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+Mon Jul 15 10:45:09 2013 Tanaka Akira <akr@fsij.org>
+
+ * bignum.c (nlz16): Use __builtin_clz if possible.
+ (nlz32): Use __builtin_clz or __builtin_clzl if possible.
+ (nlz64): Use __builtin_clzl or __builtin_clzll if possible.
+ (nlz128): Use __builtin_clzll if possible.
+
+ * configure.in: Check __builtin_clz, __builtin_clzl and
+ __builtin_clzll.
+
Mon Jul 15 09:39:07 2013 Tanaka Akira <akr@fsij.org>
* bignum.c (power_cache_get_power): Use bitsize instead of ceil_log2.