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Re: [PATCH] Don't disallow copyprop for virtual ops for loop depth check

From: Diego Novillo <dnovillo at redhat dot com>
To: Andrew Pinski <pinskia at gmail dot com>
Cc: gcc-patches at gcc dot gnu dot org
Date: Fri, 01 Dec 2006 16:36:53 -0500
Subject: Re: [PATCH] Don't disallow copyprop for virtual ops for loop depth check
References: <1164698153.29420.22.camel@celery.andrew.com> <1164698615.29420.24.camel@celery.andrew.com>

Andrew Pinski wrote on 11/28/06 02:23:

ChangeLog:

	* tree-ssa-dom.c (cprop_operand): Ignore the loop depth when
	copyproping on virtual operands.
	(propagate_rhs_into_lhs): Likewise.
	* tree-ssa-copy.c (copy_prop_visit_phi_node): Likewise.

	* gcc.c-torture/compile/pr29922.c: New test.
	* gfortran.fortran-torture/compile/pr29922.f: New test.

I'm confused about your comment on PRE. Are you saying that this patch will now trigger a latent bug in PRE? If not, then the patch is OK.

Follow-Ups:
- Re: [PATCH] Don't disallow copyprop for virtual ops for loop depth check
  - From: Andrew Pinski

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