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# Copyright 2016 The Gemmlowp Authors. All rights reserved.
#
# Licensed 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 collections
_HEADER_COPYRIGHT = (
'''// Copyright 2016 The Gemmlowp Authors. All Rights Reserved.
//
// Licensed 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.
''')
def GenerateHeader(cc, header_name, preprocessor_directive):
cc.EmitCodeNoSemicolon(_HEADER_COPYRIGHT)
cc.EmitHeaderBegin(header_name)
cc.EmitPreprocessor1('ifdef', preprocessor_directive)
cc.EmitNewline()
cc.EmitInclude('<cassert>')
cc.EmitInclude('<cstdint>')
cc.EmitNewline()
def GenerateFooter(cc, message):
cc.EmitPreprocessor('else')
cc.EmitPreprocessor1('warning', '"%s"' % message)
cc.EmitPreprocessor('endif')
cc.EmitNewline()
cc.EmitHeaderEnd()
def GenerateDebugLog(cc, message):
cc.EmitPreprocessor1('ifdef', 'DEBUG')
cc.EmitPreprocessor1('ifdef', 'DEBUG_METAGEMM_VERBOSE')
cc.EmitCode('std::cout << __FILE__ << \"(\" << __LINE__ << \") %s\" '
'<< std::endl << std::flush' % message)
cc.EmitPreprocessor('endif')
cc.EmitPreprocessor('endif')
def _TemplateName(base, params):
return '%s<%s>' % (base, ', '.join(map(str, params)))
class StreamGenerator(object):
"""."""
def __init__(self, emitter, name):
self.name = name
self.emitter = emitter
def SpecializeStream(self, in_type, lanes_count, pack_size, leftovers):
if isinstance(getattr(self, 'EmitPack', None), collections.Callable):
template_params = [in_type, lanes_count, pack_size, leftovers, self.name]
self.emitter.EmitMemberFunctionBegin(
'Stream', [], template_params, 'Pack',
[['const %s*' % in_type, 'in'], ['const %s&' % self.name, 'params'],
['%s*' % in_type, 'out']], 'inline void')
GenerateDebugLog(self.emitter,
'%s::Pack()' % _TemplateName(self.name, template_params))
self.EmitPack(in_type, lanes_count, pack_size, leftovers)
self.emitter.EmitFunctionEnd()
class MulKernelGenerator(object):
"""."""
def __init__(self, emitter, kernel_name, output_stream_name):
self.kernel_name = kernel_name
self.output_stream_name = output_stream_name
self.emitter = emitter
def SpecializeMulKernel(self, in_type, out_type, kernel_m, kernel_n,
pack_size):
"""Generates the kernel wrapped in a MulKernel template specialization."""
template_params = [
in_type, out_type, self.kernel_name, self.output_stream_name, kernel_m,
kernel_n, pack_size
]
self.emitter.EmitMemberFunctionBegin(
'MulKernel', [], template_params, 'Multiply',
[['const %s*' % in_type, 'lhs'], ['const %s*' % in_type, 'rhs'], [
'const FusedKernelParams<%s, %s>&' % (self.kernel_name,
self.output_stream_name),
'params'
], ['%s*' % out_type, 'result']], 'inline void')
GenerateDebugLog(self.emitter, '%s::Multiply()' %
_TemplateName(self.kernel_name + self.output_stream_name,
template_params))
self.EmitMultiply(in_type, out_type, kernel_m, kernel_n, pack_size)
self.emitter.EmitFunctionEnd()
class Transform1DKernelGenerator(object):
"""."""
def __init__(self, emitter, kernel_name):
self.kernel_name = kernel_name
self.emitter = emitter
def SpecializeTransform1DKernel(self, in_type, out_type, kernel_size,
leftovers):
"""Generates the kernel wrapped in a Transform1DKernel specialization."""
template_params = [
in_type, out_type, self.kernel_name, kernel_size, leftovers
]
self.emitter.EmitMemberFunctionBegin(
'Transform1DKernel', [], template_params, 'Transform',
[['const %s*' % in_type, 'input'],
['const %s&' % self.kernel_name, 'params'],
['%s*' % out_type, 'output']], 'inline void')
GenerateDebugLog(self.emitter, '%s::Transform()' %
_TemplateName(self.kernel_name, template_params))
self.EmitTransform(in_type, out_type, kernel_size, leftovers)
self.emitter.EmitFunctionEnd()
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