[PATCH, AArch64] Use GCC builtins to count leading/tailing zeros
Tue Jan 7 16:35:00 GMT 2014
This patch is to sync up include/longlong.h with its glibc peer after
the proposed change here:
The patch defines a number of macros in stdlib/longlong.h to use GCC
builtins __builtin_clz* to implement the __clz* and __ctz* functions on
OK for the mainline?
* longlong.h (count_leading_zeros, count_trailing_zeros)
(COUNT_LEADING_ZEROS_0): Define for aarch64.
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