//===-- X86TargetMachine.cpp - Define TargetMachine for the X86 -----------===// // // This file defines the X86 specific subclass of TargetMachine. // //===----------------------------------------------------------------------===// #include "X86TargetMachine.h" #include "llvm/Target/TargetMachineImpls.h" #include "llvm/CodeGen/MachineFunction.h" #include "llvm/PassManager.h" #include "X86.h" #include <iostream> // allocateX86TargetMachine - Allocate and return a subclass of TargetMachine // that implements the X86 backend. // TargetMachine *allocateX86TargetMachine() { return new X86TargetMachine(); } /// X86TargetMachine ctor - Create an ILP32 architecture model /// X86TargetMachine::X86TargetMachine() : TargetMachine("X86", 1, 4, 4, 4) { } /// addPassesToJITCompile - Add passes to the specified pass manager to /// implement a fast dynamic compiler for this target. Return true if this is /// not supported for this target. /// bool X86TargetMachine::addPassesToJITCompile(PassManager &PM) { PM.add(createSimpleX86InstructionSelector(*this)); // TODO: optional optimizations go here // Print the instruction selected machine code... PM.add(createMachineFunctionPrinterPass()); // Perform register allocation to convert to a concrete x86 representation //PM.add(createSimpleX86RegisterAllocator(*this)); PM.add(createX86CodePrinterPass(*this, std::cerr)); //PM.add(createEmitX86CodeToMemory(*this)); return false; // success! }