This is the intended behavior, though now I see that the documentation isn't very clear. You need to use -fprofile-use - the typical usage scenario is to compile with -fprofile-generate to build an executable to do profile collection, and then compile with -fprofile-use to build optimized code using the profile data.
Seongbae On Thu, Jan 8, 2009 at 6:30 AM, Hariharan Sandanagobalane <harihar...@picochip.com> wrote: > Hi Seongbae, > I was doing some work on profiling for picochip, when i noticed what looks > to me like a bug. It looks to me that using fbranch-probabilities on the > commandline (after a round of profile-generate or profile-arcs) would just > not work on any target. Reason.. > > Coverage.c:1011 > > if (flag_profile_use) > read_counts_file (); > > Should this not be > > if (flag_profile_use || flag_branch_probabilities) // Maybe more flags > read_counts_file (); > > ?? > > Of course, i hit the problem later on since the counts were not read, it > just assumed that the .gcda file were not available, when it actually was. > > Thanks > Hari >
