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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.
Diego.