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111
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1 /* { dg-do compile { target alpha*-*-* ia64*-*-* i?86-*-* x86_64-*-* s390x-*-* } } */
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2 /* { dg-options "-O2 -Wno-shift-overflow" } */
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3 /* { dg-require-effective-target lp64 } */
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4
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5 /* PR middle-end/40501 */
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6
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7 /* This once failed due to the bswap pass missing to add the type
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8 casts of the signed argument and result to the proper unsigned
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9 types. */
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10
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11 typedef long int int64_t;
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12
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13 int64_t
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14 swap64 (int64_t n)
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15 {
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16 return (((n & (((int64_t) 0xff) )) << 56) |
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17 ((n & (((int64_t) 0xff) << 8)) << 40) |
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18 ((n & (((int64_t) 0xff) << 16)) << 24) |
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19 ((n & (((int64_t) 0xff) << 24)) << 8) |
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20 ((n & (((int64_t) 0xff) << 32)) >> 8) |
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21 ((n & (((int64_t) 0xff) << 40)) >> 24) |
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22 ((n & (((int64_t) 0xff) << 48)) >> 40) |
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23 ((n & (((int64_t) 0xff) << 56)) >> 56));
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24 }
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