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Re: gcc-4.2.2 -O2 bug??

From: Andrew Haley <aph at redhat dot com>
To: CH Gowri Kumar - àààà ààààà à <gkumar007 at gmail dot com>
Cc: gcc-help at gcc dot gnu dot org
Date: Thu, 19 Jun 2008 10:46:33 +0100
Subject: Re: gcc-4.2.2 -O2 bug??
References: <526520db0806172357o4e5679abw48d50f299bfccda6@mail.gmail.com> <4858E427.3010003@redhat.com> <526520db0806182115h20e143bbo43d46326af3733e2@mail.gmail.com>

CH Gowri Kumar - àààà àààààà wrote:
> Hi Andrew,
>> What happens with -fno-strict-aliasing ?
> That gives the correct result. But no warning still.

Right, so it's an aliasing bug in 4.2.2.

This joins bug 32182, 32328, 34363, and others.

Flow-insensitive aliasing is broken in gcc 4.2.  Please try gcc 4.3.

Andrew.

References:
- gcc-4.2.2 -O2 bug??
  - From: CH Gowri Kumar - àààà àààààà
- Re: gcc-4.2.2 -O2 bug??
  - From: Andrew Haley
- Re: gcc-4.2.2 -O2 bug??
  - From: CH Gowri Kumar - àààà àààààà

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