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Re: [PATCH] Fix PR32628, bogus overflow flag on sizetype consts

From: kenner at vlsi1 dot ultra dot nyu dot edu (Richard Kenner)
To: rguenther at suse dot de
Cc: ebotcazou at adacore dot com, gcc-patches at gcc dot gnu dot org
Date: Wed, 16 Jan 2008 11:15:32 EST
Subject: Re: [PATCH] Fix PR32628, bogus overflow flag on sizetype consts
References: <Pine.LNX.4.64.0801151634030.23003@zhemvz.fhfr.qr> <200801161703.39181.ebotcazou@adacore.com> <Pine.LNX.4.64.0801161710421.23003@zhemvz.fhfr.qr>

> 	* fold-const.c (fold_convert_const_int_from_int): Do not
> 	set overflow if that occured only because of a sign extension
> 	change when converting from/to a sizetype with the same
> 	precision and signedness.

I think that's safe, but I'd still like to understand the definition questions
I asked about in my last message.

References:
- [PATCH] Fix PR32628, bogus overflow flag on sizetype consts
  - From: Richard Guenther
- Re: [PATCH] Fix PR32628, bogus overflow flag on sizetype consts
  - From: Eric Botcazou
- Re: [PATCH] Fix PR32628, bogus overflow flag on sizetype consts
  - From: Richard Guenther

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