toplev.h
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toplev.c (floor_log2_wide): Replace loop with faster bit operations. · 73d10efa
* toplev.c (floor_log2_wide): Replace loop with faster bit operations. (exact_log2_wide): Define in terms of the above. * toplev.h (floor_log2): Use _builtin_clz family of builtins if available. From-SVN: r82778
DJ Delorie committed