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Re: wrong code genaration

From: Andrew Pinski <pinskia at physics dot uc dot edu>
To: Giorgenes Gelatti <giorgenes dot canopus at terra dot com dot br>
Cc: gcc-bugs at gcc dot gnu dot org
Date: Tue, 15 Feb 2005 10:50:03 -0500
Subject: Re: wrong code genaration
References: <20050215134557.12579e7e@trinita.canopus>

On Feb 15, 2005, at 10:45 AM, Giorgenes Gelatti wrote:

general info
------------
gcc --version:
gcc (GCC) 3.3.4
uname -a: Linux trinita 2.4.26 #6 Mon Jun 14 19:07:27 PDT 2004 i686 unknown unknown GNU/Linux
compiled with:
gcc bug.c -O1 -save-temps -o bug

mpixel = (double)((unsigned int)h * w) / 1000000.0;

Hmm, can you try -ffloat-store. If that cures your problem then this is not a bug per say. GCC is just using excessive precision on x86.

-- Pinski

References:
- wrong code genaration
  - From: Giorgenes Gelatti

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