Re: optimization/10877: [3.3/3.4 regression] miscompilation with -O3 -fPIC on x86
Janis Johnson <[email protected]>
| Newsgroups | gmane.comp.gcc.prs |
|---|---|
| Message-ID | <[email protected]> |
The following reply was made to PR optimization/10877; it has been noted by GNATS. From: Janis Johnson <[email protected]> To: [email protected], [email protected], [email protected], [email protected], [email protected], [email protected] 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 <[email protected]> > > 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 <[email protected]> > > 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