gcc/testsuite/gcc.dg/tree-ssa/forwprop-10.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O -fdump-tree-fre-details" } */
   3
   4 int b;
   5 unsigned a;
   6
   7 static inline int *g(void)
   8 {
   9   a = 1;
  10   return (int*)&a;
  11 }
  12 void test2(void)
  13 {
  14   b = *g();
  15 }
  16
  17 /* The indirect load should be replaced by a load from a and a
  18    conversion to int.  FRE should then be able to replace
  19    the rhs of the store to b by 1.  */
  20
  21 /* { dg-final { scan-tree-dump "Replaced\[^\\n\]*with 1" "fre" } } */
  22 /* { dg-final { cleanup-tree-dump "fre" } } */