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patch to solve PR64291

From: Vladimir Makarov <vmakarov at redhat dot com>
To: GCC Patches <gcc-patches at gcc dot gnu dot org>
Date: Thu, 18 Dec 2014 15:52:02 -0500
Subject: patch to solve PR64291
Authentication-results: sourceware.org; auth=none

  The following patch solves

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64291

  It is a bug in a new rematerialization subpass of LRA.

The patch was bootstrapped on x86/x86-64.

Committed as rev. 218874.

2014-12-18  Vladimir Makarov  <vmakarov@redhat.com>

        PR rtl-optimization/64291
        * lra-remat.c (bad_for_rematerialization_p): Add UNPSEC_VLOATILE.
        (create_cands): Process only output reload insn with potential
        cands.

2014-12-18  Vladimir Makarov  <vmakarov@redhat.com>

        PR rtl-optimization/64291
	* testsuite/gcc.target/i386/pr64291-[12].c: New tests.

Attachment: pr64291.patch
Description: Text document

Follow-Ups:
- Re: patch to solve PR64291
  - From: H.J. Lu

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