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# RUN: %PYTHON %s | FileCheck %s
from functools import partialmethod
from mlir.ir import *
import mlir.dialects.arith as arith
import mlir.dialects.func as func
from array import array
def run(f):
print("\nTEST:", f.__name__)
f()
# CHECK-LABEL: TEST: testConstantOp
@run
def testConstantOps():
with Context() as ctx, Location.unknown():
module = Module.create()
with InsertionPoint(module.body):
arith.ConstantOp(value=42.42, result=F32Type.get())
# CHECK: %cst = arith.constant 4.242000e+01 : f32
print(module)
# CHECK-LABEL: TEST: testFastMathFlags
@run
def testFastMathFlags():
with Context() as ctx, Location.unknown():
module = Module.create()
with InsertionPoint(module.body):
a = arith.ConstantOp(value=42.42, result=F32Type.get())
r = arith.AddFOp(
a, a, fastmath=arith.FastMathFlags.nnan | arith.FastMathFlags.ninf
)
# CHECK: %0 = arith.addf %cst, %cst fastmath<nnan,ninf> : f32
print(r)
# CHECK-LABEL: TEST: testArithValue
@run
def testArithValue():
def _binary_op(lhs, rhs, op: str) -> "ArithValue":
op = op.capitalize()
if arith._is_float_type(lhs.type) and arith._is_float_type(rhs.type):
op += "F"
elif arith._is_integer_like_type(lhs.type) and arith._is_integer_like_type(
lhs.type
):
op += "I"
else:
raise NotImplementedError(f"Unsupported '{op}' operands: {lhs}, {rhs}")
op = getattr(arith, f"{op}Op")
return op(lhs, rhs).result
@register_value_caster(F16Type.static_typeid)
@register_value_caster(F32Type.static_typeid)
@register_value_caster(F64Type.static_typeid)
@register_value_caster(IntegerType.static_typeid)
class ArithValue(Value):
def __init__(self, v):
super().__init__(v)
__add__ = partialmethod(_binary_op, op="add")
__sub__ = partialmethod(_binary_op, op="sub")
__mul__ = partialmethod(_binary_op, op="mul")
def __str__(self):
return super().__str__().replace(Value.__name__, ArithValue.__name__)
with Context() as ctx, Location.unknown():
module = Module.create()
f16_t = F16Type.get()
f32_t = F32Type.get()
f64_t = F64Type.get()
with InsertionPoint(module.body):
a = arith.constant(f16_t, 42.42)
# CHECK: ArithValue(%cst = arith.constant 4.240
print(a)
b = a + a
# CHECK: ArithValue(%0 = arith.addf %cst, %cst : f16)
print(b)
a = arith.constant(f32_t, 42.42)
b = a - a
# CHECK: ArithValue(%1 = arith.subf %cst_0, %cst_0 : f32)
print(b)
a = arith.constant(f64_t, 42.42)
b = a * a
# CHECK: ArithValue(%2 = arith.mulf %cst_1, %cst_1 : f64)
print(b)
# CHECK-LABEL: TEST: testArrayConstantConstruction
@run
def testArrayConstantConstruction():
with Context(), Location.unknown():
module = Module.create()
with InsertionPoint(module.body):
i32_array = array("i", [1, 2, 3, 4])
i32 = IntegerType.get_signless(32)
vec_i32 = VectorType.get([2, 2], i32)
arith.constant(vec_i32, i32_array)
arith.ConstantOp(vec_i32, DenseIntElementsAttr.get(i32_array, type=vec_i32))
# "q" is the equivalent of `long long` in C and requires at least
# 64 bit width integers on both Linux and Windows.
i64_array = array("q", [5, 6, 7, 8])
i64 = IntegerType.get_signless(64)
vec_i64 = VectorType.get([1, 4], i64)
arith.constant(vec_i64, i64_array)
arith.ConstantOp(vec_i64, DenseIntElementsAttr.get(i64_array, type=vec_i64))
f32_array = array("f", [1.0, 2.0, 3.0, 4.0])
f32 = F32Type.get()
vec_f32 = VectorType.get([4, 1], f32)
arith.constant(vec_f32, f32_array)
arith.ConstantOp(vec_f32, DenseFPElementsAttr.get(f32_array, type=vec_f32))
f64_array = array("d", [1.0, 2.0, 3.0, 4.0])
f64 = F64Type.get()
vec_f64 = VectorType.get([2, 1, 2], f64)
arith.constant(vec_f64, f64_array)
arith.ConstantOp(vec_f64, DenseFPElementsAttr.get(f64_array, type=vec_f64))
# CHECK-COUNT-2: arith.constant dense<[{{\[}}1, 2], [3, 4]]> : vector<2x2xi32>
# CHECK-COUNT-2: arith.constant dense<[{{\[}}5, 6, 7, 8]]> : vector<1x4xi64>
# CHECK-COUNT-2: arith.constant dense<[{{\[}}1.000000e+00], [2.000000e+00], [3.000000e+00], [4.000000e+00]]> : vector<4x1xf32>
# CHECK-COUNT-2: arith.constant dense<[{{\[}}[1.000000e+00, 2.000000e+00]], [{{\[}}3.000000e+00, 4.000000e+00]]]> : vector<2x1x2xf64>
print(module)
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