qiuyu 46397a5114 ISA-Refactor for ecmascript
ISA-Refactor for ecmascript

Issue: I5QWXL
Signed-off-by: qiuyu <qiuyu22@huawei.com>
2022-09-27 21:51:36 +08:00

104 lines
3.2 KiB
Ruby

# Copyright (c) 2021-2022 Huawei Device Co., Ltd.
# 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.
# Assembler specific extension of ISAPI
Instruction.class_eval do
def asm_token
mnemonic.tr('.', '_').upcase
end
def call?
properties.include?('call')
end
def range?
mnemonic.split('.')[-1] == 'range'
end
def simple_call?
call? && !range? && !properties.include?('dynamic')
end
def return?
stripped_mnemonic == 'return'
end
def return_obj?
mnemonic == 'return.obj'
end
def return64?
mnemonic == 'return.64'
end
def return32?
mnemonic == 'return'
end
def return_void?
mnemonic == 'return.void'
end
end
def bit_cast(what, to_type, from_type)
"bit_cast<#{to_type}, #{from_type}>(static_cast<#{from_type}>(std::get<double>(#{what})))"
end
def index_of_max(a)
a.each_with_index.max[1] # returns index of `last` max value
end
def max_number_of_src_regs
Panda::instructions.map do |insn|
insn.operands.select(&:reg?).select(&:src?).size
end.max
end
IR = Struct.new(:opcode, :flags, :dst_idx, :use_idxs)
module Panda
def self.pseudo_instructions
insns = []
insns << IR.new('MOVX', ['InstFlags::PSEUDO'], 0, [1])
insns << IR.new('LDAX', ['InstFlags::PSEUDO', 'InstFlags::ACC_WRITE'], 'INVALID_REG_IDX', [0])
insns << IR.new('STAX', ['InstFlags::PSEUDO', 'InstFlags::ACC_READ'], 0, [])
insns << IR.new('NEWX', ['InstFlags::PSEUDO'], 0, [])
insns << IR.new('INITOBJX', ['InstFlags::PSEUDO', 'InstFlags::CALL', 'InstFlags::ACC_WRITE'], 'INVALID_REG_IDX', [])
insns << IR.new('CALLX', ['InstFlags::PSEUDO', 'InstFlags::CALL', 'InstFlags::ACC_WRITE'], 'INVALID_REG_IDX', [])
insns << IR.new('CALLX_VIRT', ['InstFlags::PSEUDO', 'InstFlags::CALL', 'InstFlags::ACC_WRITE'], 'INVALID_REG_IDX', [])
insns << IR.new('B_P_CALLIX', ['InstFlags::PSEUDO', 'InstFlags::CALL', 'InstFlags::ACC_WRITE'], 'INVALID_REG_IDX', [])
insns << IR.new('B_P_CALLIEX',['InstFlags::PSEUDO', 'InstFlags::CALL', 'InstFlags::ACC_WRITE'], 'INVALID_REG_IDX', [])
insns
end
end
# returns array of OpenStruct with fields
# name - name of variable in emitter code
# type - type of variable in emitter code
def assembler_signature(group, is_jump)
insn = group.first
format_ops(insn.format).each do |o|
if o.name.start_with?('imm')
if insn.asm_token.start_with?('F')
o.type, o.name = is_jump ? ['const std::string &', 'label'] : ['double', o.name]
else
o.type, o.name = is_jump ? ['const std::string &', 'label'] : ['int64_t', o.name]
end
elsif o.name.start_with?('id')
o.type, o.name = ['const std::string &', o.name]
else
o.type = 'uint16_t'
end
end
end