1249423Sdim//===-- ARMAsmPrinter.h - ARM implementation of AsmPrinter ------*- C++ -*-===// 2218885Sdim// 3218885Sdim// The LLVM Compiler Infrastructure 4218885Sdim// 5218885Sdim// This file is distributed under the University of Illinois Open Source 6218885Sdim// License. See LICENSE.TXT for details. 7218885Sdim// 8218885Sdim//===----------------------------------------------------------------------===// 9218885Sdim 10218885Sdim#ifndef ARMASMPRINTER_H 11218885Sdim#define ARMASMPRINTER_H 12218885Sdim 13218885Sdim#include "ARM.h" 14218885Sdim#include "ARMTargetMachine.h" 15218885Sdim#include "llvm/CodeGen/AsmPrinter.h" 16218885Sdim#include "llvm/Support/Compiler.h" 17218885Sdim 18218885Sdimnamespace llvm { 19218885Sdim 20224145Sdimclass MCOperand; 21224145Sdim 22218885Sdimnamespace ARM { 23218885Sdim enum DW_ISA { 24218885Sdim DW_ISA_ARM_thumb = 1, 25218885Sdim DW_ISA_ARM_arm = 2 26218885Sdim }; 27218885Sdim} 28218885Sdim 29218885Sdimclass LLVM_LIBRARY_VISIBILITY ARMAsmPrinter : public AsmPrinter { 30218885Sdim 31218885Sdim /// Subtarget - Keep a pointer to the ARMSubtarget around so that we can 32218885Sdim /// make the right decision when printing asm code for different targets. 33218885Sdim const ARMSubtarget *Subtarget; 34218885Sdim 35218885Sdim /// AFI - Keep a pointer to ARMFunctionInfo for the current 36218885Sdim /// MachineFunction. 37218885Sdim ARMFunctionInfo *AFI; 38218885Sdim 39218885Sdim /// MCP - Keep a pointer to constantpool entries of the current 40218885Sdim /// MachineFunction. 41218885Sdim const MachineConstantPool *MCP; 42218885Sdim 43239462Sdim /// InConstantPool - Maintain state when emitting a sequence of constant 44239462Sdim /// pool entries so we can properly mark them as data regions. 45239462Sdim bool InConstantPool; 46218885Sdimpublic: 47218885Sdim explicit ARMAsmPrinter(TargetMachine &TM, MCStreamer &Streamer) 48239462Sdim : AsmPrinter(TM, Streamer), AFI(NULL), MCP(NULL), InConstantPool(false) { 49218885Sdim Subtarget = &TM.getSubtarget<ARMSubtarget>(); 50218885Sdim } 51218885Sdim 52243830Sdim virtual const char *getPassName() const LLVM_OVERRIDE { 53249423Sdim return "ARM Assembly / Object Emitter"; 54218885Sdim } 55218885Sdim 56218885Sdim void printOperand(const MachineInstr *MI, int OpNum, raw_ostream &O, 57218885Sdim const char *Modifier = 0); 58218885Sdim 59218885Sdim virtual bool PrintAsmOperand(const MachineInstr *MI, unsigned OpNum, 60218885Sdim unsigned AsmVariant, const char *ExtraCode, 61243830Sdim raw_ostream &O) LLVM_OVERRIDE; 62218885Sdim virtual bool PrintAsmMemoryOperand(const MachineInstr *MI, unsigned OpNum, 63243830Sdim unsigned AsmVariant, const char *ExtraCode, 64243830Sdim raw_ostream &O) LLVM_OVERRIDE; 65218885Sdim 66218885Sdim void EmitJumpTable(const MachineInstr *MI); 67218885Sdim void EmitJump2Table(const MachineInstr *MI); 68243830Sdim virtual void EmitInstruction(const MachineInstr *MI) LLVM_OVERRIDE; 69243830Sdim virtual bool runOnMachineFunction(MachineFunction &F) LLVM_OVERRIDE; 70218885Sdim 71243830Sdim virtual void EmitConstantPool() LLVM_OVERRIDE { 72243830Sdim // we emit constant pools customly! 73243830Sdim } 74243830Sdim virtual void EmitFunctionBodyEnd() LLVM_OVERRIDE; 75243830Sdim virtual void EmitFunctionEntryLabel() LLVM_OVERRIDE; 76243830Sdim virtual void EmitStartOfAsmFile(Module &M) LLVM_OVERRIDE; 77243830Sdim virtual void EmitEndOfAsmFile(Module &M) LLVM_OVERRIDE; 78243830Sdim virtual void EmitXXStructor(const Constant *CV) LLVM_OVERRIDE; 79218885Sdim 80224145Sdim // lowerOperand - Convert a MachineOperand into the equivalent MCOperand. 81224145Sdim bool lowerOperand(const MachineOperand &MO, MCOperand &MCOp); 82224145Sdim 83218885Sdimprivate: 84218885Sdim // Helpers for EmitStartOfAsmFile() and EmitEndOfAsmFile() 85218885Sdim void emitAttributes(); 86218885Sdim 87218885Sdim // Helper for ELF .o only 88218885Sdim void emitARMAttributeSection(); 89218885Sdim 90218885Sdim // Generic helper used to emit e.g. ARMv5 mul pseudos 91218885Sdim void EmitPatchedInstruction(const MachineInstr *MI, unsigned TargetOpc); 92218885Sdim 93221345Sdim void EmitUnwindingInstruction(const MachineInstr *MI); 94221345Sdim 95224145Sdim // emitPseudoExpansionLowering - tblgen'erated. 96224145Sdim bool emitPseudoExpansionLowering(MCStreamer &OutStreamer, 97224145Sdim const MachineInstr *MI); 98224145Sdim 99218885Sdimpublic: 100221345Sdim /// EmitDwarfRegOp - Emit dwarf register operation. 101263508Sdim virtual void EmitDwarfRegOp(const MachineLocation &MLoc, bool Indirect) const 102263508Sdim LLVM_OVERRIDE; 103221345Sdim 104243830Sdim virtual unsigned getISAEncoding() LLVM_OVERRIDE { 105218885Sdim // ARM/Darwin adds ISA to the DWARF info for each function. 106218885Sdim if (!Subtarget->isTargetDarwin()) 107218885Sdim return 0; 108218885Sdim return Subtarget->isThumb() ? 109234353Sdim ARM::DW_ISA_ARM_thumb : ARM::DW_ISA_ARM_arm; 110218885Sdim } 111218885Sdim 112243830Sdimprivate: 113224145Sdim MCOperand GetSymbolRef(const MachineOperand &MO, const MCSymbol *Symbol); 114218885Sdim MCSymbol *GetARMJTIPICJumpTableLabel2(unsigned uid, unsigned uid2) const; 115218885Sdim 116249423Sdim MCSymbol *GetARMSJLJEHLabel() const; 117218885Sdim 118218885Sdim MCSymbol *GetARMGVSymbol(const GlobalValue *GV); 119224145Sdim 120243830Sdimpublic: 121218885Sdim /// EmitMachineConstantPoolValue - Print a machine constantpool value to 122218885Sdim /// the .s file. 123243830Sdim virtual void 124243830Sdim EmitMachineConstantPoolValue(MachineConstantPoolValue *MCPV) LLVM_OVERRIDE; 125218885Sdim}; 126218885Sdim} // end namespace llvm 127218885Sdim 128218885Sdim#endif 129