#ifndef LLVM_MC_MCEXPR_H
#define LLVM_MC_MCEXPR_H
#include "llvm/ADT/DenseMap.h"
#include "llvm/Support/Casting.h"
#include "llvm/Support/DataTypes.h"
namespace llvm {
class MCAsmInfo;
class MCAsmLayout;
class MCAssembler;
class MCContext;
class MCFixup;
class MCSection;
class MCSectionData;
class MCStreamer;
class MCSymbol;
class MCValue;
class raw_ostream;
class StringRef;
typedef DenseMap<const MCSectionData*, uint64_t> SectionAddrMap;
class MCExpr {
public:
enum ExprKind {
Binary, Constant, SymbolRef, Unary, Target };
private:
ExprKind Kind;
MCExpr(const MCExpr&) LLVM_DELETED_FUNCTION;
void operator=(const MCExpr&) LLVM_DELETED_FUNCTION;
bool EvaluateAsAbsolute(int64_t &Res, const MCAssembler *Asm,
const MCAsmLayout *Layout,
const SectionAddrMap *Addrs) const;
bool evaluateAsAbsolute(int64_t &Res, const MCAssembler *Asm,
const MCAsmLayout *Layout,
const SectionAddrMap *Addrs, bool InSet) const;
protected:
explicit MCExpr(ExprKind _Kind) : Kind(_Kind) {}
bool EvaluateAsRelocatableImpl(MCValue &Res, const MCAssembler *Asm,
const MCAsmLayout *Layout,
const MCFixup *Fixup,
const SectionAddrMap *Addrs, bool InSet,
bool ForceVarExpansion) const;
public:
ExprKind getKind() const { return Kind; }
void print(raw_ostream &OS) const;
void dump() const;
bool EvaluateAsAbsolute(int64_t &Res, const MCAsmLayout &Layout,
const SectionAddrMap &Addrs) const;
bool EvaluateAsAbsolute(int64_t &Res) const;
bool EvaluateAsAbsolute(int64_t &Res, const MCAssembler &Asm) const;
bool EvaluateAsAbsolute(int64_t &Res, const MCAsmLayout &Layout) const;
int64_t evaluateKnownAbsolute(const MCAsmLayout &Layout) const;
bool EvaluateAsRelocatable(MCValue &Res, const MCAsmLayout *Layout,
const MCFixup *Fixup) const;
bool EvaluateAsValue(MCValue &Res, const MCAsmLayout *Layout,
const MCFixup *Fixup) const;
const MCSection *FindAssociatedSection() const;
};
inline raw_ostream &operator<<(raw_ostream &OS, const MCExpr &E) {
E.print(OS);
return OS;
}
class MCConstantExpr : public MCExpr {
int64_t Value;
explicit MCConstantExpr(int64_t _Value)
: MCExpr(MCExpr::Constant), Value(_Value) {}
public:
static const MCConstantExpr *Create(int64_t Value, MCContext &Ctx);
int64_t getValue() const { return Value; }
static bool classof(const MCExpr *E) {
return E->getKind() == MCExpr::Constant;
}
};
class MCSymbolRefExpr : public MCExpr {
public:
enum VariantKind {
VK_None,
VK_Invalid,
VK_GOT,
VK_GOTOFF,
VK_GOTPCREL,
VK_GOTTPOFF,
VK_INDNTPOFF,
VK_NTPOFF,
VK_GOTNTPOFF,
VK_PLT,
VK_TLSGD,
VK_TLSLD,
VK_TLSLDM,
VK_TPOFF,
VK_DTPOFF,
VK_TLVP, VK_TLVPPAGE,
VK_TLVPPAGEOFF,
VK_PAGE,
VK_PAGEOFF,
VK_GOTPAGE,
VK_GOTPAGEOFF,
VK_SECREL,
VK_WEAKREF,
VK_ARM_NONE,
VK_ARM_TARGET1,
VK_ARM_TARGET2,
VK_ARM_PREL31,
VK_ARM_SBREL, VK_ARM_TLSLDO, VK_ARM_TLSCALL, VK_ARM_TLSDESC, VK_ARM_TLSDESCSEQ,
VK_PPC_LO, VK_PPC_HI, VK_PPC_HA, VK_PPC_HIGHER, VK_PPC_HIGHERA, VK_PPC_HIGHEST, VK_PPC_HIGHESTA, VK_PPC_GOT_LO, VK_PPC_GOT_HI, VK_PPC_GOT_HA, VK_PPC_TOCBASE, VK_PPC_TOC, VK_PPC_TOC_LO, VK_PPC_TOC_HI, VK_PPC_TOC_HA, VK_PPC_DTPMOD, VK_PPC_TPREL, VK_PPC_TPREL_LO, VK_PPC_TPREL_HI, VK_PPC_TPREL_HA, VK_PPC_TPREL_HIGHER, VK_PPC_TPREL_HIGHERA, VK_PPC_TPREL_HIGHEST, VK_PPC_TPREL_HIGHESTA, VK_PPC_DTPREL, VK_PPC_DTPREL_LO, VK_PPC_DTPREL_HI, VK_PPC_DTPREL_HA, VK_PPC_DTPREL_HIGHER, VK_PPC_DTPREL_HIGHERA, VK_PPC_DTPREL_HIGHEST, VK_PPC_DTPREL_HIGHESTA, VK_PPC_GOT_TPREL, VK_PPC_GOT_TPREL_LO, VK_PPC_GOT_TPREL_HI, VK_PPC_GOT_TPREL_HA, VK_PPC_GOT_DTPREL, VK_PPC_GOT_DTPREL_LO, VK_PPC_GOT_DTPREL_HI, VK_PPC_GOT_DTPREL_HA, VK_PPC_TLS, VK_PPC_GOT_TLSGD, VK_PPC_GOT_TLSGD_LO, VK_PPC_GOT_TLSGD_HI, VK_PPC_GOT_TLSGD_HA, VK_PPC_TLSGD, VK_PPC_GOT_TLSLD, VK_PPC_GOT_TLSLD_LO, VK_PPC_GOT_TLSLD_HI, VK_PPC_GOT_TLSLD_HA, VK_PPC_TLSLD, VK_PPC_LOCAL,
VK_Mips_GPREL,
VK_Mips_GOT_CALL,
VK_Mips_GOT16,
VK_Mips_GOT,
VK_Mips_ABS_HI,
VK_Mips_ABS_LO,
VK_Mips_TLSGD,
VK_Mips_TLSLDM,
VK_Mips_DTPREL_HI,
VK_Mips_DTPREL_LO,
VK_Mips_GOTTPREL,
VK_Mips_TPREL_HI,
VK_Mips_TPREL_LO,
VK_Mips_GPOFF_HI,
VK_Mips_GPOFF_LO,
VK_Mips_GOT_DISP,
VK_Mips_GOT_PAGE,
VK_Mips_GOT_OFST,
VK_Mips_HIGHER,
VK_Mips_HIGHEST,
VK_Mips_GOT_HI16,
VK_Mips_GOT_LO16,
VK_Mips_CALL_HI16,
VK_Mips_CALL_LO16,
VK_Mips_PCREL_HI16,
VK_Mips_PCREL_LO16,
VK_COFF_IMGREL32 };
private:
const unsigned Kind : 16;
const unsigned UseParensForSymbolVariant : 1;
const unsigned HasSubsectionsViaSymbols : 1;
const MCSymbol *Symbol;
explicit MCSymbolRefExpr(const MCSymbol *Symbol, VariantKind Kind,
const MCAsmInfo *MAI);
public:
static const MCSymbolRefExpr *Create(const MCSymbol *Symbol, MCContext &Ctx) {
return MCSymbolRefExpr::Create(Symbol, VK_None, Ctx);
}
static const MCSymbolRefExpr *Create(const MCSymbol *Symbol, VariantKind Kind,
MCContext &Ctx);
static const MCSymbolRefExpr *Create(StringRef Name, VariantKind Kind,
MCContext &Ctx);
const MCSymbol &getSymbol() const { return *Symbol; }
VariantKind getKind() const { return static_cast<VariantKind>(Kind); }
void printVariantKind(raw_ostream &OS) const;
bool hasSubsectionsViaSymbols() const { return HasSubsectionsViaSymbols; }
static StringRef getVariantKindName(VariantKind Kind);
static VariantKind getVariantKindForName(StringRef Name);
static bool classof(const MCExpr *E) {
return E->getKind() == MCExpr::SymbolRef;
}
};
class MCUnaryExpr : public MCExpr {
public:
enum Opcode {
LNot, Minus, Not, Plus };
private:
Opcode Op;
const MCExpr *Expr;
MCUnaryExpr(Opcode _Op, const MCExpr *_Expr)
: MCExpr(MCExpr::Unary), Op(_Op), Expr(_Expr) {}
public:
static const MCUnaryExpr *Create(Opcode Op, const MCExpr *Expr,
MCContext &Ctx);
static const MCUnaryExpr *CreateLNot(const MCExpr *Expr, MCContext &Ctx) {
return Create(LNot, Expr, Ctx);
}
static const MCUnaryExpr *CreateMinus(const MCExpr *Expr, MCContext &Ctx) {
return Create(Minus, Expr, Ctx);
}
static const MCUnaryExpr *CreateNot(const MCExpr *Expr, MCContext &Ctx) {
return Create(Not, Expr, Ctx);
}
static const MCUnaryExpr *CreatePlus(const MCExpr *Expr, MCContext &Ctx) {
return Create(Plus, Expr, Ctx);
}
Opcode getOpcode() const { return Op; }
const MCExpr *getSubExpr() const { return Expr; }
static bool classof(const MCExpr *E) {
return E->getKind() == MCExpr::Unary;
}
};
class MCBinaryExpr : public MCExpr {
public:
enum Opcode {
Add, And, Div, EQ, GT, GTE, LAnd, LOr, LT, LTE, Mod, Mul, NE, Or, Shl, AShr, LShr, Sub, Xor };
private:
Opcode Op;
const MCExpr *LHS, *RHS;
MCBinaryExpr(Opcode _Op, const MCExpr *_LHS, const MCExpr *_RHS)
: MCExpr(MCExpr::Binary), Op(_Op), LHS(_LHS), RHS(_RHS) {}
public:
static const MCBinaryExpr *Create(Opcode Op, const MCExpr *LHS,
const MCExpr *RHS, MCContext &Ctx);
static const MCBinaryExpr *CreateAdd(const MCExpr *LHS, const MCExpr *RHS,
MCContext &Ctx) {
return Create(Add, LHS, RHS, Ctx);
}
static const MCBinaryExpr *CreateAnd(const MCExpr *LHS, const MCExpr *RHS,
MCContext &Ctx) {
return Create(And, LHS, RHS, Ctx);
}
static const MCBinaryExpr *CreateDiv(const MCExpr *LHS, const MCExpr *RHS,
MCContext &Ctx) {
return Create(Div, LHS, RHS, Ctx);
}
static const MCBinaryExpr *CreateEQ(const MCExpr *LHS, const MCExpr *RHS,
MCContext &Ctx) {
return Create(EQ, LHS, RHS, Ctx);
}
static const MCBinaryExpr *CreateGT(const MCExpr *LHS, const MCExpr *RHS,
MCContext &Ctx) {
return Create(GT, LHS, RHS, Ctx);
}
static const MCBinaryExpr *CreateGTE(const MCExpr *LHS, const MCExpr *RHS,
MCContext &Ctx) {
return Create(GTE, LHS, RHS, Ctx);
}
static const MCBinaryExpr *CreateLAnd(const MCExpr *LHS, const MCExpr *RHS,
MCContext &Ctx) {
return Create(LAnd, LHS, RHS, Ctx);
}
static const MCBinaryExpr *CreateLOr(const MCExpr *LHS, const MCExpr *RHS,
MCContext &Ctx) {
return Create(LOr, LHS, RHS, Ctx);
}
static const MCBinaryExpr *CreateLT(const MCExpr *LHS, const MCExpr *RHS,
MCContext &Ctx) {
return Create(LT, LHS, RHS, Ctx);
}
static const MCBinaryExpr *CreateLTE(const MCExpr *LHS, const MCExpr *RHS,
MCContext &Ctx) {
return Create(LTE, LHS, RHS, Ctx);
}
static const MCBinaryExpr *CreateMod(const MCExpr *LHS, const MCExpr *RHS,
MCContext &Ctx) {
return Create(Mod, LHS, RHS, Ctx);
}
static const MCBinaryExpr *CreateMul(const MCExpr *LHS, const MCExpr *RHS,
MCContext &Ctx) {
return Create(Mul, LHS, RHS, Ctx);
}
static const MCBinaryExpr *CreateNE(const MCExpr *LHS, const MCExpr *RHS,
MCContext &Ctx) {
return Create(NE, LHS, RHS, Ctx);
}
static const MCBinaryExpr *CreateOr(const MCExpr *LHS, const MCExpr *RHS,
MCContext &Ctx) {
return Create(Or, LHS, RHS, Ctx);
}
static const MCBinaryExpr *CreateShl(const MCExpr *LHS, const MCExpr *RHS,
MCContext &Ctx) {
return Create(Shl, LHS, RHS, Ctx);
}
static const MCBinaryExpr *CreateAShr(const MCExpr *LHS, const MCExpr *RHS,
MCContext &Ctx) {
return Create(AShr, LHS, RHS, Ctx);
}
static const MCBinaryExpr *CreateLShr(const MCExpr *LHS, const MCExpr *RHS,
MCContext &Ctx) {
return Create(LShr, LHS, RHS, Ctx);
}
static const MCBinaryExpr *CreateSub(const MCExpr *LHS, const MCExpr *RHS,
MCContext &Ctx) {
return Create(Sub, LHS, RHS, Ctx);
}
static const MCBinaryExpr *CreateXor(const MCExpr *LHS, const MCExpr *RHS,
MCContext &Ctx) {
return Create(Xor, LHS, RHS, Ctx);
}
Opcode getOpcode() const { return Op; }
const MCExpr *getLHS() const { return LHS; }
const MCExpr *getRHS() const { return RHS; }
static bool classof(const MCExpr *E) {
return E->getKind() == MCExpr::Binary;
}
};
class MCTargetExpr : public MCExpr {
virtual void anchor();
protected:
MCTargetExpr() : MCExpr(Target) {}
virtual ~MCTargetExpr() {}
public:
virtual void PrintImpl(raw_ostream &OS) const = 0;
virtual bool EvaluateAsRelocatableImpl(MCValue &Res,
const MCAsmLayout *Layout,
const MCFixup *Fixup) const = 0;
virtual void visitUsedExpr(MCStreamer& Streamer) const = 0;
virtual const MCSection *FindAssociatedSection() const = 0;
virtual void fixELFSymbolsInTLSFixups(MCAssembler &) const = 0;
static bool classof(const MCExpr *E) {
return E->getKind() == MCExpr::Target;
}
};
}
#endif