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
|
//===-- AMDGPUAsmPrinter.h - Print AMDGPU assembly code ---------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
/// \file
/// AMDGPU Assembly printer class.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_LIB_TARGET_AMDGPU_AMDGPUASMPRINTER_H
#define LLVM_LIB_TARGET_AMDGPU_AMDGPUASMPRINTER_H
#include "AMDGPU.h"
#include "AMDKernelCodeT.h"
#include "AMDGPUHSAMetadataStreamer.h"
#include "SIProgramInfo.h"
#include "llvm/ADT/StringRef.h"
#include "llvm/CodeGen/AsmPrinter.h"
#include "llvm/Support/AMDHSAKernelDescriptor.h"
#include <cstddef>
#include <cstdint>
#include <limits>
#include <memory>
#include <string>
#include <vector>
namespace llvm {
class AMDGPUMachineFunction;
class AMDGPUTargetStreamer;
class MCOperand;
class GCNSubtarget;
class AMDGPUAsmPrinter final : public AsmPrinter {
private:
// Track resource usage for callee functions.
struct SIFunctionResourceInfo {
// Track the number of explicitly used VGPRs. Special registers reserved at
// the end are tracked separately.
int32_t NumVGPR = 0;
int32_t NumExplicitSGPR = 0;
uint64_t PrivateSegmentSize = 0;
bool UsesVCC = false;
bool UsesFlatScratch = false;
bool HasDynamicallySizedStack = false;
bool HasRecursion = false;
int32_t getTotalNumSGPRs(const GCNSubtarget &ST) const;
};
SIProgramInfo CurrentProgramInfo;
DenseMap<const Function *, SIFunctionResourceInfo> CallGraphResourceInfo;
std::unique_ptr<AMDGPU::HSAMD::MetadataStreamer> HSAMetadataStream;
std::map<uint32_t, uint32_t> PALMetadataMap;
uint64_t getFunctionCodeSize(const MachineFunction &MF) const;
SIFunctionResourceInfo analyzeResourceUsage(const MachineFunction &MF) const;
void readPALMetadata(Module &M);
void getSIProgramInfo(SIProgramInfo &Out, const MachineFunction &MF);
void getAmdKernelCode(amd_kernel_code_t &Out, const SIProgramInfo &KernelInfo,
const MachineFunction &MF) const;
void findNumUsedRegistersSI(const MachineFunction &MF,
unsigned &NumSGPR,
unsigned &NumVGPR) const;
/// Emit register usage information so that the GPU driver
/// can correctly setup the GPU state.
void EmitProgramInfoSI(const MachineFunction &MF,
const SIProgramInfo &KernelInfo);
void EmitPALMetadata(const MachineFunction &MF,
const SIProgramInfo &KernelInfo);
void emitCommonFunctionComments(uint32_t NumVGPR,
uint32_t NumSGPR,
uint64_t ScratchSize,
uint64_t CodeSize,
const AMDGPUMachineFunction* MFI);
uint16_t getAmdhsaKernelCodeProperties(
const MachineFunction &MF) const;
amdhsa::kernel_descriptor_t getAmdhsaKernelDescriptor(
const MachineFunction &MF,
const SIProgramInfo &PI) const;
public:
explicit AMDGPUAsmPrinter(TargetMachine &TM,
std::unique_ptr<MCStreamer> Streamer);
StringRef getPassName() const override;
const MCSubtargetInfo* getSTI() const;
AMDGPUTargetStreamer* getTargetStreamer() const;
bool doFinalization(Module &M) override;
bool runOnMachineFunction(MachineFunction &MF) override;
/// Wrapper for MCInstLowering.lowerOperand() for the tblgen'erated
/// pseudo lowering.
bool lowerOperand(const MachineOperand &MO, MCOperand &MCOp) const;
/// Lower the specified LLVM Constant to an MCExpr.
/// The AsmPrinter::lowerConstantof does not know how to lower
/// addrspacecast, therefore they should be lowered by this function.
const MCExpr *lowerConstant(const Constant *CV) override;
/// tblgen'erated driver function for lowering simple MI->MC pseudo
/// instructions.
bool emitPseudoExpansionLowering(MCStreamer &OutStreamer,
const MachineInstr *MI);
/// Implemented in AMDGPUMCInstLower.cpp
void EmitInstruction(const MachineInstr *MI) override;
void EmitFunctionBodyStart() override;
void EmitFunctionBodyEnd() override;
void EmitFunctionEntryLabel() override;
void EmitBasicBlockStart(const MachineBasicBlock &MBB) const override;
void EmitGlobalVariable(const GlobalVariable *GV) override;
void EmitStartOfAsmFile(Module &M) override;
void EmitEndOfAsmFile(Module &M) override;
bool isBlockOnlyReachableByFallthrough(
const MachineBasicBlock *MBB) const override;
bool PrintAsmOperand(const MachineInstr *MI, unsigned OpNo,
unsigned AsmVariant, const char *ExtraCode,
raw_ostream &O) override;
protected:
mutable std::vector<std::string> DisasmLines, HexLines;
mutable size_t DisasmLineMaxLen;
};
} // end namespace llvm
#endif // LLVM_LIB_TARGET_AMDGPU_AMDGPUASMPRINTER_H
|
GitWeb