------- Comment #9 from yuri at tsoft dot com 2005-12-20 06:51 ------- Subject: Re: REGREGRESSION: SSE2 vectorized code is many times slower on 4.x.x than on 3.4.4
----------------------------------- Using built-in specs. Configured with: FreeBSD/i386 system compiler Thread model: posix gcc version 3.4.4 [FreeBSD] 20050518 ----------------------------------- g++ -v (4.0.2) Using built-in specs. Target: i386-unknown-freebsd6.0 Configured with: ../gcc-4.0.2/configure --prefix=/usr/local/gcc-4.0.2 Thread model: posix gcc version 4.0.2 pinskia at gcc dot gnu dot org wrote: >------- Comment #8 from pinskia at gcc dot gnu dot org 2005-12-20 06:36 >------- >Can you show what the output of "gcc -v" for the 3.4 compiler and the 4.0 >compiler? > >This looks like just a different using arch by default. > >a Compiler compiled for i686 by default gives the good code but code compiled >for i386 give bad code. > > > > -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25500
