From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 123900 invoked by alias); 25 May 2015 11:32:18 -0000 Mailing-List: contact gcc-bugs-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Id: List-Archive: List-Post: List-Help: Sender: gcc-bugs-owner@gcc.gnu.org Received: (qmail 123843 invoked by uid 55); 25 May 2015 11:32:14 -0000 From: "dave.anglin at bell dot net" To: gcc-bugs@gcc.gnu.org Subject: [Bug middle-end/66148] [6 regression] build/genpreds: Internal error: abort in choose_enum_order, at genpreds.c:1006 Date: Mon, 25 May 2015 11:32:00 -0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: middle-end X-Bugzilla-Version: 6.0 X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: dave.anglin at bell dot net X-Bugzilla-Status: NEW X-Bugzilla-Resolution: X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org X-Bugzilla-Target-Milestone: 6.0 X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: Message-ID: In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/ Auto-Submitted: auto-generated MIME-Version: 1.0 X-SW-Source: 2015-05/txt/msg02058.txt.bz2 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66148 --- Comment #5 from dave.anglin at bell dot net --- On 2015-05-25, at 3:21 AM, thopre01 at gcc dot gnu.org wrote: > Here the REG_EQUAL does not match the value that is set: the 32 most > significant bits are zero. Which is why combine decide that the set of > zero_extract can be removed. Looking at the dumps of the various pass, > everything looks fine until cse1 where instruction 360 is replaced from: > > (insn 360 359 361 32 (set (reg:DI 549) > (lo_sum:DI (reg:DI 550) > (const_int -822083584 [0xffffffffcf000000]))) > ../../gcc/gcc/genpreds.c:983 93 {*pa.md:2773} > (expr_list:REG_EQUAL (const_int 3472883712 [0xcf000000]) > (nil))) The note appears wrong before cse1. Dave -- John David Anglin dave.anglin@bell.net