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Re: RFC: merging MEM_ATTRS
- From: kenner at vlsi1 dot ultra dot nyu dot edu (Richard Kenner)
- To: joern dot rennecke at superh dot com
- Cc: gcc at gcc dot gnu dot org
- Date: Tue, 10 Feb 04 14:51:54 EST
- Subject: Re: RFC: merging MEM_ATTRS
> No. As I said, this can be done with alias sets or with some flag
> or some such. We must have a way in a MEM_ATTRS of saying "we don't
> know what this references".
It's actually quite rare that we need this,
No. You need this whever you haven't bothered to set MEM_ATTRS. There's
absolutely no requirement that all MEM's have it set and there are lots
of cases where they don't. Are you proposing to treat each of them as bugs?