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Subject: [Bug bootstrap/55051] [4.8 Regression] profiledbootstrap failed
Date: Thu, 15 Nov 2012 01:29:00 -0000
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55051

--- Comment #17 from Teresa Johnson <tejohnson at google dot com> 2012-11-15 01:28:47 UTC ---
On Wed, Nov 14, 2012 at 5:17 PM, hubicka at gcc dot gnu.org <
gcc-bugzilla@gcc.gnu.org> wrote:

>
> http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55051
>
> --- Comment #16 from Jan Hubicka <hubicka at gcc dot gnu.org> 2012-11-15
> 01:17:43 UTC ---
> Theresa: I am using gcc10 from compilation farm, but I think it is fairly
> universal problem.
>

Ok, I am doing a profiledbootstrap  -j24 with trunk on linux x86_64 to see
if I can reproduce it.


> Also I think that gcc_assert should not be assert, but an user readable
> error
> about gcov file corruption.
>

Are we talking about the coverage mismatch error, i.e.:

 ../../libiberty/cp-demangle.c: In function 'd_print_cast.isra.8':
../../libiberty/cp-demangle.c:5642:1: error: the control flow of function
'd_print_cast.isra.8' does not match its profile data (counter 'arcs')
[-Werror=coverage-mismatch]
 }
 ^
../../libiberty/cp-demangle.c:5642:1: note: use
-Wno-error=coverage-mismatch to
tolerate the mismatch but performance may drop if the function is hot

I don't think this was introduced by my changes. Or are we talking about a
different error?

Thanks,
Teresa

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