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a lra patch

From: Vladimir Makarov <vmakarov at redhat dot com>
To: GCC Patches <gcc-patches at gcc dot gnu dot org>
Date: Fri, 24 May 2013 11:34:48 -0400
Subject: a lra patch

The following patch contains some changes needed for porting LRA tors6000 and s390.


The patch was successfully bootstrapped on x86/x86-64.

Committed as rev. 199298.

2013-05-24  Vladimir Makarov  <vmakarov@redhat.com>

        * lra-constraints.c (emit_spill_move): Use smaller mode for
        mem-mem moves.
        (check_and_process_move): Consider mem-reg moves for secondary
        too.
        (curr_insn_transform): Don't lose insns emitted before for
        secondary memory moves.
        (inherit_in_ebb): Mark defined reg.  Add usage only if it is not a
        reg set up in the current insn.

Attachment: lra.patch
Description: Text document

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