https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71672
Martin Liška <marxin at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|WAITING |NEW
--- Comment #3 from Martin Liška <marxin at gcc dot gnu.org> ---
Good, using perf 4.6 works for me. However the profile is rejected here:
if (total >= info->count / 2)
{
if (dump_file)
fprintf (dump_file, " not hot anymore %ld >= %ld",
(long)total,
(long)info->count /2);
return false;
}
where total == 388 and info->count == 360. IIUC the count belongs to a BB where
the indirect call is triggered? If so, the bail out does not make much sense.
Anyhow, commenting out the return statement, I fails dues to "no target map".
Debugging find_icall_target_map function which is correctly called for p_10 (),
but callsites of main is just single and equal to 'setp'. That's strange, as
the call is completely inlined.
Simple dump patch generates:
f: a1, num_callsites: 0
num_targets: 0
f: main, num_callsites: 1
num_targets: 0
num_targets: 0
num_targets: 1
num_targets: 0
f: setp, num_callsites: 0
num_targets: 0
num_targets: 0
So it looks main contains just the callsite to 'setp', call of 'p' is missing.
Would it be related to a gcov_create issue. Any verbose debug option I can use?
