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Re: [RFC] Migrate pointers to members to the middle end

From: Michael Matz <matz at suse dot de>
To: Tom Tromey <tromey at redhat dot com>
Cc: Ian Lance Taylor <iant at google dot com>, Ollie Wild <aaw at google dot com>, GCC List <gcc at gcc dot gnu dot org>
Date: Fri, 10 Aug 2007 15:09:53 +0200 (CEST)
Subject: Re: [RFC] Migrate pointers to members to the middle end
References: <65dd6fd50708071404n7bcb356fx4b267e1874062458@mail.gmail.com> <Pine.LNX.4.64.0708082027510.23011@wotan.suse.de> <m3wsw5h7c4.fsf@localhost.localdomain> <Pine.LNX.4.64.0708090240050.23011@wotan.suse.de> <m3643osb87.fsf@fleche.redhat.com>

Hi,

On Thu, 9 Aug 2007, Tom Tromey wrote:

Michael> Yes, devirtualization.  But I wonder if you really need class
Michael> hierarchies for this (actually I'm fairly sure you don't).
However, I'm not sure I agree with the above assertion. Specifically, for Java I think it is sometimes possible to strength reduce interface calls to virtual calls, but I don't see how this could be done without class hierarchy information.

Okay, I suppose there are transformations that could make use of class hierarchies. Luckily we do have that via the BINFO machinery already.


Ciao,
Michael.

References:
- [RFC] Migrate pointers to members to the middle end
  - From: Ollie Wild
- Re: [RFC] Migrate pointers to members to the middle end
  - From: Michael Matz
- Re: [RFC] Migrate pointers to members to the middle end
  - From: Ian Lance Taylor
- Re: [RFC] Migrate pointers to members to the middle end
  - From: Michael Matz
- Re: [RFC] Migrate pointers to members to the middle end
  - From: Tom Tromey

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