diff options
Diffstat (limited to 'host-utils.h')
| -rw-r--r-- | host-utils.h | 236 |
1 files changed, 0 insertions, 236 deletions
diff --git a/host-utils.h b/host-utils.h deleted file mode 100644 index 821db93671..0000000000 --- a/host-utils.h +++ /dev/null @@ -1,236 +0,0 @@ -/* - * Utility compute operations used by translated code. - * - * Copyright (c) 2007 Thiemo Seufer - * Copyright (c) 2007 Jocelyn Mayer - * - * Permission is hereby granted, free of charge, to any person obtaining a copy - * of this software and associated documentation files (the "Software"), to deal - * in the Software without restriction, including without limitation the rights - * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell - * copies of the Software, and to permit persons to whom the Software is - * furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in - * all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, - * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN - * THE SOFTWARE. - */ - -#include "compiler.h" /* QEMU_GNUC_PREREQ */ - -#if defined(__x86_64__) -#define __HAVE_FAST_MULU64__ -static inline void mulu64(uint64_t *plow, uint64_t *phigh, - uint64_t a, uint64_t b) -{ - __asm__ ("mul %0\n\t" - : "=d" (*phigh), "=a" (*plow) - : "a" (a), "0" (b)); -} -#define __HAVE_FAST_MULS64__ -static inline void muls64(uint64_t *plow, uint64_t *phigh, - int64_t a, int64_t b) -{ - __asm__ ("imul %0\n\t" - : "=d" (*phigh), "=a" (*plow) - : "a" (a), "0" (b)); -} -#else -void muls64(uint64_t *phigh, uint64_t *plow, int64_t a, int64_t b); -void mulu64(uint64_t *phigh, uint64_t *plow, uint64_t a, uint64_t b); -#endif - -/* Binary search for leading zeros. */ - -static inline int clz32(uint32_t val) -{ -#if QEMU_GNUC_PREREQ(3, 4) - if (val) - return __builtin_clz(val); - else - return 32; -#else - int cnt = 0; - - if (!(val & 0xFFFF0000U)) { - cnt += 16; - val <<= 16; - } - if (!(val & 0xFF000000U)) { - cnt += 8; - val <<= 8; - } - if (!(val & 0xF0000000U)) { - cnt += 4; - val <<= 4; - } - if (!(val & 0xC0000000U)) { - cnt += 2; - val <<= 2; - } - if (!(val & 0x80000000U)) { - cnt++; - val <<= 1; - } - if (!(val & 0x80000000U)) { - cnt++; - } - return cnt; -#endif -} - -static inline int clo32(uint32_t val) -{ - return clz32(~val); -} - -static inline int clz64(uint64_t val) -{ -#if QEMU_GNUC_PREREQ(3, 4) - if (val) - return __builtin_clzll(val); - else - return 64; -#else - int cnt = 0; - - if (!(val >> 32)) { - cnt += 32; - } else { - val >>= 32; - } - - return cnt + clz32(val); -#endif -} - -static inline int clo64(uint64_t val) -{ - return clz64(~val); -} - -static inline int ctz32(uint32_t val) -{ -#if QEMU_GNUC_PREREQ(3, 4) - if (val) - return __builtin_ctz(val); - else - return 32; -#else - int cnt; - - cnt = 0; - if (!(val & 0x0000FFFFUL)) { - cnt += 16; - val >>= 16; - } - if (!(val & 0x000000FFUL)) { - cnt += 8; - val >>= 8; - } - if (!(val & 0x0000000FUL)) { - cnt += 4; - val >>= 4; - } - if (!(val & 0x00000003UL)) { - cnt += 2; - val >>= 2; - } - if (!(val & 0x00000001UL)) { - cnt++; - val >>= 1; - } - if (!(val & 0x00000001UL)) { - cnt++; - } - - return cnt; -#endif -} - -static inline int cto32(uint32_t val) -{ - return ctz32(~val); -} - -static inline int ctz64(uint64_t val) -{ -#if QEMU_GNUC_PREREQ(3, 4) - if (val) - return __builtin_ctzll(val); - else - return 64; -#else - int cnt; - - cnt = 0; - if (!((uint32_t)val)) { - cnt += 32; - val >>= 32; - } - - return cnt + ctz32(val); -#endif -} - -static inline int cto64(uint64_t val) -{ - return ctz64(~val); -} - -static inline int ctpop8(uint8_t val) -{ - val = (val & 0x55) + ((val >> 1) & 0x55); - val = (val & 0x33) + ((val >> 2) & 0x33); - val = (val & 0x0f) + ((val >> 4) & 0x0f); - - return val; -} - -static inline int ctpop16(uint16_t val) -{ - val = (val & 0x5555) + ((val >> 1) & 0x5555); - val = (val & 0x3333) + ((val >> 2) & 0x3333); - val = (val & 0x0f0f) + ((val >> 4) & 0x0f0f); - val = (val & 0x00ff) + ((val >> 8) & 0x00ff); - - return val; -} - -static inline int ctpop32(uint32_t val) -{ -#if QEMU_GNUC_PREREQ(3, 4) - return __builtin_popcount(val); -#else - val = (val & 0x55555555) + ((val >> 1) & 0x55555555); - val = (val & 0x33333333) + ((val >> 2) & 0x33333333); - val = (val & 0x0f0f0f0f) + ((val >> 4) & 0x0f0f0f0f); - val = (val & 0x00ff00ff) + ((val >> 8) & 0x00ff00ff); - val = (val & 0x0000ffff) + ((val >> 16) & 0x0000ffff); - - return val; -#endif -} - -static inline int ctpop64(uint64_t val) -{ -#if QEMU_GNUC_PREREQ(3, 4) - return __builtin_popcountll(val); -#else - val = (val & 0x5555555555555555ULL) + ((val >> 1) & 0x5555555555555555ULL); - val = (val & 0x3333333333333333ULL) + ((val >> 2) & 0x3333333333333333ULL); - val = (val & 0x0f0f0f0f0f0f0f0fULL) + ((val >> 4) & 0x0f0f0f0f0f0f0f0fULL); - val = (val & 0x00ff00ff00ff00ffULL) + ((val >> 8) & 0x00ff00ff00ff00ffULL); - val = (val & 0x0000ffff0000ffffULL) + ((val >> 16) & 0x0000ffff0000ffffULL); - val = (val & 0x00000000ffffffffULL) + ((val >> 32) & 0x00000000ffffffffULL); - - return val; -#endif -} |