//===-- PPCMCAsmInfo.cpp - PPC asm properties -----------------------------===//

//

//                     The LLVM Compiler Infrastructure

//

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

// License. See LICENSE.TXT for details.

//

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

//

// This file contains the declarations of the MCAsmInfoDarwin properties.

//

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

#include "PPCMCAsmInfo.h"

#include "llvm/ADT/Triple.h"

using namespace llvm_ks;

PPCMCAsmInfoDarwin::PPCMCAsmInfoDarwin(bool is64Bit, const Triple& T) {

  if (is64Bit) {

    PointerSize = CalleeSaveStackSlotSize = 8;

  }

  IsLittleEndian = false;

  CommentString = ";";

  ExceptionsType = ExceptionHandling::DwarfCFI;

  if (!is64Bit)

    Data64bitsDirective = nullptr; // We can't emit a 64-bit unit in PPC32 mode.

  AssemblerDialect = 1;           // New-Style mnemonics.

  SupportsDebugInformation= true; // Debug information.

  // The installed assembler for OSX < 10.6 lacks some directives.

  // FIXME: this should really be a check on the assembler characteristics

  // rather than OS version

  if (T.isMacOSX() && T.isMacOSXVersionLT(10, 6))

    HasWeakDefCanBeHiddenDirective = false;

  UseIntegratedAssembler = true;

}

PPCELFMCAsmInfo::PPCELFMCAsmInfo(bool is64Bit, const Triple& T) {

  // FIXME: This is not always needed. For example, it is not needed in the

  // v2 abi.

  NeedsLocalForSize = true;

  if (is64Bit) {

    PointerSize = CalleeSaveStackSlotSize = 8;

  }

  IsLittleEndian = T.getArch() == Triple::ppc64le;

  // ".comm align is in bytes but .align is pow-2."

  AlignmentIsInBytes = false;

  CommentString = "#";

  // Uses '.section' before '.bss' directive

  UsesELFSectionDirectiveForBSS = true;  

  // Debug Information

  SupportsDebugInformation = true;

  DollarIsPC = true;

  // Set up DWARF directives

  MinInstAlignment = 4;

  // Exceptions handling

  ExceptionsType = ExceptionHandling::DwarfCFI;

  ZeroDirective = "\t.space\t";

  Data64bitsDirective = is64Bit ? "\t.quad\t" : nullptr;

  AssemblerDialect = 1;           // New-Style mnemonics.

  LCOMMDirectiveAlignmentType = LCOMM::ByteAlignment;

  UseIntegratedAssembler = true;

}