1//===-- MBlazeInstPrinter.cpp - Convert MBlaze MCInst to assembly syntax --===//
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 class prints an MBlaze MCInst to a .s file.
11//
12//===----------------------------------------------------------------------===//
13
14#define DEBUG_TYPE "asm-printer"
15#include "MBlaze.h"
16#include "MBlazeInstPrinter.h"
17#include "llvm/MC/MCInst.h"
18#include "llvm/MC/MCAsmInfo.h"
19#include "llvm/MC/MCExpr.h"
20#include "llvm/Support/ErrorHandling.h"
21#include "llvm/Support/FormattedStream.h"
22using namespace llvm;
23
24
25// Include the auto-generated portion of the assembly writer.
26#include "MBlazeGenAsmWriter.inc"
27
28void MBlazeInstPrinter::printInst(const MCInst *MI, raw_ostream &O,
29                                  StringRef Annot) {
30  printInstruction(MI, O);
31  printAnnotation(O, Annot);
32}
33
34void MBlazeInstPrinter::printOperand(const MCInst *MI, unsigned OpNo,
35                                     raw_ostream &O, const char *Modifier) {
36  assert((Modifier == 0 || Modifier[0] == 0) && "No modifiers supported");
37  const MCOperand &Op = MI->getOperand(OpNo);
38  if (Op.isReg()) {
39    O << getRegisterName(Op.getReg());
40  } else if (Op.isImm()) {
41    O << (int32_t)Op.getImm();
42  } else {
43    assert(Op.isExpr() && "unknown operand kind in printOperand");
44    O << *Op.getExpr();
45  }
46}
47
48void MBlazeInstPrinter::printFSLImm(const MCInst *MI, int OpNo,
49                                    raw_ostream &O) {
50  const MCOperand &MO = MI->getOperand(OpNo);
51  if (MO.isImm())
52    O << "rfsl" << MO.getImm();
53  else
54    printOperand(MI, OpNo, O, NULL);
55}
56
57void MBlazeInstPrinter::printUnsignedImm(const MCInst *MI, int OpNo,
58                                        raw_ostream &O) {
59  const MCOperand &MO = MI->getOperand(OpNo);
60  if (MO.isImm())
61    O << (uint32_t)MO.getImm();
62  else
63    printOperand(MI, OpNo, O, NULL);
64}
65
66void MBlazeInstPrinter::printMemOperand(const MCInst *MI, int OpNo,
67                                        raw_ostream &O, const char *Modifier) {
68  printOperand(MI, OpNo, O, NULL);
69  O << ", ";
70  printOperand(MI, OpNo+1, O, NULL);
71}
72