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Re: Perhaps fundamental SSA problem with variable-size types
- From: Diego Novillo <dnovillo at redhat dot com>
- To: Richard Kenner <kenner at vlsi1 dot ultra dot nyu dot edu>
- Cc: "gcc at gcc dot gnu dot org" <gcc at gcc dot gnu dot org>
- Date: Mon, 07 Jun 2004 00:22:42 -0400
- Subject: Re: Perhaps fundamental SSA problem with variable-size types
- Organization: Red Hat Canada
- References: <10406061905.AA01268@vlsi1.ultra.nyu.edu>
On Sun, 2004-06-06 at 15:05, Richard Kenner wrote:
> Now that I'm thinking about it, I don't seem to see any code that makes
> dependencies on the sizes, bounds, and positions of types. These
> will be gimplified and the computations to make them will then appear dead.
Are those computations used to reserve heap or stack space? If so, they
will not be dead. We already handle something similar with C VLAs.