| { | |
| "name": "reference_loop_034", | |
| "definition": "loop_034", | |
| "dataset": "simd-loop", | |
| "author": "reference", | |
| "spec": { | |
| "language": "cpp", | |
| "target_hardware": [ | |
| "aarch64" | |
| ], | |
| "entry_point": "kernel.cpp::inner_loop_034", | |
| "dependencies": [], | |
| "isa_features": [], | |
| "compile_flags": [ | |
| "-O2", | |
| "-std=c++14", | |
| "-fno-vectorize", | |
| "-fno-slp-vectorize" | |
| ], | |
| "link_flags": [] | |
| }, | |
| "sources": [ | |
| { | |
| "path": "loop_034.h", | |
| "content": "// Auto-generated by scripts/gen_simd_loop_harness.py \u2014 do not hand-edit.\n#pragma once\n#include <stdint.h>\n\nstruct loop_034_data {\n uint8_t *a;\n uint8_t *b;\n uint8_t *lmt;\n uint32_t checksum;\n};\n\n#ifdef __cplusplus\nextern \"C\" {\n#endif\nint armbench_entry_loop_034(void *a, void *b, int64_t n, void *res_out);\n#ifdef __cplusplus\n}\n#endif\n" | |
| }, | |
| { | |
| "path": "loop_034.cpp", | |
| "content": "// Auto-generated by scripts/gen_simd_loop_harness.py \u2014 do not hand-edit.\n#include \"loop_034.h\"\n#include <stdint.h>\n\nextern \"C\" void inner_loop_034(struct loop_034_data *data);\n\nextern \"C\" int armbench_entry_loop_034(void *a, void *b, int64_t n, void *res_out) {\n struct loop_034_data _kd;\n _kd.a = static_cast<uint8_t *>(a);\n _kd.b = static_cast<uint8_t *>(b);\n _kd.lmt = static_cast<uint8_t *>(a) + n;\n _kd.checksum = 0;\n inner_loop_034(&_kd);\n *static_cast<uint32_t *>(res_out) = _kd.checksum;\n return 0;\n}\n" | |
| }, | |
| { | |
| "path": "kernel.cpp", | |
| "content": "#include \"loop_034.h\"\n#include <cstring>\n#include <stdint.h>\n\nextern \"C\" void inner_loop_034(struct loop_034_data *data) {\n uint8_t *p1 = data->a; uint8_t *p2 = data->b; uint8_t *lmt = data->lmt;\n uint32_t res = 0, cnt = 0; int length = 13;\n while (p1 < lmt) {\n int64_t r = strcmp((const char *)p1, (const char *)p2);\n uint32_t cmp = 1; if (r > 0) cmp = 2; if (r < 0) cmp = 3;\n res += cnt * cmp; p1 += length; p2 += length; cnt++;\n length = 3 + (length + 11) % 43;\n }\n data->checksum = res;\n}\n" | |
| } | |
| ], | |
| "description": "Scalar reference (auto-vectorization disabled) for loop_034. Baseline for speedup measurement." | |
| } | |