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From: "jakub at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug rtl-optimization/65078] [5 Regression] 4.9 and 5.0 generate more spill-fill in comparison with 4.8.2
Date: Tue, 17 Mar 2015 15:13:00 -0000	[thread overview]
Message-ID: <bug-65078-4-4BsSCrpPl5@http.gcc.gnu.org/bugzilla/> (raw)
In-Reply-To: <bug-65078-4@http.gcc.gnu.org/bugzilla/>

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65078

--- Comment #11 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Created attachment 35044
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=35044&action=edit
gcc5-pr65078.patch

Untested fix using a pre-reload splitter of mov[sd]i if the source is SI/DImode
lowpart subreg of 16/32/64 byte vector register.


  parent reply	other threads:[~2015-03-17 15:13 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-02-16 14:17 [Bug rtl-optimization/65078] New: [5.0 " ysrumyan at gmail dot com
2015-02-16 14:19 ` [Bug rtl-optimization/65078] " ysrumyan at gmail dot com
2015-02-16 14:38 ` rguenth at gcc dot gnu.org
2015-02-16 14:40 ` ubizjak at gmail dot com
2015-02-16 14:44 ` jakub at gcc dot gnu.org
2015-02-16 14:44 ` rguenth at gcc dot gnu.org
2015-02-16 14:50 ` jakub at gcc dot gnu.org
2015-02-18 17:15 ` [Bug rtl-optimization/65078] [5 " law at redhat dot com
2015-03-17 10:33 ` jakub at gcc dot gnu.org
2015-03-17 11:05 ` jakub at gcc dot gnu.org
2015-03-17 12:22 ` jakub at gcc dot gnu.org
2015-03-17 15:13 ` jakub at gcc dot gnu.org [this message]
2015-03-18 10:59 ` jakub at gcc dot gnu.org
2015-03-18 11:12 ` jakub at gcc dot gnu.org

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