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Re: DCE eliminating valid statement for ACATS c34007p
- From: Richard Henderson <rth at redhat dot com>
- To: Richard Kenner <kenner at vlsi1 dot ultra dot nyu dot edu>
- Cc: gcc at gcc dot gnu dot org
- Date: Tue, 6 Sep 2005 11:33:25 -0700
- Subject: Re: DCE eliminating valid statement for ACATS c34007p
- References: <10509061745.AA07416@vlsi1.ultra.nyu.edu>
On Tue, Sep 06, 2005 at 01:45:22PM -0400, Richard Kenner wrote:
> Thanks. I was just copying that code without full understanding
> of what it was doing. But where is that flag cleared when TREE_ADDRESSABLE
> is set? I can't find anything that ever clears it?
Because TREE_ADDRESSABLE should already have been set by the front
end for all variables. The gimplifier never sets TREE_ADDRESSABLE
on existing variables.
r~