Files
apache--tvm/tests/python/relax/test_transform_legalize_ops_qdq.py
T
wehub-resource-sync 26446540fa
Lint / lint (push) Waiting to run
CI / MacOS (push) Waiting to run
CI / Windows (push) Waiting to run
chore: import upstream snapshot with attribution
2026-07-13 13:36:25 +08:00

572 lines
21 KiB
Python

# Licensed to the Apache Software Foundation (ASF) under one
# or more contributor license agreements. See the NOTICE file
# distributed with this work for additional information
# regarding copyright ownership. The ASF licenses this file
# to you under the Apache License, Version 2.0 (the
# "License"); you may not use this file except in compliance
# with the License. You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
# KIND, either express or implied. See the License for the
# specific language governing permissions and limitations
# under the License.
import tvm
import tvm.testing
from tvm.relax.transform import LegalizeOps
from tvm.script import relax as R
from tvm.script import tirx as T
def test_quantize_fp32_to_int8():
@tvm.script.ir_module
class Quantize:
@R.function
def main(
data: R.Tensor((2, 4), "float32"),
scale: R.Tensor((2,), "float32"),
zp: R.Tensor((2,), "int8"),
) -> R.Tensor((2, 4), "int8"):
out = R.quantize(data, scale, zp, axis=0, out_dtype="int8")
return out
@tvm.script.ir_module
class Expected:
@T.prim_func(private=True, s_tir=True)
def quantize(
A: T.Buffer((T.int64(2), T.int64(4)), "float32"),
B: T.Buffer((T.int64(2),), "float32"),
C: T.Buffer((T.int64(2),), "int8"),
quantized: T.Buffer((T.int64(2), T.int64(4)), "int8"),
):
T.func_attr({"tirx.noalias": True})
# with T.sblock("root"):
for i0, i1 in T.grid(T.int64(2), T.int64(4)):
with T.sblock("quantized"):
v_i0, v_i1 = T.axis.remap("SS", [i0, i1])
T.reads(A[v_i0, v_i1], B[v_i0], C[v_i0])
T.writes(quantized[v_i0, v_i1])
quantized[v_i0, v_i1] = T.Cast(
"int8",
T.max(
T.min(
T.round(A[v_i0, v_i1] / B[v_i0]) + T.Cast("float32", C[v_i0]),
T.float32(127),
),
T.float32(-128),
),
)
@R.function
def main(
data: R.Tensor((2, 4), dtype="float32"),
scale: R.Tensor((2,), dtype="float32"),
zp: R.Tensor((2,), dtype="int8"),
) -> R.Tensor((2, 4), dtype="int8"):
out = R.call_tir(
Expected.quantize, (data, scale, zp), out_ty=R.Tensor((2, 4), dtype="int8")
)
return out
mod = LegalizeOps()(Quantize)
tvm.ir.assert_structural_equal(mod, Expected)
def test_quantize_fp16_to_uint8():
@tvm.script.ir_module
class Quantize:
@R.function
def main(
data: R.Tensor((2, 4), "float16"),
scale: R.Tensor((2,), "float16"),
zp: R.Tensor((2,), "int8"),
) -> R.Tensor((2, 4), "uint8"):
out = R.quantize(data, scale, zp, axis=0, out_dtype="uint8")
return out
@tvm.script.ir_module
class Expected:
@T.prim_func(private=True, s_tir=True)
def quantize(
A: T.Buffer((T.int64(2), T.int64(4)), "float16"),
B: T.Buffer((T.int64(2),), "float16"),
C: T.Buffer((T.int64(2),), "int8"),
quantized: T.Buffer((T.int64(2), T.int64(4)), "uint8"),
):
T.func_attr({"tirx.noalias": True})
# with T.sblock("root"):
for i0, i1 in T.grid(T.int64(2), T.int64(4)):
with T.sblock("quantized"):
v_i0, v_i1 = T.axis.remap("SS", [i0, i1])
T.reads(A[v_i0, v_i1], B[v_i0], C[v_i0])
T.writes(quantized[v_i0, v_i1])
quantized[v_i0, v_i1] = T.Cast(
"uint8",
T.max(
T.min(
T.round(A[v_i0, v_i1] / B[v_i0]) + T.Cast("float16", C[v_i0]),
T.float16(255),
),
T.float16(0),
),
)
@R.function
def main(
data: R.Tensor((2, 4), dtype="float16"),
scale: R.Tensor((2,), dtype="float16"),
zp: R.Tensor((2,), dtype="int8"),
) -> R.Tensor((2, 4), dtype="uint8"):
out = R.call_tir(
Expected.quantize, (data, scale, zp), out_ty=R.Tensor((2, 4), dtype="uint8")
)
return out
mod = LegalizeOps()(Quantize)
tvm.ir.assert_structural_equal(mod, Expected)
def test_quantize_fp32_to_int8_symbolic():
@tvm.script.ir_module
class Quantize:
@R.function
def main(
data: R.Tensor((4, "n"), "float32"),
scale: R.Tensor(("n",), "float32"),
zp: R.Tensor(("n",), "int8"),
) -> R.Tensor((4, "n"), "int8"):
out = R.quantize(data, scale, zp, axis=-1, out_dtype="int8")
return out
@tvm.script.ir_module
class Expected:
@T.prim_func(private=True, s_tir=True)
def quantize(var_A: T.handle, var_B: T.handle, var_C: T.handle, var_quantized: T.handle):
T.func_attr({"tirx.noalias": True})
n = T.int64()
A = T.match_buffer(var_A, (T.int64(4), n))
B = T.match_buffer(var_B, (n,))
C = T.match_buffer(var_C, (n,), "int8")
quantized = T.match_buffer(var_quantized, (T.int64(4), n), "int8")
# with T.sblock("root"):
for i0, i1 in T.grid(T.int64(4), n):
with T.sblock("quantized"):
v_i0, v_i1 = T.axis.remap("SS", [i0, i1])
T.reads(A[v_i0, v_i1], B[v_i1], C[v_i1])
T.writes(quantized[v_i0, v_i1])
quantized[v_i0, v_i1] = T.Cast(
"int8",
T.max(
T.min(
T.round(A[v_i0, v_i1] / B[v_i1]) + T.Cast("float32", C[v_i1]),
T.float32(127),
),
T.float32(-128),
),
)
@R.function
def main(
data: R.Tensor((4, "n"), dtype="float32"),
scale: R.Tensor(("n",), dtype="float32"),
zp: R.Tensor(("n",), dtype="int8"),
) -> R.Tensor((4, "n"), dtype="int8"):
n = T.int64()
out = R.call_tir(Expected.quantize, (data, scale, zp), out_ty=R.Tensor((4, n), "int8"))
return out
mod = LegalizeOps()(Quantize)
tvm.ir.assert_structural_equal(mod, Expected)
def test_quantize_fp32_to_int8_scalar_param():
@tvm.script.ir_module
class Quantize:
@R.function
def main(data: R.Tensor((2, 4), "float32")) -> R.Tensor((2, 4), "int8"):
out = R.quantize(
data, R.const(2.0, "float32"), R.const(1, "int8"), axis=-1, out_dtype="int8"
)
return out
@tvm.script.ir_module
class Expected:
@T.prim_func(private=True, s_tir=True)
def quantize(
A: T.Buffer((T.int64(2), T.int64(4)), "float32"),
quantized: T.Buffer((T.int64(2), T.int64(4)), "int8"),
):
T.func_attr({"tirx.noalias": True})
# with T.sblock("root"):
for i0, i1 in T.grid(T.int64(2), T.int64(4)):
with T.sblock("quantized"):
v_i0, v_i1 = T.axis.remap("SS", [i0, i1])
T.reads(A[v_i0, v_i1])
T.writes(quantized[v_i0, v_i1])
quantized[v_i0, v_i1] = T.Cast(
"int8",
T.max(
T.min(
T.round(A[v_i0, v_i1] / T.float32(2)) + T.float32(1),
T.float32(127),
),
T.float32(-128),
),
)
@R.function
def main(data: R.Tensor((2, 4), dtype="float32")) -> R.Tensor((2, 4), dtype="int8"):
out = R.call_tir(Expected.quantize, (data,), out_ty=R.Tensor((2, 4), dtype="int8"))
return out
mod = LegalizeOps()(Quantize)
tvm.ir.assert_structural_equal(mod, Expected)
def test_quantize_fp32_to_int8_scalar_1d_param():
@tvm.script.ir_module
class Quantize:
@R.function
def main(data: R.Tensor((2, 4), "float32")) -> R.Tensor((2, 4), "int8"):
out = R.quantize(
data,
R.const([2.0, 1.0], "float32"),
R.const([4, 5], "int8"),
axis=0,
out_dtype="int8",
)
return out
@tvm.script.ir_module
class Expected:
@T.prim_func(private=True, s_tir=True)
def quantize(
A: T.Buffer((T.int64(2), T.int64(4)), "float32"),
B: T.Buffer((T.int64(2),), "float32"),
C: T.Buffer((T.int64(2),), "int8"),
quantized: T.Buffer((T.int64(2), T.int64(4)), "int8"),
):
T.func_attr({"tirx.noalias": True})
# with T.sblock("root"):
for i0, i1 in T.grid(T.int64(2), T.int64(4)):
with T.sblock("quantized"):
v_i0, v_i1 = T.axis.remap("SS", [i0, i1])
T.reads(A[v_i0, v_i1], B[v_i0], C[v_i0])
T.writes(quantized[v_i0, v_i1])
quantized[v_i0, v_i1] = T.Cast(
"int8",
T.max(
T.min(
T.round(A[v_i0, v_i1] / B[v_i0]) + T.Cast("float32", C[v_i0]),
T.float32(127),
),
T.float32(-128),
),
)
@R.function
def main(data: R.Tensor((2, 4), dtype="float32")) -> R.Tensor((2, 4), dtype="int8"):
cls = Expected
out = R.call_tir(
cls.quantize,
(data, R.const([2.0, 1.0], "float32"), R.const([4, 5], "int8")),
out_ty=R.Tensor((2, 4), dtype="int8"),
)
return out
mod = LegalizeOps()(Quantize)
tvm.ir.assert_structural_equal(mod, Expected)
def test_quantize_fp16_to_int8_scalar_param():
@tvm.script.ir_module
class Quantize:
@R.function
def main(data: R.Tensor((2, 4), "float16")) -> R.Tensor((2, 4), "int8"):
out = R.quantize(
data, R.const(2.0, "float16"), R.const(1, "int8"), axis=-1, out_dtype="int8"
)
return out
@tvm.script.ir_module
class Expected:
@T.prim_func(private=True, s_tir=True)
def quantize(
A: T.Buffer((T.int64(2), T.int64(4)), "float16"),
quantized: T.Buffer((T.int64(2), T.int64(4)), "int8"),
):
T.func_attr({"tirx.noalias": True})
# with T.sblock("root"):
for i0, i1 in T.grid(T.int64(2), T.int64(4)):
with T.sblock("quantized"):
v_i0, v_i1 = T.axis.remap("SS", [i0, i1])
T.reads(A[v_i0, v_i1])
T.writes(quantized[v_i0, v_i1])
quantized[v_i0, v_i1] = T.Cast(
"int8",
T.max(
T.min(
T.round(A[v_i0, v_i1] / T.float16(2)) + T.float16(1),
T.float16(127),
),
T.float16(-128),
),
)
@R.function
def main(data: R.Tensor((2, 4), dtype="float16")) -> R.Tensor((2, 4), dtype="int8"):
out = R.call_tir(Expected.quantize, (data,), out_ty=R.Tensor((2, 4), dtype="int8"))
return out
mod = LegalizeOps()(Quantize)
tvm.ir.assert_structural_equal(mod, Expected)
def test_dequantize_int8_to_fp32():
@tvm.script.ir_module
class Dequantize:
@R.function
def main(
data: R.Tensor((2, 4), "int8"),
scale: R.Tensor((2,), "float32"),
zp: R.Tensor((2,), "int8"),
) -> R.Tensor((2, 4), "float32"):
out = R.dequantize(data, scale, zp, axis=0, out_dtype="float32")
return out
@tvm.script.ir_module
class Expected:
@T.prim_func(private=True, s_tir=True)
def dequantize(
A: T.Buffer((T.int64(2), T.int64(4)), "int8"),
B: T.Buffer((T.int64(2),), "float32"),
C: T.Buffer((T.int64(2),), "int8"),
dequantized: T.Buffer((T.int64(2), T.int64(4)), "float32"),
):
T.func_attr({"tirx.noalias": True})
# with T.sblock("root"):
for i0, i1 in T.grid(T.int64(2), T.int64(4)):
with T.sblock("dequantized"):
v_i0, v_i1 = T.axis.remap("SS", [i0, i1])
T.reads(A[v_i0, v_i1], C[v_i0], B[v_i0])
T.writes(dequantized[v_i0, v_i1])
dequantized[v_i0, v_i1] = (
T.Cast("float32", T.Cast("int32", A[v_i0, v_i1]) - T.Cast("int32", C[v_i0]))
* B[v_i0]
)
@R.function
def main(
data: R.Tensor((2, 4), dtype="int8"),
scale: R.Tensor((2,), dtype="float32"),
zp: R.Tensor((2,), dtype="int8"),
) -> R.Tensor((2, 4), dtype="float32"):
out = R.call_tir(
Expected.dequantize, (data, scale, zp), out_ty=R.Tensor((2, 4), dtype="float32")
)
return out
mod = LegalizeOps()(Dequantize)
tvm.ir.assert_structural_equal(mod, Expected)
def test_dequantize_int8_to_fp32_scalar_param():
@tvm.script.ir_module
class Dequantize:
@R.function
def main(data: R.Tensor((2, 4), "int8")) -> R.Tensor((2, 4), "float32"):
out = R.dequantize(
data, R.const(2.0, "float32"), R.const(1, "int8"), axis=0, out_dtype="float32"
)
return out
@tvm.script.ir_module
class Expected:
@T.prim_func(private=True, s_tir=True)
def dequantize(
A: T.Buffer((T.int64(2), T.int64(4)), "int8"),
dequantized: T.Buffer((T.int64(2), T.int64(4)), "float32"),
):
T.func_attr({"tirx.noalias": True})
# with T.sblock("root"):
for i0, i1 in T.grid(T.int64(2), T.int64(4)):
with T.sblock("dequantized"):
v_i0, v_i1 = T.axis.remap("SS", [i0, i1])
T.reads(A[v_i0, v_i1])
T.writes(dequantized[v_i0, v_i1])
dequantized[v_i0, v_i1] = T.Cast(
"float32", T.Cast("int32", A[v_i0, v_i1]) - 1
) * T.float32(2)
@R.function
def main(data: R.Tensor((2, 4), dtype="int8")) -> R.Tensor((2, 4), dtype="float32"):
cls = Expected
out = R.call_tir(cls.dequantize, (data,), out_ty=R.Tensor((2, 4), dtype="float32"))
return out
mod = LegalizeOps()(Dequantize)
tvm.ir.assert_structural_equal(mod, Expected)
def test_dequantize_int8_to_fp32_symbolic():
@tvm.script.ir_module
class Dequantize:
@R.function
def main(
data: R.Tensor((2, "n"), "int8"),
scale: R.Tensor(("n",), "float32"),
zp: R.Tensor(("n",), "int8"),
) -> R.Tensor((2, "n"), "float32"):
out = R.dequantize(data, scale, zp, axis=-1, out_dtype="float32")
return out
@tvm.script.ir_module
class Expected:
@T.prim_func(private=True, s_tir=True)
def dequantize(
var_A: T.handle, var_B: T.handle, var_C: T.handle, var_dequantized: T.handle
):
T.func_attr({"tirx.noalias": True})
n = T.int64()
A = T.match_buffer(var_A, (T.int64(2), n), "int8")
B = T.match_buffer(var_B, (n,))
C = T.match_buffer(var_C, (n,), "int8")
dequantized = T.match_buffer(var_dequantized, (T.int64(2), n))
# with T.sblock("root"):
for i0, i1 in T.grid(T.int64(2), n):
with T.sblock("dequantized"):
v_i0, v_i1 = T.axis.remap("SS", [i0, i1])
T.reads(A[v_i0, v_i1], C[v_i1], B[v_i1])
T.writes(dequantized[v_i0, v_i1])
dequantized[v_i0, v_i1] = (
T.Cast("float32", T.Cast("int32", A[v_i0, v_i1]) - T.Cast("int32", C[v_i1]))
* B[v_i1]
)
@R.function
def main(
data: R.Tensor((2, "n"), dtype="int8"),
scale: R.Tensor(("n",), dtype="float32"),
zp: R.Tensor(("n",), dtype="int8"),
) -> R.Tensor((2, "n"), dtype="float32"):
n = T.int64()
out = R.call_tir(
Expected.dequantize, (data, scale, zp), out_ty=R.Tensor((2, n), dtype="float32")
)
return out
mod = LegalizeOps()(Dequantize)
tvm.ir.assert_structural_equal(mod, Expected)
def test_dequantize_int8_to_fp16():
@tvm.script.ir_module
class Dequantize:
@R.function
def main(
data: R.Tensor((2, 4), "int8"),
scale: R.Tensor((2,), "float16"),
zp: R.Tensor((2,), "int8"),
) -> R.Tensor((2, 4), "float16"):
out = R.dequantize(data, scale, zp, axis=0, out_dtype="float16")
return out
@tvm.script.ir_module
class Expected:
@T.prim_func(private=True, s_tir=True)
def dequantize(
A: T.Buffer((T.int64(2), T.int64(4)), "int8"),
B: T.Buffer((T.int64(2),), "float16"),
C: T.Buffer((T.int64(2),), "int8"),
dequantized: T.Buffer((T.int64(2), T.int64(4)), "float16"),
):
T.func_attr({"tirx.noalias": True})
# with T.sblock("root"):
for i0, i1 in T.grid(T.int64(2), T.int64(4)):
with T.sblock("dequantized"):
v_i0, v_i1 = T.axis.remap("SS", [i0, i1])
T.reads(A[v_i0, v_i1], C[v_i0], B[v_i0])
T.writes(dequantized[v_i0, v_i1])
dequantized[v_i0, v_i1] = T.Cast(
"float16",
T.max(
T.min(
T.Cast(
"float32",
T.Cast("int32", A[v_i0, v_i1]) - T.Cast("int32", C[v_i0]),
)
* T.Cast("float32", B[v_i0]),
T.float32(65504),
),
T.float32(-65504),
),
)
@R.function
def main(
data: R.Tensor((2, 4), dtype="int8"),
scale: R.Tensor((2,), dtype="float16"),
zp: R.Tensor((2,), dtype="int8"),
) -> R.Tensor((2, 4), dtype="float16"):
out = R.call_tir(
Expected.dequantize, (data, scale, zp), out_ty=R.Tensor((2, 4), dtype="float16")
)
return out
mod = LegalizeOps()(Dequantize)
tvm.ir.assert_structural_equal(mod, Expected)
def test_dequantize_int8_to_fp16_scalar_param():
@tvm.script.ir_module
class Dequantize:
@R.function
def main(data: R.Tensor((2, 4), "int8")) -> R.Tensor((2, 4), "float16"):
out = R.dequantize(
data, R.const(2.0, "float16"), R.const(1, "int8"), axis=0, out_dtype="float16"
)
return out
@tvm.script.ir_module
class Expected:
@T.prim_func(private=True, s_tir=True)
def dequantize(
A: T.Buffer((T.int64(2), T.int64(4)), "int8"),
dequantized: T.Buffer((T.int64(2), T.int64(4)), "float16"),
):
T.func_attr({"tirx.noalias": True})
# with T.sblock("root"):
for i0, i1 in T.grid(T.int64(2), T.int64(4)):
with T.sblock("dequantized"):
v_i0, v_i1 = T.axis.remap("SS", [i0, i1])
T.reads(A[v_i0, v_i1])
T.writes(dequantized[v_i0, v_i1])
dequantized[v_i0, v_i1] = T.Cast(
"float16",
T.max(
T.min(
T.Cast("float32", T.Cast("int32", A[v_i0, v_i1]) - 1)
* T.float32(2),
T.float32(65504),
),
T.float32(-65504),
),
)
@R.function
def main(data: R.Tensor((2, 4), dtype="int8")) -> R.Tensor((2, 4), dtype="float16"):
cls = Expected
out = R.call_tir(cls.dequantize, (data,), out_ty=R.Tensor((2, 4), dtype="float16"))
return out
mod = LegalizeOps()(Dequantize)
tvm.ir.assert_structural_equal(mod, Expected)
if __name__ == "__main__":
tvm.testing.main()