------- Comment #3 from hjl dot tools at gmail dot com 2010-09-01 15:56 ------- (In reply to comment #2) > gcc-4.5 is still hardmasked downstream in Gentoo, then, I am unsure about > installing it :-/, are you sure this bug could be solved in 4.5* ? >
1. -march=native is changed in gcc 4.5. 2. Your cpu is Core. 3. -mtune=generic generates the fastest code for Core. 4. Prescott and Core have the same instruction set. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45483