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Re: [PATCH, PR 50744] Prevent overflows in IPA-CP

From: Eric Botcazou <ebotcazou at adacore dot com>
To: Richard Guenther <richard dot guenther at gmail dot com>
Cc: gcc-patches at gcc dot gnu dot org, Jan Hubicka <hubicka at ucw dot cz>
Date: Sun, 4 Dec 2011 16:52:36 +0100
Subject: Re: [PATCH, PR 50744] Prevent overflows in IPA-CP
References: <20111118174752.GA1950@virgil.arch.suse.de> <201112041631.30438.ebotcazou@adacore.com> <CAFiYyc068ZayQEMAaJhGke6qBFE-=6r1e=fMs6bW9hWfpkLVrA@mail.gmail.com>

> No to what?  To the fact that HOST_WIDEST_INT is host-dependent
> and thus should not be used to drive code generation?  Or no to the
> fact that we can (and do) use int64_t as host integer type?

No to the fact that int64_t should be used (and the occurrences in the LTO code 
are OK).  hwint.h is precisely supposed to insulate the compiler from the host 
(of course we all know that this isn't 100% true) and HOST_WIDEST_INT is the 
proper type to be used in this case, see existing examples.

-- 
Eric Botcazou

Follow-Ups:
- Re: [PATCH, PR 50744] Prevent overflows in IPA-CP
  - From: Jan Hubicka

References:
- Re: [PATCH, PR 50744] Prevent overflows in IPA-CP
  - From: Eric Botcazou
- Re: [PATCH, PR 50744] Prevent overflows in IPA-CP
  - From: Richard Guenther

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