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From: Andrew Pinski <pinskia@physics.uc.edu>
To: nobody@gcc.gnu.org
Cc: gcc-prs@gcc.gnu.org,
Subject: Re: optimization/7632: gcc 3.2 for PowerPC: instruction scheduling ignores dependency in variable asignments
Date: Mon, 19 Aug 2002 05:36:00 -0000	[thread overview]
Message-ID: <20020819122604.7127.qmail@sources.redhat.com> (raw)

The following reply was made to PR optimization/7632; it has been noted by GNATS.

From: Andrew Pinski <pinskia@physics.uc.edu>
To: Horst.Lehser@hightec-rt.com
Cc: gcc-gnats@gcc.gnu.org
Subject: Re: optimization/7632: gcc 3.2 for PowerPC: instruction scheduling ignores dependency in variable asignments
Date: Mon, 19 Aug 2002 08:22:57 -0400

 It is an invalid use of pointers conversion of ISO C aka aliasing rules.
 
 Thanks,
 Andrew Pinski
 
 On Monday, August 19, 2002, at 07:49 , Horst.Lehser@hightec-
 rt.com wrote:
 
 > double a;
 > double foo(void)
 > {
 > 	((int *)&a)[1] += 5;
 > 	return;
 > }
 


             reply	other threads:[~2002-08-19 12:26 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2002-08-19  5:36 Andrew Pinski [this message]
  -- strict thread matches above, loose matches on Subject: below --
2002-09-11 12:06 dje
2002-08-19  8:56 Daniel Jacobowitz
2002-08-19  5:26 Horst.Lehser

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