mirror of
https://github.com/ZDoom/qzdoom-gpl.git
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2f64bfa5af
It is all a waste of time anyhow, because when my computer is literally a factor 100 times faster at building, what frame rate can one really expect? What should it run at? 320x200?
142 lines
3.7 KiB
C++
142 lines
3.7 KiB
C++
/*
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** LLVM code generated drawers
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** Copyright (c) 2016 Magnus Norddahl
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**
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** This software is provided 'as-is', without any express or implied
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** warranty. In no event will the authors be held liable for any damages
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** arising from the use of this software.
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**
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** Permission is granted to anyone to use this software for any purpose,
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** including commercial applications, and to alter it and redistribute it
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** freely, subject to the following restrictions:
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**
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** 1. The origin of this software must not be misrepresented; you must not
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** claim that you wrote the original software. If you use this software
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** in a product, an acknowledgment in the product documentation would be
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** appreciated but is not required.
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** 2. Altered source versions must be plainly marked as such, and must not be
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** misrepresented as being the original software.
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** 3. This notice may not be removed or altered from any source distribution.
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**
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*/
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#include "precomp.h"
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#include "timestamp.h"
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#include "exception.h"
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#include "llvmdrawers.h"
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std::string &AllTimestamps()
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{
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static std::string timestamps;
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return timestamps;
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}
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void AddSourceFileTimestamp(const char *timestamp)
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{
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if (!AllTimestamps().empty()) AllTimestamps().push_back(' ');
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AllTimestamps() += timestamp;
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}
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int main(int argc, char **argv)
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{
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try
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{
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if (argc != 2)
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{
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std::cerr << "Usage: " << argv[0] << "<output filename>" << std::endl;
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return 1;
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}
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std::string timestamp_filename = argv[1] + std::string(".timestamp");
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FILE *file = fopen(timestamp_filename.c_str(), "rb");
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if (file != nullptr)
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{
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char buffer[4096];
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int bytes_read = fread(buffer, 1, 4096, file);
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fclose(file);
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std::string last_timestamp;
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if (bytes_read > 0)
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last_timestamp = std::string(buffer, bytes_read);
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if (AllTimestamps() == last_timestamp)
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{
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std::cout << "Not recompiling drawers because the object file is already up to date." << std::endl;
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exit(0);
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}
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}
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llvm::install_fatal_error_handler([](void *user_data, const std::string& reason, bool gen_crash_diag)
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{
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std::cerr << "LLVM fatal error: " << reason;
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exit(1);
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});
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llvm::InitializeNativeTarget();
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llvm::InitializeNativeTargetAsmPrinter();
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std::string triple = llvm::sys::getDefaultTargetTriple();
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#ifdef __APPLE__
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// Target triple is x86_64-apple-darwin15.6.0
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auto pos = triple.find("-apple-darwin");
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if (pos != std::string::npos)
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{
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triple = triple.substr(0, pos) + "-apple-darwin10.11.0";
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}
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#endif
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std::cout << "Target triple is " << triple << std::endl;
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#ifdef __arm__
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std::string cpuName = llvm::sys::getHostCPUName(); // "armv8";
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#else
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std::string cpuName = "pentium4";
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#endif
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std::string features;
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std::cout << "Compiling drawer code for " << cpuName << ".." << std::endl;
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LLVMDrawers drawersSSE2(triple, cpuName, features, "_SSE2");
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file = fopen(argv[1], "wb");
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if (file == nullptr)
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{
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std::cerr << "Unable to open " << argv[1] << " for writing." << std::endl;
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return 1;
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}
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int result = fwrite(drawersSSE2.ObjectFile.data(), drawersSSE2.ObjectFile.size(), 1, file);
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fclose(file);
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if (result != 1)
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{
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std::cerr << "Could not write data to " << argv[1] << std::endl;
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return 1;
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}
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file = fopen(timestamp_filename.c_str(), "wb");
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if (file == nullptr)
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{
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std::cerr << "Could not create timestamp file" << std::endl;
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return 1;
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}
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result = fwrite(AllTimestamps().data(), AllTimestamps().length(), 1, file);
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fclose(file);
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if (result != 1)
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{
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std::cerr << "Could not write timestamp file" << std::endl;
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return 1;
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}
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//LLVMDrawers drawersSSE4("core2");
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//LLVMDrawers drawersAVX("sandybridge");
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//LLVMDrawers drawersAVX2("haswell");
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return 0;
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}
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catch (const std::exception &e)
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{
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std::cerr << e.what() << std::endl;
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return 1;
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}
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}
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