ADTarm-ehast-experimentalenumforall-pointer-decayjacob/cs343-translationnew-ast-unique-exprpthread-emulationqualifiedEnum
Last change
on this file since 2bb2d3f1 was
7812a7b5,
checked in by Thierry Delisle <tdelisle@…>, 4 years ago
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Fixed errors and warning with x86 build
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-
Property mode set to
100644
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File size:
1.5 KB
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Rev | Line | |
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[13c5e19] | 1 | #pragma once |
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| 2 | |
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| 3 | #include <stdint.h> |
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| 4 | |
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| 5 | //-------------------------------------------------- |
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[7812a7b5] | 6 | #if defined(__SIZEOF_INT128__) |
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| 7 | typedef __uint128_t __lehmer64_state_t; |
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| 8 | static inline uint64_t __lehmer64( __lehmer64_state_t & state ) { |
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| 9 | state *= 0xda942042e4dd58b5; |
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| 10 | return state >> 64; |
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| 11 | } |
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[13c5e19] | 12 | |
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| 13 | //-------------------------------------------------- |
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[7812a7b5] | 14 | typedef uint64_t __wyhash64_state_t; |
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| 15 | static inline uint64_t __wyhash64( __wyhash64_state_t & state ) { |
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| 16 | state += 0x60bee2bee120fc15; |
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| 17 | __uint128_t tmp; |
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| 18 | tmp = (__uint128_t) state * 0xa3b195354a39b70d; |
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| 19 | uint64_t m1 = (tmp >> 64) ^ tmp; |
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| 20 | tmp = (__uint128_t)m1 * 0x1b03738712fad5c9; |
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| 21 | uint64_t m2 = (tmp >> 64) ^ tmp; |
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| 22 | return m2; |
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| 23 | } |
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| 24 | #endif |
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[13c5e19] | 25 | |
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| 26 | //-------------------------------------------------- |
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| 27 | typedef uint64_t __xorshift64_state_t; |
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| 28 | static inline uint64_t __xorshift64( __xorshift64_state_t & state ) { |
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| 29 | uint64_t x = state; |
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| 30 | x ^= x << 13; |
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| 31 | x ^= x >> 7; |
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| 32 | x ^= x << 17; |
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| 33 | return state = x; |
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| 34 | } |
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| 35 | |
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| 36 | //-------------------------------------------------- |
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| 37 | typedef struct { |
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| 38 | uint32_t a, b, c, d; |
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| 39 | uint32_t counter; |
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| 40 | } __xorwow__state_t; |
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| 41 | |
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| 42 | /* The state array must be initialized to not be all zero in the first four words */ |
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| 43 | static inline uint32_t __xorwow( __xorwow__state_t & state ) { |
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| 44 | /* Algorithm "xorwow" from p. 5 of Marsaglia, "Xorshift RNGs" */ |
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| 45 | uint32_t t = state.d; |
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| 46 | |
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| 47 | uint32_t const s = state.a; |
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| 48 | state.d = state.c; |
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| 49 | state.c = state.b; |
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| 50 | state.b = s; |
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| 51 | |
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| 52 | t ^= t >> 2; |
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| 53 | t ^= t << 1; |
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| 54 | t ^= s ^ (s << 4); |
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| 55 | state.a = t; |
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| 56 | |
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| 57 | state.counter += 362437; |
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| 58 | return t + state.counter; |
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| 59 | } |
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