# 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. import tvm import re def test_fp16_to_fp32(): if tvm.codegen.llvm_version_major() < 6: print("Skipping due to LLVM version being {} < 6".format( tvm.codegen.llvm_version_major())) return def fp16_to_fp32(target, width, match=None, not_match=None): elements = 64 n = tvm.convert(elements) A = tvm.placeholder((n, width), dtype="float16", name='A') B = tvm.compute(A.shape, lambda *i: A(*i).astype("float32"), name='B') s = tvm.create_schedule(B.op) s[B].vectorize(s[B].op.axis[1]) f = tvm.build(s, [A, B], target) assembly = f.get_source('asm').splitlines() if match: matches = [l for l in assembly if re.search(match, l)] assert matches if not_match: not_matches = [l for l in assembly if re.search(not_match, l)] assert not not_matches fp16_to_fp32( 'llvm -mcpu=skylake-avx512', 15, match="vcvtph2ps.*ymm", not_match="vcvtph2ps.*zmm") fp16_to_fp32( 'llvm -mcpu=skylake-avx512', 16, match="vcvtph2ps.*zmm") fp16_to_fp32( 'llvm -mcpu=skylake-avx512', 17, match="vcvtph2ps.*zmm") fp16_to_fp32( 'llvm -mcpu=skylake-avx512', 49, match="vcvtph2ps.*zmm") fp16_to_fp32( 'llvm -mcpu=skylake-avx512 -mattr=-avx512f', 49, match="vcvtph2ps.*ymm", not_match="vcvtph2ps.*zmm") fp16_to_fp32( 'llvm -mcpu=skylake-avx512 -mattr=-f16c,-avx512f', 49, not_match="vcvtph2ps") fp16_to_fp32( 'llvm -mcpu=core-avx2', 8, match="vcvtph2ps.*ymm") fp16_to_fp32( 'llvm -mcpu=core-avx2', 9, match="vcvtph2ps.*ymm") fp16_to_fp32( 'llvm', 9, not_match="vcvtph2ps") if __name__ == "__main__": test_fp16_to_fp32()