{
  "name": "reference_loop_221",
  "definition": "loop_221",
  "dataset": "simd-loop",
  "author": "reference",
  "spec": {
    "language": "cpp",
    "target_hardware": [
      "aarch64"
    ],
    "entry_point": "kernel.cpp::inner_loop_221",
    "dependencies": [],
    "isa_features": [],
    "compile_flags": [
      "-O2",
      "-std=c++14",
      "-fno-vectorize",
      "-fno-slp-vectorize"
    ],
    "link_flags": []
  },
  "sources": [
    {
      "path": "loop_221.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_221_data {\n    uint64_t m;\n    uint64_t n;\n    double *a;\n    double *x;\n    double *b;\n};\n\n#ifdef __cplusplus\nextern \"C\" {\n#endif\nint armbench_entry_loop_221(void *a, void *x, int64_t m, int64_t n, void *res_out);\n#ifdef __cplusplus\n}\n#endif\n"
    },
    {
      "path": "loop_221.cpp",
      "content": "// Auto-generated by scripts/gen_simd_loop_harness.py \u2014 do not hand-edit.\n#include \"loop_221.h\"\n#include <stdint.h>\n\nextern \"C\" void inner_loop_221(struct loop_221_data *data);\n\nextern \"C\" int armbench_entry_loop_221(void *a, void *x, int64_t m, int64_t n, void *res_out) {\n    struct loop_221_data _kd;\n    _kd.a = static_cast<double *>(a);\n    _kd.x = static_cast<double *>(x);\n    _kd.b = static_cast<double *>(res_out);\n    _kd.m = static_cast<uint64_t>(m);\n    _kd.n = static_cast<uint64_t>(n);\n    inner_loop_221(&_kd);\n    return 0;\n}\n"
    },
    {
      "path": "kernel.cpp",
      "content": "#include \"loop_221.h\"\n#include <stdint.h>\n\nextern \"C\" void inner_loop_221(struct loop_221_data *data) {\n    uint64_t m = data->m;\n    uint64_t n = data->n;\n    double *a = data->a;\n    double *x = data->x;\n    double *b = data->b;\n    for (uint64_t i = 0; i < m; i++) {\n        double d = 0;\n        for (uint64_t j = 0; j < n; j++) d += a[(i * n) + j] * x[j];\n        b[i] = d;\n    }\n}\n"
    }
  ],
  "description": "Scalar reference (auto-vectorization disabled) for loop_221. Baseline for speedup measurement."
}