1 //===- lib/MC/MCInst.cpp - MCInst implementation --------------------------===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8
9 #include "llvm/MC/MCInst.h"
10 #include "llvm/Config/llvm-config.h"
11 #include "llvm/MC/MCExpr.h"
12 #include "llvm/MC/MCInstPrinter.h"
13 #include "llvm/MC/MCRegisterInfo.h"
14 #include "llvm/Support/Casting.h"
15 #include "llvm/Support/Compiler.h"
16 #include "llvm/Support/Debug.h"
17 #include "llvm/Support/raw_ostream.h"
18
19 using namespace llvm;
20
print(raw_ostream & OS,const MCRegisterInfo * RegInfo) const21 void MCOperand::print(raw_ostream &OS, const MCRegisterInfo *RegInfo) const {
22 OS << "<MCOperand ";
23 if (!isValid())
24 OS << "INVALID";
25 else if (isReg()) {
26 OS << "Reg:";
27 if (RegInfo)
28 OS << RegInfo->getName(getReg());
29 else
30 OS << getReg();
31 } else if (isImm())
32 OS << "Imm:" << getImm();
33 else if (isSFPImm())
34 OS << "SFPImm:" << bit_cast<float>(getSFPImm());
35 else if (isDFPImm())
36 OS << "DFPImm:" << bit_cast<double>(getDFPImm());
37 else if (isExpr()) {
38 OS << "Expr:(" << *getExpr() << ")";
39 } else if (isInst()) {
40 OS << "Inst:(";
41 getInst()->print(OS, RegInfo);
42 OS << ")";
43 } else
44 OS << "UNDEFINED";
45 OS << ">";
46 }
47
evaluateAsConstantImm(int64_t & Imm) const48 bool MCOperand::evaluateAsConstantImm(int64_t &Imm) const {
49 if (isImm()) {
50 Imm = getImm();
51 return true;
52 }
53 return false;
54 }
55
isBareSymbolRef() const56 bool MCOperand::isBareSymbolRef() const {
57 assert(isExpr() &&
58 "isBareSymbolRef expects only expressions");
59 const MCExpr *Expr = getExpr();
60 MCExpr::ExprKind Kind = getExpr()->getKind();
61 return Kind == MCExpr::SymbolRef &&
62 cast<MCSymbolRefExpr>(Expr)->getKind() == MCSymbolRefExpr::VK_None;
63 }
64
65 #if !defined(NDEBUG) || defined(LLVM_ENABLE_DUMP)
dump() const66 LLVM_DUMP_METHOD void MCOperand::dump() const {
67 print(dbgs());
68 dbgs() << "\n";
69 }
70 #endif
71
print(raw_ostream & OS,const MCRegisterInfo * RegInfo) const72 void MCInst::print(raw_ostream &OS, const MCRegisterInfo *RegInfo) const {
73 OS << "<MCInst " << getOpcode();
74 for (unsigned i = 0, e = getNumOperands(); i != e; ++i) {
75 OS << " ";
76 getOperand(i).print(OS, RegInfo);
77 }
78 OS << ">";
79 }
80
dump_pretty(raw_ostream & OS,const MCInstPrinter * Printer,StringRef Separator,const MCRegisterInfo * RegInfo) const81 void MCInst::dump_pretty(raw_ostream &OS, const MCInstPrinter *Printer,
82 StringRef Separator,
83 const MCRegisterInfo *RegInfo) const {
84 StringRef InstName = Printer ? Printer->getOpcodeName(getOpcode()) : "";
85 dump_pretty(OS, InstName, Separator, RegInfo);
86 }
87
dump_pretty(raw_ostream & OS,StringRef Name,StringRef Separator,const MCRegisterInfo * RegInfo) const88 void MCInst::dump_pretty(raw_ostream &OS, StringRef Name, StringRef Separator,
89 const MCRegisterInfo *RegInfo) const {
90 OS << "<MCInst #" << getOpcode();
91
92 // Show the instruction opcode name if we have it.
93 if (!Name.empty())
94 OS << ' ' << Name;
95
96 for (unsigned i = 0, e = getNumOperands(); i != e; ++i) {
97 OS << Separator;
98 getOperand(i).print(OS, RegInfo);
99 }
100 OS << ">";
101 }
102
103 #if !defined(NDEBUG) || defined(LLVM_ENABLE_DUMP)
dump() const104 LLVM_DUMP_METHOD void MCInst::dump() const {
105 print(dbgs());
106 dbgs() << "\n";
107 }
108 #endif
109