gcc/testsuite/gcc.dg/tree-ssa/forwprop-11.c

   1 /* { dg-do compile } */
   2 /* { dg-require-effective-target int32plus } */
   3 /* { dg-options "-O -fdump-tree-forwprop1" } */
   4
   5 int f(int *p, int n)
   6 {
   7   int (*a)[n] = (int (*)[n])p;
   8   int *q = &(*a)[0];
   9   return q[1];
  10 }
  11
  12 int g(int *p, int n)
  13 {
  14   int (*a)[n] = (int (*)[n])p;
  15   int *q = &(*a)[2];
  16   return q[-1];
  17 }
  18
  19 /* { dg-final { scan-tree-dump-times "= MEM\\\[\\\(int \\\*\\\)\[ap\]_.. \\\+ 4B\\\];" 2 "forwprop1" } } */
  20 /* { dg-final { cleanup-tree-dump "forwprop1" } } */