| 1 | #include "popcount.h" | 
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| 2 |  | 
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| 3 | static const uint8_t PopCountLUT8Impl[1 << 8] = { | 
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| 4 | #define B2(n) n, n + 1, n + 1, n + 2 | 
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| 5 | #define B4(n) B2(n), B2(n + 1), B2(n + 1), B2(n + 2) | 
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| 6 | #define B6(n) B4(n), B4(n + 1), B4(n + 1), B4(n + 2) | 
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| 7 | B6(0), B6(1), B6(1), B6(2)}; | 
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| 8 |  | 
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| 9 | uint8_t const* PopCountLUT8 = PopCountLUT8Impl; | 
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| 10 |  | 
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| 11 | #if !defined(_MSC_VER) | 
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| 12 | //ICE here for msvc | 
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| 13 |  | 
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| 14 | static const uint8_t PopCountLUT16Impl[1 << 16] = { | 
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| 15 | #define B2(n) n, n + 1, n + 1, n + 2 | 
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| 16 | #define B4(n) B2(n), B2(n + 1), B2(n + 1), B2(n + 2) | 
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| 17 | #define B6(n) B4(n), B4(n + 1), B4(n + 1), B4(n + 2) | 
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| 18 | #define B8(n) B6(n), B6(n + 1), B6(n + 1), B6(n + 2) | 
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| 19 | #define B10(n) B8(n), B8(n + 1), B8(n + 1), B8(n + 2) | 
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| 20 | #define B12(n) B10(n), B10(n + 1), B10(n + 1), B10(n + 2) | 
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| 21 | #define B14(n) B12(n), B12(n + 1), B12(n + 1), B12(n + 2) | 
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| 22 | B14(0), B14(1), B14(1), B14(2)}; | 
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| 23 |  | 
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| 24 | uint8_t const* PopCountLUT16 = PopCountLUT16Impl; | 
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| 25 | #endif | 
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| 26 |  | 
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