------- Comment #6 from steven at gcc dot gnu dot org 2006-02-18 14:36 ------- Timings with the same compilers on the same machine, but with -m32 -march=pentium4 (but still with -O2):
GCC 4.0 GCC 4.1 0m4.148s 0m8.817s 0m4.140s 0m8.785s 0m4.164s 0m8.761s So: 1) We produce _faster_ code with GCC 4.0 -m32 than with -m64 2) GCC 4.1 -m32 produces code that is twice as slow as GCC 4.0 -m32, as reported. Both points are odd (and no, I did not by accident swap the results somwhere ;-) -- steven at gcc dot gnu dot org changed: What |Removed |Added ---------------------------------------------------------------------------- Last reconfirmed|2006-02-15 10:58:11 |2006-02-18 14:36:15 date| | http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26290