RFA: profile.c USE_MAPPED_LOCATION support

[Jan Hubicka]

> Hi -
> 
> 
> hubicka wrote:
> 
> > brprob.exp looks fine.  Can you please check it also with
> > -ftree-based-profiling?
> > If that passes, the patch is OK.
> 
> Actually that test fails with the current code already (making
> appropriate changes in bprob.exp to add the flag).  Would you
> be interested in a testsuite patch that checks tree profiling
> in addition to rtl profiling?  It'd have all these failures

There are few failures due to bugs in the testsuite itself already fixed
on tree-profiling, so in the case you get at least few passes, it is
fine.  (if you break line numbering you will likely get all failures)

The overall goal is to switch to tree based coverage soon and kill the
rtl based coverage code too, but in the case you want to extend the
testuiste to test both for time being, you are welcome to do that too.

Thanks for testing it!
Honza
> initially.
> 
>                 === gcc Summary ===
> # of expected passes            26
> # of unexpected failures        8
> # of unresolved testcases       22
> 
> 
> - FChE