6502/llvm-6502
1
0
Fork 0
mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2025-08-04 06:26:28 +00:00
Code Issues Projects Releases Wiki Activity

llvm-mc: Switch MCExpr construction to using static member functions, and taking the MCContext (which now owns all MCExprs).

Browse Source 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80569 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Daniel Dunbar
2009-08-31 08:07:22 +00:00
parent 869a5e7d66
commit 9643ac5514
4 changed files with 218 additions and 62 deletions
Download Patch File Download Diff File Expand all files Collapse all files

206
include/llvm/MC/MCExpr.h
View File

@@ -19,7 +19,7 @@ class MCSymbol;
class MCValue;
/// MCExpr - Base class for the full range of assembler expressions which are
/// needed for parsing.
/// needed for parsing.
class MCExpr {
public:
enum ExprKind {
@@ -28,18 +28,26 @@ public:
SymbolRef, ///< References to labels and assigned expressions.
Unary ///< Unary expressions.
};
private:
ExprKind Kind;
MCExpr(const MCExpr&); // DO NOT IMPLEMENT
void operator=(const MCExpr&); // DO NOT IMPLEMENT
protected:
MCExpr(ExprKind _Kind) : Kind(_Kind) {}
public:
virtual ~MCExpr();
/// @name Accessors
/// @{
ExprKind getKind() const { return Kind; }
/// @}
/// @name Expression Evaluation
/// @{
/// EvaluateAsAbsolute - Try to evaluate the expression to an absolute value.
///
/// @param Res - The absolute value, if evaluation succeeds.
@@ -53,6 +61,8 @@ public:
/// @result - True on success.
bool EvaluateAsRelocatable(MCContext &Ctx, MCValue &Res) const;
/// @}
static bool classof(const MCExpr *) { return true; }
};
@@ -60,14 +70,25 @@ public:
class MCConstantExpr : public MCExpr {
int64_t Value;
public:
MCConstantExpr(int64_t _Value)
MCConstantExpr(int64_t _Value)
: MCExpr(MCExpr::Constant), Value(_Value) {}
public:
/// @name Construction
/// @{
static const MCConstantExpr *Create(int64_t Value, MCContext &Ctx);
/// @}
/// @name Accessors
/// @{
int64_t getValue() const { return Value; }
static bool classof(const MCExpr *E) {
return E->getKind() == MCExpr::Constant;
/// @}
static bool classof(const MCExpr *E) {
return E->getKind() == MCExpr::Constant;
}
static bool classof(const MCConstantExpr *) { return true; }
};
@@ -79,16 +100,27 @@ public:
/// assembler variable (defined constant), or constitute an implicit definition
/// of the symbol as external.
class MCSymbolRefExpr : public MCExpr {
MCSymbol *Symbol;
const MCSymbol *Symbol;
MCSymbolRefExpr(const MCSymbol *_Symbol)
: MCExpr(MCExpr::SymbolRef), Symbol(_Symbol) {}
public:
MCSymbolRefExpr(MCSymbol *_Symbol)
: MCExpr(MCExpr::SymbolRef), Symbol(_Symbol) {}
MCSymbol *getSymbol() const { return Symbol; }
/// @name Construction
/// @{
static bool classof(const MCExpr *E) {
return E->getKind() == MCExpr::SymbolRef;
static const MCSymbolRefExpr *Create(const MCSymbol *Symbol, MCContext &Ctx);
/// @}
/// @name Accessors
/// @{
const MCSymbol &getSymbol() const { return *Symbol; }
/// @}
static bool classof(const MCExpr *E) {
return E->getKind() == MCExpr::SymbolRef;
}
static bool classof(const MCSymbolRefExpr *) { return true; }
};
@@ -105,21 +137,44 @@ public:
private:
Opcode Op;
MCExpr *Expr;
const MCExpr *Expr;
MCUnaryExpr(Opcode _Op, const MCExpr *_Expr)
: MCExpr(MCExpr::Unary), Op(_Op), Expr(_Expr) {}
public:
MCUnaryExpr(Opcode _Op, MCExpr *_Expr)
: MCExpr(MCExpr::Unary), Op(_Op), Expr(_Expr) {}
~MCUnaryExpr() {
delete Expr;
/// @name Construction
/// @{
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);
}
/// @}
/// @name Accessors
/// @{
/// getOpcode - Get the kind of this unary expression.
Opcode getOpcode() const { return Op; }
MCExpr *getSubExpr() const { return Expr; }
/// getSubExpr - Get the child of this unary expression.
const MCExpr *getSubExpr() const { return Expr; }
static bool classof(const MCExpr *E) {
return E->getKind() == MCExpr::Unary;
/// @}
static bool classof(const MCExpr *E) {
return E->getKind() == MCExpr::Unary;
}
static bool classof(const MCUnaryExpr *) { return true; }
};
@@ -150,26 +205,107 @@ public:
private:
Opcode Op;
MCExpr *LHS, *RHS;
const MCExpr *LHS, *RHS;
MCBinaryExpr(Opcode _Op, const MCExpr *_LHS, const MCExpr *_RHS)
: MCExpr(MCExpr::Binary), Op(_Op), LHS(_LHS), RHS(_RHS) {}
public:
MCBinaryExpr(Opcode _Op, MCExpr *_LHS, MCExpr *_RHS)
: MCExpr(MCExpr::Binary), Op(_Op), LHS(_LHS), RHS(_RHS) {}
~MCBinaryExpr() {
delete LHS;
delete RHS;
/// @name Construction
/// @{
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 *CreateShr(const MCExpr *LHS, const MCExpr *RHS,
MCContext &Ctx) {
return Create(Shr, 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);
}
/// @}
/// @name Accessors
/// @{
/// getOpcode - Get the kind of this binary expression.
Opcode getOpcode() const { return Op; }
/// getLHS - Get the left-hand side expression of the binary operator.
MCExpr *getLHS() const { return LHS; }
const MCExpr *getLHS() const { return LHS; }
/// getRHS - Get the right-hand side expression of the binary operator.
MCExpr *getRHS() const { return RHS; }
const MCExpr *getRHS() const { return RHS; }
static bool classof(const MCExpr *E) {
return E->getKind() == MCExpr::Binary;
/// @}
static bool classof(const MCExpr *E) {
return E->getKind() == MCExpr::Binary;
}
static bool classof(const MCBinaryExpr *) { return true; }
};