------- Additional Comments From pinskia at physics dot uc dot edu 2005-08-02 14:32 ------- Subject: Re: Improve documentation on -fprofile-generate, -fprofile-use
On Aug 2, 2005, at 10:25 AM, anton at samba dot org wrote: > > ------- Additional Comments From anton at samba dot org 2005-08-02 > 14:25 ------- > Created an attachment (id=9411) --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=9411&action=view) > --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=9411&action=view) > Update profile option documentation > > Document all options that -fprofile-generate/-fprofile-usr select: > > -fprofile-generate selects -fspeculative-prefetching > -fprofile-use selects -fprofile-values and -fspeculative-prefetching No use/generate does not select -fspeculative-prefetching. The code to select it was disabled. > I noticed -fprofile-generate does select -funroll-loops but I dont > know why it > does (so didnt document it) The reason why it turns on -funroll-loops is because unrolling happens before profiling is done. Though that was only true in 4.0.x. -- Pinski -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23197
