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Re: Fix latent bug in cfg_remove_useless_stmts_bb
- From: Jeffrey A Law <law at redhat dot com>
- To: Richard Kenner <kenner at vlsi1 dot ultra dot nyu dot edu>
- Cc: gcc-patches at gcc dot gnu dot org
- Date: Tue, 31 Aug 2004 23:46:14 -0600
- Subject: Re: Fix latent bug in cfg_remove_useless_stmts_bb
- Organization: Red Hat, Inc
- References: <10408312235.AA10361@vlsi1.ultra.nyu.edu>
- Reply-to: law at redhat dot com
On Tue, 2004-08-31 at 16:35, Richard Kenner wrote:
> Jeff Law and I discussed this a couple of weeks ago. This is a latent
> bug in the current tree, but some other change of mine triggered it
> and caused a regression in c-torture/execute/930513-2.c with -O3.
>
> 2004-08-31 Richard Kenner <kenner@vlsi1.ultra.nyu.edu>
> Jeff Law <law@redhat.com>
>
> * tree-cfg.c (cfg_remove_useless_stmts_bb): Also invalidate if VAL
> gets modified.
Thanks. I had forgotten about this one.
jeff