------- Comment #6 from pinskia at gcc dot gnu dot org 2006-09-28 13:47 ------- (In reply to comment #4) > On x86_64 4.2 decides to unroll 9 times while on 4.1 it unrolls 8 times. This > is > a code-size regression, but other than that? The 4.2 version runs slightly > faster than the 4.1 version, though the difference may be in the noise.
No, no, no, I and Edmar are not complaining about how many times it unrolled but the use of index addressing mode instead of offset addressing mode for the stores and the extra adds. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29256