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f25167e | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 | {
"name": "reference_loop_106",
"definition": "loop_106",
"dataset": "simd-loop",
"author": "reference",
"spec": {
"language": "cpp",
"target_hardware": [
"aarch64"
],
"entry_point": "kernel.cpp::inner_loop_106",
"dependencies": [],
"isa_features": [],
"compile_flags": [
"-O2",
"-std=c++14",
"-fno-vectorize",
"-fno-slp-vectorize"
],
"link_flags": []
},
"sources": [
{
"path": "loop_106.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_106_data {\n uint32_t *a;\n uint32_t *b;\n uint32_t *perm;\n int64_t n;\n};\n\n#ifdef __cplusplus\nextern \"C\" {\n#endif\nint armbench_entry_loop_106(void *a, int64_t n, void *res_out);\n#ifdef __cplusplus\n}\n#endif\n"
},
{
"path": "loop_106.cpp",
"content": "// Auto-generated by scripts/gen_simd_loop_harness.py \u2014 do not hand-edit.\n#include \"loop_106.h\"\n#include <stdint.h>\n\nextern \"C\" void inner_loop_106(struct loop_106_data *data);\n\nextern \"C\" int armbench_entry_loop_106(void *a, int64_t n, void *res_out) {\n struct loop_106_data _kd;\n _kd.a = static_cast<uint32_t *>(a);\n _kd.b = static_cast<uint32_t *>(res_out);\n _kd.n = static_cast<int64_t>(n);\n inner_loop_106(&_kd);\n return 0;\n}\n"
},
{
"path": "kernel.cpp",
"content": "#include \"loop_106.h\"\n#include <stdint.h>\n\nstatic uint32_t popcount106(uint32_t x) {\n x = (x & 0x55555555u) + ((x >> 1) & 0x55555555u);\n x = (x & 0x33333333u) + ((x >> 2) & 0x33333333u);\n x = (x & 0x0F0F0F0Fu) + ((x >> 4) & 0x0F0F0F0Fu);\n x = (x & 0x00FF00FFu) + ((x >> 8) & 0x00FF00FFu);\n x = (x & 0x0000FFFFu) + ((x >> 16) & 0x0000FFFFu);\n return x;\n}\nstatic uint32_t compress106(uint32_t x, uint32_t m) {\n uint32_t mk, mp, mv, t;\n x = x & m;\n mk = ~m << 1;\n for (int i = 0; i < 5; i++) {\n mp = mk ^ (mk << 1);\n mp = mp ^ (mp << 2);\n mp = mp ^ (mp << 4);\n mp = mp ^ (mp << 8);\n mp = mp ^ (mp << 16);\n mv = mp & m;\n m = (m ^ mv) | (mv >> (1 << i));\n t = x & mv;\n x = (x ^ t) | (t >> (1 << i));\n mk = mk & ~mp;\n }\n return x;\n}\nstatic uint32_t sag106(uint32_t x, uint32_t m) {\n return (compress106(x, m) << popcount106(m)) | compress106(x, ~m);\n}\nstatic uint32_t permute106(uint32_t x, uint32_t p[5]) {\n x = sag106(x, p[0]);\n x = sag106(x, p[1]);\n x = sag106(x, p[2]);\n x = sag106(x, p[3]);\n return sag106(x, p[4]);\n}\nextern \"C\" void inner_loop_106(struct loop_106_data *data) {\n uint32_t *a = data->a;\n uint32_t *b = data->b;\n int64_t n = data->n;\n uint32_t permutation[5] = {0xaaaaaaaau, 0xccccccccu, 0x0f0f0f0fu, 0x0ff00ff0u, 0x0ffff000u};\n uint32_t p[5];\n p[0] = permutation[0];\n p[1] = sag106(permutation[1], permutation[0]);\n p[2] = sag106(permutation[2], permutation[0]);\n p[3] = sag106(permutation[3], permutation[0]);\n p[4] = sag106(permutation[4], permutation[0]);\n for (int64_t i = 0; i < n; i++) b[i] = permute106(a[i], p);\n}\n"
}
],
"description": "Scalar reference (auto-vectorization disabled) for loop_106. Baseline for speedup measurement."
}
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