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Re: Gcc 4.1 has been failing SPEC CPU 2000 on 64bit platforms

From: Paolo Bonzini <bonzini at gnu dot org>
To: gcc at gcc dot gnu dot org
Date: Mon, 19 Sep 2005 14:12:31 +0200
Subject: Re: Gcc 4.1 has been failing SPEC CPU 2000 on 64bit platforms
References: <20050919044646.GA30087@lucon.org> <90238bd1095a2f2218fe8e35a9cabbf2@physics.uc.edu>

Andrew Pinski wrote:

On Sep 19, 2005, at 12:46 AM, H. J. Lu wrote:

http://people.redhat.com/dnovillo/spec2000/

shows that gcc 4.1 has been failing vortex in SPEC CPU 2000 on
Linux/EM64T and Linux/PPC64 at least since Aug. 7, 2005. The current
gcc 4.1 also failed vortex on Linux/ia64. Is that a known issue?

Yes this is an aliasing violation inside of the sources of vortex
see PR 23449.

By SPEC rules, you're allowed to pass -fstrict-aliasing to vortex.

Paolo

References:
- Gcc 4.1 has been failing SPEC CPU 2000 on 64bit platforms
  - From: H. J. Lu
- Re: Gcc 4.1 has been failing SPEC CPU 2000 on 64bit platforms
  - From: Andrew Pinski

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