gcc-4.9/gcc/testsuite/gcc.target/arc/mlock.c


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/* { dg-do compile } */
/* { dg-options "-mlock" } */
/* { dg-do assemble } */

int f (void *p)
{
  int i;

  __asm__("llock %0, [%1]\n\t"
	  "scond %0, [%1]" : "=&r"(i) : "r"(p));
  return i;
}