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Re: [PATCH] Fix PRs 52080, 52097 and 48124, rewrite bitfield expansion, enable the C++ memory model wrt bitfields everywhere

From: Eric Botcazou <ebotcazou at adacore dot com>
To: Richard Guenther <rguenther at suse dot de>
Cc: gcc-patches at gcc dot gnu dot org
Date: Thu, 15 Mar 2012 18:03:27 +0100
Subject: Re: [PATCH] Fix PRs 52080, 52097 and 48124, rewrite bitfield expansion, enable the C++ memory model wrt bitfields everywhere
References: <alpine.LNX.2.00.1203051416220.18230@zhemvz.fhfr.qr> <alpine.LNX.2.00.1203151621270.27160@zhemvz.fhfr.qr> <201203151719.11650.ebotcazou@adacore.com>

> Computing the offset in stor-layout.c and storing it in DECL_INITIAL?

Ugh.  I just realized that the DECL_BIT_FIELD_REPRESENTATIVE is built during 
layout... but is overloaded with DECL_QUALIFIER.  That's probably the source 
of the miscompilation I talked about earlier.

Can we delay it until after gimplification ?  Then we could use DECL_INITIAL.

-- 
Eric Botcazou

Follow-Ups:
- Re: [PATCH] Fix PRs 52080, 52097 and 48124, rewrite bitfield expansion, enable the C++ memory model wrt bitfields everywhere
  - From: Richard Guenther

References:
- [PATCH] Fix PRs 52080, 52097 and 48124, rewrite bitfield expansion, enable the C++ memory model wrt bitfields everywhere
  - From: Richard Guenther
- Re: [PATCH] Fix PRs 52080, 52097 and 48124, rewrite bitfield expansion, enable the C++ memory model wrt bitfields everywhere
  - From: Richard Guenther
- Re: [PATCH] Fix PRs 52080, 52097 and 48124, rewrite bitfield expansion, enable the C++ memory model wrt bitfields everywhere
  - From: Eric Botcazou

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