------- Additional Comments From rth at gcc dot gnu dot org 2005-01-30 18:04 ------- Ok, I see what Intel is doing. It's computing an index by 16 by doing
addl %ecx,%ecx movl (%ebx, %ecx, 8), %eax instead of sall $4, %ecx movl (%ebx, %ecx), %eax which, considering the suckitude of the P4 shifter, is a win. It should not be a win for any other cpu. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19680
