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Re: cgraph, unit-at-a-time, and the "used" attribute

From: Gary Funck <gary at intrepid dot com>
To: Janis Johnson <janis187 at us dot ibm dot com>
Cc: GCC List <gcc at gcc dot gnu dot org>
Date: Tue, 9 Oct 2007 08:22:48 -0700
Subject: Re: cgraph, unit-at-a-time, and the "used" attribute
References: <20071007024859.GG9118@intrepid.com> <1191880206.15648.5.camel@janis-laptop>

On Mon, Oct 08, 2007 at 02:50:06PM -0700, Janis Johnson wrote:
> 
> Might this be related to http://gcc.gnu.org/PR33645?

Possibly. We think that we saw a problem rebuilding one of
the math functions in libgcc2 at -O2 with unit-at-a-time
disabled, that resulted in a compilation failure.  Since
that isn't the usual configuration, perhaps there's
an implicit dependency between funit-at-a-time and
one of optimization passes? (We didn't look into the
issue further.  The baseline we're using is 4.2.0, fyi.)

Thanks for the reference to the PR.
  - Gary

References:
- cgraph, unit-at-a-time, and the "used" attribute
  - From: Gary Funck
- Re: cgraph, unit-at-a-time, and the "used" attribute
  - From: Janis Johnson

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