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Re: Out Of SSA Rewrite - New TER implementation

From: Mark Shinwell <shinwell at codesourcery dot com>
To: Andrew Pinski <pinskia at physics dot uc dot edu>
Cc: Andrew MacLeod <amacleod at redhat dot com>, gcc-patches <gcc-patches at gcc dot gnu dot org>
Date: Tue, 21 Nov 2006 21:19:47 +0000
Subject: Re: Out Of SSA Rewrite - New TER implementation
References: <200611211959.kALJxcJr029776@localhost.localdomain>

Andrew Pinski wrote:

Andrew MacLeod wrote:

This patch re-implements TER.  The fundamental idea remains the same...
step through the function determining tracking which single use
expressions are currently available for substitution,  and marking them
as replaceable if the use is seen while they are still valid.

I've only had a quick look at this, but I think it might still suffer
from PR# 29877 which we looked at recently.  Since I haven't finished
preparing a mainline patch for that yet (the testcase identified in my
patch on Bugzilla needed further alteration for other targets) then
perhaps I should just hang on until this is in?


Except I think PR 29877 should also be fixed on the 4.0, 4.1, and 4.2
branches.

Yes, I'll do that.

M.

References:
- Re: Out Of SSA Rewrite - New TER implementation
  - From: Andrew Pinski

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