Hi all,

As part of the war on conditional compilation here's an #if check on WORD_REGISTER_OPERATIONS that
seems to have been missed out.

Bootstrapped and tested on arm, aarch64, x86_64.

Is it still ok to commit these kinds of conditional compilation conversions?

Thanks,
Kyrill

2015-12-15  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

     * combine.c (simplify_comparison): Convert preprocessor check of
     WORD_REGISTER_OPERATIONS into runtime check.