[PATCH][TUPLES] Tuplification of tree-ssa-math-opts.c

["=?big5?b?RG91ZyBLd2FuICjD9q62vHcp?=" <dougkwan at google dot com>]

Hi Deigo,

     This patch tuplifies tree-ssa-math-opts.c and re-enables the 3
passes there.  It breaks no existing passing tests and fixes 11 tests.

-Doug

2008-04-04  Doug Kwan  <dougkwan@google.com>

        * tree-ssa-math-opts.c (struct occurrence): Change field type of
        recip_def_stmt to gimple.
        (is_division_by): Tuplify.
        (insert_reciprocals): Tuplify.
        (replace_reciprocals): Tuplify.
        (execute_cse_reciprocals_1): Tuplify.
        (execute_cse_reciprocals): Tuplify.
        (maybe_record_sincos): Use vector of gimples instead of vector of
        trees.
        (execute_cse_sincos_1): Tuplify.  When adjusting recorded old call
        sites, generate new gimple assign staetments and remove old gimple
        call statements.
        (execute_cse_sincos): Tuplify.
        (execute_convert_to_rsqrt): Tuplify.
        * passes.c (init_optimization_passes): Enable pass_cse_sincos,
        pass_cse_reciprocals and pass_convert_to_rsqrt.

Attachment: patch.txt
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