25 lines
731 B
C
25 lines
731 B
C
/* { dg-do compile { target alpha*-*-* ia64*-*-* x86_64-*-* s390x-*-* } } */
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/* { dg-options "-O2" } */
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/* { dg-require-effective-target lp64 } */
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/* PR middle-end/40501 */
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/* This once failed due to the bswap pass missing to add the type
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casts of the signed argument and result to the proper unsigned
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types. */
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typedef long int int64_t;
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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) 0xff) << 56)) >> 56));
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}
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