From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id 8C8063893654; Fri, 19 Jun 2020 07:23:00 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 8C8063893654 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1592551380; bh=D0v3U9GUhb1j4DJzjuY9K2ye3riaxiKnjtBfG20sJAM=; h=From:To:Subject:Date:In-Reply-To:References:From; b=A2DmxRicZNklHIPpZ2TFzK7EHGN4AA1JtapteDD1UfIt2WDjQ6U2bZkSTbomdMbBF XZ8/IBjT/EvQXpUb0ZQnmGH3KrgQjRtsfOmHueU80Zzd9Z8r3oTBnvFojmBmrzbIpV tWOUw7ik8T6Ovrw9SqP7K+cVZNvAs997Y6L9Soo4= From: "rguenth at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug rtl-optimization/95756] Failure to optimize memory operations with _Complex Date: Fri, 19 Jun 2020 07:23:00 +0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: rtl-optimization X-Bugzilla-Version: 11.0 X-Bugzilla-Keywords: missed-optimization X-Bugzilla-Severity: normal X-Bugzilla-Who: rguenth at gcc dot gnu.org 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: --- X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: bug_status keywords everconfirmed cf_reconfirmed_on cf_gcctarget component 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 X-BeenThere: gcc-bugs@gcc.gnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Gcc-bugs mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 19 Jun 2020 07:23:00 -0000 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D95756 Richard Biener changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |NEW Keywords| |missed-optimization Ever confirmed|0 |1 Last reconfirmed| |2020-06-19 Target| |x86_64-*-* i?86-*-* Component|target |rtl-optimization --- Comment #1 from Richard Biener --- RTL expansion issue, we're ending up with (insn 5 2 6 2 (set (reg:SF 82 [ ]) (mem/u/c:SF (symbol_ref/u:DI ("*.LC0") [flags 0x2]) [0 S4 A32])) "t.c":3:12 -1 (expr_list:REG_EQUAL (const_double:SF 0.0 [0x0.0p+0]) (nil))) (insn 6 5 10 2 (set (reg:SF 83 [ +4 ]) (mem/u/c:SF (symbol_ref/u:DI ("*.LC0") [flags 0x2]) [0 S4 A32])) "t.c":3:12 -1 (expr_list:REG_EQUAL (const_double:SF 0.0 [0x0.0p+0]) (nil))) (insn 10 6 11 2 (set (reg:SF 84) (reg:SF 82 [ ])) "t.c":4:1 -1 (nil)) (insn 11 10 12 2 (set (reg:SF 85) (reg:SF 83 [ +4 ])) "t.c":4:1 -1 (nil)) (insn 12 11 13 2 (set (mem/c:SF (plus:DI (reg/f:DI 77 virtual-stack-vars) (const_int -8 [0xfffffffffffffff8])) [0 S4 A32]) (reg:SF 84)) "t.c":4:1 -1 (nil)) (insn 13 12 14 2 (set (mem/c:SF (plus:DI (reg/f:DI 77 virtual-stack-vars) (const_int -4 [0xfffffffffffffffc])) [0 S4 A32]) (reg:SF 85)) "t.c":4:1 -1 (nil)) (insn 14 13 15 2 (set (reg:DI 20 xmm0) (mem/c:DI (plus:DI (reg/f:DI 77 virtual-stack-vars) (const_int -8 [0xfffffffffffffff8])) [0 S8 A32])) "t.c":4:= 1 -1 (nil)) (insn 15 14 0 2 (use (reg:DI 20 xmm0)) "t.c":4:1 -1 (nil))=