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Re: [tree-ssa]: Dump file option names and small DCE fix
- From: Diego Novillo <dnovillo at redhat dot com>
- To: Jeff Law <law at redhat dot com>
- Cc: Daniel Berlin <dberlin at dberlin dot org>, "gcc-patches at gcc dot gnu dot org" <gcc-patches at gcc dot gnu dot org>
- Date: 19 Sep 2002 10:21:47 -0400
- Subject: Re: [tree-ssa]: Dump file option names and small DCE fix
- References: <200209191419.g8JEJBu11890@porcupine.slc.redhat.com>
On Thu, 2002-09-19 at 10:19, Jeff Law wrote:
> > if (impossible)
> > return;
> >
> >By making the return inherently necessary, you trick DCE into
> >leaving the if() that we already know is impossible.
> This should be caught by CCP, not DCE.
>
D'oh! Yes, bad example. Sorry.