forked from OSchip/llvm-project
70 lines
2.2 KiB
C++
70 lines
2.2 KiB
C++
//===-- MBlazeInstPrinter.cpp - Convert MBlaze MCInst to assembly syntax --===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This class prints an MBlaze MCInst to a .s file.
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//
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//===----------------------------------------------------------------------===//
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#define DEBUG_TYPE "asm-printer"
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#include "MBlaze.h"
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#include "MBlazeInstPrinter.h"
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#include "llvm/MC/MCInst.h"
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#include "llvm/MC/MCAsmInfo.h"
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#include "llvm/MC/MCExpr.h"
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#include "llvm/Support/ErrorHandling.h"
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#include "llvm/Support/FormattedStream.h"
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using namespace llvm;
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// Include the auto-generated portion of the assembly writer.
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#include "MBlazeGenAsmWriter.inc"
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void MBlazeInstPrinter::printInst(const MCInst *MI, raw_ostream &O) {
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printInstruction(MI, O);
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}
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void MBlazeInstPrinter::printOperand(const MCInst *MI, unsigned OpNo,
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raw_ostream &O, const char *Modifier) {
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assert((Modifier == 0 || Modifier[0] == 0) && "No modifiers supported");
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const MCOperand &Op = MI->getOperand(OpNo);
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if (Op.isReg()) {
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O << getRegisterName(Op.getReg());
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} else if (Op.isImm()) {
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O << (int32_t)Op.getImm();
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} else {
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assert(Op.isExpr() && "unknown operand kind in printOperand");
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O << *Op.getExpr();
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}
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}
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void MBlazeInstPrinter::printFSLImm(const MCInst *MI, int OpNo,
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raw_ostream &O) {
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const MCOperand &MO = MI->getOperand(OpNo);
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if (MO.isImm())
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O << "rfsl" << MO.getImm();
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else
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printOperand(MI, OpNo, O, NULL);
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}
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void MBlazeInstPrinter::printUnsignedImm(const MCInst *MI, int OpNo,
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raw_ostream &O) {
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const MCOperand &MO = MI->getOperand(OpNo);
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if (MO.isImm())
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O << (uint32_t)MO.getImm();
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else
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printOperand(MI, OpNo, O, NULL);
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}
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void MBlazeInstPrinter::printMemOperand(const MCInst *MI, int OpNo,
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raw_ostream &O, const char *Modifier) {
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printOperand(MI, OpNo, O, NULL);
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O << ", ";
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printOperand(MI, OpNo+1, O, NULL);
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}
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