{ "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 \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 \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(a);\n _kd.b = static_cast(b);\n _kd.lmt = static_cast(a) + n;\n _kd.checksum = 0;\n inner_loop_034(&_kd);\n *static_cast(res_out) = _kd.checksum;\n return 0;\n}\n" }, { "path": "kernel.cpp", "content": "#include \"loop_034.h\"\n#include \n#include \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." }