| 1 | //===-- bswapdi2.c - Implement __bswapdi2 ---------------------------------===// |
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| 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 | // This file implements __bswapdi2 for the compiler_rt library. |
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| 10 | // |
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| 11 | //===----------------------------------------------------------------------===// |
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| 12 | |
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| 13 | #include "int_lib.h" |
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| 14 | |
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| 15 | COMPILER_RT_ABI uint64_t __bswapdi2(uint64_t u) { |
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| 16 | return ( |
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| 17 | (((u)&0xff00000000000000ULL) >> 56) | |
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| 18 | (((u)&0x00ff000000000000ULL) >> 40) | |
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| 19 | (((u)&0x0000ff0000000000ULL) >> 24) | |
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| 20 | (((u)&0x000000ff00000000ULL) >> 8) | |
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| 21 | (((u)&0x00000000ff000000ULL) << 8) | |
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| 22 | (((u)&0x0000000000ff0000ULL) << 24) | |
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| 23 | (((u)&0x000000000000ff00ULL) << 40) | |
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| 24 | (((u)&0x00000000000000ffULL) << 56)); |
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| 25 | } |
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| 26 | |
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