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[Bug tree-optimization/38748] [4.4 Regression] Missed FRE because of VIEW_CONVERT_EXPR
- From: "rguenther at suse dot de" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 13 Jan 2009 08:55:09 -0000
- Subject: [Bug tree-optimization/38748] [4.4 Regression] Missed FRE because of VIEW_CONVERT_EXPR
- References: <bug-38748-10053@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #5 from rguenther at suse dot de 2009-01-13 08:55 -------
Subject: Re: [4.4 Regression] Missed FRE because
of VIEW_CONVERT_EXPR
On Tue, 13 Jan 2009, pinskia at gcc dot gnu dot org wrote:
> ------- Comment #4 from pinskia at gcc dot gnu dot org 2009-01-13 01:09 -------
> We should be able to fold:
> VIEW_CONVERT_EXPR<const struct Loc>(D.919509.D.78313.D.78008)
>
> Into just D.919509 .
True. I tried a quick shot at it but it turns out to be slightly
complicated ;)
Richard.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38748