gcc/testsuite/gcc.dg/tree-ssa/pr49671-1.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O2 -fdump-tree-optimized" }  */
   3 volatile int t;
   4 static inline int cvmx_atomic_get32(volatile int *ptr)
   5 {
   6     return *ptr;
   7 }
   8 void f(void)
   9 {
  10   while (!cvmx_atomic_get32(&t))
  11     ;
  12 }
  13
  14 /* { dg-final { scan-tree-dump "\{v\}" "optimized" } } */
  15
  16