llvm-6502/lib/Target/PIC16/PIC16TargetMachine.cpp

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//===-- PIC16TargetMachine.cpp - Define TargetMachine for PIC16 -----------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// Top-level implementation for the PIC16 target.
//
//===----------------------------------------------------------------------===//
#include "PIC16.h"
#include "PIC16MCAsmInfo.h"
#include "PIC16TargetMachine.h"
#include "llvm/PassManager.h"
#include "llvm/CodeGen/Passes.h"
#include "llvm/Target/TargetRegistry.h"
using namespace llvm;
extern "C" void LLVMInitializePIC16Target() {
// Register the target. Curretnly the codegen works for
// enhanced pic16 mid-range.
RegisterTargetMachine<PIC16TargetMachine> X(ThePIC16Target);
RegisterAsmInfo<PIC16MCAsmInfo> A(ThePIC16Target);
}
// PIC16TargetMachine - Enhanced PIC16 mid-range Machine. May also represent
// a Traditional Machine if 'Trad' is true.
PIC16TargetMachine::PIC16TargetMachine(const Target &T, const std::string &TT,
const std::string &FS, bool Trad)
: LLVMTargetMachine(T, TT),
Subtarget(TT, FS, Trad),
DataLayout("e-p:16:8:8-i8:8:8-i16:8:8-i32:8:8-n8"),
InstrInfo(*this), TLInfo(*this),
FrameInfo(TargetFrameInfo::StackGrowsUp, 8, 0) { }
bool PIC16TargetMachine::addInstSelector(PassManagerBase &PM,
CodeGenOpt::Level OptLevel) {
// Install an instruction selector.
PM.add(createPIC16ISelDag(*this));
return false;
}
bool PIC16TargetMachine::addPreEmitPass(PassManagerBase &PM,
CodeGenOpt::Level OptLevel) {
PM.add(createPIC16MemSelOptimizerPass());
return true; // -print-machineinstr should print after this.
}