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Re: Proposed major change to combine
- To: kenner at vlsi1 dot ultra dot nyu dot edu (Richard Kenner)
- Subject: Re: Proposed major change to combine
- From: Joern Rennecke <amylaar at cambridge dot redhat dot com>
- Date: Fri, 9 Mar 2001 02:38:34 +0000 (GMT)
- Cc: gcc at gcc dot gnu dot org
> I'd like to propose getting rid of the mechanisms where it tries to
> substitute things inside RTL and instead always make new RTL. This costs
> most memory, but is less of an issue with GC.
This will break patterns that require rtl to match, like match_dups and
in-out asm memory operands.