{
  "name": "reference_loop_004",
  "definition": "loop_004",
  "dataset": "simd-loop",
  "author": "reference",
  "spec": {
    "language": "cpp",
    "target_hardware": [
      "aarch64"
    ],
    "entry_point": "kernel.cpp::inner_loop_004",
    "dependencies": [],
    "isa_features": [],
    "compile_flags": [
      "-O2",
      "-std=c++14",
      "-fno-vectorize",
      "-fno-slp-vectorize"
    ],
    "link_flags": []
  },
  "sources": [
    {
      "path": "loop_004.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_004_data {\n    uint64_t *a;\n    uint64_t *b;\n    int n;\n    uint64_t res;\n};\n\n#ifdef __cplusplus\nextern \"C\" {\n#endif\nint armbench_entry_loop_004(void *a, void *b, int64_t n, void *res_out);\n#ifdef __cplusplus\n}\n#endif\n"
    },
    {
      "path": "loop_004.cpp",
      "content": "// Auto-generated by scripts/gen_simd_loop_harness.py \u2014 do not hand-edit.\n#include \"loop_004.h\"\n#include <cassert>\n#include <limits>\n\nextern \"C\" void inner_loop_004(struct loop_004_data *data);\n\nextern \"C\" int armbench_entry_loop_004(void *a, void *b, int64_t n, void *res_out) {\n    if (n < 0 || n > std::numeric_limits<int>::max()) return -1;\n    struct loop_004_data data;\n    data.a = static_cast<uint64_t *>(a);\n    data.b = static_cast<uint64_t *>(b);\n    data.n = static_cast<int>(n);\n    data.res = 0ull;\n    inner_loop_004(&data);\n    *static_cast<uint64_t *>(res_out) = data.res;\n    return 0;\n}\n"
    },
    {
      "path": "kernel.cpp",
      "content": "#include \"loop_004.h\"\n#include <stdint.h>\n\nextern \"C\" void inner_loop_004(struct loop_004_data * data) {\n  uint64_t *a = data->a;\n  uint64_t *b = data->b;\n  int n = data->n;\n\n  uint64_t res = 0;\n  for (int i = 0; i < n; i++) {\n    res += a[i] * b[i];\n  }\n  data->res = res;\n}\n"
    }
  ],
  "description": "Scalar reference (auto-vectorization disabled) for loop_004. Baseline for speedup measurement."
}