//===-- XCoreInstPrinter.cpp - Convert XCore 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 XCore MCInst to a .s file. // //===----------------------------------------------------------------------===// #include "XCoreInstPrinter.h" #include "llvm/ADT/StringExtras.h" #include "llvm/MC/MCExpr.h" #include "llvm/MC/MCInst.h" #include "llvm/MC/MCInstrInfo.h" #include "llvm/MC/MCSymbol.h" #include "llvm/Support/ErrorHandling.h" #include "llvm/Support/raw_ostream.h" using namespace llvm; #define DEBUG_TYPE "asm-printer" #include "XCoreGenAsmWriter.inc" void XCoreInstPrinter::printRegName(raw_ostream &OS, unsigned RegNo) const { OS << StringRef(getRegisterName(RegNo)).lower(); } void XCoreInstPrinter::printInst(const MCInst *MI, raw_ostream &O, StringRef Annot, const MCSubtargetInfo &STI) { printInstruction(MI, O); printAnnotation(O, Annot); } void XCoreInstPrinter:: printInlineJT(const MCInst *MI, int opNum, raw_ostream &O) { report_fatal_error("can't handle InlineJT"); } void XCoreInstPrinter:: printInlineJT32(const MCInst *MI, int opNum, raw_ostream &O) { report_fatal_error("can't handle InlineJT32"); } static void printExpr(const MCExpr *Expr, raw_ostream &OS) { int Offset = 0; const MCSymbolRefExpr *SRE; if (const MCBinaryExpr *BE = dyn_cast(Expr)) { SRE = dyn_cast(BE->getLHS()); const MCConstantExpr *CE = dyn_cast(BE->getRHS()); assert(SRE && CE && "Binary expression must be sym+const."); Offset = CE->getValue(); } else { SRE = dyn_cast(Expr); assert(SRE && "Unexpected MCExpr type."); } assert(SRE->getKind() == MCSymbolRefExpr::VK_None); OS << SRE->getSymbol(); if (Offset) { if (Offset > 0) OS << '+'; OS << Offset; } } void XCoreInstPrinter:: printOperand(const MCInst *MI, unsigned OpNo, 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"); printExpr(Op.getExpr(), O); }