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Re: [testsuite] don't use lto plugin if it doesn't work

From: Alexandre Oliva <aoliva at redhat dot com>
To: Jakub Jelinek <jakub at redhat dot com>
Cc: Mike Stump <mikestump at comcast dot net>, "H.J. Lu" <hjl dot tools at gmail dot com>, gcc-patches at gcc dot gnu dot org, gcc at gcc dot gnu dot org
Date: Thu, 28 Jun 2012 08:39:22 -0300
Subject: Re: [testsuite] don't use lto plugin if it doesn't work
References: <orfw9hbx8p.fsf@livre.localdomain> <AED76334-441D-4270-875A-0B65CEB403BF@comcast.net> <CAMe9rOpdfb=JXDvLdDVxKm3+GoAY8Nr3OHg2rbtgsYBjH2Z0uw@mail.gmail.com> <orfw9h9l8a.fsf@livre.localdomain> <C3864956-ED3F-46F4-91EE-D06640457FA3@comcast.net> <or395fgb2w.fsf@livre.localdomain> <20120628072128.GQ20264@tucnak.redhat.com>

On Jun 28, 2012, Jakub Jelinek <jakub@redhat.com> wrote:

> On Thu, Jun 28, 2012 at 04:16:55AM -0300, Alexandre Oliva wrote:
>> I'd very be surprised if I asked for an i686 native build to package and
>> install elsewhere, and didn't get a plugin just because the build-time
>> linker wouldn't have been able to run the plugin.

> Not disable plugin support altogether, but disable assuming the linker
> supports the plugin.

That still doesn't sound right to me: why should the compiler refrain
from using a perfectly functional linker plugin on the machine where
it's installed (not where it's built)?

Also, this scenario of silently deciding whether or not to use the
linker plugin could bring us to different test results for the same
command lines.  I don't like that.

-- 
Alexandre Oliva, freedom fighter    http://FSFLA.org/~lxoliva/
You must be the change you wish to see in the world. -- Gandhi
Be Free! -- http://FSFLA.org/   FSF Latin America board member
Free Software Evangelist      Red Hat Brazil Compiler Engineer

Follow-Ups:
- Re: [testsuite] don't use lto plugin if it doesn't work
  - From: Richard Guenther
- Re: [testsuite] don't use lto plugin if it doesn't work
  - From: Mike Stump

References:
- Re: [testsuite] don't use lto plugin if it doesn't work
  - From: Alexandre Oliva
- Re: [testsuite] don't use lto plugin if it doesn't work
  - From: Mike Stump
- Re: [testsuite] don't use lto plugin if it doesn't work
  - From: Alexandre Oliva
- Re: [testsuite] don't use lto plugin if it doesn't work
  - From: Jakub Jelinek

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