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      1 //===-- MipsMCAsmInfo.cpp - Mips Asm Properties ---------------------------===//
      2 //
      3 //                     The LLVM Compiler Infrastructure
      4 //
      5 // This file is distributed under the University of Illinois Open Source
      6 // License. See LICENSE.TXT for details.
      7 //
      8 //===----------------------------------------------------------------------===//
      9 //
     10 // This file contains the declarations of the MipsMCAsmInfo properties.
     11 //
     12 //===----------------------------------------------------------------------===//
     13 
     14 #include "MipsMCAsmInfo.h"
     15 #include "llvm/ADT/Triple.h"
     16 
     17 using namespace llvm;
     18 
     19 void MipsMCAsmInfo::anchor() { }
     20 
     21 MipsMCAsmInfo::MipsMCAsmInfo(const Triple &TheTriple) {
     22   IsLittleEndian = TheTriple.isLittleEndian();
     23 
     24   if (TheTriple.isMIPS64()) {
     25     CodePointerSize = CalleeSaveStackSlotSize = 8;
     26   }
     27 
     28   // FIXME: This condition isn't quite right but it's the best we can do until
     29   //        this object can identify the ABI. It will misbehave when using O32
     30   //        on a mips64*-* triple.
     31   if (TheTriple.isMIPS32()) {
     32     PrivateGlobalPrefix = "$";
     33     PrivateLabelPrefix = "$";
     34   }
     35 
     36   AlignmentIsInBytes          = false;
     37   Data16bitsDirective         = "\t.2byte\t";
     38   Data32bitsDirective         = "\t.4byte\t";
     39   Data64bitsDirective         = "\t.8byte\t";
     40   CommentString               = "#";
     41   ZeroDirective               = "\t.space\t";
     42   GPRel32Directive            = "\t.gpword\t";
     43   GPRel64Directive            = "\t.gpdword\t";
     44   DTPRel32Directive           = "\t.dtprelword\t";
     45   DTPRel64Directive           = "\t.dtpreldword\t";
     46   TPRel32Directive            = "\t.tprelword\t";
     47   TPRel64Directive            = "\t.tpreldword\t";
     48   UseAssignmentForEHBegin = true;
     49   SupportsDebugInformation = true;
     50   ExceptionsType = ExceptionHandling::DwarfCFI;
     51   DwarfRegNumForCFI = true;
     52   HasMipsExpressions = true;
     53 
     54   // Enable IAS by default for O32.
     55   if (TheTriple.isMIPS32())
     56     UseIntegratedAssembler = true;
     57 
     58   // Enable IAS by default for Debian mips64/mips64el.
     59   if (TheTriple.getEnvironment() == Triple::GNUABI64)
     60     UseIntegratedAssembler = true;
     61 
     62   // Enable IAS by default for Android mips64el that uses N64 ABI.
     63   if (TheTriple.getArch() == Triple::mips64el && TheTriple.isAndroid())
     64     UseIntegratedAssembler = true;
     65 
     66   // Enable IAS by default for FreeBSD / OpenBSD mips64/mips64el.
     67   if (TheTriple.isOSFreeBSD() ||
     68       TheTriple.isOSOpenBSD())
     69     UseIntegratedAssembler = true;
     70 }
     71