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Re: aliasing warnings [patch]

To: oliva AT lsd.ic.unicamp.br
Subject: Re: aliasing warnings [patch]
From: Mark Mitchell <mark AT codesourcery dot com>
Date: Thu, 16 Sep 1999 11:53:29 -0700
Cc: zack AT bitmover dot com, egcs AT egcs.cygnus dot com, egcs-patches AT egcs.cygnus dot com
Organization: CodeSourcery, LLC
References: <199909161637.JAA15001@zack.bitmover.com><19990916101540T.mitchell@codesourcery.com><orvh9ayd92.fsf@cupuacu.lsd.ic.unicamp.br>

>>>>> "Alexandre" == Alexandre Oliva <oliva@lsd.ic.unicamp.br> writes:

    Alexandre> Couldn't we just add struct rtx_def to union tree_node
    Alexandre> to get rid of some such warnings?

Not quite.  We're storing `union tree_node *'.  So, we'd need 

  union tree_or_rtl_ptr { union tree_node *u; struct rtx_def *r; };

That would be a nuisance, and seems unnecessary, IMO.

--
Mark Mitchell                   mark@codesourcery.com
CodeSourcery, LLC               http://www.codesourcery.com

References:
- aliasing warnings [patch]
  - From: Zack Weinberg
- Re: aliasing warnings [patch]
  - From: Mark Mitchell
- Re: aliasing warnings [patch]
  - From: Alexandre Oliva

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