27 lines
658 B
C
27 lines
658 B
C
/* { dg-do run } */
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typedef __INT64_TYPE__ int64_t;
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__attribute__((noinline)) int64_t
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swap64 (int64_t n)
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{
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return (((n & (((int64_t) 0xff) )) << 56) |
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((n & (((int64_t) 0xff) << 8)) << 40) |
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((n & (((int64_t) 0xff) << 16)) << 24) |
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((n & (((int64_t) 0xff) << 24)) << 8) |
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((n & (((int64_t) 0xff) << 32)) >> 8) |
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((n & (((int64_t) 0xff) << 40)) >> 24) |
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((n & (((int64_t) 0xff) << 48)) >> 40) |
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((n & ((int64_t)(0xffull << 56))) >> 56));
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}
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int main (void)
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{
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volatile int64_t n = 0x8000000000000000ll;
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if (swap64(n) != 0xffffffffffffff80ll)
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__builtin_abort ();
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return 0;
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}
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