wpleonardo commented on code in PR #1375: URL: https://github.com/apache/orc/pull/1375#discussion_r1169460079
########## c++/src/BitUnpackerAvx512.hh: ########## @@ -0,0 +1,488 @@ +/** + * 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. + */ + +#ifndef ORC_BIT_UNPACKER_AVX512_HH +#define ORC_BIT_UNPACKER_AVX512_HH + +// Mingw-w64 defines strcasecmp in string.h +#if defined(_WIN32) && !defined(strcasecmp) +#include <string.h> +#define strcasecmp stricmp +#else +#include <strings.h> +#endif + +#include <immintrin.h> +#include <cstdint> +#include <vector> + +namespace orc { +#define ORC_VECTOR_BITS_2_BYTE(x) \ + (((x) + 7u) >> 3u) /**< Convert a number of bits to a number of bytes */ +#define ORC_VECTOR_ONE_64U (1ULL) +#define ORC_VECTOR_MAX_16U 0xFFFF /**< Max value for uint16_t */ +#define ORC_VECTOR_MAX_32U 0xFFFFFFFF /**< Max value for uint32_t */ +#define ORC_VECTOR_BYTE_WIDTH 8u /**< Byte width in bits */ +#define ORC_VECTOR_WORD_WIDTH 16u /**< Word width in bits */ +#define ORC_VECTOR_DWORD_WIDTH 32u /**< Dword width in bits */ +#define ORC_VECTOR_QWORD_WIDTH 64u /**< Qword width in bits */ +#define ORC_VECTOR_BIT_MASK(x) \ + ((ORC_VECTOR_ONE_64U << (x)) - 1u) /**< Bit mask below bit position */ + +#define ORC_VECTOR_BITS_2_WORD(x) \ + (((x) + 15u) >> 4u) /**< Convert a number of bits to a number of words */ +#define ORC_VECTOR_BITS_2_DWORD(x) \ + (((x) + 31u) >> 5u) /**< Convert a number of bits to a number of double words */ + + // ------------------------------------ 3u ----------------------------------------- + static uint8_t shuffleIdxTable3u_0[64] = { Review Comment: Fixed -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
