http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55734



--- Comment #16 from Teresa Johnson <tejohnson at google dot com> 2012-12-19 
15:07:54 UTC ---

On Wed, Dec 19, 2012 at 5:07 AM, rguenth at gcc dot gnu.org

<gcc-bugzi...@gcc.gnu.org> wrote:

>

> http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55734

>

> --- Comment #15 from Richard Biener <rguenth at gcc dot gnu.org> 2012-12-19 
> 13:07:01 UTC ---

> (In reply to comment #14)

>> (In reply to comment #10)

>> > Ah yes, now I remember.  Yes, there is a problem with libgcov.a.  I

>> > wasn't seeing it because I was only building cc1.  You are correct

>> > Teresa, that is the reason for the gymnastics in my original patch.

>> >

>> > houston:/build/trunkboot/gcc$ nm libgcov.a |grep popc

>> >                   U popcount_hwi

>> >

>> > I will let you and Richard sort it out :).

>>

>> libgcov should be built by stage1 gcc already and thus has the builtins

>> available.

>

> To be more explicit - use #if IN_LIBGCOV to guard __builtin_popcountll vs.

> popcount_hwi.



Ah, yes, this fact escaped me and makes things much simpler. Running

the regression tests right now, will send patch as soon as they

finish...



Thanks,

Teresa



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Teresa Johnson | Software Engineer | tejohn...@google.com | 408-460-2413

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