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Re: [power7-meissner] Change constraints setup; Add debug switches; Make power7 scheduling like power5

From: Paolo Bonzini <bonzini at gnu dot org>
To: Michael Meissner <meissner at linux dot vnet dot ibm dot com>, gcc-patches at gcc dot gnu dot org
Date: Wed, 01 Jul 2009 08:48:05 +0200
Subject: Re: [power7-meissner] Change constraints setup; Add debug switches; Make power7 scheduling like power5
References: <20090625215452.GA548@hungry-tiger.westford.ibm.com>

On 06/25/2009 11:54 PM, Michael Meissner wrote:

This patch changes how the register constraints are setup, to use an array to
hold the constraints for each of the register constraints that can vary at
runtime ("d", "f", etc.).

It also adds some new debug switches to try an isolate some performance issues,
and makes the power5 schedule like a power7.

It doesn't do either of these things. :-) You attached this ChangeLog:

2009-03-09 Michael Meissner <meissner@linux.vnet.ibm.com>

	* config/rs6000/vsx.md (vsx_store<mode>_update64): Use correct
	registers for store with update.
	(vsx_store<mode>_update32): Ditto.
	(vsx_storedf_update<VSbit>): Ditto.

Paolo

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