128 lines
4.3 KiB
C++
Executable File
128 lines
4.3 KiB
C++
Executable File
/* Copyright 2015-2017 Philippe Tillet
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files
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* (the "Software"), to deal in the Software without restriction,
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* including without limitation the rights to use, copy, modify, merge,
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* publish, distribute, sublicense, and/or sell copies of the Software,
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* and to permit persons to whom the Software is furnished to do so,
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* subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
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* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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#include <iostream>
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#include <fstream>
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#include "triton/driver/module.h"
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#include "triton/driver/context.h"
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#include "triton/driver/error.h"
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#include "triton/tools/sys/getenv.hpp"
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#include "llvm/IR/IRPrintingPasses.h"
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#include "llvm/IR/Module.h"
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#include "llvm/IR/LLVMContext.h"
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#include "llvm/IR/PassManager.h"
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#include "llvm/Support/raw_ostream.h"
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#include "llvm/Support/TargetRegistry.h"
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#include "llvm/Support/TargetSelect.h"
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#include "llvm/Target/TargetMachine.h"
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#include "llvm/Target/TargetOptions.h"
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#include "llvm/CodeGen/TargetPassConfig.h"
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#include "llvm/IR/LegacyPassManager.h"
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#include "llvm/Transforms/Scalar/EarlyCSE.h"
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#include "llvm/Analysis/LoopPass.h"
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namespace triton
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{
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namespace driver
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{
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std::string module::compile_llvm_module(llvm::Module* module) {
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init_llvm();
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// create machine
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module->setTargetTriple("nvptx64-nvidia-cuda");
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std::string error;
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auto target = llvm::TargetRegistry::lookupTarget(module->getTargetTriple(), error);
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llvm::TargetMachine *machine = target->createTargetMachine(module->getTargetTriple(), "sm_52", "",
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llvm::TargetOptions(), llvm::Reloc::Model(),
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llvm::None, llvm::CodeGenOpt::Aggressive);
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// set data layout
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std::string layout = "e";
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bool is_64bit = true;
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bool use_short_pointers = true;
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if (!is_64bit)
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layout += "-p:32:32";
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else if (use_short_pointers)
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layout += "-p3:32:32-p4:32:32-p5:32:32";
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layout += "-i64:64-i128:128-v16:16-v32:32-n16:32:64";
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module->setDataLayout(layout);
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// emit machine code
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llvm::legacy::PassManager pass;
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llvm::SmallVector<char, 0> buffer;
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llvm::raw_svector_ostream stream(buffer);
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machine->addPassesToEmitFile(pass, stream, nullptr, llvm::TargetMachine::CGFT_AssemblyFile);
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pass.run(*module);
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return std::string(buffer.begin(), buffer.end());
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}
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void module::init_llvm() {
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static bool init = false;
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if(!init){
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llvm::InitializeAllTargetInfos();
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llvm::InitializeAllTargets();
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llvm::InitializeAllTargetMCs();
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llvm::InitializeAllAsmParsers();
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llvm::InitializeAllAsmPrinters();
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init = true;
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}
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}
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module::module(driver::context const & context, llvm::Module* ll_module): module(context, compile_llvm_module(ll_module)){ }
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module::module(driver::context const & context, std::string const & source) : context_(context), source_(source){
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ContextSwitcher ctx_switch(context_);
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// JIT compile source-code
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CUjit_option opt[] = {CU_JIT_ERROR_LOG_BUFFER_SIZE_BYTES, CU_JIT_ERROR_LOG_BUFFER};
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unsigned int errbufsize = 8096;
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std::string errbuf(errbufsize, 0);
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void* optval[] = {(void*)(uintptr_t)errbufsize, (void*)errbuf.data()};
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try{
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dispatch::cuModuleLoadDataEx(&*cu_, source_.data(), 2, opt, optval);
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}catch(exception::cuda::base const &){
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std::cerr << "Compilation Failed! Log: " << std::endl;
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std::cerr << errbuf << std::endl;
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throw;
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}
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}
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driver::context const & module::context() const
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{ return context_; }
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handle<CUmodule> const & module::cu() const
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{ return cu_; }
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buffer module::symbol(const char *name) const{
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CUdeviceptr handle;
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size_t size;
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dispatch::cuModuleGetGlobal_v2(&handle, &size, *cu_, name);
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return buffer(context_, handle, false);
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}
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}
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}
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