class MCAsmLayout;
class MCAssembler;
class MCContext;
+class MCFixup;
+class MCFragment;
class MCSection;
-class MCSectionData;
+class MCStreamer;
class MCSymbol;
class MCValue;
class raw_ostream;
class StringRef;
-typedef DenseMap<const MCSectionData*, uint64_t> SectionAddrMap;
+typedef DenseMap<const MCSection *, uint64_t> SectionAddrMap;
-/// MCExpr - Base class for the full range of assembler expressions which are
+/// \brief Base class for the full range of assembler expressions which are
/// needed for parsing.
class MCExpr {
public:
private:
ExprKind Kind;
- MCExpr(const MCExpr&) LLVM_DELETED_FUNCTION;
- void operator=(const MCExpr&) LLVM_DELETED_FUNCTION;
+ MCExpr(const MCExpr&) = delete;
+ void operator=(const MCExpr&) = delete;
- bool EvaluateAsAbsolute(int64_t &Res, const MCAssembler *Asm,
+ 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) {}
+ explicit MCExpr(ExprKind Kind) : Kind(Kind) {}
- bool EvaluateAsRelocatableImpl(MCValue &Res, const MCAssembler *Asm,
+ bool evaluateAsRelocatableImpl(MCValue &Res, const MCAssembler *Asm,
const MCAsmLayout *Layout,
- const SectionAddrMap *Addrs,
- bool InSet) const;
+ const MCFixup *Fixup,
+ const SectionAddrMap *Addrs, bool InSet) const;
+
public:
- /// @name Accessors
+ /// \name Accessors
/// @{
ExprKind getKind() const { return Kind; }
/// @}
- /// @name Utility Methods
+ /// \name Utility Methods
/// @{
- void print(raw_ostream &OS) const;
+ void print(raw_ostream &OS, const MCAsmInfo *MAI) const;
void dump() const;
/// @}
- /// @name Expression Evaluation
+ /// \name Expression Evaluation
/// @{
- /// EvaluateAsAbsolute - Try to evaluate the expression to an absolute value.
+ /// \brief Try to evaluate the expression to an absolute value.
///
- /// @param Res - The absolute value, if evaluation succeeds.
- /// @param Layout - The assembler layout object to use for evaluating symbol
+ /// \param Res - The absolute value, if evaluation succeeds.
+ /// \param Layout - The assembler layout object to use for evaluating symbol
/// values. If not given, then only non-symbolic expressions will be
/// evaluated.
- /// @result - True on success.
- bool EvaluateAsAbsolute(int64_t &Res, const MCAsmLayout &Layout,
+ /// \return - True on success.
+ 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;
+ bool evaluateAsAbsolute(int64_t &Res) const;
+ bool evaluateAsAbsolute(int64_t &Res, const MCAssembler &Asm) const;
+ bool evaluateAsAbsolute(int64_t &Res, const MCAsmLayout &Layout) const;
+
+ bool evaluateKnownAbsolute(int64_t &Res, const MCAsmLayout &Layout) const;
- /// EvaluateAsRelocatable - Try to evaluate the expression to a relocatable
- /// value, i.e. an expression of the fixed form (a - b + constant).
+ /// \brief Try to evaluate the expression to a relocatable value, i.e. an
+ /// expression of the fixed form (a - b + constant).
///
- /// @param Res - The relocatable value, if evaluation succeeds.
- /// @param Layout - The assembler layout object to use for evaluating values.
- /// @result - True on success.
- bool EvaluateAsRelocatable(MCValue &Res, const MCAsmLayout &Layout) const;
+ /// \param Res - The relocatable value, if evaluation succeeds.
+ /// \param Layout - The assembler layout object to use for evaluating values.
+ /// \param Fixup - The Fixup object if available.
+ /// \return - True on success.
+ bool evaluateAsRelocatable(MCValue &Res, const MCAsmLayout *Layout,
+ const MCFixup *Fixup) const;
+
+ /// \brief Try to evaluate the expression to the form (a - b + constant) where
+ /// neither a nor b are variables.
+ ///
+ /// This is a more aggressive variant of evaluateAsRelocatable. The intended
+ /// use is for when relocations are not available, like the .size directive.
+ bool evaluateAsValue(MCValue &Res, const MCAsmLayout &Layout) const;
- /// FindAssociatedSection - Find the "associated section" for this expression,
- /// which is currently defined as the absolute section for constants, or
+ /// \brief Find the "associated section" for this expression, which is
+ /// currently defined as the absolute section for constants, or
/// otherwise the section associated with the first defined symbol in the
/// expression.
- const MCSection *FindAssociatedSection() const;
+ MCFragment *findAssociatedFragment() const;
/// @}
};
inline raw_ostream &operator<<(raw_ostream &OS, const MCExpr &E) {
- E.print(OS);
+ E.print(OS, nullptr);
return OS;
}
-//// MCConstantExpr - Represent a constant integer expression.
+//// \brief Represent a constant integer expression.
class MCConstantExpr : public MCExpr {
int64_t Value;
- explicit MCConstantExpr(int64_t _Value)
- : MCExpr(MCExpr::Constant), Value(_Value) {}
+ explicit MCConstantExpr(int64_t Value)
+ : MCExpr(MCExpr::Constant), Value(Value) {}
public:
- /// @name Construction
+ /// \name Construction
/// @{
- static const MCConstantExpr *Create(int64_t Value, MCContext &Ctx);
+ static const MCConstantExpr *create(int64_t Value, MCContext &Ctx);
/// @}
- /// @name Accessors
+ /// \name Accessors
/// @{
int64_t getValue() const { return Value; }
}
};
-/// MCSymbolRefExpr - Represent a reference to a symbol from inside an
-/// expression.
+/// \brief Represent a reference to a symbol from inside an expression.
///
/// A symbol reference in an expression may be a use of a label, a use of an
/// assembler variable (defined constant), or constitute an implicit definition
/// of the symbol as external.
class MCSymbolRefExpr : public MCExpr {
public:
- enum VariantKind {
+ enum VariantKind : uint16_t {
VK_None,
VK_Invalid,
VK_TLSLDM,
VK_TPOFF,
VK_DTPOFF,
- VK_TLVP, // Mach-O thread local variable relocation
+ VK_TLVP, // Mach-O thread local variable relocations
+ VK_TLVPPAGE,
+ VK_TLVPPAGEOFF,
+ VK_PAGE,
+ VK_PAGEOFF,
+ VK_GOTPAGE,
+ VK_GOTPAGEOFF,
VK_SECREL,
+ VK_SIZE, // symbol@SIZE
+ VK_WEAKREF, // The link between the symbols in .weakref foo, bar
VK_ARM_NONE,
+ VK_ARM_GOT_PREL,
VK_ARM_TARGET1,
VK_ARM_TARGET2,
VK_ARM_PREL31,
+ VK_ARM_SBREL, // symbol(sbrel)
VK_ARM_TLSLDO, // symbol(tlsldo)
VK_ARM_TLSCALL, // symbol(tlscall)
+ VK_ARM_TLSDESC, // symbol(tlsdesc)
+ VK_ARM_TLSDESCSEQ,
VK_PPC_LO, // symbol@l
VK_PPC_HI, // symbol@h
VK_PPC_GOT_TLSLD_HI, // symbol@got@tlsld@h
VK_PPC_GOT_TLSLD_HA, // symbol@got@tlsld@ha
VK_PPC_TLSLD, // symbol@tlsld
+ VK_PPC_LOCAL, // symbol@local
VK_Mips_GPREL,
VK_Mips_GOT_CALL,
VK_Mips_GOT_LO16,
VK_Mips_CALL_HI16,
VK_Mips_CALL_LO16,
-
- VK_COFF_IMGREL32 // symbol@imgrel (image-relative)
+ VK_Mips_PCREL_HI16,
+ VK_Mips_PCREL_LO16,
+
+ VK_COFF_IMGREL32, // symbol@imgrel (image-relative)
+
+ VK_Hexagon_PCREL,
+ VK_Hexagon_LO16,
+ VK_Hexagon_HI16,
+ VK_Hexagon_GPREL,
+ VK_Hexagon_GD_GOT,
+ VK_Hexagon_LD_GOT,
+ VK_Hexagon_GD_PLT,
+ VK_Hexagon_LD_PLT,
+ VK_Hexagon_IE,
+ VK_Hexagon_IE_GOT,
+
+ VK_WebAssembly_FUNCTION, // Function table index, rather than virtual addr
+
+ VK_TPREL,
+ VK_DTPREL
};
private:
- /// The symbol being referenced.
- const MCSymbol *Symbol;
-
/// The symbol reference modifier.
const VariantKind Kind;
- /// MCAsmInfo that is used to print symbol variants correctly.
- const MCAsmInfo *MAI;
+ /// Specifies how the variant kind should be printed.
+ const unsigned UseParensForSymbolVariant : 1;
- explicit MCSymbolRefExpr(const MCSymbol *_Symbol, VariantKind _Kind,
- const MCAsmInfo *_MAI)
- : MCExpr(MCExpr::SymbolRef), Symbol(_Symbol), Kind(_Kind), MAI(_MAI) {
- assert(Symbol);
- assert(MAI);
- }
+ // FIXME: Remove this bit.
+ const unsigned HasSubsectionsViaSymbols : 1;
+
+ /// The symbol being referenced.
+ const MCSymbol *Symbol;
+
+ explicit MCSymbolRefExpr(const MCSymbol *Symbol, VariantKind Kind,
+ const MCAsmInfo *MAI);
public:
- /// @name Construction
+ /// \name Construction
/// @{
- static const MCSymbolRefExpr *Create(const MCSymbol *Symbol, MCContext &Ctx) {
- return MCSymbolRefExpr::Create(Symbol, VK_None, Ctx);
+ 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,
+ static const MCSymbolRefExpr *create(const MCSymbol *Symbol, VariantKind Kind,
MCContext &Ctx);
- static const MCSymbolRefExpr *Create(StringRef Name, VariantKind Kind,
+ static const MCSymbolRefExpr *create(StringRef Name, VariantKind Kind,
MCContext &Ctx);
/// @}
- /// @name Accessors
+ /// \name Accessors
/// @{
const MCSymbol &getSymbol() const { return *Symbol; }
- const MCAsmInfo &getMCAsmInfo() const { return *MAI; }
VariantKind getKind() const { return Kind; }
+ void printVariantKind(raw_ostream &OS) const;
+
+ bool hasSubsectionsViaSymbols() const { return HasSubsectionsViaSymbols; }
+
/// @}
- /// @name Static Utility Functions
+ /// \name Static Utility Functions
/// @{
static StringRef getVariantKindName(VariantKind Kind);
}
};
-/// MCUnaryExpr - Unary assembler expressions.
+/// \brief Unary assembler expressions.
class MCUnaryExpr : public MCExpr {
public:
enum Opcode {
Opcode Op;
const MCExpr *Expr;
- MCUnaryExpr(Opcode _Op, const MCExpr *_Expr)
- : MCExpr(MCExpr::Unary), Op(_Op), Expr(_Expr) {}
+ MCUnaryExpr(Opcode Op, const MCExpr *Expr)
+ : MCExpr(MCExpr::Unary), Op(Op), Expr(Expr) {}
public:
- /// @name Construction
+ /// \name Construction
/// @{
- static const MCUnaryExpr *Create(Opcode Op, const MCExpr *Expr,
+ 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 *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 *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 *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);
+ static const MCUnaryExpr *createPlus(const MCExpr *Expr, MCContext &Ctx) {
+ return create(Plus, Expr, Ctx);
}
/// @}
- /// @name Accessors
+ /// \name Accessors
/// @{
- /// getOpcode - Get the kind of this unary expression.
+ /// \brief Get the kind of this unary expression.
Opcode getOpcode() const { return Op; }
- /// getSubExpr - Get the child of this unary expression.
+ /// \brief Get the child of this unary expression.
const MCExpr *getSubExpr() const { return Expr; }
/// @}
}
};
-/// MCBinaryExpr - Binary assembler expressions.
+/// \brief Binary assembler expressions.
class MCBinaryExpr : public MCExpr {
public:
enum Opcode {
NE, ///< Inequality comparison.
Or, ///< Bitwise or.
Shl, ///< Shift left.
- Shr, ///< Shift right (arithmetic or logical, depending on target)
+ AShr, ///< Arithmetic shift right.
+ LShr, ///< Logical shift right.
Sub, ///< Subtraction.
Xor ///< Bitwise exclusive or.
};
Opcode Op;
const MCExpr *LHS, *RHS;
- MCBinaryExpr(Opcode _Op, const MCExpr *_LHS, const MCExpr *_RHS)
- : MCExpr(MCExpr::Binary), Op(_Op), LHS(_LHS), RHS(_RHS) {}
+ MCBinaryExpr(Opcode Op, const MCExpr *LHS, const MCExpr *RHS)
+ : MCExpr(MCExpr::Binary), Op(Op), LHS(LHS), RHS(RHS) {}
public:
- /// @name Construction
+ /// \name Construction
/// @{
- static const MCBinaryExpr *Create(Opcode Op, const MCExpr *LHS,
+ static const MCBinaryExpr *create(Opcode Op, const MCExpr *LHS,
const MCExpr *RHS, MCContext &Ctx);
- static const MCBinaryExpr *CreateAdd(const MCExpr *LHS, const MCExpr *RHS,
+ static const MCBinaryExpr *createAdd(const MCExpr *LHS, const MCExpr *RHS,
MCContext &Ctx) {
- return Create(Add, LHS, RHS, Ctx);
+ return create(Add, LHS, RHS, Ctx);
}
- static const MCBinaryExpr *CreateAnd(const MCExpr *LHS, const MCExpr *RHS,
+ static const MCBinaryExpr *createAnd(const MCExpr *LHS, const MCExpr *RHS,
MCContext &Ctx) {
- return Create(And, LHS, RHS, Ctx);
+ return create(And, LHS, RHS, Ctx);
}
- static const MCBinaryExpr *CreateDiv(const MCExpr *LHS, const MCExpr *RHS,
+ static const MCBinaryExpr *createDiv(const MCExpr *LHS, const MCExpr *RHS,
MCContext &Ctx) {
- return Create(Div, LHS, RHS, Ctx);
+ return create(Div, LHS, RHS, Ctx);
}
- static const MCBinaryExpr *CreateEQ(const MCExpr *LHS, const MCExpr *RHS,
+ static const MCBinaryExpr *createEQ(const MCExpr *LHS, const MCExpr *RHS,
MCContext &Ctx) {
- return Create(EQ, LHS, RHS, Ctx);
+ return create(EQ, LHS, RHS, Ctx);
}
- static const MCBinaryExpr *CreateGT(const MCExpr *LHS, const MCExpr *RHS,
+ static const MCBinaryExpr *createGT(const MCExpr *LHS, const MCExpr *RHS,
MCContext &Ctx) {
- return Create(GT, LHS, RHS, Ctx);
+ return create(GT, LHS, RHS, Ctx);
}
- static const MCBinaryExpr *CreateGTE(const MCExpr *LHS, const MCExpr *RHS,
+ static const MCBinaryExpr *createGTE(const MCExpr *LHS, const MCExpr *RHS,
MCContext &Ctx) {
- return Create(GTE, LHS, RHS, Ctx);
+ return create(GTE, LHS, RHS, Ctx);
}
- static const MCBinaryExpr *CreateLAnd(const MCExpr *LHS, const MCExpr *RHS,
+ static const MCBinaryExpr *createLAnd(const MCExpr *LHS, const MCExpr *RHS,
MCContext &Ctx) {
- return Create(LAnd, LHS, RHS, Ctx);
+ return create(LAnd, LHS, RHS, Ctx);
}
- static const MCBinaryExpr *CreateLOr(const MCExpr *LHS, const MCExpr *RHS,
+ static const MCBinaryExpr *createLOr(const MCExpr *LHS, const MCExpr *RHS,
MCContext &Ctx) {
- return Create(LOr, LHS, RHS, Ctx);
+ return create(LOr, LHS, RHS, Ctx);
}
- static const MCBinaryExpr *CreateLT(const MCExpr *LHS, const MCExpr *RHS,
+ static const MCBinaryExpr *createLT(const MCExpr *LHS, const MCExpr *RHS,
MCContext &Ctx) {
- return Create(LT, LHS, RHS, Ctx);
+ return create(LT, LHS, RHS, Ctx);
}
- static const MCBinaryExpr *CreateLTE(const MCExpr *LHS, const MCExpr *RHS,
+ static const MCBinaryExpr *createLTE(const MCExpr *LHS, const MCExpr *RHS,
MCContext &Ctx) {
- return Create(LTE, LHS, RHS, Ctx);
+ return create(LTE, LHS, RHS, Ctx);
}
- static const MCBinaryExpr *CreateMod(const MCExpr *LHS, const MCExpr *RHS,
+ static const MCBinaryExpr *createMod(const MCExpr *LHS, const MCExpr *RHS,
MCContext &Ctx) {
- return Create(Mod, LHS, RHS, Ctx);
+ return create(Mod, LHS, RHS, Ctx);
}
- static const MCBinaryExpr *CreateMul(const MCExpr *LHS, const MCExpr *RHS,
+ static const MCBinaryExpr *createMul(const MCExpr *LHS, const MCExpr *RHS,
MCContext &Ctx) {
- return Create(Mul, LHS, RHS, Ctx);
+ return create(Mul, LHS, RHS, Ctx);
}
- static const MCBinaryExpr *CreateNE(const MCExpr *LHS, const MCExpr *RHS,
+ static const MCBinaryExpr *createNE(const MCExpr *LHS, const MCExpr *RHS,
MCContext &Ctx) {
- return Create(NE, LHS, RHS, Ctx);
+ return create(NE, LHS, RHS, Ctx);
}
- static const MCBinaryExpr *CreateOr(const MCExpr *LHS, const MCExpr *RHS,
+ static const MCBinaryExpr *createOr(const MCExpr *LHS, const MCExpr *RHS,
MCContext &Ctx) {
- return Create(Or, LHS, RHS, Ctx);
+ return create(Or, LHS, RHS, Ctx);
}
- static const MCBinaryExpr *CreateShl(const MCExpr *LHS, const MCExpr *RHS,
+ static const MCBinaryExpr *createShl(const MCExpr *LHS, const MCExpr *RHS,
MCContext &Ctx) {
- return Create(Shl, LHS, RHS, Ctx);
+ return create(Shl, LHS, RHS, Ctx);
}
- static const MCBinaryExpr *CreateShr(const MCExpr *LHS, const MCExpr *RHS,
+ static const MCBinaryExpr *createAShr(const MCExpr *LHS, const MCExpr *RHS,
MCContext &Ctx) {
- return Create(Shr, LHS, RHS, Ctx);
+ return create(AShr, LHS, RHS, Ctx);
}
- static const MCBinaryExpr *CreateSub(const MCExpr *LHS, const MCExpr *RHS,
+ static const MCBinaryExpr *createLShr(const MCExpr *LHS, const MCExpr *RHS,
MCContext &Ctx) {
- return Create(Sub, LHS, RHS, Ctx);
+ return create(LShr, LHS, RHS, Ctx);
}
- static const MCBinaryExpr *CreateXor(const MCExpr *LHS, const MCExpr *RHS,
+ static const MCBinaryExpr *createSub(const MCExpr *LHS, const MCExpr *RHS,
MCContext &Ctx) {
- return Create(Xor, LHS, RHS, 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);
}
/// @}
- /// @name Accessors
+ /// \name Accessors
/// @{
- /// getOpcode - Get the kind of this binary expression.
+ /// \brief Get the kind of this binary expression.
Opcode getOpcode() const { return Op; }
- /// getLHS - Get the left-hand side expression of the binary operator.
+ /// \brief Get the left-hand side expression of the binary operator.
const MCExpr *getLHS() const { return LHS; }
- /// getRHS - Get the right-hand side expression of the binary operator.
+ /// \brief Get the right-hand side expression of the binary operator.
const MCExpr *getRHS() const { return RHS; }
/// @}
}
};
-/// MCTargetExpr - This is an extension point for target-specific MCExpr
-/// subclasses to implement.
+/// \brief This is an extension point for target-specific MCExpr subclasses to
+/// implement.
///
/// NOTE: All subclasses are required to have trivial destructors because
/// MCExprs are bump pointer allocated and not destructed.
MCTargetExpr() : MCExpr(Target) {}
virtual ~MCTargetExpr() {}
public:
-
- virtual void PrintImpl(raw_ostream &OS) const = 0;
- virtual bool EvaluateAsRelocatableImpl(MCValue &Res,
- const MCAsmLayout *Layout) const = 0;
- virtual void AddValueSymbols(MCAssembler *) const = 0;
- virtual const MCSection *FindAssociatedSection() const = 0;
+ virtual void printImpl(raw_ostream &OS, const MCAsmInfo *MAI) const = 0;
+ virtual bool evaluateAsRelocatableImpl(MCValue &Res,
+ const MCAsmLayout *Layout,
+ const MCFixup *Fixup) const = 0;
+ virtual void visitUsedExpr(MCStreamer& Streamer) const = 0;
+ virtual MCFragment *findAssociatedFragment() const = 0;
virtual void fixELFSymbolsInTLSFixups(MCAssembler &) const = 0;
projects / oota-llvm.git / blobdiff