This is the mail archive of the gcc-patches@gcc.gnu.org mailing list for the GCC project.

Index Nav:	[Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav:	[Date Prev] [Date Next]	[Thread Prev] [Thread Next]
Other format:	[Raw text]

Re: [patch] (X << C) >> C folding

From: Richard Henderson <rth at redhat dot com>
To: Marcin Dalecki <martin at dalecki dot de>
Cc: "James A.Morrison" <ja2morri at csclub dot uwaterloo dot ca>, gcc-patches at gcc dot gnu dot org
Date: Sun, 12 Jun 2005 20:13:54 -0700
Subject: Re: [patch] (X << C) >> C folding
References: <kfhpsur4fv4.fsf@csclub.uwaterloo.ca> <E14187E7-4BB3-46ED-9A6C-98B1DEB2C824@dalecki.de>

On Sun, Jun 12, 2005 at 09:25:39PM +0200, Marcin Dalecki wrote:
> Just curious: Shouldn't this read (~0) instead of (-1) in the above?
> Not all platforms are 1's complement. Some use sign bit...

GCC will never support such a platform.


r~

References:
- [patch] (X << C) >> C folding
  - From: James A. Morrison
- Re: [patch] (X << C) >> C folding
  - From: Marcin Dalecki

Index Nav:	[Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav:	[Date Prev] [Date Next]	[Thread Prev] [Thread Next]