1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
|
//===-- MCAsmParser.cpp - Abstract Asm Parser Interface -------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "llvm/MC/MCParser/MCAsmParser.h"
#include "llvm/ADT/Twine.h"
#include "llvm/MC/MCParser/MCAsmLexer.h"
#include "llvm/MC/MCParser/MCParsedAsmOperand.h"
#include "llvm/MC/MCParser/MCTargetAsmParser.h"
#include "llvm/Support/Debug.h"
#include "llvm/Support/SourceMgr.h"
#include "llvm/Support/raw_ostream.h"
using namespace llvm;
MCAsmParser::MCAsmParser() : TargetParser(nullptr), ShowParsedOperands(0) {
}
MCAsmParser::~MCAsmParser() {
}
void MCAsmParser::setTargetParser(MCTargetAsmParser &P) {
assert(!TargetParser && "Target parser is already initialized!");
TargetParser = &P;
TargetParser->Initialize(*this);
}
const AsmToken &MCAsmParser::getTok() const {
return getLexer().getTok();
}
bool MCAsmParser::parseTokenLoc(SMLoc &Loc) {
Loc = getTok().getLoc();
return false;
}
bool MCAsmParser::parseEOL(const Twine &Msg) {
if (getTok().getKind() == AsmToken::Hash) {
StringRef CommentStr = parseStringToEndOfStatement();
getLexer().Lex();
getLexer().UnLex(AsmToken(AsmToken::EndOfStatement, CommentStr));
}
if (getTok().getKind() != AsmToken::EndOfStatement)
return Error(getTok().getLoc(), Msg);
Lex();
return false;
}
bool MCAsmParser::parseToken(AsmToken::TokenKind T, const Twine &Msg) {
if (T == AsmToken::EndOfStatement)
return parseEOL(Msg);
if (getTok().getKind() != T)
return Error(getTok().getLoc(), Msg);
Lex();
return false;
}
bool MCAsmParser::parseIntToken(int64_t &V, const Twine &Msg) {
if (getTok().getKind() != AsmToken::Integer)
return TokError(Msg);
V = getTok().getIntVal();
Lex();
return false;
}
bool MCAsmParser::parseOptionalToken(AsmToken::TokenKind T, bool &Present) {
Present = (getTok().getKind() == T);
if (Present)
Lex();
return false;
}
bool MCAsmParser::check(bool P, const Twine &Msg) {
return check(P, getTok().getLoc(), Msg);
}
bool MCAsmParser::check(bool P, SMLoc Loc, const Twine &Msg) {
if (P)
return Error(Loc, Msg);
return false;
}
bool MCAsmParser::TokError(const Twine &Msg, ArrayRef<SMRange> Ranges) {
Error(getLexer().getLoc(), Msg, Ranges);
return true;
}
bool MCAsmParser::parseExpression(const MCExpr *&Res) {
SMLoc L;
return parseExpression(Res, L);
}
LLVM_DUMP_METHOD void MCParsedAsmOperand::dump() const {
dbgs() << " " << *this;
}
|
