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To: Bernd Schmidt <bernds_cb1@t-online.de>
Cc: Daniel Berlin <dberlin@dberlin.org>, GCC Patches <gcc-patches@gcc.gnu.org>,         Diego Novillo <dnovillo@redhat.com>, Andrew Pinski <pinskia@gmail.com>
Subject: Re: Reload bug & SRA oddness
References: <462807D3.7010106@t-online.de> 	<4aca3dc20704192019u4458386dicf5078a9190381a9@mail.gmail.com> 	<46283931.2090207@t-online.de> 	<orejmf1qlz.fsf@free.oliva.athome.lsd.ic.unicamp.br> 	<4628AE84.9060706@t-online.de>
From: Alexandre Oliva <aoliva@redhat.com>
Errors-To: aoliva@oliva.athome.lsd.ic.unicamp.br
Date: Fri, 20 Apr 2007 18:28:00 -0000
In-Reply-To: <4628AE84.9060706@t-online.de> (Bernd Schmidt's message of "Fri\, 20 Apr 2007 14\:13\:56 +0200")
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On Apr 20, 2007, Bernd Schmidt <bernds_cb1@t-online.de> wrote:

> Doesn't this indicate we're passing the wrong value for the IS_OUTPUT
> arg of scalarize_use somewhere?

Not quite.  Modifying a bit-field needs to preserve part of the
original value, so it's both input and output.

> Bootstrap completed, and no check-gcc regressions on i686-linux.  Can
> you send me a testcase that fails when this change is made?

I'll give your patch a try.

-- 
Alexandre Oliva         http://www.lsd.ic.unicamp.br/~oliva/
FSF Latin America Board Member         http://www.fsfla.org/
Red Hat Compiler Engineer   aoliva@{redhat.com, gcc.gnu.org}
Free Software Evangelist  oliva@{lsd.ic.unicamp.br, gnu.org}