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
|
//===---- IRReader.cpp - Reader for LLVM IR files -------------------------===//
//
// 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
//
//===----------------------------------------------------------------------===//
#include "llvm/IRReader/IRReader.h"
#include "llvm-c/IRReader.h"
#include "llvm/AsmParser/Parser.h"
#include "llvm/Bitcode/BitcodeReader.h"
#include "llvm/IR/LLVMContext.h"
#include "llvm/IR/Module.h"
#include "llvm/Support/MemoryBuffer.h"
#include "llvm/Support/SourceMgr.h"
#include "llvm/Support/Timer.h"
#include "llvm/Support/raw_ostream.h"
#include <system_error>
using namespace llvm;
namespace llvm {
extern bool TimePassesIsEnabled;
}
const char TimeIRParsingGroupName[] = "irparse";
const char TimeIRParsingGroupDescription[] = "LLVM IR Parsing";
const char TimeIRParsingName[] = "parse";
const char TimeIRParsingDescription[] = "Parse IR";
std::unique_ptr<Module>
llvm::getLazyIRModule(std::unique_ptr<MemoryBuffer> Buffer, SMDiagnostic &Err,
LLVMContext &Context, bool ShouldLazyLoadMetadata) {
if (isBitcode((const unsigned char *)Buffer->getBufferStart(),
(const unsigned char *)Buffer->getBufferEnd())) {
Expected<std::unique_ptr<Module>> ModuleOrErr = getOwningLazyBitcodeModule(
std::move(Buffer), Context, ShouldLazyLoadMetadata);
if (Error E = ModuleOrErr.takeError()) {
handleAllErrors(std::move(E), [&](ErrorInfoBase &EIB) {
Err = SMDiagnostic(Buffer->getBufferIdentifier(), SourceMgr::DK_Error,
EIB.message());
});
return nullptr;
}
return std::move(ModuleOrErr.get());
}
return parseAssembly(Buffer->getMemBufferRef(), Err, Context);
}
std::unique_ptr<Module> llvm::getLazyIRFileModule(StringRef Filename,
SMDiagnostic &Err,
LLVMContext &Context,
bool ShouldLazyLoadMetadata) {
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 getLazyIRModule(std::move(FileOrErr.get()), Err, Context,
ShouldLazyLoadMetadata);
}
std::unique_ptr<Module> llvm::parseIR(MemoryBufferRef Buffer, SMDiagnostic &Err,
LLVMContext &Context,
DataLayoutCallbackTy DataLayoutCallback) {
NamedRegionTimer T(TimeIRParsingName, TimeIRParsingDescription,
TimeIRParsingGroupName, TimeIRParsingGroupDescription,
TimePassesIsEnabled);
if (isBitcode((const unsigned char *)Buffer.getBufferStart(),
(const unsigned char *)Buffer.getBufferEnd())) {
Expected<std::unique_ptr<Module>> ModuleOrErr =
parseBitcodeFile(Buffer, Context, DataLayoutCallback);
if (Error E = ModuleOrErr.takeError()) {
handleAllErrors(std::move(E), [&](ErrorInfoBase &EIB) {
Err = SMDiagnostic(Buffer.getBufferIdentifier(), SourceMgr::DK_Error,
EIB.message());
});
return nullptr;
}
return std::move(ModuleOrErr.get());
}
return parseAssembly(Buffer, Err, Context, nullptr, DataLayoutCallback);
}
std::unique_ptr<Module>
llvm::parseIRFile(StringRef Filename, SMDiagnostic &Err, LLVMContext &Context,
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;
}
return parseIR(FileOrErr.get()->getMemBufferRef(), Err, Context,
DataLayoutCallback);
}
//===----------------------------------------------------------------------===//
// C API.
//===----------------------------------------------------------------------===//
LLVMBool LLVMParseIRInContext(LLVMContextRef ContextRef,
LLVMMemoryBufferRef MemBuf, LLVMModuleRef *OutM,
char **OutMessage) {
SMDiagnostic Diag;
std::unique_ptr<MemoryBuffer> MB(unwrap(MemBuf));
*OutM =
wrap(parseIR(MB->getMemBufferRef(), Diag, *unwrap(ContextRef)).release());
if(!*OutM) {
if (OutMessage) {
std::string buf;
raw_string_ostream os(buf);
Diag.print(nullptr, os, false);
os.flush();
*OutMessage = strdup(buf.c_str());
}
return 1;
}
return 0;
}
|
