gcc/testsuite/gcc.dg/tree-ssa/alias-6.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O2 -fdump-tree-optimized" } */
   3
   4 struct param { int *a; };
   5 void foo(struct param *p);
   6 int bar(void)
   7 {
   8   int a[2];
   9   struct param p;
  10   a[0] = 1;
  11   a[1] = 1;
  12   p.a = &a[0];
  13   foo(&p);
  14   return a[0] + *p.a;
  15 }
  16
  17 /* We need to have both: a load from "a[0]" and a load from "*p.a",
  18    the latter is an ssa temporary.  */
  19 /* { dg-final { scan-tree-dump "= a.0.;" "optimized" } } */
  20 /* { dg-final { scan-tree-dump "= \\*\[^\r\n\]*_.;" "optimized" } } */