30 lines
893 B
C
30 lines
893 B
C
/* { dg-do compile } */
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/* { dg-require-effective-target fpic } */
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/* { dg-options "-O2 -fPIC" } */
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typedef unsigned int size_t;
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char *
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__mempcpy_by2 (char *__dest, __const char *__src, size_t __srclen)
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{
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register char *__tmp = __dest;
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register unsigned long int __d0, __d1;
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__asm__ __volatile__
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("shrl $1,%3\n\t"
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"jz 2f\n"
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"1:\n\t"
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"movl (%2),%0\n\t"
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"leal 4(%2),%2\n\t"
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"movl %0,(%1)\n\t"
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"leal 4(%1),%1\n\t"
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"decl %3\n\t"
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"jnz 1b\n"
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"2:\n\t"
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"movw (%2),%w0\n\t"
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"movw %w0,(%1)"
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: "=&q" (__d0), "=r" (__tmp), "=&r" (__src), "=&r" (__d1),
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"=m" ( *(struct { __extension__ char __x[__srclen]; } *)__dest)
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: "1" (__tmp), "2" (__src), "3" (__srclen / 2),
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"m" ( *(struct { __extension__ char __x[__srclen]; } *)__src)
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: "cc");
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return __tmp + 2;
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}
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