1 files changed, 0 insertions, 127 deletions
diff --git a/1/part2_fast.c b/1/part2_fast.c
deleted file mode 100644
index c32f881..0000000
--- a/1/part2_fast.c
+++ /dev/null
@@ -1,127 +0,0 @@
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <immintrin.h>
-
-#define INPUT_LEN 200
-#define SEARCH 2020
-
-#ifdef USE_ASM
-int repair_avx_inner(const int *arr, __m256i search);
-#else
-int repair_avx_inner(const int *arr, __m256i search)
-{
-    for (int k = 0; k < INPUT_LEN; k += 8) {
-        __m256i new = _mm256_loadu_si256((__m256i *)(&arr[k]));
-        if (_mm256_movemask_epi8(_mm256_cmpeq_epi32(new, search))) {
-            return _mm256_extract_epi32(search, 0);
-        }
-    }
-
-    return 0;
-}
-#endif
-
-int repair_avx(const int *arr)
-{
-    __m256i search = _mm256_set1_epi32(SEARCH);
-    for (int i = 0; i < INPUT_LEN; i++) {
-        __m256i start = _mm256_set1_epi32(arr[i]);
-        for (int j = 0; j < INPUT_LEN; j += 8) {
-            __m256i new = _mm256_loadu_si256((__m256i *)(&arr[j]));
-            new = _mm256_add_epi32(start, new);
-            unsigned int mask = (unsigned int)_mm256_movemask_epi8(_mm256_cmpgt_epi32(new, search));
-            if (mask == 0xffffffff) {
-                continue;
-            }
-
-            switch (__lzcnt32(mask) / 4) {
-                case 0:
-                    {
-                        __m256i cmp = _mm256_sub_epi32(search, _mm256_permutevar8x32_epi32(new, _mm256_set1_epi32(7)));
-                        int tmp = repair_avx_inner(arr, cmp);
-                        if (tmp) {
-                            return tmp * arr[i] * arr[j + 7];
-                        }
-                    }
-                case 1:
-                    if ((mask & 0x0f000000) == 0) {
-                        __m256i cmp = _mm256_sub_epi32(search, _mm256_permutevar8x32_epi32(new, _mm256_set1_epi32(6)));
-                        int tmp = repair_avx_inner(arr, cmp);
-                        if (tmp) {
-                            return tmp * arr[i] * arr[j + 6];
-                        }
-                    }
-                case 2:
-                    if ((mask & 0x00f00000) == 0 ){
-                        __m256i cmp = _mm256_sub_epi32(search, _mm256_permutevar8x32_epi32(new, _mm256_set1_epi32(5)));
-                        int tmp = repair_avx_inner(arr, cmp);
-                        if (tmp) {
-                            return tmp * arr[i] * arr[j + 5];
-                        }
-                    }
-                case 3:
-                    if ((mask & 0x000f0000) == 0) {
-                        __m256i cmp = _mm256_sub_epi32(search, _mm256_permutevar8x32_epi32(new, _mm256_set1_epi32(4)));
-                        int tmp = repair_avx_inner(arr, cmp);
-                        if (tmp) {
-                            return tmp * arr[i] * arr[j + 4];
-                        }
-                    }
-                case 4:
-                    if ((mask & 0x0000f000) == 0) {
-                        __m256i cmp = _mm256_sub_epi32(search, _mm256_permutevar8x32_epi32(new, _mm256_set1_epi32(3)));
-                        int tmp = repair_avx_inner(arr, cmp);
-                        if (tmp) {
-                            return tmp * arr[i] * arr[j + 3];
-                        }
-                    }
-                case 5:
-                    if ((mask & 0x00000f00) == 0) {
-                        __m256i cmp = _mm256_sub_epi32(search, _mm256_permutevar8x32_epi32(new, _mm256_set1_epi32(2)));
-                        int tmp = repair_avx_inner(arr, cmp);
-                        if (tmp) {
-                            return tmp * arr[i] * arr[j + 2];
-                        }
-                    }
-                case 6:
-                    if ((mask & 0x000000f0) == 0) {
-                        __m256i cmp = _mm256_sub_epi32(search, _mm256_permutevar8x32_epi32(new, _mm256_set1_epi32(1)));
-                        int tmp = repair_avx_inner(arr, cmp);
-                        if (tmp) {
-                            return tmp * arr[i] * arr[j + 1];
-                        }
-                    }
-                case 7:
-                    if ((mask & 0x0000000f) == 0) {
-                        __m256i cmp = _mm256_sub_epi32(search, _mm256_permutevar8x32_epi32(new, _mm256_setzero_si256()));
-                        int tmp = repair_avx_inner(arr, cmp);
-                        if (tmp) {
-                            return tmp * arr[i] * arr[j];
-                        }
-                    }
-            }
-        }
-    }
-
-    return 0;
-}
-
-int main(int argc, char *argv[])
-{
-    FILE *file = fopen(argv[argc - 1], "r");
-    if (!file) {
-        return 1;
-    }
-
-    char buffer[8] = { 0 };
-    int input[INPUT_LEN] = { 0 };
-    for (int i = 0; i < 200; i++) {
-        fgets(buffer, 8, file);
-        input[i] = atoi(buffer);
-    }
-
-    fclose(file);
-
-    printf("%i\n", repair_avx(input));
-}