| //===-- Nios2InstPrinter.cpp - Convert Nios2 MCInst to assembly syntax-----===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is distributed under the University of Illinois Open Source |
| // License. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| // |
| // This class prints an Nios2 MCInst to a .s file. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #include "Nios2InstPrinter.h" |
| |
| #include "Nios2InstrInfo.h" |
| #include "llvm/MC/MCExpr.h" |
| #include "llvm/MC/MCInst.h" |
| #include "llvm/MC/MCInstrInfo.h" |
| #include "llvm/Support/raw_ostream.h" |
| using namespace llvm; |
| |
| #define DEBUG_TYPE "asm-printer" |
| |
| #define PRINT_ALIAS_INSTR |
| #include "Nios2GenAsmWriter.inc" |
| |
| void Nios2InstPrinter::printRegName(raw_ostream &OS, unsigned RegNo) const { |
| OS << getRegisterName(RegNo); |
| } |
| |
| void Nios2InstPrinter::printInst(const MCInst *MI, raw_ostream &O, |
| StringRef Annot, const MCSubtargetInfo &STI) { |
| // Try to print any aliases first. |
| if (!printAliasInstr(MI, STI, O)) |
| printInstruction(MI, STI, O); |
| printAnnotation(O, Annot); |
| } |
| |
| void Nios2InstPrinter::printOperand(const MCInst *MI, int OpNo, |
| const MCSubtargetInfo &STI, |
| raw_ostream &O) { |
| const MCOperand &Op = MI->getOperand(OpNo); |
| if (Op.isReg()) { |
| printRegName(O, Op.getReg()); |
| return; |
| } |
| |
| if (Op.isImm()) { |
| O << Op.getImm(); |
| return; |
| } |
| |
| assert(Op.isExpr() && "unknown operand kind in printOperand"); |
| Op.getExpr()->print(O, &MAI, true); |
| } |
| |
| void Nios2InstPrinter::printMemOperand(const MCInst *MI, int opNum, |
| const MCSubtargetInfo &STI, |
| raw_ostream &O, const char *Modifier) { |
| // Load/Store memory operands -- imm($reg) |
| printOperand(MI, opNum + 1, STI, O); |
| O << "("; |
| printOperand(MI, opNum, STI, O); |
| O << ")"; |
| } |