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Re: RFA: patch to fix PR37535

From: Jeff Law <law at redhat dot com>
To: Vladimir Makarov <vmakarov at redhat dot com>
Cc: gcc-patches <gcc-patches at gcc dot gnu dot org>, Richard Sandiford <rdsandiford at googlemail dot com>, "H.J. Lu" <hjl dot tools at gmail dot com>
Date: Thu, 25 Sep 2008 13:47:01 -0600
Subject: Re: RFA: patch to fix PR37535
References: <48DAE064.50304@redhat.com>

Vladimir Makarov wrote:

I promised to check the 2nd version of the patch I sent two days ago. I checked it on ppc, x86, x86_64, and itanium (bootstrap and gcc torture testsuite). The results look good now. I also added a change in gcc documentation about RA behaviour on clobbers.

OK to commit to the trunk?

2008-09-24 Vladimir Makarov <vmakarov@redhat.com>

PR middle-end/37535
   * ira-lives.c (mark_reg_live, mark_reg_dead): New functions.
   (mark_ref_live, mark_ref_dead): Use them.
   (def_conflicts_with_inputs_p): Remove.
   (mark_early_clobbers): New function.
   (process_bb_node_lives): Call preprocess_constraints and
   mark_early_clobbers.
* doc/rtx.texi (clobber): Change how RA deals with clobbers.

OK.

Jeff

References:
- RFA: patch to fix PR37535
  - From: Vladimir Makarov

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