 Date: Sun, 28 Apr 2024 06:02:23 +0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: target X-Bugzilla-Version: 14.0 X-Bugzilla-Keywords: ice-on-valid-code X-Bugzilla-Severity: normal X-Bugzilla-Who: pan2.li at intel dot com X-Bugzilla-Status: RESOLVED X-Bugzilla-Resolution: FIXED X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org X-Bugzilla-Target-Milestone: 14.0 X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: Message-ID: In-Reply-To: References: 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=3D114639 --- Comment #17 from Li Pan --- According to the V abi, looks like the asm code tries to save/restore the callee-saved registers when there is a call in function body. | Name | ABI Mnemonic | Meaning | Preserved across calls? =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D | v0 | | Argument register | No | v1-v7 | | Callee-saved registers | Yes | v8-v23 | | Argument registers | No | v24-v31 | | Callee-saved registers | Yes=