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
|
//===-- SparcMCInstLower.cpp - Convert Sparc MachineInstr to MCInst -------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file contains code to lower Sparc MachineInstrs to their corresponding
// MCInst records.
//
//===----------------------------------------------------------------------===//
#include "Sparc.h"
#include "MCTargetDesc/SparcBaseInfo.h"
#include "MCTargetDesc/SparcMCExpr.h"
#include "llvm/ADT/SmallString.h"
#include "llvm/CodeGen/AsmPrinter.h"
#include "llvm/CodeGen/MachineFunction.h"
#include "llvm/CodeGen/MachineInstr.h"
#include "llvm/CodeGen/MachineOperand.h"
#include "llvm/IR/Mangler.h"
#include "llvm/MC/MCAsmInfo.h"
#include "llvm/MC/MCContext.h"
#include "llvm/MC/MCExpr.h"
#include "llvm/MC/MCInst.h"
using namespace llvm;
static MCOperand LowerSymbolOperand(const MachineInstr *MI,
const MachineOperand &MO,
AsmPrinter &AP) {
SparcMCExpr::VariantKind Kind;
const MCSymbol *Symbol = 0;
unsigned TF = MO.getTargetFlags();
switch(TF) {
default: llvm_unreachable("Unknown target flags on operand");
case SPII::MO_NO_FLAG: Kind = SparcMCExpr::VK_Sparc_None; break;
case SPII::MO_LO: Kind = SparcMCExpr::VK_Sparc_LO; break;
case SPII::MO_HI: Kind = SparcMCExpr::VK_Sparc_HI; break;
case SPII::MO_H44: Kind = SparcMCExpr::VK_Sparc_H44; break;
case SPII::MO_M44: Kind = SparcMCExpr::VK_Sparc_M44; break;
case SPII::MO_L44: Kind = SparcMCExpr::VK_Sparc_L44; break;
case SPII::MO_HH: Kind = SparcMCExpr::VK_Sparc_HH; break;
case SPII::MO_HM: Kind = SparcMCExpr::VK_Sparc_HM; break;
case SPII::MO_TLS_GD_HI22: Kind = SparcMCExpr::VK_Sparc_TLS_GD_HI22; break;
case SPII::MO_TLS_GD_LO10: Kind = SparcMCExpr::VK_Sparc_TLS_GD_LO10; break;
case SPII::MO_TLS_GD_ADD: Kind = SparcMCExpr::VK_Sparc_TLS_GD_ADD; break;
case SPII::MO_TLS_GD_CALL: Kind = SparcMCExpr::VK_Sparc_TLS_GD_CALL; break;
case SPII::MO_TLS_LDM_HI22: Kind = SparcMCExpr::VK_Sparc_TLS_LDM_HI22; break;
case SPII::MO_TLS_LDM_LO10: Kind = SparcMCExpr::VK_Sparc_TLS_LDM_LO10; break;
case SPII::MO_TLS_LDM_ADD: Kind = SparcMCExpr::VK_Sparc_TLS_LDM_ADD; break;
case SPII::MO_TLS_LDM_CALL: Kind = SparcMCExpr::VK_Sparc_TLS_LDM_CALL; break;
case SPII::MO_TLS_LDO_HIX22:Kind = SparcMCExpr::VK_Sparc_TLS_LDO_HIX22; break;
case SPII::MO_TLS_LDO_LOX10:Kind = SparcMCExpr::VK_Sparc_TLS_LDO_LOX10; break;
case SPII::MO_TLS_LDO_ADD: Kind = SparcMCExpr::VK_Sparc_TLS_LDO_ADD; break;
case SPII::MO_TLS_IE_HI22: Kind = SparcMCExpr::VK_Sparc_TLS_IE_HI22; break;
case SPII::MO_TLS_IE_LO10: Kind = SparcMCExpr::VK_Sparc_TLS_IE_LO10; break;
case SPII::MO_TLS_IE_LD: Kind = SparcMCExpr::VK_Sparc_TLS_IE_LD; break;
case SPII::MO_TLS_IE_LDX: Kind = SparcMCExpr::VK_Sparc_TLS_IE_LDX; break;
case SPII::MO_TLS_IE_ADD: Kind = SparcMCExpr::VK_Sparc_TLS_IE_ADD; break;
case SPII::MO_TLS_LE_HIX22: Kind = SparcMCExpr::VK_Sparc_TLS_LE_HIX22; break;
case SPII::MO_TLS_LE_LOX10: Kind = SparcMCExpr::VK_Sparc_TLS_LE_LOX10; break;
}
switch(MO.getType()) {
default: llvm_unreachable("Unknown type in LowerSymbolOperand");
case MachineOperand::MO_MachineBasicBlock:
Symbol = MO.getMBB()->getSymbol();
break;
case MachineOperand::MO_GlobalAddress:
Symbol = AP.getSymbol(MO.getGlobal());
break;
case MachineOperand::MO_BlockAddress:
Symbol = AP.GetBlockAddressSymbol(MO.getBlockAddress());
break;
case MachineOperand::MO_ExternalSymbol:
Symbol = AP.GetExternalSymbolSymbol(MO.getSymbolName());
break;
case MachineOperand::MO_ConstantPoolIndex:
Symbol = AP.GetCPISymbol(MO.getIndex());
break;
}
const MCSymbolRefExpr *MCSym = MCSymbolRefExpr::Create(Symbol,
AP.OutContext);
const SparcMCExpr *expr = SparcMCExpr::Create(Kind, MCSym,
AP.OutContext);
return MCOperand::CreateExpr(expr);
}
static MCOperand LowerOperand(const MachineInstr *MI,
const MachineOperand &MO,
AsmPrinter &AP) {
switch(MO.getType()) {
default: llvm_unreachable("unknown operand type"); break;
case MachineOperand::MO_Register:
if (MO.isImplicit())
break;
return MCOperand::CreateReg(MO.getReg());
case MachineOperand::MO_Immediate:
return MCOperand::CreateImm(MO.getImm());
case MachineOperand::MO_MachineBasicBlock:
case MachineOperand::MO_GlobalAddress:
case MachineOperand::MO_BlockAddress:
case MachineOperand::MO_ExternalSymbol:
case MachineOperand::MO_ConstantPoolIndex:
return LowerSymbolOperand(MI, MO, AP);
case MachineOperand::MO_RegisterMask: break;
}
return MCOperand();
}
void llvm::LowerSparcMachineInstrToMCInst(const MachineInstr *MI,
MCInst &OutMI,
AsmPrinter &AP)
{
OutMI.setOpcode(MI->getOpcode());
for (unsigned i = 0, e = MI->getNumOperands(); i != e; ++i) {
const MachineOperand &MO = MI->getOperand(i);
MCOperand MCOp = LowerOperand(MI, MO, AP);
if (MCOp.isValid())
OutMI.addOperand(MCOp);
}
}
|
