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
|
/*
* Copyright 2011 Advanced Micro Devices, Inc.
*
* 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.
*
* Authors: Tom Stellard <thomas.stellard@amd.com>
*
*/
#include "radeon_llvm_emit.h"
#include <llvm/LLVMContext.h>
#include <llvm/Module.h>
#include <llvm/PassManager.h>
#include <llvm/ADT/Triple.h>
#include <llvm/Support/FormattedStream.h>
#include <llvm/Support/Host.h>
#include <llvm/Support/IRReader.h>
#include <llvm/Support/SourceMgr.h>
#include <llvm/Support/TargetRegistry.h>
#include <llvm/Support/TargetSelect.h>
#include <llvm/Support/Threading.h>
#include <llvm/Target/TargetData.h>
#include <llvm/Target/TargetMachine.h>
#include <llvm/Transforms/Scalar.h>
#include <llvm-c/Target.h>
#include <iostream>
#include <stdlib.h>
#include <stdio.h>
using namespace llvm;
#ifndef EXTERNAL_LLVM
extern "C" {
void LLVMInitializeAMDGPUAsmPrinter(void);
void LLVMInitializeAMDGPUTargetMC(void);
void LLVMInitializeAMDGPUTarget(void);
void LLVMInitializeAMDGPUTargetInfo(void);
}
#endif
namespace {
class LLVMEnsureMultithreaded {
public:
LLVMEnsureMultithreaded()
{
llvm_start_multithreaded();
}
};
static LLVMEnsureMultithreaded lLVMEnsureMultithreaded;
}
/**
* Compile an LLVM module to machine code.
*
* @param bytes This function allocates memory for the byte stream, it is the
* caller's responsibility to free it.
*/
extern "C" unsigned
radeon_llvm_compile(LLVMModuleRef M, unsigned char ** bytes,
unsigned * byte_count, const char * gpu_family,
unsigned dump) {
Triple AMDGPUTriple(sys::getDefaultTargetTriple());
#ifdef EXTERNAL_LLVM
/* XXX: Can we just initialize the AMDGPU target here? */
InitializeAllTargets();
InitializeAllTargetMCs();
#else
LLVMInitializeAMDGPUTargetInfo();
LLVMInitializeAMDGPUTarget();
LLVMInitializeAMDGPUTargetMC();
LLVMInitializeAMDGPUAsmPrinter();
#endif
std::string err;
const Target * AMDGPUTarget = TargetRegistry::lookupTarget("r600", err);
if(!AMDGPUTarget) {
fprintf(stderr, "Can't find target: %s\n", err.c_str());
return 1;
}
Triple::ArchType Arch = Triple::getArchTypeForLLVMName("r600");
if (Arch == Triple::UnknownArch) {
fprintf(stderr, "Unknown Arch\n");
}
AMDGPUTriple.setArch(Arch);
Module * mod = unwrap(M);
std::string FS;
TargetOptions TO;
if (dump) {
mod->dump();
FS += "+DumpCode";
}
std::auto_ptr<TargetMachine> tm(AMDGPUTarget->createTargetMachine(
AMDGPUTriple.getTriple(), gpu_family, FS,
TO, Reloc::Default, CodeModel::Default,
CodeGenOpt::Default
));
TargetMachine &AMDGPUTargetMachine = *tm.get();
PassManager PM;
PM.add(new TargetData(*AMDGPUTargetMachine.getTargetData()));
PM.add(createPromoteMemoryToRegisterPass());
AMDGPUTargetMachine.setAsmVerbosityDefault(true);
std::string CodeString;
raw_string_ostream oStream(CodeString);
formatted_raw_ostream out(oStream);
/* Optional extra paramater true / false to disable verify */
if (AMDGPUTargetMachine.addPassesToEmitFile(PM, out, TargetMachine::CGFT_ObjectFile,
true)){
fprintf(stderr, "AddingPasses failed.\n");
return 1;
}
PM.run(*mod);
out.flush();
std::string &data = oStream.str();
*bytes = (unsigned char*)malloc(data.length() * sizeof(unsigned char));
memcpy(*bytes, data.c_str(), data.length() * sizeof(unsigned char));
*byte_count = data.length();
return 0;
}
|
