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 if (const auto *Inst = getInst())
42 Inst->print(OS, RegInfo);
43 else
44 OS << "NULL";
45 OS << ")";
46 } else
47 OS << "UNDEFINED";
48 OS << ">";
49 }
50
evaluateAsConstantImm(int64_t & Imm) const51 bool MCOperand::evaluateAsConstantImm(int64_t &Imm) const {
52 if (isImm()) {
53 Imm = getImm();
54 return true;
55 }
56 return false;
57 }
58
isBareSymbolRef() const59 bool MCOperand::isBareSymbolRef() const {
60 assert(isExpr() &&
61 "isBareSymbolRef expects only expressions");
62 const MCExpr *Expr = getExpr();
63 MCExpr::ExprKind Kind = getExpr()->getKind();
64 return Kind == MCExpr::SymbolRef &&
65 cast<MCSymbolRefExpr>(Expr)->getKind() == MCSymbolRefExpr::VK_None;
66 }
67
68 #if !defined(NDEBUG) || defined(LLVM_ENABLE_DUMP)
dump() const69 LLVM_DUMP_METHOD void MCOperand::dump() const {
70 print(dbgs());
71 dbgs() << "\n";
72 }
73 #endif
74
print(raw_ostream & OS,const MCRegisterInfo * RegInfo) const75 void MCInst::print(raw_ostream &OS, const MCRegisterInfo *RegInfo) const {
76 OS << "<MCInst " << getOpcode();
77 for (unsigned i = 0, e = getNumOperands(); i != e; ++i) {
78 OS << " ";
79 getOperand(i).print(OS, RegInfo);
80 }
81 OS << ">";
82 }
83
dump_pretty(raw_ostream & OS,const MCInstPrinter * Printer,StringRef Separator,const MCRegisterInfo * RegInfo) const84 void MCInst::dump_pretty(raw_ostream &OS, const MCInstPrinter *Printer,
85 StringRef Separator,
86 const MCRegisterInfo *RegInfo) const {
87 StringRef InstName = Printer ? Printer->getOpcodeName(getOpcode()) : "";
88 dump_pretty(OS, InstName, Separator, RegInfo);
89 }
90
dump_pretty(raw_ostream & OS,StringRef Name,StringRef Separator,const MCRegisterInfo * RegInfo) const91 void MCInst::dump_pretty(raw_ostream &OS, StringRef Name, StringRef Separator,
92 const MCRegisterInfo *RegInfo) const {
93 OS << "<MCInst #" << getOpcode();
94
95 // Show the instruction opcode name if we have it.
96 if (!Name.empty())
97 OS << ' ' << Name;
98
99 for (unsigned i = 0, e = getNumOperands(); i != e; ++i) {
100 OS << Separator;
101 getOperand(i).print(OS, RegInfo);
102 }
103 OS << ">";
104 }
105
106 #if !defined(NDEBUG) || defined(LLVM_ENABLE_DUMP)
dump() const107 LLVM_DUMP_METHOD void MCInst::dump() const {
108 print(dbgs());
109 dbgs() << "\n";
110 }
111 #endif
112