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Fixing a bunch of alloy clang issues.

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This commit is contained in:
Ben Vanik
2014-07-12 21:52:33 -07:00
parent 9b78dd977b
commit 7ee79318e8
13 changed files with 157 additions and 56 deletions
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30
src/poly/math.h
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@@ -25,6 +25,7 @@ namespace poly {
// return value is the size of the input operand (8, 16, 32, or 64). If the most
// significant bit of value is one, the return value is zero.
#if XE_COMPILER_MSVC
#if 1
inline uint8_t lzcnt(uint8_t v) {
return static_cast<uint8_t>(__lzcnt16(v) - 8);
}
@@ -32,6 +33,32 @@ inline uint8_t lzcnt(uint16_t v) { return static_cast<uint8_t>(__lzcnt16(v)); }
inline uint8_t lzcnt(uint32_t v) { return static_cast<uint8_t>(__lzcnt(v)); }
inline uint8_t lzcnt(uint64_t v) { return static_cast<uint8_t>(__lzcnt64(v)); }
#else
inline uint8_t lzcnt(uint8_t v) {
DWORD index;
DWORD mask = v;
BOOLEAN is_nonzero = _BitScanReverse(&index, mask);
return static_cast<uint8_t>(is_nonzero ? int8_t(index - 24) ^ 0x7 : 8);
}
inline uint8_t lzcnt(uint16_t v) {
DWORD index;
DWORD mask = v;
BOOLEAN is_nonzero = _BitScanReverse(&index, mask);
return static_cast<uint8_t>(is_nonzero ? int8_t(index - 16) ^ 0xF : 16);
}
inline uint8_t lzcnt(uint32_t v) {
DWORD index;
DWORD mask = v;
BOOLEAN is_nonzero = _BitScanReverse(&index, mask);
return static_cast<uint8_t>(is_nonzero ? int8_t(index) ^ 0x1F : 32);
}
inline uint8_t lzcnt(uint64_t v) {
DWORD index;
DWORD64 mask = v;
BOOLEAN is_nonzero = _BitScanReverse64(&index, mask);
return static_cast<uint8_t>(is_nonzero ? int8_t(index) ^ 0x3F : 64);
}
#endif // LZCNT supported
#else
inline uint8_t lzcnt(uint8_t v) {
return static_cast<uint8_t>(__builtin_clzs(v) - 8);
}
@@ -121,6 +148,9 @@ int64_t m128_i64(const __m128& v) {
return m128_i64<N>(_mm_castps_pd(v));
}
uint16_t float_to_half(float value);
float half_to_float(uint16_t value);
} // namespace poly
#endif // POLY_MATH_H_