Lines Matching defs:Scene
47 # pragma intrinsic _BitScanReverse64
48 # define COUNT_LEADING_ZEROS(BUILTIN, MSC_BUILTIN, TYPE) \
49 do \
50 { \
56 # define COUNT_LEADING_ZEROS(BUILTIN, MSC_BUILTIN, TYPE) \
61 if (! x) \
67 count += 32) \
70 } \
76 count_leading_zeros_32 (unsigned int x)
87 x |= x >> 4;
90 return de_Bruijn_lookup[((x * 0x07c4acddU) & 0xffffffffU) >> 27];
94 /* Compute and return the number of leading zeros in X. */
105 COUNT_LEADING_ZEROS (__builtin_clzl, _BitScanReverse, unsigned long int);
108 /* Compute and return the number of leading zeros in X. */
120 _GL_INLINE_HEADER_END