On 08/03/2011 11:30 AM, Alexander Monakov wrote:
From: Dmitry Melnik<d...@ispras.ru>

This patch prevents duplicating (as bookkeeping code) instructions that are
either volatile or recognized by cannot_copy_insn_p target hook (in addition
to already present restrictions).  This avoids generating incorrect assembler
with duplicate labels on ARM.

2011-08-04  Dmitry Melnik<d...@ispras.ru>

        * sel-sched-ir.c (init_global_and_expr_for_insn): Forbid copying of
        recognized by cannot_copy_insn_p hook and volatile instructions.
OK, thanks.

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