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Re: [PATCH] Add comparison operators for vector types

From: Chris Lattner <clattner at apple dot com>
To: Andrew Pinski <Andrew_Pinski at playstation dot sony dot com>
Cc: GCC Patches <gcc-patches at gcc dot gnu dot org>, Trevor_Smigiel <Trevor_Smigiel at playstation dot sony dot com>
Date: Fri, 29 May 2009 21:17:39 -0700
Subject: Re: [PATCH] Add comparison operators for vector types
References: <de8d50360905291806i2b12b4a6n9179a3cd2f9e47d2@mail.gmail.com>

On May 29, 2009, at 6:06 PM, Andrew Pinski wrote:

Hi,
 The C/C++ Language extension for the Cell defines the comparison
operators for vectors.  The result of these operators is a single
boolean value representing the bitwise AND of all pairwise
comparisons.  This patch adds support for these operators and a
testcase to test them for both C and C++.

This patch was originally written by Trevor and updated by me for the
tuplifications of tree-vect-generic.c.

OK? Bootstrapped and tested on i686-linux-gnu with no regressions.

Is this something you want to do on the Cell alone, or for generic vectors in general? Note that OpenCL defines vector comparisons differently than this. If GCC aims to support it one day, it would useful to consider what it wants. Cell is a particularly useful target for OpenCL.

-Chris

Follow-Ups:
- Re: [PATCH] Add comparison operators for vector types
  - From: Richard Guenther

References:
- [PATCH] Add comparison operators for vector types
  - From: Andrew Pinski

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