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Re: RFA: Compare Elimination Pass: Fix use of dataflow info

From: Paolo Bonzini <bonzini at gnu dot org>
To: Nick Clifton <nickc at redhat dot com>
Cc: rth at redhat dot com, gcc-patches at gcc dot gnu dot org
Date: Fri, 07 Oct 2011 12:29:31 +0200
Subject: Re: RFA: Compare Elimination Pass: Fix use of dataflow info
References: <m3obxt9kvh.fsf@redhat.com>

On 10/07/2011 12:06 PM, Nick Clifton wrote:

-  df_analyze ();
-
    gcc_checking_assert (all_compares == NULL);

Ok except that this particular df_analyze should stay. If it doesn't fix the bug, please try the parts of rth's patch that add the gate and the TODO_df_finish flag.

Paolo

References:
- RFA: Compare Elimination Pass: Fix use of dataflow info
  - From: Nick Clifton

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