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 | |
21 | 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(RegNo: getReg()); |
29 | else |
30 | OS << getReg(); |
31 | } else if (isImm()) |
32 | OS << "Imm:" << getImm(); |
33 | else if (isSFPImm()) |
34 | OS << "SFPImm:" << bit_cast<float>(from: getSFPImm()); |
35 | else if (isDFPImm()) |
36 | OS << "DFPImm:" << bit_cast<double>(from: 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 | |
48 | bool MCOperand::evaluateAsConstantImm(int64_t &Imm) const { |
49 | if (isImm()) { |
50 | Imm = getImm(); |
51 | return true; |
52 | } |
53 | return false; |
54 | } |
55 | |
56 | 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>(Val: Expr)->getKind() == MCSymbolRefExpr::VK_None; |
63 | } |
64 | |
65 | #if !defined(NDEBUG) || defined(LLVM_ENABLE_DUMP) |
66 | LLVM_DUMP_METHOD void MCOperand::dump() const { |
67 | print(OS&: dbgs()); |
68 | dbgs() << "\n" ; |
69 | } |
70 | #endif |
71 | |
72 | 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 | |
81 | void MCInst::dump_pretty(raw_ostream &OS, const MCInstPrinter *Printer, |
82 | StringRef Separator, |
83 | const MCRegisterInfo *RegInfo) const { |
84 | StringRef InstName = Printer ? Printer->getOpcodeName(Opcode: getOpcode()) : "" ; |
85 | dump_pretty(OS, Name: InstName, Separator, RegInfo); |
86 | } |
87 | |
88 | 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) |
104 | LLVM_DUMP_METHOD void MCInst::dump() const { |
105 | print(OS&: dbgs()); |
106 | dbgs() << "\n" ; |
107 | } |
108 | #endif |
109 | |