File size: 2,013 Bytes
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"name": "reference_loop_108",
"definition": "loop_108",
"dataset": "simd-loop",
"author": "reference",
"spec": {
"language": "cpp",
"target_hardware": [
"aarch64"
],
"entry_point": "kernel.cpp::inner_loop_108",
"dependencies": [],
"isa_features": [],
"compile_flags": [
"-O2",
"-std=c++14",
"-fno-vectorize",
"-fno-slp-vectorize"
],
"link_flags": []
},
"sources": [
{
"path": "loop_108.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_108_data {\n uint32_t *rgba;\n uint8_t *y;\n int64_t n;\n};\n\n#ifdef __cplusplus\nextern \"C\" {\n#endif\nint armbench_entry_loop_108(void *rgba, int64_t n, void *res_out);\n#ifdef __cplusplus\n}\n#endif\n"
},
{
"path": "loop_108.cpp",
"content": "// Auto-generated by scripts/gen_simd_loop_harness.py \u2014 do not hand-edit.\n#include \"loop_108.h\"\n#include <stdint.h>\n\nextern \"C\" void inner_loop_108(struct loop_108_data *data);\n\nextern \"C\" int armbench_entry_loop_108(void *rgba, int64_t n, void *res_out) {\n struct loop_108_data data;\n data.rgba = static_cast<uint32_t *>(rgba);\n data.y = static_cast<uint8_t *>(res_out);\n data.n = static_cast<int64_t>(n);\n inner_loop_108(&data);\n return 0;\n}\n"
},
{
"path": "kernel.cpp",
"content": "#include \"loop_108.h\"\n#include <stdint.h>\n\nextern \"C\" void inner_loop_108(struct loop_108_data *data) {\n uint32_t *rgba = data->rgba;\n uint8_t *y = data->y;\n int64_t n = data->n;\n for (int64_t i = 0; i < n; i++) {\n y[i] = (rgba[i] >> 24) >> 2;\n y[i] += ((rgba[i] >> 16) & 0xff) >> 1;\n y[i] += ((rgba[i] >> 16) & 0xff) >> 3;\n y[i] += ((rgba[i] >> 8) & 0xff) >> 3;\n }\n}\n"
}
],
"description": "Scalar reference (auto-vectorization disabled) for loop_108. Baseline for speedup measurement."
}
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