21 #ifndef AVUTIL_X86_INTMATH_H 22 #define AVUTIL_X86_INTMATH_H 29 #elif defined(__INTEL_COMPILER) 30 #include <immintrin.h> 36 #if (defined(__INTEL_COMPILER) && (__INTEL_COMPILER>=1216)) || defined(_MSC_VER) 37 # if defined(__INTEL_COMPILER) 38 # define ff_log2(x) (_bit_scan_reverse((x)|1)) 40 # define ff_log2 ff_log2_x86 44 _BitScanReverse(&n, v|1);
48 # define ff_log2_16bit av_log2 50 #if defined(__INTEL_COMPILER) || (defined(_MSC_VER) && (_MSC_VER >= 1700)) 51 # define ff_ctz(v) _tzcnt_u32(v) 54 # define ff_ctzll(v) _tzcnt_u64(v) 56 # define ff_ctzll ff_ctzll_x86 59 return ((uint32_t)v == 0) ? _tzcnt_u32((uint32_t)(v >> 32)) + 32 : _tzcnt_u32((uint32_t)v);
73 #if defined(__POPCNT__) 74 #define av_popcount __builtin_popcount 76 #define av_popcount64 __builtin_popcountll 83 #if AV_GCC_VERSION_AT_LEAST(5,1) 84 #define av_mod_uintp2 __builtin_ia32_bzhi_si 89 #define av_mod_uintp2 av_mod_uintp2_bmi2 93 return a & ((1 << p) - 1);
96 __asm__ (
"bzhi %2, %1, %0 \n\t" :
"=r"(x) :
"rm"(a),
"r"(p));
104 #if defined(__SSE2__) && !defined(__INTEL_COMPILER) 106 #define av_clipd av_clipd_sse2 109 #if defined(ASSERT_LEVEL) && ASSERT_LEVEL >= 2 110 if (amin > amax) abort();
112 __asm__ (
"minsd %2, %0 \n\t" 114 :
"+&x"(a) :
"xm"(amin),
"xm"(amax));
120 #if defined(__SSE__) && !defined(__INTEL_COMPILER) 122 #define av_clipf av_clipf_sse 125 #if defined(ASSERT_LEVEL) && ASSERT_LEVEL >= 2 126 if (amin > amax) abort();
128 __asm__ (
"minss %2, %0 \n\t" 130 :
"+&x"(a) :
"xm"(amin),
"xm"(amax));
#define av_builtin_constant_p