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Re: Stepanov, PowerPC, life_analysis

To: Mark Mitchell <mark at codesourcery dot com>
Subject: Re: Stepanov, PowerPC, life_analysis
From: Richard Henderson <rth at redhat dot com>
Date: Sat, 9 Jun 2001 11:43:27 -0700
Cc: bernds at redhat dot com, gcc at gcc dot gnu dot org, dje at watson dot ibm dot com, jason at cygnus dot com
References: <Pine.LNX.4.33.0106091122260.31029-100000@host140.cambridge.redhat.com> <20010609111705Q.mitchell@codesourcery.com>

On Sat, Jun 09, 2001 at 11:17:05AM -0700, Mark Mitchell wrote:
> Good.  Including the call to find_basic_blocks and the flags to
> life_analysis?

Yep.  CSE doesn't maintain the CFG while simplifying or eliminating
branches, so rebuilding it is necessary.  You do want to add a call
to cleanup_cfg though.  The flags to life_analysis are right.

I do suggest that we move this a bit earlier -- before the call to
renumber_insns.

r~

Follow-Ups:
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References:
- Re: Stepanov, PowerPC, life_analysis
  - From: Bernd Schmidt
- Re: Stepanov, PowerPC, life_analysis
  - From: Mark Mitchell

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