-//===- ARMConstantPoolValue.h - ARM constantpool value ----------*- C++ -*-===//
+//===-- ARMConstantPoolValue.h - ARM constantpool value ---------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
//
//===----------------------------------------------------------------------===//
-#ifndef LLVM_TARGET_ARM_CONSTANTPOOLVALUE_H
-#define LLVM_TARGET_ARM_CONSTANTPOOLVALUE_H
+#ifndef LLVM_LIB_TARGET_ARM_ARMCONSTANTPOOLVALUE_H
+#define LLVM_LIB_TARGET_ARM_ARMCONSTANTPOOLVALUE_H
#include "llvm/CodeGen/MachineConstantPool.h"
+#include "llvm/Support/Casting.h"
#include "llvm/Support/ErrorHandling.h"
#include <cstddef>
enum ARMCPModifier {
no_modifier,
TLSGD,
- GOT,
- GOTOFF,
+ GOT_PREL,
GOTTPOFF,
TPOFF
};
/// represent PC-relative displacement between the address of the load
/// instruction and the constant being loaded, i.e. (&GV-(LPIC+8)).
class ARMConstantPoolValue : public MachineConstantPoolValue {
- const MachineBasicBlock *MBB; // MachineBasicBlock being loaded.
- const char *S; // ExtSymbol being loaded.
unsigned LabelId; // Label id of the load.
ARMCP::ARMCPKind Kind; // Kind of constant.
unsigned char PCAdjust; // Extra adjustment if constantpool is pc-relative.
unsigned char PCAdj, ARMCP::ARMCPModifier Modifier,
bool AddCurrentAddress);
+ ARMConstantPoolValue(LLVMContext &C, unsigned id, ARMCP::ARMCPKind Kind,
+ unsigned char PCAdj, ARMCP::ARMCPModifier Modifier,
+ bool AddCurrentAddress);
+
+ template <typename Derived>
+ int getExistingMachineCPValueImpl(MachineConstantPool *CP,
+ unsigned Alignment) {
+ unsigned AlignMask = Alignment - 1;
+ const std::vector<MachineConstantPoolEntry> &Constants = CP->getConstants();
+ for (unsigned i = 0, e = Constants.size(); i != e; ++i) {
+ if (Constants[i].isMachineConstantPoolEntry() &&
+ (Constants[i].getAlignment() & AlignMask) == 0) {
+ ARMConstantPoolValue *CPV =
+ (ARMConstantPoolValue *)Constants[i].Val.MachineCPVal;
+ if (Derived *APC = dyn_cast<Derived>(CPV))
+ if (cast<Derived>(this)->equals(APC))
+ return i;
+ }
+ }
+
+ return -1;
+ }
+
public:
- ARMConstantPoolValue(LLVMContext &C, const MachineBasicBlock *mbb,unsigned id,
- ARMCP::ARMCPKind Kind = ARMCP::CPValue,
- unsigned char PCAdj = 0,
- ARMCP::ARMCPModifier Modifier = ARMCP::no_modifier,
- bool AddCurrentAddress = false);
- ARMConstantPoolValue(LLVMContext &C, const char *s, unsigned id,
- unsigned char PCAdj = 0,
- ARMCP::ARMCPModifier Modifier = ARMCP::no_modifier,
- bool AddCurrentAddress = false);
- ~ARMConstantPoolValue();
-
- const char *getSymbol() const { return S; }
- const MachineBasicBlock *getMBB() const;
+ ~ARMConstantPoolValue() override;
ARMCP::ARMCPModifier getModifier() const { return Modifier; }
const char *getModifierText() const;
bool isExtSymbol() const { return Kind == ARMCP::CPExtSymbol; }
bool isBlockAddress() const { return Kind == ARMCP::CPBlockAddress; }
bool isLSDA() const { return Kind == ARMCP::CPLSDA; }
- bool isMachineBasicBlock() { return Kind == ARMCP::CPMachineBasicBlock; }
+ bool isMachineBasicBlock() const{ return Kind == ARMCP::CPMachineBasicBlock; }
- virtual unsigned getRelocationInfo() const { return 2; }
+ int getExistingMachineCPValue(MachineConstantPool *CP,
+ unsigned Alignment) override;
- virtual int getExistingMachineCPValue(MachineConstantPool *CP,
- unsigned Alignment);
-
- virtual void addSelectionDAGCSEId(FoldingSetNodeID &ID);
+ void addSelectionDAGCSEId(FoldingSetNodeID &ID) override;
/// hasSameValue - Return true if this ARM constpool value can share the same
/// constantpool entry as another ARM constpool value.
virtual bool hasSameValue(ARMConstantPoolValue *ACPV);
- virtual void print(raw_ostream &O) const;
+ bool equals(const ARMConstantPoolValue *A) const {
+ return this->LabelId == A->LabelId &&
+ this->PCAdjust == A->PCAdjust &&
+ this->Modifier == A->Modifier;
+ }
+
+ void print(raw_ostream &O) const override;
void print(raw_ostream *O) const { if (O) print(*O); }
void dump() const;
-
- static bool classof(const ARMConstantPoolValue *) { return true; }
};
inline raw_ostream &operator<<(raw_ostream &O, const ARMConstantPoolValue &V) {
const GlobalValue *getGV() const;
const BlockAddress *getBlockAddress() const;
- virtual int getExistingMachineCPValue(MachineConstantPool *CP,
- unsigned Alignment);
+ int getExistingMachineCPValue(MachineConstantPool *CP,
+ unsigned Alignment) override;
/// hasSameValue - Return true if this ARM constpool value can share the same
/// constantpool entry as another ARM constpool value.
- virtual bool hasSameValue(ARMConstantPoolValue *ACPV);
+ bool hasSameValue(ARMConstantPoolValue *ACPV) override;
- virtual void addSelectionDAGCSEId(FoldingSetNodeID &ID);
+ void addSelectionDAGCSEId(FoldingSetNodeID &ID) override;
- virtual void print(raw_ostream &O) const;
+ void print(raw_ostream &O) const override;
static bool classof(const ARMConstantPoolValue *APV) {
return APV->isGlobalValue() || APV->isBlockAddress() || APV->isLSDA();
}
- static bool classof(const ARMConstantPoolConstant *) { return true; }
+
+ bool equals(const ARMConstantPoolConstant *A) const {
+ return CVal == A->CVal && ARMConstantPoolValue::equals(A);
+ }
+};
+
+/// ARMConstantPoolSymbol - ARM-specific constantpool values for external
+/// symbols.
+class ARMConstantPoolSymbol : public ARMConstantPoolValue {
+ const std::string S; // ExtSymbol being loaded.
+
+ ARMConstantPoolSymbol(LLVMContext &C, const char *s, unsigned id,
+ unsigned char PCAdj, ARMCP::ARMCPModifier Modifier,
+ bool AddCurrentAddress);
+
+public:
+ static ARMConstantPoolSymbol *Create(LLVMContext &C, const char *s,
+ unsigned ID, unsigned char PCAdj);
+
+ const char *getSymbol() const { return S.c_str(); }
+
+ int getExistingMachineCPValue(MachineConstantPool *CP,
+ unsigned Alignment) override;
+
+ void addSelectionDAGCSEId(FoldingSetNodeID &ID) override;
+
+ /// hasSameValue - Return true if this ARM constpool value can share the same
+ /// constantpool entry as another ARM constpool value.
+ bool hasSameValue(ARMConstantPoolValue *ACPV) override;
+
+ void print(raw_ostream &O) const override;
+
+ static bool classof(const ARMConstantPoolValue *ACPV) {
+ return ACPV->isExtSymbol();
+ }
+
+ bool equals(const ARMConstantPoolSymbol *A) const {
+ return S == A->S && ARMConstantPoolValue::equals(A);
+ }
+};
+
+/// ARMConstantPoolMBB - ARM-specific constantpool value of a machine basic
+/// block.
+class ARMConstantPoolMBB : public ARMConstantPoolValue {
+ const MachineBasicBlock *MBB; // Machine basic block.
+
+ ARMConstantPoolMBB(LLVMContext &C, const MachineBasicBlock *mbb, unsigned id,
+ unsigned char PCAdj, ARMCP::ARMCPModifier Modifier,
+ bool AddCurrentAddress);
+
+public:
+ static ARMConstantPoolMBB *Create(LLVMContext &C,
+ const MachineBasicBlock *mbb,
+ unsigned ID, unsigned char PCAdj);
+
+ const MachineBasicBlock *getMBB() const { return MBB; }
+
+ int getExistingMachineCPValue(MachineConstantPool *CP,
+ unsigned Alignment) override;
+
+ void addSelectionDAGCSEId(FoldingSetNodeID &ID) override;
+
+ /// hasSameValue - Return true if this ARM constpool value can share the same
+ /// constantpool entry as another ARM constpool value.
+ bool hasSameValue(ARMConstantPoolValue *ACPV) override;
+
+ void print(raw_ostream &O) const override;
+
+ static bool classof(const ARMConstantPoolValue *ACPV) {
+ return ACPV->isMachineBasicBlock();
+ }
+
+ bool equals(const ARMConstantPoolMBB *A) const {
+ return MBB == A->MBB && ARMConstantPoolValue::equals(A);
+ }
};
} // End llvm namespace
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