What to remove after tree-ssa is merged?
Paul Brook
paul@codesourcery.com
Wed Feb 4 21:21:00 GMT 2004
On Wednesday 04 February 2004 8:58 pm, Richard Kenner wrote:
> It _can_ be made explicit. We may not know the actual value, but for a
> given expression we do know which instance we want to extract it from
> (by walking back to a corresponding WITH_RECORD_EXPR).
>
> But there *is* no corresponding WITH_RECORD_EXPR when the expression
> is used as a size, offset or bound: that's precisely the point.
The information must be there somewhere. Whenever these size or bound
expressions are used, it surely must be in the context of a particular
object. The RTL expanders manage it quite happily.
Paul
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