diff options
Diffstat (limited to 'security/nss/lib/freebl/verified/karamel/krmllib/dist/minimal/fstar_uint128_msvc.h')
-rw-r--r-- | security/nss/lib/freebl/verified/karamel/krmllib/dist/minimal/fstar_uint128_msvc.h | 571 |
1 files changed, 571 insertions, 0 deletions
diff --git a/security/nss/lib/freebl/verified/karamel/krmllib/dist/minimal/fstar_uint128_msvc.h b/security/nss/lib/freebl/verified/karamel/krmllib/dist/minimal/fstar_uint128_msvc.h new file mode 100644 index 0000000000..e9b366e259 --- /dev/null +++ b/security/nss/lib/freebl/verified/karamel/krmllib/dist/minimal/fstar_uint128_msvc.h @@ -0,0 +1,571 @@ +/* Copyright (c) INRIA and Microsoft Corporation. All rights reserved. + Licensed under the Apache 2.0 License. */ + +/* This file was generated by KaRaMeL <https://github.com/FStarLang/karamel> + * then hand-edited to use MSVC intrinsics KaRaMeL invocation: + * C:\users\barrybo\mitls2c\karamel\_build\src\Karamel.native -minimal -fnouint128 C:/users/barrybo/mitls2c/FStar/ulib/FStar.UInt128.fst -tmpdir ../secure_api/out/runtime_switch/uint128 -skip-compilation -add-include "krmllib0.h" -drop FStar.Int.Cast.Full -bundle FStar.UInt128=FStar.*,Prims + * F* version: 15104ff8 + * KaRaMeL version: 318b7fa8 + */ + +#ifndef FSTAR_UINT128_MSVC +#define FSTAR_UINT128_MSVC + +#include "krml/internal/types.h" +#include "FStar_UInt128.h" +#include "FStar_UInt_8_16_32_64.h" + +#ifndef _MSC_VER +#error This file only works with the MSVC compiler +#endif + +/* JP: need to rip out HAS_OPTIMIZED since the header guards in types.h are now + * done properly and only include this file when we know for sure we are on + * 64-bit MSVC. */ + +#if defined(_M_X64) && !defined(KRML_VERIFIED_UINT128) +#define HAS_OPTIMIZED 1 +#else +#define HAS_OPTIMIZED 0 +#endif + +// Define .low and .high in terms of the __m128i fields, to reduce +// the amount of churn in this file. +#if HAS_OPTIMIZED +#include <intrin.h> +#include <immintrin.h> +#define low m128i_u64[0] +#define high m128i_u64[1] +#endif + +inline static FStar_UInt128_uint128 +load128_le(uint8_t *b) +{ +#if HAS_OPTIMIZED + return _mm_loadu_si128((__m128i *)b); +#else + FStar_UInt128_uint128 lit; + lit.low = load64_le(b); + lit.high = load64_le(b + 8); + return lit; +#endif +} + +inline static void +store128_le(uint8_t *b, FStar_UInt128_uint128 n) +{ + store64_le(b, n.low); + store64_le(b + 8, n.high); +} + +inline static FStar_UInt128_uint128 +load128_be(uint8_t *b) +{ + uint64_t l = load64_be(b + 8); + uint64_t h = load64_be(b); +#if HAS_OPTIMIZED + return _mm_set_epi64x(h, l); +#else + FStar_UInt128_uint128 lit; + lit.low = l; + lit.high = h; + return lit; +#endif +} + +inline static void +store128_be(uint8_t *b, uint128_t n) +{ + store64_be(b, n.high); + store64_be(b + 8, n.low); +} + +inline static uint64_t +FStar_UInt128_constant_time_carry(uint64_t a, uint64_t b) +{ + return (a ^ (a ^ b | a - b ^ b)) >> (uint32_t)63U; +} + +inline static uint64_t +FStar_UInt128_carry(uint64_t a, uint64_t b) +{ + return FStar_UInt128_constant_time_carry(a, b); +} + +inline static FStar_UInt128_uint128 +FStar_UInt128_add(FStar_UInt128_uint128 a, FStar_UInt128_uint128 b) +{ +#if HAS_OPTIMIZED + uint64_t l, h; + + unsigned char carry = + _addcarry_u64(0, a.low, b.low, &l); // low/CF = a.low+b.low+0 + _addcarry_u64(carry, a.high, b.high, &h); // high = a.high+b.high+CF + return _mm_set_epi64x(h, l); +#else + FStar_UInt128_uint128 lit; + lit.low = a.low + b.low; + lit.high = a.high + b.high + FStar_UInt128_carry(a.low + b.low, b.low); + return lit; +#endif +} + +inline static FStar_UInt128_uint128 +FStar_UInt128_add_underspec(FStar_UInt128_uint128 a, FStar_UInt128_uint128 b) +{ +#if HAS_OPTIMIZED + return FStar_UInt128_add(a, b); +#else + FStar_UInt128_uint128 lit; + lit.low = a.low + b.low; + lit.high = a.high + b.high + FStar_UInt128_carry(a.low + b.low, b.low; + return lit; +#endif +} + +inline static FStar_UInt128_uint128 +FStar_UInt128_add_mod(FStar_UInt128_uint128 a, FStar_UInt128_uint128 b) +{ +#if HAS_OPTIMIZED + return FStar_UInt128_add(a, b); +#else + FStar_UInt128_uint128 lit; + lit.low = a.low + b.low; + lit.high = a.high + b.high + FStar_UInt128_carry(a.low + b.low, b.low); + return lit; +#endif +} + +inline static FStar_UInt128_uint128 +FStar_UInt128_sub(FStar_UInt128_uint128 a, FStar_UInt128_uint128 b) +{ +#if HAS_OPTIMIZED + uint64_t l, h; + + unsigned char borrow = _subborrow_u64(0, a.low, b.low, &l); + _subborrow_u64(borrow, a.high, b.high, &h); + return _mm_set_epi64x(h, l); +#else + FStar_UInt128_uint128 lit; + lit.low = a.low - b.low; + lit.high = a.high - b.high - FStar_UInt128_carry(a.low, a.low - b.low); + return lit; +#endif +} + +inline static FStar_UInt128_uint128 +FStar_UInt128_sub_underspec(FStar_UInt128_uint128 a, FStar_UInt128_uint128 b) +{ +#if HAS_OPTIMIZED + return FStar_UInt128_sub(a, b); +#else + FStar_UInt128_uint128 lit; + lit.low = a.low - b.low; + lit.high = a.high - b.high - FStar_UInt128_carry(a.low, a.low - b.low); + return lit; +#endif +} + +inline static FStar_UInt128_uint128 +FStar_UInt128_sub_mod_impl(FStar_UInt128_uint128 a, FStar_UInt128_uint128 b) +{ + FStar_UInt128_uint128 lit; + lit.low = a.low - b.low; + lit.high = a.high - b.high - FStar_UInt128_carry(a.low, a.low - b.low); + return lit; +} + +inline static FStar_UInt128_uint128 +FStar_UInt128_sub_mod(FStar_UInt128_uint128 a, FStar_UInt128_uint128 b) +{ +#if HAS_OPTIMIZED + return FStar_UInt128_sub(a, b); +#else + return FStar_UInt128_sub_mod_impl(a, b); +#endif +} + +inline static FStar_UInt128_uint128 +FStar_UInt128_logand(FStar_UInt128_uint128 a, FStar_UInt128_uint128 b) +{ +#if HAS_OPTIMIZED + return _mm_and_si128(a, b); +#else + FStar_UInt128_uint128 lit; + lit.low = a.low & b.low; + lit.high = a.high & b.high; + return lit; +#endif +} + +inline static FStar_UInt128_uint128 +FStar_UInt128_logxor(FStar_UInt128_uint128 a, FStar_UInt128_uint128 b) +{ +#if HAS_OPTIMIZED + return _mm_xor_si128(a, b); +#else + FStar_UInt128_uint128 lit; + lit.low = a.low ^ b.low; + lit.high = a.high ^ b.high; + return lit; +#endif +} + +inline static FStar_UInt128_uint128 +FStar_UInt128_logor(FStar_UInt128_uint128 a, FStar_UInt128_uint128 b) +{ +#if HAS_OPTIMIZED + return _mm_or_si128(a, b); +#else + FStar_UInt128_uint128 lit; + lit.low = a.low | b.low; + lit.high = a.high | b.high; + return lit; +#endif +} + +inline static FStar_UInt128_uint128 +FStar_UInt128_lognot(FStar_UInt128_uint128 a) +{ +#if HAS_OPTIMIZED + return _mm_andnot_si128(a, a); +#else + FStar_UInt128_uint128 lit; + lit.low = ~a.low; + lit.high = ~a.high; + return lit; +#endif +} + +static const uint32_t FStar_UInt128_u32_64 = (uint32_t)64U; + +inline static uint64_t +FStar_UInt128_add_u64_shift_left(uint64_t hi, uint64_t lo, uint32_t s) +{ + return (hi << s) + (lo >> FStar_UInt128_u32_64 - s); +} + +inline static uint64_t +FStar_UInt128_add_u64_shift_left_respec(uint64_t hi, uint64_t lo, uint32_t s) +{ + return FStar_UInt128_add_u64_shift_left(hi, lo, s); +} + +inline static FStar_UInt128_uint128 +FStar_UInt128_shift_left_small(FStar_UInt128_uint128 a, uint32_t s) +{ + if (s == (uint32_t)0U) + return a; + else { + FStar_UInt128_uint128 lit; + lit.low = a.low << s; + lit.high = FStar_UInt128_add_u64_shift_left_respec(a.high, a.low, s); + return lit; + } +} + +inline static FStar_UInt128_uint128 +FStar_UInt128_shift_left_large(FStar_UInt128_uint128 a, uint32_t s) +{ + FStar_UInt128_uint128 lit; + lit.low = (uint64_t)0U; + lit.high = a.low << s - FStar_UInt128_u32_64; + return lit; +} + +inline static FStar_UInt128_uint128 +FStar_UInt128_shift_left(FStar_UInt128_uint128 a, uint32_t s) +{ +#if HAS_OPTIMIZED + if (s == 0) { + return a; + } else if (s < FStar_UInt128_u32_64) { + uint64_t l = a.low << s; + uint64_t h = __shiftleft128(a.low, a.high, (unsigned char)s); + return _mm_set_epi64x(h, l); + } else { + return _mm_set_epi64x(a.low << (s - FStar_UInt128_u32_64), 0); + } +#else + if (s < FStar_UInt128_u32_64) + return FStar_UInt128_shift_left_small(a, s); + else + return FStar_UInt128_shift_left_large(a, s); +#endif +} + +inline static uint64_t +FStar_UInt128_add_u64_shift_right(uint64_t hi, uint64_t lo, uint32_t s) +{ + return (lo >> s) + (hi << FStar_UInt128_u32_64 - s); +} + +inline static uint64_t +FStar_UInt128_add_u64_shift_right_respec(uint64_t hi, uint64_t lo, uint32_t s) +{ + return FStar_UInt128_add_u64_shift_right(hi, lo, s); +} + +inline static FStar_UInt128_uint128 +FStar_UInt128_shift_right_small(FStar_UInt128_uint128 a, uint32_t s) +{ + if (s == (uint32_t)0U) + return a; + else { + FStar_UInt128_uint128 lit; + lit.low = FStar_UInt128_add_u64_shift_right_respec(a.high, a.low, s); + lit.high = a.high >> s; + return lit; + } +} + +inline static FStar_UInt128_uint128 +FStar_UInt128_shift_right_large(FStar_UInt128_uint128 a, uint32_t s) +{ + FStar_UInt128_uint128 lit; + lit.low = a.high >> s - FStar_UInt128_u32_64; + lit.high = (uint64_t)0U; + return lit; +} + +inline static FStar_UInt128_uint128 +FStar_UInt128_shift_right(FStar_UInt128_uint128 a, uint32_t s) +{ +#if HAS_OPTIMIZED + if (s == 0) { + return a; + } else if (s < FStar_UInt128_u32_64) { + uint64_t l = __shiftright128(a.low, a.high, (unsigned char)s); + uint64_t h = a.high >> s; + return _mm_set_epi64x(h, l); + } else { + return _mm_set_epi64x(0, a.high >> (s - FStar_UInt128_u32_64)); + } +#else + if (s < FStar_UInt128_u32_64) + return FStar_UInt128_shift_right_small(a, s); + else + return FStar_UInt128_shift_right_large(a, s); +#endif +} + +inline static bool +FStar_UInt128_eq(FStar_UInt128_uint128 a, FStar_UInt128_uint128 b) +{ + return a.low == b.low && a.high == b.high; +} + +inline static bool +FStar_UInt128_gt(FStar_UInt128_uint128 a, FStar_UInt128_uint128 b) +{ + return a.high > b.high || a.high == b.high && a.low > b.low; +} + +inline static bool +FStar_UInt128_lt(FStar_UInt128_uint128 a, FStar_UInt128_uint128 b) +{ + return a.high < b.high || a.high == b.high && a.low < b.low; +} + +inline static bool +FStar_UInt128_gte(FStar_UInt128_uint128 a, FStar_UInt128_uint128 b) +{ + return a.high > b.high || a.high == b.high && a.low >= b.low; +} + +inline static bool +FStar_UInt128_lte(FStar_UInt128_uint128 a, FStar_UInt128_uint128 b) +{ + return a.high < b.high || a.high == b.high && a.low <= b.low; +} + +inline static FStar_UInt128_uint128 +FStar_UInt128_eq_mask(FStar_UInt128_uint128 a, FStar_UInt128_uint128 b) +{ +#if HAS_OPTIMIZED + // PCMPW to produce 4 32-bit values, all either 0x0 or 0xffffffff + __m128i r32 = _mm_cmpeq_epi32(a, b); + // Shuffle 3,2,1,0 into 2,3,0,1 (swapping dwords inside each half) + __m128i s32 = _mm_shuffle_epi32(r32, _MM_SHUFFLE(2, 3, 0, 1)); + // Bitwise and to compute (3&2),(2&3),(1&0),(0&1) + __m128i ret64 = _mm_and_si128(r32, s32); + // Swap the two 64-bit values to form s64 + __m128i s64 = + _mm_shuffle_epi32(ret64, _MM_SHUFFLE(1, 0, 3, 2)); // 3,2,1,0 -> 1,0,3,2 + // And them together + return _mm_and_si128(ret64, s64); +#else + FStar_UInt128_uint128 lit; + lit.low = FStar_UInt64_eq_mask(a.low, b.low) & FStar_UInt64_eq_mask(a.high, b.high); + lit.high = FStar_UInt64_eq_mask(a.low, b.low) & FStar_UInt64_eq_mask(a.high, b.high); + return lit; +#endif +} + +inline static FStar_UInt128_uint128 +FStar_UInt128_gte_mask(FStar_UInt128_uint128 a, FStar_UInt128_uint128 b) +{ +#if HAS_OPTIMIZED && 0 + // ge - compare 3,2,1,0 for >= and generating 0 or 0xffffffff for each + // eq - compare 3,2,1,0 for == and generating 0 or 0xffffffff for each + // slot 0 = ge0 | (eq0 & ge1) | (eq0 & eq1 & ge2) | (eq0 & eq1 & eq2 & ge3) + // then splat slot 0 to 3,2,1,0 + __m128i gt = _mm_cmpgt_epi32(a, b); + __m128i eq = _mm_cmpeq_epi32(a, b); + __m128i ge = _mm_or_si128(gt, eq); + __m128i ge0 = ge; + __m128i eq0 = eq; + __m128i ge1 = _mm_srli_si128(ge, 4); // shift ge from 3,2,1,0 to 0x0,3,2,1 + __m128i t1 = _mm_and_si128(eq0, ge1); + __m128i ret = _mm_or_si128(ge, t1); // ge0 | (eq0 & ge1) is now in 0 + __m128i eq1 = _mm_srli_si128(eq, 4); // shift eq from 3,2,1,0 to 0x0,3,2,1 + __m128i ge2 = + _mm_srli_si128(ge1, 4); // shift original ge from 3,2,1,0 to 0x0,0x0,3,2 + __m128i t2 = + _mm_and_si128(eq0, _mm_and_si128(eq1, ge2)); // t2 = (eq0 & eq1 & ge2) + ret = _mm_or_si128(ret, t2); + __m128i eq2 = _mm_srli_si128(eq1, 4); // shift eq from 3,2,1,0 to 0x0,00,00,3 + __m128i ge3 = + _mm_srli_si128(ge2, 4); // shift original ge from 3,2,1,0 to 0x0,0x0,0x0,3 + __m128i t3 = _mm_and_si128( + eq0, _mm_and_si128( + eq1, _mm_and_si128(eq2, ge3))); // t3 = (eq0 & eq1 & eq2 & ge3) + ret = _mm_or_si128(ret, t3); + return _mm_shuffle_epi32( + ret, + _MM_SHUFFLE(0, 0, 0, 0)); // the result is in 0. Shuffle into all dwords. +#else + FStar_UInt128_uint128 lit; + lit.low = FStar_UInt64_gte_mask(a.high, b.high) & + ~FStar_UInt64_eq_mask(a.high, b.high) | + FStar_UInt64_eq_mask(a.high, b.high) & + FStar_UInt64_gte_mask(a.low, b.low); + lit.high = FStar_UInt64_gte_mask(a.high, b.high) & + ~FStar_UInt64_eq_mask(a.high, b.high) | + FStar_UInt64_eq_mask(a.high, b.high) & + FStar_UInt64_gte_mask(a.low, b.low); + return lit; +#endif +} + +inline static FStar_UInt128_uint128 +FStar_UInt128_uint64_to_uint128(uint64_t a) +{ +#if HAS_OPTIMIZED + return _mm_set_epi64x(0, a); +#else + FStar_UInt128_uint128 lit; + lit.low = a; + lit.high = (uint64_t)0U; + return lit; +#endif +} + +inline static uint64_t +FStar_UInt128_uint128_to_uint64(FStar_UInt128_uint128 a) +{ + return a.low; +} + +inline static uint64_t +FStar_UInt128_u64_mod_32(uint64_t a) +{ + return a & (uint64_t)0xffffffffU; +} + +static uint32_t FStar_UInt128_u32_32 = (uint32_t)32U; + +inline static uint64_t +FStar_UInt128_u32_combine(uint64_t hi, uint64_t lo) +{ + return lo + (hi << FStar_UInt128_u32_32); +} + +inline static FStar_UInt128_uint128 +FStar_UInt128_mul32(uint64_t x, uint32_t y) +{ +#if HAS_OPTIMIZED + uint64_t l, h; + l = _umul128(x, (uint64_t)y, &h); + return _mm_set_epi64x(h, l); +#else + FStar_UInt128_uint128 lit; + lit.low = FStar_UInt128_u32_combine( + (x >> FStar_UInt128_u32_32) * (uint64_t)y + + (FStar_UInt128_u64_mod_32(x) * (uint64_t)y >> + FStar_UInt128_u32_32), + FStar_UInt128_u64_mod_32(FStar_UInt128_u64_mod_32(x) * (uint64_t)y)); + lit.high = (x >> FStar_UInt128_u32_32) * (uint64_t)y + + (FStar_UInt128_u64_mod_32(x) * (uint64_t)y >> + FStar_UInt128_u32_32) >> + FStar_UInt128_u32_32; + return lit; +#endif +} + +/* Note: static headers bring scope collision issues when they define types! + * Because now client (karamel-generated) code will include this header and + * there might be type collisions if the client code uses quadruples of uint64s. + * So, we cannot use the karamel-generated name. */ +typedef struct K_quad_s { + uint64_t fst; + uint64_t snd; + uint64_t thd; + uint64_t f3; +} K_quad; + +inline static K_quad +FStar_UInt128_mul_wide_impl_t_(uint64_t x, uint64_t y) +{ + K_quad tmp; + tmp.fst = FStar_UInt128_u64_mod_32(x); + tmp.snd = FStar_UInt128_u64_mod_32( + FStar_UInt128_u64_mod_32(x) * FStar_UInt128_u64_mod_32(y)); + tmp.thd = x >> FStar_UInt128_u32_32; + tmp.f3 = (x >> FStar_UInt128_u32_32) * FStar_UInt128_u64_mod_32(y) + + (FStar_UInt128_u64_mod_32(x) * FStar_UInt128_u64_mod_32(y) >> + FStar_UInt128_u32_32); + return tmp; +} + +static uint64_t +FStar_UInt128_u32_combine_(uint64_t hi, uint64_t lo) +{ + return lo + (hi << FStar_UInt128_u32_32); +} + +inline static FStar_UInt128_uint128 +FStar_UInt128_mul_wide_impl(uint64_t x, uint64_t y) +{ + K_quad scrut = + FStar_UInt128_mul_wide_impl_t_(x, y); + uint64_t u1 = scrut.fst; + uint64_t w3 = scrut.snd; + uint64_t x_ = scrut.thd; + uint64_t t_ = scrut.f3; + FStar_UInt128_uint128 lit; + lit.low = FStar_UInt128_u32_combine_( + u1 * (y >> FStar_UInt128_u32_32) + FStar_UInt128_u64_mod_32(t_), w3); + lit.high = + x_ * (y >> FStar_UInt128_u32_32) + (t_ >> FStar_UInt128_u32_32) + + (u1 * (y >> FStar_UInt128_u32_32) + FStar_UInt128_u64_mod_32(t_) >> + FStar_UInt128_u32_32); + return lit; +} + +inline static FStar_UInt128_uint128 +FStar_UInt128_mul_wide(uint64_t x, uint64_t y) +{ +#if HAS_OPTIMIZED + uint64_t l, h; + l = _umul128(x, y, &h); + return _mm_set_epi64x(h, l); +#else + return FStar_UInt128_mul_wide_impl(x, y); +#endif +} + +#undef low +#undef high + +#endif |