gcc/testsuite/gcc.target/i386/hle-sub-acq-1.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-mhle" } */
   3 /* { dg-final { scan-assembler "lock;?\[ \n\t\]+\(xacquire\|\.byte\[ \t\]+0xf2\)\[ \t\n\]+sub" } } */
   4
   5 void
   6 hle_sub (int *p, int v)
   7 {
   8   __atomic_fetch_sub (p, v, __ATOMIC_ACQUIRE | __ATOMIC_HLE_ACQUIRE);
   9 }