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| Rev | Author | Line No. | Line |
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| 14 | pmbaty | 1 | /*===---- crc32intrin.h - SSE4.2 Accumulate CRC32 intrinsics ---------------=== |
| 2 | * |
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| 3 | * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
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| 4 | * See https://llvm.org/LICENSE.txt for license information. |
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| 5 | * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
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| 6 | * |
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| 7 | *===-----------------------------------------------------------------------=== |
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| 8 | */ |
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| 9 | |||
| 10 | #ifndef __CRC32INTRIN_H |
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| 11 | #define __CRC32INTRIN_H |
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| 12 | |||
| 13 | #define __DEFAULT_FN_ATTRS \ |
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| 14 | __attribute__((__always_inline__, __nodebug__, __target__("crc32"))) |
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| 15 | |||
| 16 | /// Adds the unsigned integer operand to the CRC-32C checksum of the |
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| 17 | /// unsigned char operand. |
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| 18 | /// |
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| 19 | /// \headerfile <x86intrin.h> |
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| 20 | /// |
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| 21 | /// This intrinsic corresponds to the <c> CRC32B </c> instruction. |
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| 22 | /// |
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| 23 | /// \param __C |
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| 24 | /// An unsigned integer operand to add to the CRC-32C checksum of operand |
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| 25 | /// \a __D. |
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| 26 | /// \param __D |
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| 27 | /// An unsigned 8-bit integer operand used to compute the CRC-32C checksum. |
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| 28 | /// \returns The result of adding operand \a __C to the CRC-32C checksum of |
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| 29 | /// operand \a __D. |
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| 30 | static __inline__ unsigned int __DEFAULT_FN_ATTRS |
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| 31 | _mm_crc32_u8(unsigned int __C, unsigned char __D) |
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| 32 | { |
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| 33 | return __builtin_ia32_crc32qi(__C, __D); |
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| 34 | } |
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| 35 | |||
| 36 | /// Adds the unsigned integer operand to the CRC-32C checksum of the |
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| 37 | /// unsigned short operand. |
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| 38 | /// |
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| 39 | /// \headerfile <x86intrin.h> |
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| 40 | /// |
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| 41 | /// This intrinsic corresponds to the <c> CRC32W </c> instruction. |
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| 42 | /// |
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| 43 | /// \param __C |
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| 44 | /// An unsigned integer operand to add to the CRC-32C checksum of operand |
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| 45 | /// \a __D. |
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| 46 | /// \param __D |
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| 47 | /// An unsigned 16-bit integer operand used to compute the CRC-32C checksum. |
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| 48 | /// \returns The result of adding operand \a __C to the CRC-32C checksum of |
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| 49 | /// operand \a __D. |
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| 50 | static __inline__ unsigned int __DEFAULT_FN_ATTRS |
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| 51 | _mm_crc32_u16(unsigned int __C, unsigned short __D) |
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| 52 | { |
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| 53 | return __builtin_ia32_crc32hi(__C, __D); |
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| 54 | } |
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| 55 | |||
| 56 | /// Adds the first unsigned integer operand to the CRC-32C checksum of |
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| 57 | /// the second unsigned integer operand. |
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| 58 | /// |
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| 59 | /// \headerfile <x86intrin.h> |
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| 60 | /// |
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| 61 | /// This intrinsic corresponds to the <c> CRC32L </c> instruction. |
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| 62 | /// |
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| 63 | /// \param __C |
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| 64 | /// An unsigned integer operand to add to the CRC-32C checksum of operand |
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| 65 | /// \a __D. |
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| 66 | /// \param __D |
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| 67 | /// An unsigned 32-bit integer operand used to compute the CRC-32C checksum. |
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| 68 | /// \returns The result of adding operand \a __C to the CRC-32C checksum of |
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| 69 | /// operand \a __D. |
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| 70 | static __inline__ unsigned int __DEFAULT_FN_ATTRS |
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| 71 | _mm_crc32_u32(unsigned int __C, unsigned int __D) |
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| 72 | { |
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| 73 | return __builtin_ia32_crc32si(__C, __D); |
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| 74 | } |
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| 75 | |||
| 76 | #ifdef __x86_64__ |
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| 77 | /// Adds the unsigned integer operand to the CRC-32C checksum of the |
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| 78 | /// unsigned 64-bit integer operand. |
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| 79 | /// |
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| 80 | /// \headerfile <x86intrin.h> |
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| 81 | /// |
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| 82 | /// This intrinsic corresponds to the <c> CRC32Q </c> instruction. |
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| 83 | /// |
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| 84 | /// \param __C |
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| 85 | /// An unsigned integer operand to add to the CRC-32C checksum of operand |
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| 86 | /// \a __D. |
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| 87 | /// \param __D |
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| 88 | /// An unsigned 64-bit integer operand used to compute the CRC-32C checksum. |
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| 89 | /// \returns The result of adding operand \a __C to the CRC-32C checksum of |
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| 90 | /// operand \a __D. |
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| 91 | static __inline__ unsigned long long __DEFAULT_FN_ATTRS |
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| 92 | _mm_crc32_u64(unsigned long long __C, unsigned long long __D) |
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| 93 | { |
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| 94 | return __builtin_ia32_crc32di(__C, __D); |
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| 95 | } |
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| 96 | #endif /* __x86_64__ */ |
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| 97 | |||
| 98 | #undef __DEFAULT_FN_ATTRS |
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| 99 | |||
| 100 | #endif /* __CRC32INTRIN_H */ |