1 //===-- ARMConstantPoolValue.cpp - ARM constantpool value -----------------===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // This file implements the ARM specific constantpool value class.
12 //===----------------------------------------------------------------------===//
14 #include "ARMConstantPoolValue.h"
15 #include "llvm/ADT/FoldingSet.h"
16 #include "llvm/CodeGen/MachineBasicBlock.h"
17 #include "llvm/IR/Constant.h"
18 #include "llvm/IR/Constants.h"
19 #include "llvm/IR/GlobalValue.h"
20 #include "llvm/IR/Type.h"
21 #include "llvm/Support/raw_ostream.h"
25 //===----------------------------------------------------------------------===//
26 // ARMConstantPoolValue
27 //===----------------------------------------------------------------------===//
29 ARMConstantPoolValue::ARMConstantPoolValue(Type *Ty, unsigned id,
30 ARMCP::ARMCPKind kind,
32 ARMCP::ARMCPModifier modifier,
33 bool addCurrentAddress)
34 : MachineConstantPoolValue(Ty), LabelId(id), Kind(kind),
35 PCAdjust(PCAdj), Modifier(modifier),
36 AddCurrentAddress(addCurrentAddress) {}
38 ARMConstantPoolValue::ARMConstantPoolValue(LLVMContext &C, unsigned id,
39 ARMCP::ARMCPKind kind,
41 ARMCP::ARMCPModifier modifier,
42 bool addCurrentAddress)
43 : MachineConstantPoolValue((Type*)Type::getInt32Ty(C)),
44 LabelId(id), Kind(kind), PCAdjust(PCAdj), Modifier(modifier),
45 AddCurrentAddress(addCurrentAddress) {}
47 ARMConstantPoolValue::~ARMConstantPoolValue() {}
49 const char *ARMConstantPoolValue::getModifierText() const {
51 // FIXME: Are these case sensitive? It'd be nice to lower-case all the
52 // strings if that's legal.
53 case ARMCP::no_modifier: return "none";
54 case ARMCP::TLSGD: return "tlsgd";
55 case ARMCP::GOT: return "GOT";
56 case ARMCP::GOTOFF: return "GOTOFF";
57 case ARMCP::GOTTPOFF: return "gottpoff";
58 case ARMCP::TPOFF: return "tpoff";
60 llvm_unreachable("Unknown modifier!");
63 int ARMConstantPoolValue::getExistingMachineCPValue(MachineConstantPool *CP,
65 llvm_unreachable("Shouldn't be calling this directly!");
69 ARMConstantPoolValue::addSelectionDAGCSEId(FoldingSetNodeID &ID) {
70 ID.AddInteger(LabelId);
71 ID.AddInteger(PCAdjust);
75 ARMConstantPoolValue::hasSameValue(ARMConstantPoolValue *ACPV) {
76 if (ACPV->Kind == Kind &&
77 ACPV->PCAdjust == PCAdjust &&
78 ACPV->Modifier == Modifier) {
79 if (ACPV->LabelId == LabelId)
81 // Two PC relative constpool entries containing the same GV address or
82 // external symbols. FIXME: What about blockaddress?
83 if (Kind == ARMCP::CPValue || Kind == ARMCP::CPExtSymbol)
89 void ARMConstantPoolValue::dump() const {
90 errs() << " " << *this;
93 void ARMConstantPoolValue::print(raw_ostream &O) const {
94 if (Modifier) O << "(" << getModifierText() << ")";
96 O << "-(LPC" << LabelId << "+" << (unsigned)PCAdjust;
97 if (AddCurrentAddress) O << "-.";
102 //===----------------------------------------------------------------------===//
103 // ARMConstantPoolConstant
104 //===----------------------------------------------------------------------===//
106 ARMConstantPoolConstant::ARMConstantPoolConstant(Type *Ty,
109 ARMCP::ARMCPKind Kind,
111 ARMCP::ARMCPModifier Modifier,
112 bool AddCurrentAddress)
113 : ARMConstantPoolValue(Ty, ID, Kind, PCAdj, Modifier, AddCurrentAddress),
116 ARMConstantPoolConstant::ARMConstantPoolConstant(const Constant *C,
118 ARMCP::ARMCPKind Kind,
120 ARMCP::ARMCPModifier Modifier,
121 bool AddCurrentAddress)
122 : ARMConstantPoolValue((Type*)C->getType(), ID, Kind, PCAdj, Modifier,
126 ARMConstantPoolConstant *
127 ARMConstantPoolConstant::Create(const Constant *C, unsigned ID) {
128 return new ARMConstantPoolConstant(C, ID, ARMCP::CPValue, 0,
129 ARMCP::no_modifier, false);
132 ARMConstantPoolConstant *
133 ARMConstantPoolConstant::Create(const GlobalValue *GV,
134 ARMCP::ARMCPModifier Modifier) {
135 return new ARMConstantPoolConstant((Type*)Type::getInt32Ty(GV->getContext()),
136 GV, 0, ARMCP::CPValue, 0,
140 ARMConstantPoolConstant *
141 ARMConstantPoolConstant::Create(const Constant *C, unsigned ID,
142 ARMCP::ARMCPKind Kind, unsigned char PCAdj) {
143 return new ARMConstantPoolConstant(C, ID, Kind, PCAdj,
144 ARMCP::no_modifier, false);
147 ARMConstantPoolConstant *
148 ARMConstantPoolConstant::Create(const Constant *C, unsigned ID,
149 ARMCP::ARMCPKind Kind, unsigned char PCAdj,
150 ARMCP::ARMCPModifier Modifier,
151 bool AddCurrentAddress) {
152 return new ARMConstantPoolConstant(C, ID, Kind, PCAdj, Modifier,
156 const GlobalValue *ARMConstantPoolConstant::getGV() const {
157 return dyn_cast_or_null<GlobalValue>(CVal);
160 const BlockAddress *ARMConstantPoolConstant::getBlockAddress() const {
161 return dyn_cast_or_null<BlockAddress>(CVal);
164 int ARMConstantPoolConstant::getExistingMachineCPValue(MachineConstantPool *CP,
165 unsigned Alignment) {
166 unsigned AlignMask = Alignment - 1;
167 const std::vector<MachineConstantPoolEntry> Constants = CP->getConstants();
168 for (unsigned i = 0, e = Constants.size(); i != e; ++i) {
169 if (Constants[i].isMachineConstantPoolEntry() &&
170 (Constants[i].getAlignment() & AlignMask) == 0) {
171 ARMConstantPoolValue *CPV =
172 (ARMConstantPoolValue *)Constants[i].Val.MachineCPVal;
173 ARMConstantPoolConstant *APC = dyn_cast<ARMConstantPoolConstant>(CPV);
175 if (APC->CVal == CVal && equals(APC))
183 bool ARMConstantPoolConstant::hasSameValue(ARMConstantPoolValue *ACPV) {
184 const ARMConstantPoolConstant *ACPC = dyn_cast<ARMConstantPoolConstant>(ACPV);
185 return ACPC && ACPC->CVal == CVal && ARMConstantPoolValue::hasSameValue(ACPV);
188 void ARMConstantPoolConstant::addSelectionDAGCSEId(FoldingSetNodeID &ID) {
190 ARMConstantPoolValue::addSelectionDAGCSEId(ID);
193 void ARMConstantPoolConstant::print(raw_ostream &O) const {
194 O << CVal->getName();
195 ARMConstantPoolValue::print(O);
198 //===----------------------------------------------------------------------===//
199 // ARMConstantPoolSymbol
200 //===----------------------------------------------------------------------===//
202 ARMConstantPoolSymbol::ARMConstantPoolSymbol(LLVMContext &C, const char *s,
205 ARMCP::ARMCPModifier Modifier,
206 bool AddCurrentAddress)
207 : ARMConstantPoolValue(C, id, ARMCP::CPExtSymbol, PCAdj, Modifier,
211 ARMConstantPoolSymbol *
212 ARMConstantPoolSymbol::Create(LLVMContext &C, const char *s,
213 unsigned ID, unsigned char PCAdj) {
214 return new ARMConstantPoolSymbol(C, s, ID, PCAdj, ARMCP::no_modifier, false);
217 int ARMConstantPoolSymbol::getExistingMachineCPValue(MachineConstantPool *CP,
218 unsigned Alignment) {
219 unsigned AlignMask = Alignment - 1;
220 const std::vector<MachineConstantPoolEntry> Constants = CP->getConstants();
221 for (unsigned i = 0, e = Constants.size(); i != e; ++i) {
222 if (Constants[i].isMachineConstantPoolEntry() &&
223 (Constants[i].getAlignment() & AlignMask) == 0) {
224 ARMConstantPoolValue *CPV =
225 (ARMConstantPoolValue *)Constants[i].Val.MachineCPVal;
226 ARMConstantPoolSymbol *APS = dyn_cast<ARMConstantPoolSymbol>(CPV);
229 if (APS->S == S && equals(APS))
237 bool ARMConstantPoolSymbol::hasSameValue(ARMConstantPoolValue *ACPV) {
238 const ARMConstantPoolSymbol *ACPS = dyn_cast<ARMConstantPoolSymbol>(ACPV);
239 return ACPS && ACPS->S == S && ARMConstantPoolValue::hasSameValue(ACPV);
242 void ARMConstantPoolSymbol::addSelectionDAGCSEId(FoldingSetNodeID &ID) {
244 ARMConstantPoolValue::addSelectionDAGCSEId(ID);
247 void ARMConstantPoolSymbol::print(raw_ostream &O) const {
249 ARMConstantPoolValue::print(O);
252 //===----------------------------------------------------------------------===//
253 // ARMConstantPoolMBB
254 //===----------------------------------------------------------------------===//
256 ARMConstantPoolMBB::ARMConstantPoolMBB(LLVMContext &C,
257 const MachineBasicBlock *mbb,
258 unsigned id, unsigned char PCAdj,
259 ARMCP::ARMCPModifier Modifier,
260 bool AddCurrentAddress)
261 : ARMConstantPoolValue(C, id, ARMCP::CPMachineBasicBlock, PCAdj,
262 Modifier, AddCurrentAddress),
265 ARMConstantPoolMBB *ARMConstantPoolMBB::Create(LLVMContext &C,
266 const MachineBasicBlock *mbb,
268 unsigned char PCAdj) {
269 return new ARMConstantPoolMBB(C, mbb, ID, PCAdj, ARMCP::no_modifier, false);
272 int ARMConstantPoolMBB::getExistingMachineCPValue(MachineConstantPool *CP,
273 unsigned Alignment) {
274 unsigned AlignMask = Alignment - 1;
275 const std::vector<MachineConstantPoolEntry> Constants = CP->getConstants();
276 for (unsigned i = 0, e = Constants.size(); i != e; ++i) {
277 if (Constants[i].isMachineConstantPoolEntry() &&
278 (Constants[i].getAlignment() & AlignMask) == 0) {
279 ARMConstantPoolValue *CPV =
280 (ARMConstantPoolValue *)Constants[i].Val.MachineCPVal;
281 ARMConstantPoolMBB *APMBB = dyn_cast<ARMConstantPoolMBB>(CPV);
282 if (!APMBB) continue;
284 if (APMBB->MBB == MBB && equals(APMBB))
292 bool ARMConstantPoolMBB::hasSameValue(ARMConstantPoolValue *ACPV) {
293 const ARMConstantPoolMBB *ACPMBB = dyn_cast<ARMConstantPoolMBB>(ACPV);
294 return ACPMBB && ACPMBB->MBB == MBB &&
295 ARMConstantPoolValue::hasSameValue(ACPV);
298 void ARMConstantPoolMBB::addSelectionDAGCSEId(FoldingSetNodeID &ID) {
300 ARMConstantPoolValue::addSelectionDAGCSEId(ID);
303 void ARMConstantPoolMBB::print(raw_ostream &O) const {
304 O << "BB#" << MBB->getNumber();
305 ARMConstantPoolValue::print(O);