private static void Main(string[] args)
{
// Make the module, which holds all the code.
LLVMModuleRef module = LLVM.ModuleCreateWithName("my cool jit");
LLVMBuilderRef builder = LLVM.CreateBuilder();
var codeGenlistener = new CodeGenParserListener(new CodeGenVisitor(module, builder));
// Install standard binary operators.
// 1 is lowest precedence.
var binopPrecedence = new Dictionary<char, int>();
binopPrecedence['<'] = 10;
binopPrecedence['+'] = 20;
binopPrecedence['-'] = 20;
binopPrecedence['*'] = 40; // highest.
var scanner = new Lexer(Console.In, binopPrecedence);
var parser = new Parser(scanner, codeGenlistener);
// Prime the first token.
Console.Write("ready> ");
scanner.GetNextToken();
// Run the main "interpreter loop" now.
MainLoop(scanner, parser);
// Print out all of the generated code.
LLVM.DumpModule(module);
}
private static void Main(string[] args)
{
// Make the module, which holds all the code.
LLVMModuleRef module = LLVM.ModuleCreateWithName("my cool jit");
LLVMBuilderRef builder = LLVM.CreateBuilder();
LLVM.LinkInJIT();
LLVM.InitializeX86TargetInfo();
LLVM.InitializeX86Target();
LLVM.InitializeX86TargetMC();
LLVMExecutionEngineRef engine;
IntPtr errorMessage;
if (LLVM.CreateExecutionEngineForModule(out engine, module, out errorMessage).Value == 1)
{
Console.WriteLine(Marshal.PtrToStringAnsi(errorMessage));
LLVM.DisposeMessage(errorMessage);
return;
}
// Create a function pass manager for this engine
LLVMPassManagerRef passManager = LLVM.CreateFunctionPassManagerForModule(module);
// Set up the optimizer pipeline. Start with registering info about how the
// target lays out data structures.
LLVM.AddTargetData(LLVM.GetExecutionEngineTargetData(engine), passManager);
// Provide basic AliasAnalysis support for GVN.
LLVM.AddBasicAliasAnalysisPass(passManager);
// Promote allocas to registers.
LLVM.AddPromoteMemoryToRegisterPass(passManager);
// Do simple "peephole" optimizations and bit-twiddling optzns.
LLVM.AddInstructionCombiningPass(passManager);
// Reassociate expressions.
LLVM.AddReassociatePass(passManager);
// Eliminate Common SubExpressions.
LLVM.AddGVNPass(passManager);
// Simplify the control flow graph (deleting unreachable blocks, etc).
LLVM.AddCFGSimplificationPass(passManager);
LLVM.InitializeFunctionPassManager(passManager);
var codeGenlistener = new CodeGenParserListener(engine, passManager, new CodeGenVisitor(module, builder));
// Install standard binary operators.
// 1 is lowest precedence.
var binopPrecedence = new Dictionary<char, int>();
binopPrecedence['<'] = 10;
binopPrecedence['+'] = 20;
binopPrecedence['-'] = 20;
binopPrecedence['*'] = 40; // highest.
var scanner = new Lexer(Console.In, binopPrecedence);
var parser = new Parser(scanner, codeGenlistener);
// Prime the first token.
Console.Write("ready> ");
scanner.GetNextToken();
// Run the main "interpreter loop" now.
MainLoop(scanner, parser);
// Print out all of the generated code.
LLVM.DumpModule(module);
}