| { | |
| "name": "reference_loop_114", | |
| "definition": "loop_114", | |
| "dataset": "simd-loop", | |
| "author": "reference", | |
| "spec": { | |
| "language": "cpp", | |
| "target_hardware": [ | |
| "aarch64" | |
| ], | |
| "entry_point": "kernel.cpp::inner_loop_114", | |
| "dependencies": [], | |
| "isa_features": [], | |
| "compile_flags": [ | |
| "-O2", | |
| "-std=c++14", | |
| "-fno-vectorize", | |
| "-fno-slp-vectorize" | |
| ], | |
| "link_flags": [] | |
| }, | |
| "sources": [ | |
| { | |
| "path": "loop_114.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_114_data {\n int16_t *data;\n int16_t *res;\n int32_t n;\n int32_t lags;\n int16_t scale;\n};\n\n#ifdef __cplusplus\nextern \"C\" {\n#endif\nint armbench_entry_loop_114(void *data, int64_t n, int64_t lags, int64_t scale, void *res_out);\n#ifdef __cplusplus\n}\n#endif\n" | |
| }, | |
| { | |
| "path": "loop_114.cpp", | |
| "content": "// Auto-generated by scripts/gen_simd_loop_harness.py \u2014 do not hand-edit.\n#include \"loop_114.h\"\n#include <stdint.h>\n\nextern \"C\" void inner_loop_114(struct loop_114_data *data);\n\nextern \"C\" int armbench_entry_loop_114(void *data, int64_t n, int64_t lags, int64_t scale, void *res_out) {\n struct loop_114_data _kd;\n _kd.data = static_cast<int16_t *>(data);\n _kd.res = static_cast<int16_t *>(res_out);\n _kd.n = static_cast<int32_t>(n);\n _kd.lags = static_cast<int32_t>(lags);\n _kd.scale = static_cast<int16_t>(scale);\n inner_loop_114(&_kd);\n return 0;\n}\n" | |
| }, | |
| { | |
| "path": "kernel.cpp", | |
| "content": "#include \"loop_114.h\"\n#include <stdint.h>\n\nextern \"C\" void inner_loop_114(struct loop_114_data *data) {\n int16_t *d = data->data;\n int16_t *res = data->res;\n int32_t n = data->n;\n int32_t lags = data->lags;\n int16_t scale = data->scale;\n for (int lag = 0; lag < lags; lag++) {\n int32_t acc = 0;\n int lmt = n - lag;\n for (int i = 0; i < lmt; i++)\n acc += ((int32_t)d[i] * (int32_t)d[i + lag]) >> scale;\n res[lag] = (int16_t)(acc >> 16);\n }\n}\n" | |
| } | |
| ], | |
| "description": "Scalar reference (auto-vectorization disabled) for loop_114. Baseline for speedup measurement." | |
| } | |