From: John Carr <jfc@mit.edu>
To: Oskar Enoksson <osken393@student.liu.se>
Cc: egcs@cygnus.com
Subject: Re: Optimization
Date: Thu, 02 Apr 1998 03:41:00 -0000 [thread overview]
Message-ID: <199804011326.IAA23392@contents-vnder-pressvre.MIT.EDU> (raw)
In-Reply-To: <Pine.SGI.3.96.980326123604.8153E-100000@purcell>
The problem is, egcs detects aliases based on size of type, not type.
The stores to the float array kill the values in the integer array.
If you compile with -fargument-noalias you should see the optimization
you want. Be careful using this flag: it makes an assertion about
pointer behavior which is not valid for some programs.
next prev parent reply other threads:[~1998-04-02 3:41 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
1998-03-29 5:14 Optimization Oskar Enoksson
1998-04-02 3:41 ` John Carr [this message]
1998-04-02 8:21 ` Optimization Jeffrey A Law
1998-04-02 11:32 ` Optimization Jim Wilson
1998-04-02 3:41 ` Optimization Oskar Enoksson
1998-04-03 21:52 ` Optimization John Carr
1998-04-02 11:32 ` Optimization Joern Rennecke
1999-03-29 8:18 ` Optimization Jeffrey A Law
1999-03-31 23:46 ` Optimization Jeffrey A Law
1999-03-30 5:07 Optimization Oskar Enoksson
1999-03-31 23:46 ` Optimization Oskar Enoksson
2000-05-11 11:21 Optimization Thomas, Robert S
2000-05-11 11:31 ` Optimization Jeffrey A Law
2003-05-02 12:05 Optimization Piotr Wyderski
2003-05-02 23:08 ` Optimization Richard Henderson
2003-05-03 0:12 ` Optimization Andrew Pinski
2003-05-03 1:14 ` Optimization Richard Henderson
2003-12-09 16:42 optimization Viktor Przebinda
2003-12-09 17:29 ` optimization Diego Novillo
2003-12-09 18:53 ` optimization Scott Robert Ladd
2003-12-09 18:18 optimization Benjamin Kosnik
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