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From: "bonzini at gnu dot org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug rtl-optimization/55489] New: [4.7 regression] insane PRE memory usage with PIE (translate.i)
Date: Tue, 27 Nov 2012 14:08:00 -0000	[thread overview]
Message-ID: <bug-55489-4@http.gcc.gnu.org/bugzilla/> (raw)


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55489

             Bug #: 55489
           Summary: [4.7 regression] insane PRE memory usage with PIE
                    (translate.i)
    Classification: Unclassified
           Product: gcc
           Version: 4.7.2
            Status: UNCONFIRMED
          Keywords: memory-hog
          Severity: normal
          Priority: P3
         Component: rtl-optimization
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: bonzini@gnu.org


Created attachment 28793
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=28793
gzipped preprocessed source

Yet another evil testcase, this time for RTL GCSE.  Compile with:

$ gcc ~/translate.i -g -O2 -fPIE

gcc 4.4.6:
 PRE :   3.83 (24%) usr   0.15 (17%) sys   3.99 (24%) wall  267307 kB (33%) ggc

gcc 4.7.2:
 PRE :   7.95 (41%) usr   0.40 (40%) sys   8.31 (41%) wall  821017 kB (80%) ggc

Fixed, or latent in trunk:

gcc 4.8.0:
 PRE :   6.94 (26%) usr   0.02 ( 4%) sys   6.98 (26%) wall     731 kB ( 0%) ggc


             reply	other threads:[~2012-11-27 14:08 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-11-27 14:08 bonzini at gnu dot org [this message]
2012-11-27 14:09 ` [Bug rtl-optimization/55489] " bonzini at gnu dot org
2012-11-27 14:20 ` rguenth at gcc dot gnu.org
2012-11-27 15:51 ` [Bug rtl-optimization/55489] [4.7/4.8 " bonzini at gnu dot org
2012-11-27 20:27 ` bonzini at gnu dot org
2012-11-27 20:29 ` bonzini at gnu dot org
2012-11-28  9:30 ` bonzini at gnu dot org

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