//===-- ARMMCExpr.cpp - ARM specific MC expression classes ----------------===//

//

//                     The LLVM Compiler Infrastructure

//

// This file is distributed under the University of Illinois Open Source

// License. See LICENSE.TXT for details.

//

//===----------------------------------------------------------------------===//

#include "ARMMCExpr.h"

#include "llvm/MC/MCAssembler.h"

#include "llvm/MC/MCContext.h"

#include "llvm/MC/MCStreamer.h"

using namespace llvm_ks;

#define DEBUG_TYPE "armmcexpr"

const ARMMCExpr*

ARMMCExpr::create(VariantKind Kind, const MCExpr *Expr,

                       MCContext &Ctx) {

  return new (Ctx) ARMMCExpr(Kind, Expr);

}

void ARMMCExpr::printImpl(raw_ostream &OS, const MCAsmInfo *MAI) const {

  switch (Kind) {

  default: llvm_unreachable("Invalid kind!");

  case VK_ARM_HI16: OS << ":upper16:"; break;

  case VK_ARM_LO16: OS << ":lower16:"; break;

  }

  const MCExpr *Expr = getSubExpr();

  if (Expr->getKind() != MCExpr::SymbolRef)

    OS << '(';

  Expr->print(OS, MAI);

  if (Expr->getKind() != MCExpr::SymbolRef)

    OS << ')';

}

void ARMMCExpr::visitUsedExpr(MCStreamer &Streamer) const {

  Streamer.visitUsedExpr(*getSubExpr());

}