gcc/testsuite/gcc.c-torture/execute/restrict-1.c

   1 /*  PR rtl-optimization/16536
   2     Origin:  Jeremy Denise      <jeremy.denise@libertysurf.fr>
   3     Reduced: Wolfgang Bangerth  <bangerth@dealii.org>
   4              Volker Reichelt    <reichelt@igpm.rwth-aachen.de>  */
   5 /* { dg-options "-fgnu89-inline" } */
   6
   7 extern void abort ();
   8
   9 typedef struct
  10 {
  11   int i, dummy;
  12 } A;
  13
  14 inline A foo (const A* p, const A* q)
  15 {
  16   return (A){p->i+q->i};
  17 }
  18
  19 void bar (A* __restrict__ p)
  20 {
  21   *p=foo(p,p);
  22   if (p->i!=2)
  23     abort();
  24 }
  25
  26 int main ()
  27 {
  28   A a={1};
  29   bar(&a);
  30   return 0;
  31 }