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Re: PR/32004, tree-ssa caused in/out asm constraints to often need reloads

From: Eric Botcazou <ebotcazou at adacore dot com>
To: Paolo Bonzini <bonzini at gnu dot org>
Cc: Andrew Pinski <pinskia at gmail dot com>, gcc-patches at gcc dot gnu dot org, Mark Mitchell <mark at codesourcery dot com>
Date: Mon, 9 Jul 2007 14:55:31 +0200
Subject: Re: PR/32004, tree-ssa caused in/out asm constraints to often need reloads
References: <468CC82F.2060702@lu.unisi.ch> <200707090748.59581.ebotcazou@adacore.com> <469228F7.6020601@gnu.org>

> Actually it is fixed by this trivial patch.  Ok for 4.2/4.1?

This patch is *not* trivial.  The RTL dataflow engine in flow.c has known 
quirks and we should be conservative in changing how it is invoked.

Again, you didn't get approval for the 4.1 branch, please revert the patch.

-- 
Eric Botcazou

Follow-Ups:
- Re: PR/32004, tree-ssa caused in/out asm constraints to often need reloads
  - From: Richard Guenther
- Re: PR/32004, tree-ssa caused in/out asm constraints to often need reloads
  - From: Paolo Bonzini

References:
- PR/32004, tree-ssa caused in/out asm constraints to often need reloads
  - From: Paolo Bonzini
- Re: PR/32004, tree-ssa caused in/out asm constraints to often need reloads
  - From: Eric Botcazou
- Re: PR/32004, tree-ssa caused in/out asm constraints to often need reloads
  - From: Paolo Bonzini

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