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
|
//===--- OrcLazyJIT.h - Basic Orc-based JIT for lazy execution --*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// Simple Orc-based JIT. Uses the compile-on-demand layer to break up and
// lazily compile modules.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_TOOLS_LLI_ORCLAZYJIT_H
#define LLVM_TOOLS_LLI_ORCLAZYJIT_H
#include "llvm/ADT/Triple.h"
#include "llvm/ExecutionEngine/Orc/CompileOnDemandLayer.h"
#include "llvm/ExecutionEngine/Orc/CompileUtils.h"
#include "llvm/ExecutionEngine/Orc/IRCompileLayer.h"
#include "llvm/ExecutionEngine/Orc/LazyEmittingLayer.h"
#include "llvm/ExecutionEngine/Orc/ObjectLinkingLayer.h"
#include "llvm/IR/LLVMContext.h"
namespace llvm {
class OrcLazyJIT {
public:
typedef orc::JITCompileCallbackManagerBase CompileCallbackMgr;
typedef orc::ObjectLinkingLayer<> ObjLayerT;
typedef orc::IRCompileLayer<ObjLayerT> CompileLayerT;
typedef orc::LazyEmittingLayer<CompileLayerT> LazyEmitLayerT;
typedef orc::CompileOnDemandLayer<LazyEmitLayerT,
CompileCallbackMgr> CODLayerT;
typedef CODLayerT::ModuleSetHandleT ModuleHandleT;
OrcLazyJIT(std::unique_ptr<TargetMachine> TM, LLVMContext &Context)
: Error(false), TM(std::move(TM)),
Mang(this->TM->getDataLayout()),
ObjectLayer([](){ return llvm::make_unique<SectionMemoryManager>(); }),
CompileLayer(ObjectLayer, orc::SimpleCompiler(*this->TM)),
LazyEmitLayer(CompileLayer),
CCMgr(createCallbackMgr(Triple(this->TM->getTargetTriple()), Context)),
CODLayer(LazyEmitLayer, *CCMgr) { }
bool Ok() const { return !Error; }
ModuleHandleT addModule(std::unique_ptr<Module> M) {
// Attach a data-layout if one isn't already present.
if (M->getDataLayout().isDefault())
M->setDataLayout(*TM->getDataLayout());
std::vector<std::unique_ptr<Module>> S;
S.push_back(std::move(M));
return CODLayer.addModuleSet(std::move(S));
}
orc::JITSymbol findSymbol(const std::string &Name) {
return CODLayer.findSymbol(mangle(Name), true);
}
orc::JITSymbol findSymbolIn(ModuleHandleT H, const std::string &Name) {
return CODLayer.findSymbolIn(H, mangle(Name), true);
}
private:
std::unique_ptr<CompileCallbackMgr>
createCallbackMgr(Triple T, LLVMContext &Context);
std::string mangle(const std::string &Name) {
std::string MangledName;
{
raw_string_ostream MangledNameStream(MangledName);
Mang.getNameWithPrefix(MangledNameStream, Name);
}
return MangledName;
}
bool Error;
std::unique_ptr<TargetMachine> TM;
Mangler Mang;
ObjLayerT ObjectLayer;
CompileLayerT CompileLayer;
LazyEmitLayerT LazyEmitLayer;
std::unique_ptr<CompileCallbackMgr> CCMgr;
CODLayerT CODLayer;
};
int runOrcLazyJIT(std::unique_ptr<Module> M, int ArgC, char* ArgV[]);
} // end namespace llvm
#endif
|
