crc32intrin.h (3347B) - Raw
1 /*===---- crc32intrin.h - SSE4.2 Accumulate CRC32 intrinsics ---------------=== 2 * 3 * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 * See https://llvm.org/LICENSE.txt for license information. 5 * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 * 7 *===-----------------------------------------------------------------------=== 8 */ 9 10 #ifndef __CRC32INTRIN_H 11 #define __CRC32INTRIN_H 12 13 #define __DEFAULT_FN_ATTRS \ 14 __attribute__((__always_inline__, __nodebug__, __target__("crc32"))) 15 16 /// Adds the unsigned integer operand to the CRC-32C checksum of the 17 /// unsigned char operand. 18 /// 19 /// \headerfile <x86intrin.h> 20 /// 21 /// This intrinsic corresponds to the <c> CRC32B </c> instruction. 22 /// 23 /// \param __C 24 /// An unsigned integer operand to add to the CRC-32C checksum of operand 25 /// \a __D. 26 /// \param __D 27 /// An unsigned 8-bit integer operand used to compute the CRC-32C checksum. 28 /// \returns The result of adding operand \a __C to the CRC-32C checksum of 29 /// operand \a __D. 30 static __inline__ unsigned int __DEFAULT_FN_ATTRS 31 _mm_crc32_u8(unsigned int __C, unsigned char __D) 32 { 33 return __builtin_ia32_crc32qi(__C, __D); 34 } 35 36 /// Adds the unsigned integer operand to the CRC-32C checksum of the 37 /// unsigned short operand. 38 /// 39 /// \headerfile <x86intrin.h> 40 /// 41 /// This intrinsic corresponds to the <c> CRC32W </c> instruction. 42 /// 43 /// \param __C 44 /// An unsigned integer operand to add to the CRC-32C checksum of operand 45 /// \a __D. 46 /// \param __D 47 /// An unsigned 16-bit integer operand used to compute the CRC-32C checksum. 48 /// \returns The result of adding operand \a __C to the CRC-32C checksum of 49 /// operand \a __D. 50 static __inline__ unsigned int __DEFAULT_FN_ATTRS 51 _mm_crc32_u16(unsigned int __C, unsigned short __D) 52 { 53 return __builtin_ia32_crc32hi(__C, __D); 54 } 55 56 /// Adds the first unsigned integer operand to the CRC-32C checksum of 57 /// the second unsigned integer operand. 58 /// 59 /// \headerfile <x86intrin.h> 60 /// 61 /// This intrinsic corresponds to the <c> CRC32L </c> instruction. 62 /// 63 /// \param __C 64 /// An unsigned integer operand to add to the CRC-32C checksum of operand 65 /// \a __D. 66 /// \param __D 67 /// An unsigned 32-bit integer operand used to compute the CRC-32C checksum. 68 /// \returns The result of adding operand \a __C to the CRC-32C checksum of 69 /// operand \a __D. 70 static __inline__ unsigned int __DEFAULT_FN_ATTRS 71 _mm_crc32_u32(unsigned int __C, unsigned int __D) 72 { 73 return __builtin_ia32_crc32si(__C, __D); 74 } 75 76 #ifdef __x86_64__ 77 /// Adds the unsigned integer operand to the CRC-32C checksum of the 78 /// unsigned 64-bit integer operand. 79 /// 80 /// \headerfile <x86intrin.h> 81 /// 82 /// This intrinsic corresponds to the <c> CRC32Q </c> instruction. 83 /// 84 /// \param __C 85 /// An unsigned integer operand to add to the CRC-32C checksum of operand 86 /// \a __D. 87 /// \param __D 88 /// An unsigned 64-bit integer operand used to compute the CRC-32C checksum. 89 /// \returns The result of adding operand \a __C to the CRC-32C checksum of 90 /// operand \a __D. 91 static __inline__ unsigned long long __DEFAULT_FN_ATTRS 92 _mm_crc32_u64(unsigned long long __C, unsigned long long __D) 93 { 94 return __builtin_ia32_crc32di(__C, __D); 95 } 96 #endif /* __x86_64__ */ 97 98 #undef __DEFAULT_FN_ATTRS 99 100 #endif /* __CRC32INTRIN_H */