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
|
/****************************************************************************
* Copyright (C) 2014-2015 Intel Corporation. All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
* IN THE SOFTWARE.
*
* @file JitManager.h
*
* @brief JitManager contains the LLVM data structures used for JIT generation
*
* Notes:
*
******************************************************************************/
#pragma once
#include "common/os.h"
#include "common/isa.hpp"
#if defined(_WIN32)
#pragma warning(disable : 4146 4244 4267 4800 4996)
#endif
// llvm 3.7+ reuses "DEBUG" as an enum value
#pragma push_macro("DEBUG")
#undef DEBUG
#include "llvm/IR/DataLayout.h"
#include "llvm/IR/Instructions.h"
#include "llvm/IR/LLVMContext.h"
#include "llvm/IR/Module.h"
#include "llvm/IR/Type.h"
#include "llvm/IR/IRBuilder.h"
#include "llvm/IR/IntrinsicInst.h"
#include "llvm/Config/llvm-config.h"
#ifndef LLVM_VERSION_MAJOR
#include "llvm/Config/config.h"
#endif
#ifndef HAVE_LLVM
#define HAVE_LLVM ((LLVM_VERSION_MAJOR << 8) | LLVM_VERSION_MINOR)
#endif
#include "llvm/IR/Verifier.h"
#include "llvm/ExecutionEngine/MCJIT.h"
#include "llvm/Support/FileSystem.h"
#define LLVM_F_NONE sys::fs::F_None
#include "llvm/Analysis/Passes.h"
#if HAVE_LLVM == 0x306
#include "llvm/PassManager.h"
using FunctionPassManager = llvm::FunctionPassManager;
using PassManager = llvm::PassManager;
#else
#include "llvm/IR/LegacyPassManager.h"
using FunctionPassManager = llvm::legacy::FunctionPassManager;
using PassManager = llvm::legacy::PassManager;
#endif
#include "llvm/CodeGen/Passes.h"
#include "llvm/ExecutionEngine/ExecutionEngine.h"
#include "llvm/Support/raw_ostream.h"
#include "llvm/Support/TargetSelect.h"
#include "llvm/Transforms/IPO.h"
#include "llvm/Transforms/Scalar.h"
#include "llvm/Support/Host.h"
#include "llvm/Support/DynamicLibrary.h"
#pragma pop_macro("DEBUG")
using namespace llvm;
//////////////////////////////////////////////////////////////////////////
/// JitInstructionSet
/// @brief Subclass of InstructionSet that allows users to override
/// the reporting of support for certain ISA features. This allows capping
/// the jitted code to a certain feature level, e.g. jit AVX level code on
/// a platform that supports AVX2.
//////////////////////////////////////////////////////////////////////////
class JitInstructionSet : public InstructionSet
{
public:
JitInstructionSet(const char* requestedIsa) : isaRequest(requestedIsa)
{
std::transform(isaRequest.begin(), isaRequest.end(), isaRequest.begin(), ::tolower);
if(isaRequest == "avx")
{
bForceAVX = true;
bForceAVX2 = false;
bForceAVX512 = false;
}
else if(isaRequest == "avx2")
{
bForceAVX = false;
bForceAVX2 = true;
bForceAVX512 = false;
}
#if 0
else if(isaRequest == "avx512")
{
bForceAVX = false;
bForceAVX2 = false;
bForceAVX512 = true;
}
#endif
};
bool AVX2(void) { return bForceAVX ? 0 : InstructionSet::AVX2(); }
bool AVX512F(void) { return (bForceAVX | bForceAVX2) ? 0 : InstructionSet::AVX512F(); }
bool BMI2(void) { return bForceAVX ? 0 : InstructionSet::BMI2(); }
private:
bool bForceAVX = false;
bool bForceAVX2 = false;
bool bForceAVX512 = false;
std::string isaRequest;
};
struct JitLLVMContext : LLVMContext
{
};
//////////////////////////////////////////////////////////////////////////
/// JitManager
//////////////////////////////////////////////////////////////////////////
struct JitManager
{
JitManager(uint32_t w, const char* arch, const char* core);
~JitManager(){};
JitLLVMContext mContext; ///< LLVM compiler
IRBuilder<> mBuilder; ///< LLVM IR Builder
ExecutionEngine* mpExec;
// Need to be rebuilt after a JIT and before building new IR
Module* mpCurrentModule;
bool mIsModuleFinalized;
uint32_t mJitNumber;
uint32_t mVWidth;
// Built in types.
Type* mInt8Ty;
Type* mInt32Ty;
Type* mInt64Ty;
Type* mFP32Ty;
StructType* mV4FP32Ty;
StructType* mV4Int32Ty;
Type* mSimtFP32Ty;
Type* mSimtInt32Ty;
Type* mSimdVectorInt32Ty;
Type* mSimdVectorTy;
// fetch shader types
FunctionType* mFetchShaderTy;
JitInstructionSet mArch;
std::string mCore;
void SetupNewModule();
bool SetupModuleFromIR(const uint8_t *pIR);
void DumpAsm(Function* pFunction, const char* fileName);
static void DumpToFile(Function *f, const char *fileName);
};
|
