gcc/testsuite/gcc.dg/store_merging_17.c

   1 /* PR tree-optimization/83241 */
   2 /* { dg-do compile { target store_merge } } */
   3 /* { dg-options "-O2" } */
   4
   5 struct S { int a; short b[32]; } e;
   6 struct T { volatile int c; int d; } f;
   7
   8 void
   9 foo ()
  10 {
  11   struct T g = f;
  12   e.b[0] = 6;
  13   e.b[1] = 6;
  14   e.b[4] = g.d;
  15   e.b[5] = g.d >> 16;
  16   e.a = 1;
  17 }