-//===- ARMConstantPoolValue.h - ARM constantpool value ----------*- C++ -*-===//
+//===-- ARMConstantPoolValue.h - ARM constantpool value ---------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
#define LLVM_TARGET_ARM_CONSTANTPOOLVALUE_H
#include "llvm/CodeGen/MachineConstantPool.h"
+#include "llvm/Support/Casting.h"
#include "llvm/Support/ErrorHandling.h"
#include <cstddef>
namespace llvm {
-class Constant;
class BlockAddress;
+class Constant;
class GlobalValue;
class LLVMContext;
+class MachineBasicBlock;
namespace ARMCP {
enum ARMCPKind {
CPValue,
CPExtSymbol,
CPBlockAddress,
- CPLSDA
+ CPLSDA,
+ CPMachineBasicBlock
};
enum ARMCPModifier {
/// 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 Constant *CVal; // Constant 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.
ARMCP::ARMCPModifier Modifier; // GV modifier i.e. (&GV(modifier)-(LPIC+8))
bool AddCurrentAddress;
-public:
- ARMConstantPoolValue(const Constant *cval, 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 GlobalValue *GV, ARMCP::ARMCPModifier Modifier);
- ARMConstantPoolValue();
- ~ARMConstantPoolValue();
+protected:
+ ARMConstantPoolValue(Type *Ty, unsigned id, ARMCP::ARMCPKind Kind,
+ unsigned char PCAdj, ARMCP::ARMCPModifier Modifier,
+ bool AddCurrentAddress);
- const GlobalValue *getGV() const;
- const char *getSymbol() const { return S; }
- const BlockAddress *getBlockAddress() const;
- ARMCP::ARMCPModifier getModifier() const { return Modifier; }
- const char *getModifierText() const {
- switch (Modifier) {
- default: llvm_unreachable("Unknown modifier!");
- // FIXME: Are these case sensitive? It'd be nice to lower-case all the
- // strings if that's legal.
- case ARMCP::no_modifier: return "none";
- case ARMCP::TLSGD: return "tlsgd";
- case ARMCP::GOT: return "GOT";
- case ARMCP::GOTOFF: return "GOTOFF";
- case ARMCP::GOTTPOFF: return "gottpoff";
- case ARMCP::TPOFF: return "tpoff";
+ 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:
+ virtual ~ARMConstantPoolValue();
+
+ ARMCP::ARMCPModifier getModifier() const { return Modifier; }
+ const char *getModifierText() const;
bool hasModifier() const { return Modifier != ARMCP::no_modifier; }
+
bool mustAddCurrentAddress() const { return AddCurrentAddress; }
+
unsigned getLabelId() const { return LabelId; }
unsigned char getPCAdjustment() const { return PCAdjust; }
+
bool isGlobalValue() const { return Kind == ARMCP::CPValue; }
bool isExtSymbol() const { return Kind == ARMCP::CPExtSymbol; }
- bool isBlockAddress() { return Kind == ARMCP::CPBlockAddress; }
- bool isLSDA() { return Kind == ARMCP::CPLSDA; }
+ bool isBlockAddress() const { return Kind == ARMCP::CPBlockAddress; }
+ bool isLSDA() const { return Kind == ARMCP::CPLSDA; }
+ bool isMachineBasicBlock() const{ return Kind == ARMCP::CPMachineBasicBlock; }
- virtual unsigned getRelocationInfo() const { return 2; }
+ unsigned getRelocationInfo() const override { return 2; }
- virtual int getExistingMachineCPValue(MachineConstantPool *CP,
- unsigned Alignment);
+ int getExistingMachineCPValue(MachineConstantPool *CP,
+ unsigned Alignment) override;
- 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.
- bool hasSameValue(ARMConstantPoolValue *ACPV);
+ /// 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 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 print(raw_ostream &O) const;
void dump() const;
};
return O;
}
+/// ARMConstantPoolConstant - ARM-specific constant pool values for Constants,
+/// Functions, and BlockAddresses.
+class ARMConstantPoolConstant : public ARMConstantPoolValue {
+ const Constant *CVal; // Constant being loaded.
+
+ ARMConstantPoolConstant(const Constant *C,
+ unsigned ID,
+ ARMCP::ARMCPKind Kind,
+ unsigned char PCAdj,
+ ARMCP::ARMCPModifier Modifier,
+ bool AddCurrentAddress);
+ ARMConstantPoolConstant(Type *Ty, const Constant *C,
+ unsigned ID,
+ ARMCP::ARMCPKind Kind,
+ unsigned char PCAdj,
+ ARMCP::ARMCPModifier Modifier,
+ bool AddCurrentAddress);
+
+public:
+ static ARMConstantPoolConstant *Create(const Constant *C, unsigned ID);
+ static ARMConstantPoolConstant *Create(const GlobalValue *GV,
+ ARMCP::ARMCPModifier Modifier);
+ static ARMConstantPoolConstant *Create(const Constant *C, unsigned ID,
+ ARMCP::ARMCPKind Kind,
+ unsigned char PCAdj);
+ static ARMConstantPoolConstant *Create(const Constant *C, unsigned ID,
+ ARMCP::ARMCPKind Kind,
+ unsigned char PCAdj,
+ ARMCP::ARMCPModifier Modifier,
+ bool AddCurrentAddress);
+
+ const GlobalValue *getGV() const;
+ const BlockAddress *getBlockAddress() const;
+
+ 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.
+ bool hasSameValue(ARMConstantPoolValue *ACPV) override;
+
+ void addSelectionDAGCSEId(FoldingSetNodeID &ID) override;
+
+ void print(raw_ostream &O) const override;
+ static bool classof(const ARMConstantPoolValue *APV) {
+ return APV->isGlobalValue() || APV->isBlockAddress() || APV->isLSDA();
+ }
+
+ 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
#endif