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        * bitmap.c (bitmap_operation): Return true iff TO changed.
        (bitmap_equal_p): New.
        (bitmap_bit_p): Tidy arithmetic.
        (debug_bitmap_file): Likewise.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@29808 138bc75d-0d04-0410-961f-82ee72b054a4