This is the mail archive of the gcc@gcc.gnu.org mailing list for the GCC project.

Index Nav:	[Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav:	[Date Prev] [Date Next]	[Thread Prev] [Thread Next]
Other format:	[Raw text]

Re: [tree-ssa] where to fix this?

From: Daniel Berlin <dberlin at dberlin dot org>
To: law at redhat dot com
Cc: Roger Sayle <roger at eyesopen dot com>,gcc at gcc dot gnu dot org,Dale Johannesen <dalej at apple dot com>,Jan Hubicka <hubicka at ucw dot cz>,Jan Hubicka <jh at suse dot cz>
Date: Tue, 6 Jan 2004 18:56:52 -0500
Subject: Re: [tree-ssa] where to fix this?
References: <200401062340.i06Ndxb5019376@speedy.slc.redhat.com>

When we follow def-use chains in the dominator optimizer to reassociate
and simplify operands.  The stuff we do right now is pretty simple, but
it's one of the two areas of the dominator optimizer that I do expect
will need to be extended.

I tried a variant on this back right before we had renaming SSA. It was a forward and backward substitution pass, which tried to see if any of the resulting expressions were GIMPLE (after trying folding, of course). They never were.

Follow-Ups:
- Re: [tree-ssa] where to fix this?
  - From: law

References:
- Re: [tree-ssa] where to fix this?
  - From: law

Index Nav:	[Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav:	[Date Prev] [Date Next]	[Thread Prev] [Thread Next]