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Re:[PATCH] (updated/ping) Fold (T *)&T.x... (aka upcasting)

From: Geoff Keating <geoffk at apple dot com>
To: rguenther at suse dot de, GCC Patches <gcc-patches at gcc dot gnu dot org>
Date: Mon, 25 Jul 2005 15:48:09 -0700
Subject: Re:[PATCH] (updated/ping) Fold (T *)&T.x... (aka upcasting)
References: <Pine.LNX.4.58.0507221113380.21145@wotan.suse.de>

2005-07-19 Richard Guenther <rguenther@suse.de>

        PR tree-optimization/22486
        * fold-const.c (fold_unary): Fold away useless component
        references of the form (T *)&T.x, if the address
        doesn't change.  Common result of upcasting in C++.

* gcc.dg/tree-ssa/upcast-1.c: New testcase.

This is OK (although you don't need that last sentence in the ChangeLog entry for fold_unary).

:REVIEWMAIL:

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References:
- [PATCH] (updated/ping) Fold (T *)&T.x... (aka upcasting)
  - From: Richard Guenther

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