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class Error(Exception): 'Base class for all exceptions thrown by Alive.\n ' pass
class Type(object): __slots__ = () def __ne__(self, other): return (not (self == other))
class Comparable(object): def __eq__(self, other): return self._cmp(operator.eq, other) def __ge__(self, other): return self._cmp(operator.ge, other) def __gt__(self, other): return self._cmp(operator.gt, other) def __le__(self, other): return self._cmp(operator.le, other) def __lt__(self, other): return self._cmp(operator.lt, other) def __ne__(self, other): return self._cmp(operator.ne, other)
class IntType(Type, Comparable): __slots__ = ('width',) def __init__(self, width): self.width = width def __repr__(self): return 'IntType({0!r})'.format(self.width) def __str__(self): return ('i' + str(self.width)) def __hash__(self): return (hash(type(self)) ^ hash(self.width)) def _cmp(self, op, other): if isinstance(other, int): return op(self.width, other) if isinstance(other, IntType): return op(self.width, other.width) return NotImplemented
class PtrType(Type): __slots__ = () def __eq__(self, other): return (type(self) is type(other)) def __ne__(self, other): return (not (self == other)) def __hash__(self): return (hash(PtrType) * 2) def __repr__(self): return 'PtrType()'
class FloatType(Type, Comparable): __slots__ = () def __repr__(self): return (type(self).__name__ + '()') def __hash__(self): return (hash(type(self)) * 2) def _cmp(self, op, other): if isinstance(other, int): return op(self.frac, other) if isinstance(other, FloatType): return op(self.frac, other.frac) return NotImplemented
class HalfType(FloatType): __slots__ = () exp = 5 frac = 11 def __str__(self): return 'half'
class SingleType(FloatType): __slots__ = () exp = 8 frac = 24 def __str__(self): return 'float'
class DoubleType(FloatType): __slots__ = () exp = 11 frac = 53 def __str__(self): return 'double'
class FP128Type(FloatType): __slots__ = () exp = 15 frac = 113 def __str__(self): return 'fp128'
class X86FP80Type(FloatType): __slots__ = () exp = 15 frac = 64 def __str__(self): return 'x86_fp80'
class MetaNode(type): 'Automatically generate a superclass table for Node classes' def __new__(cls, name, bases, dict): if ('__slots__' not in dict): dict['__slots__'] = () return super(MetaNode, cls).__new__(cls, name, bases, dict) def __init__(cls, name, bases, dict): if hasattr(cls, 'code'): assert (cls.code not in cls.codes) cls.codes[cls.code] = cls if ('__slots__' in dict): cls._allslots = (getattr(cls, '_allslots', ()) + tuple(dict['__slots__'])) return super(MetaNode, cls).__init__(name, bases, dict)
class Node(pretty.PrettyRepr): __metaclass__ = MetaNode def pretty(self): args = (getattr(self, s) for s in self._allslots) return pretty.pfun(type(self).__name__, args) def args(self): return tuple((getattr(self, s) for s in self._allslots)) def copy(self, **kws): args = tuple(((kws[s] if (s in kws) else getattr(self, s)) for s in self._allslots)) return type(self)(*args) def type_constraints(self, tcs): raise NotImplementedError((type(self).__name__ + ' should override type_constraints'))
class Value(Node): pass
class Input(Value): __slots__ = ('name',) def __init__(self, name): self.name = name def args(self): return () def type_constraints(self, tcs): tcs.first_class(self)
class Instruction(Value): pass
class BinaryOperator(Instruction): __slots__ = ('x', 'y', 'ty', 'flags', 'name') codes = {} def __init__(self, x, y, ty=None, flags=(), name=''): self.ty = ty self.x = x self.y = y self.flags = tuple(flags) self.name = name def args(self): return (self.x, self.y)
class IntBinaryOperator(BinaryOperator): def type_constraints(self, tcs): tcs.integer(self) tcs.specific(self, self.ty) tcs.eq_types(self, self.x, self.y)
class WrappingBinaryOperator(IntBinaryOperator): pass
class InexactBinaryOperator(IntBinaryOperator): pass
class AddInst(WrappingBinaryOperator): code = 'add'
class SubInst(WrappingBinaryOperator): code = 'sub'
class MulInst(WrappingBinaryOperator): code = 'mul'
class SDivInst(InexactBinaryOperator): code = 'sdiv'
class UDivInst(InexactBinaryOperator): code = 'udiv'
class SRemInst(IntBinaryOperator): code = 'srem'
class URemInst(IntBinaryOperator): code = 'urem'
class ShlInst(WrappingBinaryOperator): code = 'shl'
class AShrInst(InexactBinaryOperator): code = 'ashr'
class LShrInst(InexactBinaryOperator): code = 'lshr'
class AndInst(IntBinaryOperator): code = 'and'
class OrInst(IntBinaryOperator): code = 'or'
class XorInst(IntBinaryOperator): code = 'xor'
class FastMathInst(Instruction): pass
class FloatBinaryOperator(BinaryOperator, FastMathInst): def type_constraints(self, tcs): tcs.float(self) tcs.specific(self, self.ty) tcs.eq_types(self, self.x, self.y)
class FAddInst(FloatBinaryOperator): code = 'fadd'
class FSubInst(FloatBinaryOperator): code = 'fsub'
class FMulInst(FloatBinaryOperator): code = 'fmul'
class FDivInst(FloatBinaryOperator): code = 'fdiv'
class FRemInst(FloatBinaryOperator): code = 'frem'
class ConversionInst(Instruction): __slots__ = ('arg', 'src_ty', 'ty', 'name') codes = {} def __init__(self, arg, src_ty=None, dest_ty=None, name=''): self.src_ty = src_ty self.arg = arg self.ty = dest_ty self.name = name def args(self): return (self.arg,)
class BitcastInst(ConversionInst): code = 'bitcast' def type_constraints(self, tcs): tcs.specific(self, self.ty) tcs.specific(self.arg, self.src_ty) tcs.width_equal(self.arg, self)
class InttoptrInst(ConversionInst): code = 'inttoptr' def type_constraints(self, tcs): tcs.integer(self.arg) tcs.pointer(self) tcs.specific(self.arg, self.src_ty) tcs.specific(self, self.ty)
class PtrtointInst(ConversionInst): code = 'ptrtoint' def type_constraints(self, tcs): tcs.pointer(self.arg) tcs.integer(self) tcs.specific(self.arg, self.src_ty) tcs.specific(self, self.ty)
class SExtInst(ConversionInst): code = 'sext' def type_constraints(self, tcs): tcs.integer(self) tcs.integer(self.arg) tcs.specific(self, self.ty) tcs.specific(self.arg, self.src_ty) tcs.width_order(self.arg, self)
class ZExtInst(ConversionInst): code = 'zext' def type_constraints(self, tcs): tcs.integer(self) tcs.integer(self.arg) tcs.specific(self, self.ty) tcs.specific(self.arg, self.src_ty) tcs.width_order(self.arg, self)
class TruncInst(ConversionInst): code = 'trunc' def type_constraints(self, tcs): tcs.integer(self) tcs.integer(self.arg) tcs.specific(self, self.ty) tcs.specific(self.arg, self.src_ty) tcs.width_order(self, self.arg)
class ZExtOrTruncInst(ConversionInst): code = 'ZExtOrTrunc' def type_constraints(self, tcs): tcs.integer(self) tcs.integer(self.arg) tcs.specific(self, self.ty) tcs.specific(self.arg, self.src_ty)
class FPtoSIInst(ConversionInst): code = 'fptosi' def type_constraints(self, tcs): tcs.integer(self) tcs.float(self.arg) tcs.specific(self, self.ty) tcs.specific(self.arg, self.src_ty)
class FPtoUIInst(ConversionInst): code = 'fptoui' def type_constraints(self, tcs): tcs.integer(self) tcs.float(self.arg) tcs.specific(self, self.ty) tcs.specific(self.arg, self.src_ty)
class SItoFPInst(ConversionInst): code = 'sitofp' def type_constraints(self, tcs): tcs.float(self) tcs.integer(self.arg) tcs.specific(self, self.ty) tcs.specific(self.arg, self.src_ty)
class UItoFPInst(ConversionInst): code = 'uitofp' def type_constraints(self, tcs): tcs.float(self) tcs.integer(self.arg) tcs.specific(self, self.ty) tcs.specific(self.arg, self.src_ty)
class FPTruncInst(ConversionInst): code = 'fptrunc' def type_constraints(self, tcs): tcs.float(self) tcs.float(self.arg) tcs.specific(self, self.ty) tcs.specific(self.arg, self.src_ty) tcs.width_order(self, self.arg)
class FPExtInst(ConversionInst): code = 'fpext' def type_constraints(self, tcs): tcs.float(self) tcs.float(self.arg) tcs.specific(self, self.ty) tcs.specific(self.arg, self.src_ty) tcs.width_order(self.arg, self)
class IcmpInst(Instruction): __slots__ = ('pred', 'x', 'y', 'ty', 'name') def __init__(self, pred, arg1, arg2, ty=None, name=''): self.pred = pred self.ty = ty self.x = arg1 self.y = arg2 self.name = name def args(self): return (self.x, self.y) def type_constraints(self, tcs): tcs.bool(self) tcs.int_ptr_vec(self.x) tcs.specific(self.x, self.ty) tcs.eq_types(self.x, self.y)
class FcmpInst(FastMathInst): __slots__ = ('pred', 'x', 'y', 'ty', 'flags', 'name') def __init__(self, pred, arg1, arg2, ty=None, flags=(), name=''): self.pred = pred self.ty = ty self.flags = flags self.x = arg1 self.y = arg2 self.name = name def args(self): return (self.x, self.y) def type_constraints(self, tcs): tcs.bool(self) tcs.float(self.x) tcs.specific(self.x, self.ty) tcs.eq_types(self.x, self.y)
class SelectInst(Instruction): __slots__ = ('sel', 'arg1', 'arg2', 'ty1', 'ty2', 'name') def __init__(self, sel, arg1, arg2, ty1=None, ty2=None, name=''): self.sel = sel self.ty1 = ty1 self.arg1 = arg1 self.ty2 = ty2 self.arg2 = arg2 self.name = name def args(self): return (self.sel, self.arg1, self.arg2) def type_constraints(self, tcs): tcs.bool(self.sel) tcs.first_class(self) tcs.specific(self.arg1, self.ty1) tcs.specific(self.arg2, self.ty2) tcs.eq_types(self, self.arg1, self.arg2)
class FreezeInst(Instruction): __slots__ = ('x', 'ty', 'name') def __init__(self, x, ty=None, name=''): self.x = x self.ty = ty self.name = name def args(self): return (self.x,) def type_constraints(self, tcs): tcs.first_class(self) tcs.eq_types(self, self.x)
class Constant(Value): pass
class Symbol(Input, Constant): 'Symbolic constants.\n ' def type_constraints(self, tcs): tcs.number(self)
class Literal(Constant): __slots__ = ('val',) def __init__(self, val): self.val = val def args(self): return () def type_constraints(self, tcs): tcs.number(self) x = self.val bl = (x.bit_length() if (x >= 0) else (((- x) - 1).bit_length() + 1)) if (bl > 0): tcs.width_order((bl - 1), self)
class FLiteral(Constant): def type_constraints(self, tcs): tcs.float(self)
class FLiteralNaN(FLiteral): val = 'nan'
class FLiteralPlusInf(FLiteral): val = 'inf'
class FLiteralMinusInf(FLiteral): val = '-inf'
class FLiteralMinusZero(FLiteral): val = '-0.0'
class FLiteralVal(FLiteral): __slots__ = ('val',) def __init__(self, val): self.val = val def __repr__(self): return (('FLiteral(' + repr(self.val)) + ')') def args(self): return ()
class UndefValue(Constant): __slots__ = ('ty',) def __init__(self, ty=None): self.ty = ty def args(self): return () def type_constraints(self, tcs): tcs.first_class(self) tcs.specific(self, self.ty)
class PoisonValue(Constant): def type_constraints(self, tcs): tcs.first_class(self)
class BinaryCnxp(Constant): __slots__ = ('x', 'y') codes = {} def __init__(self, x, y): self.x = x self.y = y def type_constraints(self, tcs): tcs.integer(self) tcs.eq_types(self, self.x, self.y)
class NumBinaryCnxp(BinaryCnxp): def type_constraints(self, tcs): tcs.number(self) tcs.eq_types(self, self.x, self.y)
class AddCnxp(NumBinaryCnxp): code = '+'
class SubCnxp(NumBinaryCnxp): code = '-'
class MulCnxp(NumBinaryCnxp): code = '*'
class SDivCnxp(NumBinaryCnxp): code = '/'
class UDivCnxp(BinaryCnxp): code = '/u'
class SRemCnxp(NumBinaryCnxp): code = '%'
class URemCnxp(BinaryCnxp): code = '%u'
class ShlCnxp(BinaryCnxp): code = '<<'
class AShrCnxp(BinaryCnxp): code = '>>'
class LShrCnxp(BinaryCnxp): code = 'u>>'
class AndCnxp(BinaryCnxp): code = '&'
class OrCnxp(BinaryCnxp): code = '|'
class XorCnxp(BinaryCnxp): code = '^'
class UnaryCnxp(Constant): __slots__ = ('x',) codes = {} def __init__(self, x): self.x = x
class NegCnxp(UnaryCnxp): code = '-' def type_constraints(self, tcs): tcs.number(self) tcs.eq_types(self, self.x)
class NotCnxp(UnaryCnxp): code = '~' def type_constraints(self, tcs): tcs.integer(self) tcs.eq_types(self, self.x)
class FunCnxp(Constant): __slots__ = ('_args',) codes = {} @classmethod def check_args(cls, args): if (len(args) != len(cls.sig)): raise BadArgumentCount(len(cls.sig), len(args)) for i in xrange(len(args)): if (not isinstance(args[i], cls.sig[i])): raise BadArgumentKind(i, cls.sig[i]) def __init__(self, *args): self.check_args(args) self._args = args def pretty(self): return pretty.pfun(type(self).__name__, self._args) def args(self): return self._args
class AbsCnxp(FunCnxp): sig = (Constant,) code = 'abs' def type_constraints(self, tcs): tcs.number(self) tcs.eq_types(self, self._args[0])
class SignBitsCnxp(FunCnxp): sig = (Value,) code = 'ComputeNumSignBits' def type_constraints(self, tcs): tcs.integer(self) tcs.integer(self._args[0])
class OneBitsCnxp(FunCnxp): sig = (Value,) code = 'computeKnownOneBits' def type_constraints(self, tcs): tcs.integer(self) tcs.eq_types(self, self._args[0])
class ZeroBitsCnxp(FunCnxp): sig = (Value,) code = 'computeKnownZeroBits' def type_constraints(self, tcs): tcs.integer(self) tcs.eq_types(self, self._args[0])
class LeadingZerosCnxp(FunCnxp): sig = (Constant,) code = 'countLeadingZeros' def type_constraints(self, tcs): tcs.integer(self) tcs.integer(self._args[0])
class TrailingZerosCnxp(FunCnxp): sig = (Constant,) code = 'countTrailingZeros' def type_constraints(self, tcs): tcs.integer(self) tcs.integer(self._args[0])
class FPMantissaWidthCnxp(FunCnxp): sig = (Value,) code = 'fpMantissaWidth' def type_constraints(self, tcs): tcs.integer(self) tcs.float(self._args[0])
class LShrFunCnxp(FunCnxp): sig = (Constant, Constant) code = 'lshr' def type_constraints(self, tcs): tcs.integer(self) tcs.eq_types(self, *self._args)
class Log2Cnxp(FunCnxp): sig = (Constant,) code = 'log2' def type_constraints(self, tcs): tcs.integer(self) tcs.integer(self._args[0])
class SMaxCnxp(FunCnxp): sig = (Constant, Constant) code = 'max' def type_constraints(self, tcs): tcs.integer(self) tcs.eq_types(self, *self._args)
class SMinCnxp(FunCnxp): sig = (Constant, Constant) code = 'min' def type_constraints(self, tcs): tcs.integer(self) tcs.eq_types(self, *self._args)
class SExtCnxp(FunCnxp): sig = (Constant,) code = 'sext' def type_constraints(self, tcs): tcs.integer(self) tcs.integer(self._args[0]) tcs.width_order(self._args[0], self)