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Re: Deprecating -f options?
- From: Joern RENNECKE <joern dot rennecke at st dot com>
- To: Andrew MacLeod <amacleod at redhat dot com>
- Cc: gcc mailing list <gcc at gcc dot gnu dot org>
- Date: Thu, 15 Jun 2006 19:06:07 +0100
- Subject: Re: Deprecating -f options?
In http://gcc.gnu.org/ml/gcc/2006-06/msg00549.html, you wrote:
-ftree-live-range-split splits live ranges on exit from ssa. This is
on by default, and in fact it is more work to NOT split unrelated live
ranges, and creates extra register pressure.
I've found that in 4.1, -fno-web is often needed in order to generate auto-increment addressing.
I suppose that will be similar for any live range splitting that happens before flow.