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Re: [RFC, PATCH 0/3] tree-ssa-tail-merge engine replacement

From: Jeff Law <law at redhat dot com>
To: mliska <mliska at suse dot cz>, gcc-patches at gcc dot gnu dot org
Date: Thu, 09 Jul 2015 09:30:10 -0600
Subject: Re: [RFC, PATCH 0/3] tree-ssa-tail-merge engine replacement
Authentication-results: sourceware.org; auth=none
References: <cover dot 1436450591 dot git dot mliska at suse dot cz>

On 07/09/2015 08:03 AM, mliska wrote:

Hello.

It's going to be almost a year Richard advised me to utilize IPA ICF
infrastructure in tree-ssa-tail-merge, currently using value numbering which
is quite hard to maintain.
Following small patch set is kick-off and I am opened for advices. Meanwhile,
I'm going to send statistics about merged basic blocks before/after the patch set.

Patch set can bootstrap on x86_64-linux-pc and survives regression tests.

Thanks for tackling this -- I never mentioned the tail merging codeexplicitly, I'm glad Richi did.

Re-using parts of the infrastructure you built for ICF for anything thatwants to be proving equivalency of gimple code (such as tail merging)has been in the back of my mind as soon as you posted the initial ICF code.


jeff

References:
- [RFC, PATCH 0/3] tree-ssa-tail-merge engine replacement
  - From: mliska

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