Update Opus to 1.0.2.

celt/ecintrin.h

 /* Copyright (c) 2003-2008 Timothy B. Terriberry
    Copyright (c) 2008 Xiph.Org Foundation */
 /*
    Redistribution and use in source and binary forms, with or without
    modification, are permitted provided that the following conditions
    are met:
 
    - Redistributions of source code must retain the above copyright
    notice, this list of conditions and the following disclaimer.
 
@@ skipping 30 matching lines @@
 /*Modern gcc (4.x) can compile the naive versions of min and max with cmov if
    given an appropriate architecture, but the branchless bit-twiddling versions
    are just as fast, and do not require any special target architecture.
   Earlier gcc versions (3.x) compiled both code to the same assembly
    instructions, because of the way they represented ((_b)>(_a)) internally.*/
 # define EC_MINI(_a,_b)      ((_a)+(((_b)-(_a))&-((_b)<(_a))))
 
 /*Count leading zeros.
   This macro should only be used for implementing ec_ilog(), if it is defined.
   All other code should use EC_ILOG() instead.*/
-#if defined(_MSC_VER)
+#if defined(_MSC_VER) && (_MSC_VER >= 1400)
 # include <intrin.h>
 /*In _DEBUG mode this is not an intrinsic by default.*/
 # pragma intrinsic(_BitScanReverse)
 
 static __inline int ec_bsr(unsigned long _x){
   unsigned long ret;
   _BitScanReverse(&ret,_x);
   return (int)ret;
 }
 # define EC_CLZ0    (1)
@@ skipping 16 matching lines @@
 /*Note that __builtin_clz is not defined when _x==0, according to the gcc
    documentation (and that of the BSR instruction that implements it on x86).
   The majority of the time we can never pass it zero.
   When we need to, it can be special cased.*/
 # define EC_ILOG(_x) (EC_CLZ0-EC_CLZ(_x))
 #else
 int ec_ilog(opus_uint32 _v);
 # define EC_ILOG(_x) (ec_ilog(_x))
 #endif
 #endif