mirror of
https://github.com/VectorCamp/vectorscan.git
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117 lines
3.6 KiB
C++
117 lines
3.6 KiB
C++
/*
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* Copyright (c) 2015-2017, Intel Corporation
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* * Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* * Neither the name of Intel Corporation nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "config.h"
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#include "cross_compile.h"
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#include "src/ue2common.h"
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#include "src/hs_compile.h"
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#include <sstream>
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#include <string>
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using namespace std;
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struct XcompileMode {
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const string name;
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unsigned long long cpu_features;
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};
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static const XcompileMode xcompile_options[] = {
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{ "avx512", HS_CPU_FEATURES_AVX512 },
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{ "avx2", HS_CPU_FEATURES_AVX2 },
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{ "base", 0 },
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};
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unique_ptr<hs_platform_info> xcompileReadMode(const char *s) {
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hs_platform_info rv;
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UNUSED hs_error_t err;
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err = hs_populate_platform(&rv);
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assert(!err);
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string str(s);
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string mode = str.substr(0, str.find(":"));
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string opt = str.substr(str.find(":")+1, str.npos);
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bool found_mode = false;
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if (!opt.empty()) {
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for (const auto &xcompile : xcompile_options) {
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// cppcheck-suppress useStlAlgorithm
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if (opt == xcompile.name) {
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rv.cpu_features = xcompile.cpu_features;
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found_mode = true;
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break;
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}
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}
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}
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if (!found_mode) {
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return nullptr;
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} else {
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DEBUG_PRINTF("cpu_features %llx\n", rv.cpu_features);
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return std::make_unique<hs_platform_info>(rv);
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}
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}
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string to_string(const hs_platform_info &p) {
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ostringstream out;
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if (p.tune) {
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out << p.tune;
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}
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if (p.cpu_features) {
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u64a features = p.cpu_features;
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if (features & HS_CPU_FEATURES_AVX512) {
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out << " avx512";
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features &= ~HS_CPU_FEATURES_AVX512;
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}
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if (features & HS_CPU_FEATURES_AVX2) {
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out << " avx2";
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features &= ~HS_CPU_FEATURES_AVX2;
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}
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if (features) {
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out << " " << "?cpu_features?:" << features;
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}
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}
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return out.str();
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}
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string xcompileUsage(void) {
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string variants = "Instruction set options: ";
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const auto commaspace = ", ";
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auto sep = "";
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for (const auto &xcompile : xcompile_options) {
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variants += sep + xcompile.name;
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sep = commaspace;
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}
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return variants;
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}
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