third_party/llvm-10.0/llvm/lib/Target/ARM/MCTargetDesc/ARMMachORelocationInfo.cpp

//===- ARMMachORelocationInfo.cpp -----------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//

#include "ARMMCExpr.h"
#include "MCTargetDesc/ARMMCTargetDesc.h"
#include "llvm-c/Disassembler.h"
#include "llvm/MC/MCDisassembler/MCRelocationInfo.h"
#include "llvm/MC/MCExpr.h"

using namespace llvm;

namespace {

class ARMMachORelocationInfo : public MCRelocationInfo {
public:
  ARMMachORelocationInfo(MCContext &Ctx) : MCRelocationInfo(Ctx) {}

  const MCExpr *createExprForCAPIVariantKind(const MCExpr *SubExpr,
                                             unsigned VariantKind) override {
    switch(VariantKind) {
    case LLVMDisassembler_VariantKind_ARM_HI16:
      return ARMMCExpr::createUpper16(SubExpr, Ctx);
    case LLVMDisassembler_VariantKind_ARM_LO16:
      return ARMMCExpr::createLower16(SubExpr, Ctx);
    default:
      return MCRelocationInfo::createExprForCAPIVariantKind(SubExpr,
                                                            VariantKind);
    }
  }
};

} // end anonymous namespace

/// createARMMachORelocationInfo - Construct an ARM Mach-O RelocationInfo.
MCRelocationInfo *llvm::createARMMachORelocationInfo(MCContext &Ctx) {
  return new ARMMachORelocationInfo(Ctx);
}