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From: "ysrumyan at gmail dot com" <gcc-bugzilla@gcc.gnu.org> To: gcc-bugs@gcc.gnu.org Subject: [Bug rtl-optimization/65078] New: [5.0 Regression] 4.9 and 5.0 generate more spill-fill in comparison with 4.8.2 Date: Mon, 16 Feb 2015 14:17:00 -0000 [thread overview] Message-ID: <bug-65078-4@http.gcc.gnu.org/bugzilla/> (raw) https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65078 Bug ID: 65078 Summary: [5.0 Regression] 4.9 and 5.0 generate more spill-fill in comparison with 4.8.2 Product: gcc Version: 5.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: rtl-optimization Assignee: unassigned at gcc dot gnu.org Reporter: ysrumyan at gmail dot com Using attached simple test-case extracted from codec we found out that 4.8.2 compiler generates more compact binaries in comparison with 4.9 & 5.0 compilers ('-O3 -msse2 -m32" options were used), for example grep -c "%esp" t1.4.8.2.s 25 grep -c "%esp" t1.trunk.s 75
next reply other threads:[~2015-02-16 14:17 UTC|newest] Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top 2015-02-16 14:17 ysrumyan at gmail dot com [this message] 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 ` rguenth at gcc dot gnu.org 2015-02-16 14:44 ` jakub 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 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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