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/************************************************************************
FAUST Architecture File
Copyright (C) 2019 GRAME, Centre National de Creation Musicale
---------------------------------------------------------------------
This Architecture section is free software; you can redistribute it
and/or modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 3 of
the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; If not, see <http://www.gnu.org/licenses/>.
EXCEPTION : As a special exception, you may create a larger work
that contains this FAUST architecture section and distribute
that work under terms of your choice, so long as this FAUST
architecture section is not modified.
************************************************************************/
#include <libgen.h>
#include <iostream>
#include <fstream>
#include <sstream>
#include <string>
#include <vector>
#include "faust/dsp/llvm-dsp.h"
#include "faust/dsp/dsp-optimizer.h"
#include "faust/misc.h"
using namespace std;
static bool endWith(const string& str, const string& suffix)
{
size_t i = str.rfind(suffix);
return (i != string::npos) && (i == (str.length() - suffix.length()));
}
static void splitTarget(const string& target, string& triple, string& cpu)
{
size_t pos1 = target.find_first_of(':');
triple = target.substr(0, pos1);
if (pos1 != string::npos) {
cpu = target.substr(pos1 + 1);
}
}
static string replaceChar(string str, char src, char dst)
{
replace(str.begin(), str.end(), src, dst);
return str;
}
template <typename REAL>
static vector<string> bench(dsp_optimizer_real<REAL> optimizer, const string& name)
{
tuple<double, double, double, TOption> res = optimizer.findOptimizedParameters();
return get<3>(res);
}
int main(int argc, char* argv[])
{
if (argc == 1 || isopt(argv, "-h") || isopt(argv, "-help")) {
cout << "dynamic-faust [-target xxx] [-opt native|generic] [-o foo.ll|foo.bc|foo.mc|foo.o] [additional Faust options (-vec -vs 8...)] foo.dsp" << endl;
cout << "Use '-target xxx' to cross-compile the code for a different architecture (like 'x86_64-apple-darwin15.6.0:haswell')\n";
cout << "Use '-opt native' to activate the best compilation options for the native CPU\n";
cout << "Use '-opt generic' to activate the best compilation options for a generic CPU\n";
cout << "Use '-o foo.ll' to generate an LLVM IR textual file\n";
cout << "Use '-o foo.bc' to generate an LLVM bitcode file\n";
cout << "Use '-o foo.mc' to generate an LLVM machine code file\n";
cout << "Use '-o foo.o' to generate an object code file\n";
return 0;
}
string target = lopts(argv, "-target", getDSPMachineTarget().c_str());
bool is_opt = isopt(argv, "-opt");
string opt = lopts(argv, "-opt", "generic");
bool is_double = isopt(argv, "-double");
string in_filename, out_filename, error_msg;
cout << "Libfaust version : " << getCLibFaustVersion() << endl;
int argc1 = 0;
const char* argv1[64];
cout << "Compiled with additional options : ";
for (int i = 1; i < argc-1; i++) {
if ((string(argv[i]) == "-target") || string(argv[i]) == "-opt"){
i++;
continue;
} else if (endWith(string(argv[i]), ".dsp")) {
in_filename = argv[i];
continue;
} else if (string(argv[i]) == "-o") {
out_filename = argv[i+1];
i++;
continue;
} else if (string(argv[i]) == "-a") {
cerr << "ERROR : -a parameter cannot be used!\n";
exit(EXIT_FAILURE);
}
argv1[argc1++] = argv[i];
cout << argv[i] << " ";
}
cout << endl;
argv1[argc1] = nullptr; // NULL terminated argv
if (out_filename == "") {
cerr << "ERROR : no output file given...\n";
exit(EXIT_FAILURE);
}
string opt_target;
vector<string> optimal_options;
string triple, cpu;
splitTarget(getDSPMachineTarget(), triple, cpu);
cout << "Host : " << triple << ":" << cpu << "\n";
if (is_opt) {
if (opt == "generic") {
opt_target = triple + ":generic";
cout << "Using 'generic' mode\n";
} else {
cout << "Using 'native' mode\n";
}
cout << "Looking for optimal parameters... \n";
int buffer_size = 512;
try {
if (is_double) {
optimal_options = bench(dsp_optimizer_real<double>(in_filename, argc1, argv1, opt_target, buffer_size, 1, -1, false), in_filename);
} else {
optimal_options = bench(dsp_optimizer_real<float>(in_filename, argc1, argv1, opt_target, buffer_size, 1, -1, false), in_filename);
}
} catch (...) {
cerr << "libfaust error...\n";
exit(EXIT_FAILURE);
}
cout << "Compiled with optimal options : ";
for (size_t i = 0; i < optimal_options.size(); i++) {
argv1[argc1++] = optimal_options[i].c_str();
cout << optimal_options[i] << " ";
}
cout << endl;
// Compilation target is the opt_target
target = opt_target;
} else {
splitTarget(target, triple, cpu);
target = triple + ":" + replaceChar(cpu, '_', '-');
}
// Create factory
cout << "Compiled with target : " << target << endl;
llvm_dsp_factory* factory = createDSPFactoryFromFile(in_filename, argc1, argv1, target, error_msg, -1);
if (!factory) {
cerr << error_msg;
exit(EXIT_FAILURE);
}
// Save it
if (endWith(out_filename, ".ll")) {
if (!writeDSPFactoryToIRFile(factory, out_filename)) {
cerr << "ERROR : writeDSPFactoryToIRFile...\n";
exit(EXIT_FAILURE);
}
} else if (endWith(out_filename, ".bc")) {
if (!writeDSPFactoryToBitcodeFile(factory, out_filename)) {
cerr << "ERROR : writeDSPFactoryToBitcodeFile...\n";
exit(EXIT_FAILURE);
}
} else if (endWith(out_filename, ".mc")) {
if (!writeDSPFactoryToMachineFile(factory, out_filename, "")) {
cerr << "ERROR : writeDSPFactoryToMachineFile...\n";
exit(EXIT_FAILURE);
}
} else if (endWith(out_filename, ".o")) {
if (!writeDSPFactoryToObjectcodeFile(factory, out_filename, "")) {
cerr << "ERROR : writeDSPFactoryToObjectcodeFile...\n";
exit(EXIT_FAILURE);
}
} else {
cerr << "ERROR : unrecognized file extension " << out_filename << "\n";
exit(EXIT_FAILURE);
}
deleteDSPFactory(factory);
return 0;
}
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