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From: Janis Johnson <janis187@us.ibm.com> To: nobody@gcc.gnu.org Cc: gcc-prs@gcc.gnu.org, Subject: Re: optimization/10877: [3.3/3.4 regression] miscompilation with -O3 -fPIC on x86 Date: Tue, 20 May 2003 22:46:00 -0000 [thread overview] Message-ID: <20030520224601.27396.qmail@sources.redhat.com> (raw) The following reply was made to PR optimization/10877; it has been noted by GNATS. From: Janis Johnson <janis187@us.ibm.com> To: gcc-prs@gcc.gnu.org, gcc-bugs@gcc.gnu.org, gcc-gnats@gcc.gnu.org, lloyd@acm.jhu.edu, nobody@gcc.gnu.org, ebotcazou@libertysurf.fr Cc: Subject: Re: optimization/10877: [3.3/3.4 regression] miscompilation with -O3 -fPIC on x86 Date: Tue, 20 May 2003 15:32:32 -0700 The pc_thunk started going into %eax with this patch: > 2003-03-12 Eric Botcazou <ebotcazou@libertysurf.fr> > > PR optimization/9888 > * config/i386/i386.md (jcc_1): Fix range. > (jcc_2): Likewise. > (jump): LIkewise. > (doloop_end_internal): Likewise. > > 2003-03-12 Eric Botcazou <ebotcazou@libertysurf.fr> > > PR optimization/9888 > * config/i386/i386.md (movsi_1): Remove special alternatives > for %eax register. > (movsi_1_nointernunit): Likewise. > (movhi_1): Likewise. > * config/i386/i386.c (memory_address_length): Do not use > short displacement when there is no base. > (ix86_attr_length_address_default): Handle LEA instructions. This was tested using Wolfgang's smaller testcase and searching for '_GLOBAL_OFFSET_TABLE_, %eax' in the .s file. http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=10877
next reply other threads:[~2003-05-20 22:46 UTC|newest] Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top 2003-05-20 22:46 Janis Johnson [this message] -- strict thread matches above, loose matches on Subject: below -- 2003-05-21 12:46 Christian Ehrhardt 2003-05-21 11:28 Christian Ehrhardt 2003-05-21 8:46 Christian Ehrhardt 2003-05-20 19:36 Andrew Pinski 2003-05-20 19:27 Andrew Pinski 2003-05-20 19:16 Wolfgang Bangerth 2003-05-20 17:16 Andrew Pinski 2003-05-20 17:06 Wolfgang Bangerth 2003-05-20 17:06 Christian Ehrhardt 2003-05-20 16:16 Wolfgang Bangerth 2003-05-20 13:56 Wolfgang Bangerth 2003-05-20 2:06 Andrew Pinski 2003-05-20 1:16 bangerth
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