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114 lines
4.4 KiB
114 lines
4.4 KiB
from enum import auto, IntEnum, Enum
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# wrapper around IntEnum that preserves Enum.__str__ and makes auto() unique across all FastEnum subclasses
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class FastEnum(IntEnum):
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def __str__(self): return Enum.__str__(self)
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@staticmethod
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def _generate_next_value_(_, __, ___, last_values): return 1 + max([0, *last_values, *[max(c) for c in FastEnum.__subclasses__()]])
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# the order of these Ops controls the order of the toposort
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class Ops(FastEnum):
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# uops that aren't rendered
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NOOP = auto(); SINK = auto(); UNIQUE = auto(); DEVICE = auto(); KERNEL = auto(); PRECAST = auto(); REWRITE_ERROR = auto() # noqa: E702
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# track children
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CHILD = auto()
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# buffer ops
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COPY = auto(); BUFFER = auto(); BUFFER_VIEW = auto(); MSELECT = auto(); MSTACK = auto() # noqa: E702
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# ops that adjust the behavior of the scheduler
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CONTIGUOUS = auto(); CONTIGUOUS_BACKWARD = auto(); DETACH = auto(); FUSE = auto() # noqa: E702
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# blocks in linearizer (only used there)
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BLOCK = auto(); BLOCKSTART = auto(); BLOCKEND = auto(); BLOCKFINAL = auto() # noqa: E702
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# movement ops! these only exist in the tensor graph
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RESHAPE = auto(); PERMUTE = auto(); EXPAND = auto(); PAD = auto(); SHRINK = auto(); FLIP = auto() # noqa: E702
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MULTI = auto() # MULTI is really a movement op
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# view is what all movement ops become
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VIEW = auto()
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# TODO: remove VALID with the VIEW(CONST(DEVICE)) refactor
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VALID = auto()
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# TODO: unify these ops into the levels of the memory hierarchy. depends on ASSIGN is STORE
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DEFINE_GLOBAL = auto(); DEFINE_LOCAL = auto(); DEFINE_REG = auto() # noqa: E702
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# this is for symbolic shapes
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DEFINE_VAR = auto(); BIND = auto() # noqa: E702
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# this is a RANGE for GPU dimensions, similar to symbolic shapes but not exactly
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SPECIAL = auto()
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# reduce
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REDUCE_AXIS = auto(); REDUCE = auto(); ALLREDUCE = auto() # noqa: E702
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# optimization helper ops
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UNROLL = auto(); CONTRACT = auto(); GEP = auto(); VECTORIZE = auto(); CAT = auto(); PTRCAT = auto() # noqa: E702
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# UnaryOps
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CAST = auto(); BITCAST = auto(); EXP2 = auto(); LOG2 = auto(); SIN = auto(); SQRT = auto(); RECIP = auto(); NEG = auto(); TRUNC = auto() # noqa: E702
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# load/store before math
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LOAD = auto(); STORE = auto() # noqa: E702
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ASSIGN = auto() # TODO: ASSIGN is STORE, remove ASSIGN
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# tensor core math op, not elementwise
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WMMA = auto()
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# INDEX is a BinaryOp similar to ADD, but it operates on pointers
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INDEX = auto()
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# BinaryOps
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ADD = auto(); MUL = auto(); SHL = auto(); SHR = auto(); IDIV = auto(); MAX = auto(); MOD = auto() # noqa: E702
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CMPLT = auto(); CMPNE = auto(); CMPEQ = auto() # noqa: E702
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XOR = auto(); OR = auto(); AND = auto() # noqa: E702
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THREEFRY = auto(); SUB = auto(); FDIV = auto(); POW = auto() # noqa: E702
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# TernaryOps
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WHERE = auto(); MULACC = auto() # noqa: E702
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# control flow ops
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BARRIER = auto(); RANGE = auto(); IF = auto(); ENDRANGE = auto(); ENDIF = auto() # noqa: E702
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# consts. VCONST is a vectorized const
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VCONST = auto(); CONST = auto() # noqa: E702
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# CUSTOM/CUSTOMI are used to output strings into codegen. the I makes the string inline
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CUSTOM = auto(); CUSTOMI = auto() # noqa: E702
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class GroupOp:
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Unary = {Ops.EXP2, Ops.LOG2, Ops.SIN, Ops.SQRT, Ops.RECIP, Ops.NEG, Ops.TRUNC}
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Binary = {Ops.ADD, Ops.MUL, Ops.IDIV, Ops.MAX, Ops.MOD, Ops.CMPLT, Ops.CMPNE, Ops.CMPEQ,
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Ops.XOR, Ops.SHL, Ops.SHR, Ops.OR, Ops.AND, Ops.THREEFRY, Ops.SUB, Ops.FDIV, Ops.POW}
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Ternary = {Ops.WHERE, Ops.MULACC}
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ALU = set.union(Unary, Binary, Ternary)
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# TODO: is BITCAST always Elementwise if it's shape changing?
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Elementwise = set.union(ALU, {Ops.CAST, Ops.BITCAST})
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Defines = {Ops.DEFINE_GLOBAL, Ops.DEFINE_LOCAL, Ops.DEFINE_REG}
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Irreducible = {Ops.CONST, Ops.DEFINE_VAR, Ops.SPECIAL, Ops.RANGE}
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Movement = {Ops.RESHAPE, Ops.EXPAND, Ops.PERMUTE, Ops.PAD, Ops.SHRINK, Ops.FLIP}
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Buffer = {Ops.LOAD, Ops.STORE, Ops.VALID, Ops.CONST, Ops.DEFINE_VAR}
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Block = {Ops.BLOCK, Ops.BLOCKEND, Ops.BLOCKSTART}
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# BinaryOps that can be flipped
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Commutative = {Ops.ADD, Ops.MUL, Ops.MAX, Ops.CMPNE, Ops.CMPEQ, Ops.XOR, Ops.AND, Ops.OR}
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# BinaryOps where f(f(a,b),c) = f(a,f(b,c))
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Associative = {Ops.ADD, Ops.MUL, Ops.AND, Ops.OR, Ops.MAX}
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# BinaryOps that satisfy f(x,x)=x see https://en.wikipedia.org/wiki/Idempotence
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Idempotent = {Ops.OR, Ops.AND, Ops.MAX}
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# do not preserve f(0) = 0
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UnsafePad = {Ops.RECIP, Ops.LOG2, Ops.EXP2, Ops.IDIV, Ops.POW}
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Meta = {Ops.COPY, Ops.BUFFER_VIEW}
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All = set(Ops)
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