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loop optimizations, mark 13


Changes of note in this version:

  * Fixed a bug in which only the first insn of a multi-part
    movable was examined.  This caused spec failures on Alpha.

  * Intiuts down to SYMBOL_REFs if we can get at them, including
    breaking apart (const (symbol_ref) (const_int)).  This helped
    some x86 loops I was looking at significantly.  This should
    help any arch with ptr_mode immediate offsets with programs
    with large COMMON blocks.


r~

d-loop-13.gz


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