| /* { dg-do compile } */ |
| /* { dg-require-effective-target fpic } */ |
| /* { dg-require-effective-target ia32 } */ |
| /* { dg-options "-O2 -fPIC" } */ |
| typedef unsigned int size_t; |
| char * |
| __mempcpy_by2 (char *__dest, __const char *__src, size_t __srclen) |
| { |
| register char *__tmp = __dest; |
| register unsigned long int __d0, __d1; |
| __asm__ __volatile__ |
| ( |
| "shrl $1,%3\n\t" |
| "jz 2f\n" |
| "1:\n\t" |
| "movl (%2),%0\n\t" |
| "leal 4(%2),%2\n\t" |
| "movl %0,(%1)\n\t" |
| "leal 4(%1),%1\n\t" |
| "decl %3\n\t" |
| "jnz 1b\n" |
| "2:\n\t" |
| "movw (%2),%w0\n\t" |
| "movw %w0,(%1)" |
| : "=&q" (__d0), "=r" (__tmp), "=&r" (__src), "=&r" (__d1), |
| "=m" ( *(struct { __extension__ char __x[__srclen]; } *)__dest) |
| : "1" (__tmp), "2" (__src), "3" (__srclen / 2), |
| "m" ( *(struct { __extension__ char __x[__srclen]; } *)__src) |
| : "cc"); |
| return __tmp + 2; |
| } |
