# Licensed to the Apache Software Foundation (ASF) under one # or more contributor license agreements. See the NOTICE file # distributed with this work for additional information # regarding copyright ownership. The ASF licenses this file # to you 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. """Utility for Interacting with SPIRV Tools""" import subprocess import os from . import util from .._ffi.base import py_str def optimize(spv_bin): """Optimize SPIRV using spirv-opt via CLI Note that the spirv-opt is still experimental. Parameters ---------- spv_bin : bytearray The spirv file Return ------ cobj_bin : bytearray The HSA Code Object """ tmp_dir = util.tempdir() tmp_in = tmp_dir.relpath("input.spv") tmp_out = tmp_dir.relpath("output.spv") with open(tmp_in, "wb") as out_file: out_file.write(bytes(spv_bin)) sdk = os.environ.get("VULKAN_SDK", None) cmd = os.path.join(sdk, "bin/spirv-opt") if sdk else "spirv-opt" args = [cmd, "-O", tmp_in, "-o", tmp_out] proc = subprocess.Popen( args, stdout=subprocess.PIPE, stderr=subprocess.STDOUT) (out, _) = proc.communicate() if proc.returncode != 0: msg = "Opitmizationerror using spirv-opt:\n" msg += py_str(out) raise RuntimeError(msg) return bytearray(open(tmp_out, "rb").read())