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
|
//===---- IRReader.cpp - Reader for LLVM IR files -------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "llvm/IRReader/IRReader.h"
#include "llvm/ADT/OwningPtr.h"
#include "llvm/Assembly/Parser.h"
#include "llvm/Bitcode/ReaderWriter.h"
#include "llvm/Support/MemoryBuffer.h"
#include "llvm/Support/SourceMgr.h"
#include "llvm/Support/system_error.h"
using namespace llvm;
Module *llvm::getLazyIRModule(MemoryBuffer *Buffer, SMDiagnostic &Err,
LLVMContext &Context) {
if (isBitcode((const unsigned char *)Buffer->getBufferStart(),
(const unsigned char *)Buffer->getBufferEnd())) {
std::string ErrMsg;
Module *M = getLazyBitcodeModule(Buffer, Context, &ErrMsg);
if (M == 0) {
Err = SMDiagnostic(Buffer->getBufferIdentifier(), SourceMgr::DK_Error,
ErrMsg);
// ParseBitcodeFile does not take ownership of the Buffer in the
// case of an error.
delete Buffer;
}
return M;
}
return ParseAssembly(Buffer, 0, Err, Context);
}
Module *llvm::getLazyIRFileModule(const std::string &Filename, SMDiagnostic &Err,
LLVMContext &Context) {
OwningPtr<MemoryBuffer> File;
if (error_code ec = MemoryBuffer::getFileOrSTDIN(Filename.c_str(), File)) {
Err = SMDiagnostic(Filename, SourceMgr::DK_Error,
"Could not open input file: " + ec.message());
return 0;
}
return getLazyIRModule(File.take(), Err, Context);
}
Module *llvm::ParseIR(MemoryBuffer *Buffer, SMDiagnostic &Err,
LLVMContext &Context) {
if (isBitcode((const unsigned char *)Buffer->getBufferStart(),
(const unsigned char *)Buffer->getBufferEnd())) {
std::string ErrMsg;
Module *M = ParseBitcodeFile(Buffer, Context, &ErrMsg);
if (M == 0)
Err = SMDiagnostic(Buffer->getBufferIdentifier(), SourceMgr::DK_Error,
ErrMsg);
// ParseBitcodeFile does not take ownership of the Buffer.
delete Buffer;
return M;
}
return ParseAssembly(Buffer, 0, Err, Context);
}
Module *llvm::ParseIRFile(const std::string &Filename, SMDiagnostic &Err,
LLVMContext &Context) {
OwningPtr<MemoryBuffer> File;
if (error_code ec = MemoryBuffer::getFileOrSTDIN(Filename.c_str(), File)) {
Err = SMDiagnostic(Filename, SourceMgr::DK_Error,
"Could not open input file: " + ec.message());
return 0;
}
return ParseIR(File.take(), Err, Context);
}
|
