| /* { dg-do compile { target { ! ia32 } } } */ |
| /* { dg-options "-O2 -march=sandybridge" } */ |
| |
| #include <stdint.h> |
| #include <string.h> |
| |
| static const char b100_tab[200] = { |
| '0', '0', '0', '1', '0', '2', '0', '3', '0', '4', |
| '0', '5', '0', '6', '0', '7', '0', '8', '0', '9', |
| '1', '0', '1', '1', '1', '2', '1', '3', '1', '4', |
| '1', '5', '1', '6', '1', '7', '1', '8', '1', '9', |
| '2', '0', '2', '1', '2', '2', '2', '3', '2', '4', |
| '2', '5', '2', '6', '2', '7', '2', '8', '2', '9', |
| '3', '0', '3', '1', '3', '2', '3', '3', '3', '4', |
| '3', '5', '3', '6', '3', '7', '3', '8', '3', '9', |
| '4', '0', '4', '1', '4', '2', '4', '3', '4', '4', |
| '4', '5', '4', '6', '4', '7', '4', '8', '4', '9', |
| '5', '0', '5', '1', '5', '2', '5', '3', '5', '4', |
| '5', '5', '5', '6', '5', '7', '5', '8', '5', '9', |
| '6', '0', '6', '1', '6', '2', '6', '3', '6', '4', |
| '6', '5', '6', '6', '6', '7', '6', '8', '6', '9', |
| '7', '0', '7', '1', '7', '2', '7', '3', '7', '4', |
| '7', '5', '7', '6', '7', '7', '7', '8', '7', '9', |
| '8', '0', '8', '1', '8', '2', '8', '3', '8', '4', |
| '8', '5', '8', '6', '8', '7', '8', '8', '8', '9', |
| '9', '0', '9', '1', '9', '2', '9', '3', '9', '4', |
| '9', '5', '9', '6', '9', '7', '9', '8', '9', '9', |
| }; |
| |
| void uint64_to_ascii_ta7_32_base100(uint64_t val, char *dst) { |
| const int64_t POW10_10 = ((int64_t)10) * 1000 * 1000 * 1000; |
| const uint64_t POW2_57_DIV_POW100_4 = |
| ((int64_t)(1) << 57) / 100 / 100 / 100 / 100 + 1; |
| const uint64_t MASK32 = ((int64_t)(1) << 32) - 1; |
| int64_t hix = val / POW10_10; |
| int64_t lox = val % POW10_10; |
| int64_t lor = lox & (uint64_t)(-2); |
| uint64_t hi = hix * POW2_57_DIV_POW100_4; |
| uint64_t lo = lor * POW2_57_DIV_POW100_4; |
| memcpy(dst + 0 * 10 + 0, &b100_tab[(hi >> 57) * 2], 2); |
| memcpy(dst + 1 * 10 + 0, &b100_tab[(lo >> 57) * 2], 2); |
| hi = (hi >> 25) + 1; |
| lo = (lo >> 25) + 1; |
| hi = (hi & MASK32) * 100; |
| lo = (lo & MASK32) * 100; |
| memcpy(dst + 0 * 10 + 2, &b100_tab[(hi >> 32) * 2], 2); |
| hi = (hi & MASK32) * 100; |
| memcpy(dst + 1 * 10 + 2, &b100_tab[(lo >> 32) * 2], 2); |
| lo = (lo & MASK32) * 100; |
| memcpy(dst + 0 * 10 + 4, &b100_tab[(hi >> 32) * 2], 2); |
| hi = (hi & MASK32) * 100; |
| memcpy(dst + 1 * 10 + 4, &b100_tab[(lo >> 32) * 2], 2); |
| lo = (lo & MASK32) * 100; |
| memcpy(dst + 0 * 10 + 6, &b100_tab[(hi >> 32) * 2], 2); |
| hi = (hi & MASK32) * 100; |
| memcpy(dst + 1 * 10 + 6, &b100_tab[(lo >> 32) * 2], 2); |
| lo = (lo & MASK32) * 100; |
| hi >>= 32; |
| lo >>= 32; |
| lo = (lo & (-2)) | (lox & 1); |
| memcpy(dst + 0 * 10 + 8, &b100_tab[hi * 2], 2); |
| memcpy(dst + 1 * 10 + 8, &b100_tab[lo * 2], 2); |
| dst[2 * 10] = 0; |
| } |
| |
| /* { dg-final { scan-assembler-times "imulq" 11 } } */ |