test / tools /generate-reduce-test.py
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#!/usr/bin/env python
# Copyright 2023 Google LLC
#
# This source code is licensed under the BSD-style license found in the
# LICENSE file in the root directory of this source tree.
import argparse
import codecs
import math
import os
import re
import sys
import yaml
sys.path.insert(0, os.path.dirname(os.path.abspath(__file__)))
import xngen
import xnncommon
parser = argparse.ArgumentParser(
description='Reduce microkernel test generator')
parser.add_argument("-t", "--tester", metavar="TESTER", required=True,
choices=["ReduceMicrokernelTester", "RSumMicrokernelTester"],
help="Tester class to be used in the generated test")
parser.add_argument("-s", "--spec", metavar="FILE", required=True,
help="Specification (YAML) file")
parser.add_argument("-o", "--output", metavar="FILE", required=True,
help='Output (C++ source) file')
parser.set_defaults(defines=list())
def split_ukernel_name(name):
match = re.fullmatch(r"xnn_(f16|f16_f32acc|f32)_r(minmax|max|min|sum)_ukernel__(.+)_x(\d+)(_acc\d+)?", name)
if match is None:
raise ValueError("Unexpected microkernel name: " + name)
op_type = {
"minmax": "MinMax",
"max": "Max",
"min": "Min",
"sum": "Sum",
}[match.group(2)]
batch_tile = int(match.group(4))
arch, isa, assembly = xnncommon.parse_target_name(target_name=match.group(3))
return op_type, batch_tile, arch, isa
REDUCE_TEST_TEMPLATE = """\
TEST(${TEST_NAME}, batch_eq_${BATCH_TILE}) {
$if ISA_CHECK:
${ISA_CHECK};
${TESTER}()
.batch_size(${BATCH_TILE})
.Test(${", ".join(TEST_ARGS)});
}
$if BATCH_TILE > 1:
TEST(${TEST_NAME}, batch_div_${BATCH_TILE}) {
$if ISA_CHECK:
${ISA_CHECK};
for (size_t batch_size = ${BATCH_TILE*2}; batch_size < ${BATCH_TILE*10}; batch_size += ${BATCH_TILE}) {
${TESTER}()
.batch_size(batch_size)
.Test(${", ".join(TEST_ARGS)});
}
}
TEST(${TEST_NAME}, batch_lt_${BATCH_TILE}) {
$if ISA_CHECK:
${ISA_CHECK};
for (size_t batch_size = 1; batch_size < ${BATCH_TILE}; batch_size++) {
${TESTER}()
.batch_size(batch_size)
.Test(${", ".join(TEST_ARGS)});
}
}
TEST(${TEST_NAME}, batch_gt_${BATCH_TILE}) {
$if ISA_CHECK:
${ISA_CHECK};
for (size_t batch_size = ${BATCH_TILE+1}; batch_size < ${10 if BATCH_TILE == 1 else BATCH_TILE*2}; batch_size++) {
${TESTER}()
.batch_size(batch_size)
.Test(${", ".join(TEST_ARGS)});
}
}
$if TESTER == "RSumMicrokernelTester":
TEST(${TEST_NAME}, scale) {
$if ISA_CHECK:
${ISA_CHECK};
for (float scale = 0.3f; scale < 5.0f; scale *= 3.0f) {
${TESTER}()
.batch_size(${BATCH_TILE+1})
.scale(scale)
.Test(${", ".join(TEST_ARGS)});
}
}
"""
def generate_test_cases(ukernel, op_type, init_fn, tester, batch_tile, isa):
"""Generates all tests cases for a Vector Binary Operation micro-kernel.
Args:
ukernel: C name of the micro-kernel function.
op_type: Operation type (MAX/MIN/SUM/etc).
init_fn: C name of the function to initialize microkernel parameters.
tester: C++ name of the tester class.
batch_tile: Number of batch elements processed per one iteration of the
inner loop of the micro-kernel.
isa: instruction set required to run the micro-kernel. Generated unit test
will skip execution if the host processor doesn't support this ISA.
Returns:
Code for the test case.
"""
_, test_name = ukernel.split("_", 1)
_, datatype, _ = ukernel.split("_", 2)
test_args = [ukernel]
if tester == "ReduceMicrokernelTester":
test_args.append("ReduceMicrokernelTester::OpType::%s" % op_type)
if init_fn:
test_args.append(init_fn)
return xngen.preprocess(REDUCE_TEST_TEMPLATE, {
"TEST_NAME": test_name.upper().replace("UKERNEL_", ""),
"TEST_ARGS": test_args,
"TESTER": tester,
"DATATYPE": datatype.upper(),
"BATCH_TILE": batch_tile,
"OP_TYPE": op_type,
"ISA_CHECK": xnncommon.generate_isa_check_macro(isa),
})
def main(args):
options = parser.parse_args(args)
with codecs.open(options.spec, "r", encoding="utf-8") as spec_file:
spec_yaml = yaml.safe_load(spec_file)
if not isinstance(spec_yaml, list):
raise ValueError("expected a list of micro-kernels in the spec")
spec_name = os.path.splitext(os.path.split(options.spec)[1])[0]
tester_header = {
"ReduceMicrokernelTester": "reduce-microkernel-tester.h",
"RSumMicrokernelTester": "rsum-microkernel-tester.h",
}[options.tester]
tests = """\
// Copyright 2023 Google LLC
//
// This source code is licensed under the BSD-style license found in the
// LICENSE file in the root directory of this source tree.
//
// Auto-generated file. Do not edit!
// Specification: {specification}
// Generator: {generator}
#include <gtest/gtest.h>
#include <xnnpack/common.h>
#include <xnnpack/isa-checks.h>
#include <xnnpack/microparams-init.h>
#include <xnnpack/reduce.h>
#include "{tester_header}"
""".format(specification=options.spec, generator=sys.argv[0],
tester_header=tester_header)
for ukernel_spec in spec_yaml:
name = ukernel_spec["name"]
init_fn = ukernel_spec.get("init")
op_type, batch_tile, arch, isa = split_ukernel_name(name)
test_case = generate_test_cases(name, op_type, init_fn, options.tester,
batch_tile, isa)
tests += "\n\n" + xnncommon.postprocess_test_case(test_case, arch, isa)
txt_changed = True
if os.path.exists(options.output):
with codecs.open(options.output, "r", encoding="utf-8") as output_file:
txt_changed = output_file.read() != tests
if txt_changed:
with codecs.open(options.output, "w", encoding="utf-8") as output_file:
output_file.write(tests)
if __name__ == "__main__":
main(sys.argv[1:])