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Re: What to remove after tree-ssa is merged?
- From: kenner at vlsi1 dot ultra dot nyu dot edu (Richard Kenner)
- To: paul at codesourcery dot com
- Cc: gcc at gcc dot gnu dot org
- Date: Wed, 4 Feb 04 15:58:19 EST
- Subject: Re: What to remove after tree-ssa is merged?
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.
Sure, when there is such an expression it can indeed be folded (or not even
generated at all).