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
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
|
//===- Parser.cpp - Main dispatch module for the Parser library -----------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// This library implements the functionality defined in llvm/AsmParser/Parser.h
//
//===----------------------------------------------------------------------===//
#include "llvm/AsmParser/Parser.h"
#include "llvm/ADT/STLExtras.h"
#include "llvm/AsmParser/LLParser.h"
#include "llvm/IR/Module.h"
#include "llvm/IR/ModuleSummaryIndex.h"
#include "llvm/Support/MemoryBuffer.h"
#include "llvm/Support/SourceMgr.h"
#include <cstring>
#include <system_error>
using namespace llvm;
static bool parseAssemblyInto(MemoryBufferRef F, Module *M,
ModuleSummaryIndex *Index, SMDiagnostic &Err,
SlotMapping *Slots, bool UpgradeDebugInfo,
DataLayoutCallbackTy DataLayoutCallback) {
SourceMgr SM;
std::unique_ptr<MemoryBuffer> Buf = MemoryBuffer::getMemBuffer(F);
SM.AddNewSourceBuffer(std::move(Buf), SMLoc());
LLVMContext Context;
return LLParser(F.getBuffer(), SM, Err, M, Index,
M ? M->getContext() : Context, Slots)
.Run(UpgradeDebugInfo, DataLayoutCallback);
}
bool llvm::parseAssemblyInto(MemoryBufferRef F, Module *M,
ModuleSummaryIndex *Index, SMDiagnostic &Err,
SlotMapping *Slots,
DataLayoutCallbackTy DataLayoutCallback) {
return ::parseAssemblyInto(F, M, Index, Err, Slots,
/*UpgradeDebugInfo*/ true, DataLayoutCallback);
}
std::unique_ptr<Module>
llvm::parseAssembly(MemoryBufferRef F, SMDiagnostic &Err, LLVMContext &Context,
SlotMapping *Slots,
DataLayoutCallbackTy DataLayoutCallback) {
std::unique_ptr<Module> M =
std::make_unique<Module>(F.getBufferIdentifier(), Context);
if (parseAssemblyInto(F, M.get(), nullptr, Err, Slots, DataLayoutCallback))
return nullptr;
return M;
}
std::unique_ptr<Module> llvm::parseAssemblyFile(StringRef Filename,
SMDiagnostic &Err,
LLVMContext &Context,
SlotMapping *Slots) {
ErrorOr<std::unique_ptr<MemoryBuffer>> FileOrErr =
MemoryBuffer::getFileOrSTDIN(Filename);
if (std::error_code EC = FileOrErr.getError()) {
Err = SMDiagnostic(Filename, SourceMgr::DK_Error,
"Could not open input file: " + EC.message());
return nullptr;
}
return parseAssembly(FileOrErr.get()->getMemBufferRef(), Err, Context, Slots);
}
static ParsedModuleAndIndex
parseAssemblyWithIndex(MemoryBufferRef F, SMDiagnostic &Err,
LLVMContext &Context, SlotMapping *Slots,
bool UpgradeDebugInfo,
DataLayoutCallbackTy DataLayoutCallback) {
std::unique_ptr<Module> M =
std::make_unique<Module>(F.getBufferIdentifier(), Context);
std::unique_ptr<ModuleSummaryIndex> Index =
std::make_unique<ModuleSummaryIndex>(/*HaveGVs=*/true);
if (parseAssemblyInto(F, M.get(), Index.get(), Err, Slots, UpgradeDebugInfo,
DataLayoutCallback))
return {nullptr, nullptr};
return {std::move(M), std::move(Index)};
}
ParsedModuleAndIndex llvm::parseAssemblyWithIndex(MemoryBufferRef F,
SMDiagnostic &Err,
LLVMContext &Context,
SlotMapping *Slots) {
return ::parseAssemblyWithIndex(F, Err, Context, Slots,
/*UpgradeDebugInfo*/ true,
[](StringRef) { return None; });
}
static ParsedModuleAndIndex
parseAssemblyFileWithIndex(StringRef Filename, SMDiagnostic &Err,
LLVMContext &Context, SlotMapping *Slots,
bool UpgradeDebugInfo,
DataLayoutCallbackTy DataLayoutCallback) {
ErrorOr<std::unique_ptr<MemoryBuffer>> FileOrErr =
MemoryBuffer::getFileOrSTDIN(Filename, /*IsText=*/true);
if (std::error_code EC = FileOrErr.getError()) {
Err = SMDiagnostic(Filename, SourceMgr::DK_Error,
"Could not open input file: " + EC.message());
return {nullptr, nullptr};
}
return parseAssemblyWithIndex(FileOrErr.get()->getMemBufferRef(), Err,
Context, Slots, UpgradeDebugInfo,
DataLayoutCallback);
}
ParsedModuleAndIndex
llvm::parseAssemblyFileWithIndex(StringRef Filename, SMDiagnostic &Err,
LLVMContext &Context, SlotMapping *Slots,
DataLayoutCallbackTy DataLayoutCallback) {
return ::parseAssemblyFileWithIndex(Filename, Err, Context, Slots,
/*UpgradeDebugInfo*/ true,
DataLayoutCallback);
}
ParsedModuleAndIndex llvm::parseAssemblyFileWithIndexNoUpgradeDebugInfo(
StringRef Filename, SMDiagnostic &Err, LLVMContext &Context,
SlotMapping *Slots, DataLayoutCallbackTy DataLayoutCallback) {
return ::parseAssemblyFileWithIndex(Filename, Err, Context, Slots,
/*UpgradeDebugInfo*/ false,
DataLayoutCallback);
}
std::unique_ptr<Module> llvm::parseAssemblyString(StringRef AsmString,
SMDiagnostic &Err,
LLVMContext &Context,
SlotMapping *Slots) {
MemoryBufferRef F(AsmString, "<string>");
return parseAssembly(F, Err, Context, Slots);
}
static bool parseSummaryIndexAssemblyInto(MemoryBufferRef F,
ModuleSummaryIndex &Index,
SMDiagnostic &Err) {
SourceMgr SM;
std::unique_ptr<MemoryBuffer> Buf = MemoryBuffer::getMemBuffer(F);
SM.AddNewSourceBuffer(std::move(Buf), SMLoc());
// The parser holds a reference to a context that is unused when parsing the
// index, but we need to initialize it.
LLVMContext unusedContext;
return LLParser(F.getBuffer(), SM, Err, nullptr, &Index, unusedContext)
.Run(true, [](StringRef) { return None; });
}
std::unique_ptr<ModuleSummaryIndex>
llvm::parseSummaryIndexAssembly(MemoryBufferRef F, SMDiagnostic &Err) {
std::unique_ptr<ModuleSummaryIndex> Index =
std::make_unique<ModuleSummaryIndex>(/*HaveGVs=*/false);
if (parseSummaryIndexAssemblyInto(F, *Index, Err))
return nullptr;
return Index;
}
std::unique_ptr<ModuleSummaryIndex>
llvm::parseSummaryIndexAssemblyFile(StringRef Filename, SMDiagnostic &Err) {
ErrorOr<std::unique_ptr<MemoryBuffer>> FileOrErr =
MemoryBuffer::getFileOrSTDIN(Filename);
if (std::error_code EC = FileOrErr.getError()) {
Err = SMDiagnostic(Filename, SourceMgr::DK_Error,
"Could not open input file: " + EC.message());
return nullptr;
}
return parseSummaryIndexAssembly(FileOrErr.get()->getMemBufferRef(), Err);
}
Constant *llvm::parseConstantValue(StringRef Asm, SMDiagnostic &Err,
const Module &M, const SlotMapping *Slots) {
SourceMgr SM;
std::unique_ptr<MemoryBuffer> Buf = MemoryBuffer::getMemBuffer(Asm);
SM.AddNewSourceBuffer(std::move(Buf), SMLoc());
Constant *C;
if (LLParser(Asm, SM, Err, const_cast<Module *>(&M), nullptr, M.getContext())
.parseStandaloneConstantValue(C, Slots))
return nullptr;
return C;
}
Type *llvm::parseType(StringRef Asm, SMDiagnostic &Err, const Module &M,
const SlotMapping *Slots) {
unsigned Read;
Type *Ty = parseTypeAtBeginning(Asm, Read, Err, M, Slots);
if (!Ty)
return nullptr;
if (Read != Asm.size()) {
SourceMgr SM;
std::unique_ptr<MemoryBuffer> Buf = MemoryBuffer::getMemBuffer(Asm);
SM.AddNewSourceBuffer(std::move(Buf), SMLoc());
Err = SM.GetMessage(SMLoc::getFromPointer(Asm.begin() + Read),
SourceMgr::DK_Error, "expected end of string");
return nullptr;
}
return Ty;
}
Type *llvm::parseTypeAtBeginning(StringRef Asm, unsigned &Read,
SMDiagnostic &Err, const Module &M,
const SlotMapping *Slots) {
SourceMgr SM;
std::unique_ptr<MemoryBuffer> Buf = MemoryBuffer::getMemBuffer(Asm);
SM.AddNewSourceBuffer(std::move(Buf), SMLoc());
Type *Ty;
if (LLParser(Asm, SM, Err, const_cast<Module *>(&M), nullptr, M.getContext())
.parseTypeAtBeginning(Ty, Read, Slots))
return nullptr;
return Ty;
}
|
