a5255d77a3
# ignore-this-changeset Differential Revision: https://phabricator.services.mozilla.com/D162664
87 lines
2.7 KiB
Python
87 lines
2.7 KiB
Python
from collections import OrderedDict
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import buildconfig
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import six
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import yaml
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from mozbuild.preprocessor import Preprocessor
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HEADER_TEMPLATE = """\
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef %(includeguard)s
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#define %(includeguard)s
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/* This file is generated by wasm/GenerateInstrinsic.py. Do not edit! */
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%(contents)s
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#endif // %(includeguard)s
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"""
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def generate_header(c_out, includeguard, contents):
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c_out.write(
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HEADER_TEMPLATE
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% {
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"includeguard": includeguard,
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"contents": contents,
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}
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)
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def load_yaml(yaml_path):
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# First invoke preprocessor.py so that we can use #ifdef JS_SIMULATOR in
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# the YAML file.
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pp = Preprocessor()
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pp.context.update(buildconfig.defines["ALLDEFINES"])
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pp.out = six.StringIO()
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pp.do_filter("substitution")
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pp.do_include(yaml_path)
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contents = pp.out.getvalue()
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# Load into an OrderedDict to ensure order is preserved. Note: Python 3.7+
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# also preserves ordering for normal dictionaries.
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# Code based on https://stackoverflow.com/a/21912744.
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class OrderedLoader(yaml.Loader):
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pass
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def construct_mapping(loader, node):
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loader.flatten_mapping(node)
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return OrderedDict(loader.construct_pairs(node))
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tag = yaml.resolver.BaseResolver.DEFAULT_MAPPING_TAG
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OrderedLoader.add_constructor(tag, construct_mapping)
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return yaml.load(contents, OrderedLoader)
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def main(c_out, yaml_path):
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data = load_yaml(yaml_path)
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# Interate for all defined intrinsics
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contents = "#define FOR_EACH_INTRINSIC(M) \\\n"
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for i in range(len(data)):
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op = data[i]
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sa = op["symbolic_address"]
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contents += (
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f" M({op['op']}, \"{op['export']}\", "
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f"{sa['name']}, {sa['type']}, {op['entry']}, {i})\\\n"
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)
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contents += "\n"
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for op in data:
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# Define DECLARE_INTRINSIC_SAS_PARAM_VALTYPES_<op> as:
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# `{ValType::I32, ValType::I32, ...}`.
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contents += (
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f"#define DECLARE_INTRINSIC_SAS_PARAM_VALTYPES_{op['op']} "
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f"{{ValType::{', ValType::'.join(op['params'])}}}\n"
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)
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# Define DECLARE_INTRINSIC_PARAM_TYPES_<op> as:
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# `<num_types>, {_PTR, _I32, ..., _PTR, _END}`.
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sas_types = f"{{_PTR{''.join(', _' + p for p in op['params'])}, _PTR, _END}}"
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num_types = len(op["params"]) + 2
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contents += f"#define DECLARE_INTRINSIC_PARAM_TYPES_{op['op']} {num_types}, {sas_types}\n"
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generate_header(c_out, "wasm_WasmIntrinsicGenerated_h", contents)
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