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281 | @register_impls
class ArithFunctions(InterpreterFunctions):
@impl(arith.ConstantOp)
def run_constant(
self, interpreter: Interpreter, op: arith.ConstantOp, args: PythonValues
) -> PythonValues:
interpreter.interpreter_assert(
isinstance(op.value, IntegerAttr | FloatAttr),
f"arith.constant not implemented for {type(op.value)}",
)
value = cast(IntegerAttr, op.value)
return (value.value.data,)
@impl(arith.SubiOp)
def run_subi(self, interpreter: Interpreter, op: arith.SubiOp, args: PythonValues):
assert isa(op.result.type, builtin.IndexType | builtin.IntegerType)
lhs = to_signed(args[0], _int_bitwidth(interpreter, op.result.type))
rhs = to_signed(args[1], _int_bitwidth(interpreter, op.result.type))
return (to_signed(lhs - rhs, _int_bitwidth(interpreter, op.result.type)),)
@impl(arith.AddiOp)
def run_addi(self, interpreter: Interpreter, op: arith.AddiOp, args: PythonValues):
assert isa(op.result.type, builtin.IndexType | builtin.IntegerType)
lhs = to_signed(args[0], _int_bitwidth(interpreter, op.result.type))
rhs = to_signed(args[1], _int_bitwidth(interpreter, op.result.type))
return (to_signed(lhs + rhs, _int_bitwidth(interpreter, op.result.type)),)
@impl(arith.MuliOp)
def run_muli(self, interpreter: Interpreter, op: arith.MuliOp, args: PythonValues):
assert isa(op.result.type, builtin.IndexType | builtin.IntegerType)
lhs = to_signed(args[0], _int_bitwidth(interpreter, op.result.type))
rhs = to_signed(args[1], _int_bitwidth(interpreter, op.result.type))
return (to_signed(lhs * rhs, _int_bitwidth(interpreter, op.result.type)),)
@impl(arith.AndIOp)
def run_andi(self, interpreter: Interpreter, op: arith.AndIOp, args: PythonValues):
assert isa(op.result.type, builtin.IndexType | builtin.IntegerType)
lhs = to_signed(args[0], _int_bitwidth(interpreter, op.result.type))
rhs = to_signed(args[1], _int_bitwidth(interpreter, op.result.type))
return (to_signed(lhs & rhs, _int_bitwidth(interpreter, op.result.type)),)
@impl(arith.OrIOp)
def run_ori(self, interpreter: Interpreter, op: arith.OrIOp, args: PythonValues):
assert isa(op.result.type, builtin.IndexType | builtin.IntegerType)
lhs = to_signed(args[0], _int_bitwidth(interpreter, op.result.type))
rhs = to_signed(args[1], _int_bitwidth(interpreter, op.result.type))
return (to_signed(lhs | rhs, _int_bitwidth(interpreter, op.result.type)),)
@impl(arith.XOrIOp)
def run_xori(self, interpreter: Interpreter, op: arith.XOrIOp, args: PythonValues):
assert isa(op.result.type, builtin.IndexType | builtin.IntegerType)
lhs = to_signed(args[0], _int_bitwidth(interpreter, op.result.type))
rhs = to_signed(args[1], _int_bitwidth(interpreter, op.result.type))
return (to_signed(lhs ^ rhs, _int_bitwidth(interpreter, op.result.type)),)
@impl(arith.SubfOp)
def run_subf(self, interpreter: Interpreter, op: arith.SubfOp, args: PythonValues):
return (args[0] - args[1],)
@impl(arith.AddfOp)
def run_addf(self, interpreter: Interpreter, op: arith.AddfOp, args: PythonValues):
return (args[0] + args[1],)
@impl(arith.MulfOp)
def run_mulf(self, interpreter: Interpreter, op: arith.MulfOp, args: PythonValues):
return (args[0] * args[1],)
@impl(arith.MinimumfOp)
def run_minimumf(
self, interpreter: Interpreter, op: arith.MinimumfOp, args: PythonValues
):
if isnan(args[0]) or isnan(args[1]):
return (float("NaN"),)
if args[0] == 0 and args[1] == 0:
if copysign(1.0, args[0]) < 0 or copysign(1.0, args[1]) < 0:
return (-0.0,)
else:
return (0.0,)
return (min(args[0], args[1]),)
@impl(arith.MaximumfOp)
def run_maximumf(
self, interpreter: Interpreter, op: arith.MaximumfOp, args: PythonValues
):
if isnan(args[0]) or isnan(args[1]):
return (float("NaN"),)
if args[0] == 0 and args[1] == 0:
if copysign(1.0, args[0]) > 0 or copysign(1.0, args[1]) > 0:
return (0.0,)
else:
return (-0.0,)
return (max(args[0], args[1]),)
@impl(arith.CmpiOp)
def run_cmpi(self, interpreter: Interpreter, op: arith.CmpiOp, args: PythonValues):
match op.predicate.value.data:
case 0: # "eq"
return (args[0] == args[1],)
case 1: # "ne"
return (args[0] != args[1],)
case 2: # "slt"
return (args[0] < args[1],)
case 3: # "sle"
return (args[0] <= args[1],)
case 4: # "sgt"
return (args[0] > args[1],)
case 5: # "sge"
return (args[0] >= args[1],)
case 6: # "ult"
return (args[0] < args[1],)
case 7: # "ule"
return (args[0] <= args[1],)
case 8: # "ugt"
return (args[0] > args[1],)
case 9: # "uge"
return (args[0] >= args[1],)
case _:
raise InterpretationError(
f"arith.cmpi predicate {op.predicate} mot implemented yet."
)
@impl(arith.CmpfOp)
def run_cmpf(self, interpreter: Interpreter, op: arith.CmpfOp, args: PythonValues):
x = args[0]
y = args[1]
o = not isnan(x) and not isnan(y)
u = isnan(x) or isnan(y)
match op.predicate.value.data:
case 0:
return (False,)
case 1:
return ((x == y) and o,)
case 2:
return ((x > y) and o,)
case 3:
return ((x >= y) and o,)
case 4:
return ((x < y) and o,)
case 5:
return ((x <= y) and o,)
case 6:
return ((x != y) and o,)
case 7:
return (o,)
case 8:
return ((x == y) or u,)
case 9:
return ((x > y) or u,)
case 10:
return ((x >= y) or u,)
case 11:
return ((x < y) or u,)
case 12:
return ((x <= y) or u,)
case 13:
return ((x != y) or u,)
case 14:
return (u,)
case 15:
return (True,)
case _:
raise InterpretationError(
f"arith.cmpf predicate {op.predicate} mot implemented yet."
)
@impl(arith.ShLIOp)
def run_shlsi(self, interpreter: Interpreter, op: arith.ShLIOp, args: PythonValues):
lhs: int
rhs: int
(lhs, rhs) = args
assert rhs >= 0
return (lhs << rhs,)
@impl(arith.ShRSIOp)
def run_shrsi(
self, interpreter: Interpreter, op: arith.ShRSIOp, args: PythonValues
):
lhs: int
rhs: int
(lhs, rhs) = args
assert rhs >= 0
return (lhs >> rhs,)
@impl(arith.DivSIOp)
def run_divsi(
self, interpreter: Interpreter, op: arith.DivSIOp, args: PythonValues
):
lhs: int
rhs: int
(lhs, rhs) = args
assert rhs != 0
div = abs(lhs) // abs(rhs)
if (lhs > 0) != (rhs > 0):
div = -div
return (div,)
@impl(arith.RemSIOp)
def run_remsi(
self, interpreter: Interpreter, op: arith.RemSIOp, args: PythonValues
):
lhs: int
rhs: int
(lhs, rhs) = args
assert rhs != 0
div = abs(lhs) // abs(rhs)
if (lhs > 0) != (rhs > 0):
div = -div
return (lhs - div * rhs,)
@impl(arith.FloorDivSIOp)
def run_floordivsi(
self, interpreter: Interpreter, op: arith.FloorDivSIOp, args: PythonValues
):
lhs: int
rhs: int
(lhs, rhs) = args
assert rhs != 0
return (lhs // rhs,)
@impl(arith.IndexCastOp)
def run_indexcast(
self, interpreter: Interpreter, op: arith.IndexCastOp, args: PythonValues
):
assert len(args) == 1
result = args[0]
assert isa(op.input.type, builtin.IndexType | builtin.IntegerType)
input_bitwidth = _int_bitwidth(interpreter, op.input.type)
result_bitwidth = _int_bitwidth(interpreter, op.result.type)
if input_bitwidth > result_bitwidth:
result = _truncate(result, result_bitwidth)
elif input_bitwidth < result_bitwidth:
result = _sign_extend(result, input_bitwidth)
return (result,)
|