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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 00:47:55 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 00:47:55 +0000 |
commit | 26a029d407be480d791972afb5975cf62c9360a6 (patch) | |
tree | f435a8308119effd964b339f76abb83a57c29483 /js/src/jit/GenerateLIRFiles.py | |
parent | Initial commit. (diff) | |
download | firefox-26a029d407be480d791972afb5975cf62c9360a6.tar.xz firefox-26a029d407be480d791972afb5975cf62c9360a6.zip |
Adding upstream version 124.0.1.upstream/124.0.1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'js/src/jit/GenerateLIRFiles.py')
-rw-r--r-- | js/src/jit/GenerateLIRFiles.py | 283 |
1 files changed, 283 insertions, 0 deletions
diff --git a/js/src/jit/GenerateLIRFiles.py b/js/src/jit/GenerateLIRFiles.py new file mode 100644 index 0000000000..6fe2e8ae8d --- /dev/null +++ b/js/src/jit/GenerateLIRFiles.py @@ -0,0 +1,283 @@ +# This Source Code Form is subject to the terms of the Mozilla Public +# License, v. 2.0. If a copy of the MPL was not distributed with this +# file, You can obtain one at http://mozilla.org/MPL/2.0/. + +# This script generates jit/LIROpsGenerated.h (list of LIR instructions) +# from LIROps.yaml. + +import buildconfig +import six +import yaml +from mozbuild.preprocessor import Preprocessor + +HEADER_TEMPLATE = """\ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +#ifndef %(includeguard)s +#define %(includeguard)s + +/* This file is generated by jit/GenerateLIRFiles.py. Do not edit! */ + +%(contents)s + +#endif // %(includeguard)s +""" + + +def load_yaml(yaml_path): + # First invoke preprocessor.py so that we can use #ifdef JS_SIMULATOR in + # the YAML file. + pp = Preprocessor() + pp.context.update(buildconfig.defines["ALLDEFINES"]) + pp.out = six.StringIO() + pp.do_filter("substitution") + pp.do_include(yaml_path) + contents = pp.out.getvalue() + return yaml.safe_load(contents) + + +def generate_header(c_out, includeguard, contents): + c_out.write( + HEADER_TEMPLATE + % { + "includeguard": includeguard, + "contents": contents, + } + ) + + +operand_types = { + "WordSized": "LAllocation", + "BoxedValue": "LBoxAllocation", + "Int64": "LInt64Allocation", +} + + +result_types = { + "WordSized": "1", + "BoxedValue": "BOX_PIECES", + "Int64": "INT64_PIECES", +} + + +def gen_helper_template_value(num_regular_allocs, num_value_allocs, num_int64_allocs): + template_str = "" + if num_value_allocs: + template_str += str(num_value_allocs) + " * BOX_PIECES + " + if num_int64_allocs: + template_str += str(num_int64_allocs) + " * INT64_PIECES + " + template_str += str(num_regular_allocs) + return template_str + + +def build_index_def(num_specials_operands, index_value, num_reg_operands, piece): + if num_specials_operands: + return " static const size_t {} = {} + {} * {};\\\n".format( + index_value, num_reg_operands, piece, num_specials_operands + ) + else: + return " static const size_t {} = {};\\\n".format( + index_value, num_reg_operands + ) + + +def gen_lir_class( + name, result_type, operands, arguments, num_temps, call_instruction, mir_op +): + """Generates class definition for a single LIR opcode.""" + class_name = "L" + name + + getters = [] + setters = [] + # Operand index definitions. + oper_indices = [] + # Parameters for the class constructor. + constructor_params = [] + + num_reg_operands = 0 + num_value_operands = 0 + num_int64_operands = 0 + if operands: + # Get number of LAllocations to use for defining indices. + for operand in operands: + if operands[operand] == "WordSized": + num_reg_operands += 1 + + current_reg_oper = 0 + for operand in operands: + op_type = operands[operand] + op_alloc_type = operand_types[op_type] + constructor_params.append("const " + op_alloc_type + "& " + operand) + if op_type == "WordSized": + index_value = str(current_reg_oper) + current_reg_oper += 1 + getters.append( + " const " + + op_alloc_type + + "* " + + operand + + "() { return getOperand(" + + index_value + + "); }" + ) + setters.append(" setOperand(" + index_value + ", " + operand + ");") + elif op_type == "BoxedValue": + index_value = operand[0].upper() + operand[1:] + "Index" + oper_indices.append( + build_index_def( + num_value_operands, index_value, num_reg_operands, "BOX_PIECES" + ) + ) + num_value_operands += 1 + # No getters generated for BoxedValue operands. + setters.append( + " setBoxOperand(" + index_value + ", " + operand + ");" + ) + elif op_type == "Int64": + index_value = operand[0].upper() + operand[1:] + "Index" + oper_indices.append( + build_index_def( + num_int64_operands, + index_value, + num_reg_operands, + "INT64_PIECES", + ) + ) + num_int64_operands += 1 + getters.append( + " const " + + op_alloc_type + + " " + + operand + + "() { return getInt64Operand(" + + index_value + + "); }" + ) + setters.append( + " setInt64Operand(" + index_value + ", " + operand + ");" + ) + else: + raise Exception("Invalid operand type: " + op_type) + if num_temps: + for temp in range(num_temps): + constructor_params.append("const LDefinition& temp" + str(temp)) + setters.append(" setTemp(" + str(temp) + ", temp" + str(temp) + ");") + getters.append( + " const LDefinition* temp" + + str(temp) + + "() { return getTemp(" + + str(temp) + + "); }" + ) + code = "class {} : public LInstructionHelper<".format(class_name) + if result_type: + code += result_types[result_type] + ", " + else: + code += "0, " + code += gen_helper_template_value( + num_reg_operands, num_value_operands, num_int64_operands + ) + code += ", {}> {{\\\n".format(num_temps) + if arguments: + for arg_name in arguments: + arg_type_sig = arguments[arg_name] + constructor_params.append(arg_type_sig + " " + arg_name) + code += " " + arg_type_sig + " " + arg_name + "_;\\\n" + code += " public:\\\n LIR_HEADER({})\\\n".format(name) + code += " explicit {}(".format(class_name) + code += ", ".join(constructor_params) + code += ") : LInstructionHelper(classOpcode)" + if arguments: + for arg_name in arguments: + code += ", " + arg_name + "_(" + arg_name + ")" + code += " {" + if call_instruction: + code += "\\\n this->setIsCall();" + code += "\\\n" + code += "\\\n".join(setters) + code += "\\\n }\\\n" + code += "\\\n".join(getters) + if arguments: + for arg_name in arguments: + code += " " + arguments[arg_name] + " " + arg_name + "() const { " + code += "return " + arg_name + "_; }\\\n" + code += "\\\n" + if operands: + code += "\\\n".join(oper_indices) + if mir_op: + if mir_op is True: + code += " M{}* mir() const {{ return mir_->to{}(); }};\\\n".format( + name, name + ) + else: + code += " M{}* mir() const {{ return mir_->to{}(); }};\\\n".format( + mir_op, mir_op + ) + code += "};\\\n" + return code + + +def generate_lir_header(c_out, yaml_path): + data = load_yaml(yaml_path) + + # LIR_OPCODE_LIST opcode. + ops = [] + + # Generated LIR op class definitions. + lir_op_classes = [] + + for op in data: + name = op["name"] + + gen_boilerplate = op.get("gen_boilerplate", True) + assert isinstance(gen_boilerplate, bool) + + if gen_boilerplate: + result_type = op.get("result_type", None) + assert result_type is None or str + if result_type: + assert result_types[result_type] + + operands = op.get("operands", None) + assert operands is None or isinstance(operands, dict) + + arguments = op.get("arguments", None) + assert arguments is None or isinstance(arguments, dict) + + num_temps = op.get("num_temps", 0) + assert num_temps is None or int + + gen_boilerplate = op.get("gen_boilerplate", True) + assert isinstance(gen_boilerplate, bool) + + call_instruction = op.get("call_instruction", None) + assert call_instruction is None or True + + mir_op = op.get("mir_op", None) + assert mir_op is None or True or str + + lir_op_classes.append( + gen_lir_class( + name, + result_type, + operands, + arguments, + num_temps, + call_instruction, + mir_op, + ) + ) + + ops.append("_({})".format(name)) + + contents = "#define LIR_OPCODE_LIST(_)\\\n" + contents += "\\\n".join(ops) + contents += "\n\n" + + contents += "#define LIR_OPCODE_CLASS_GENERATED \\\n" + contents += "\\\n".join(lir_op_classes) + contents += "\n\n" + + generate_header(c_out, "jit_LIROpsGenerated_h", contents) |