gcc/testsuite/gcc.dg/tree-ssa/ssa-dom-cse-7.c

   1 /* Test normalization of MEM_REF expressions in dom.  */
   2 /* { dg-do compile } */
   3 /* { dg-options "-O3 -fno-tree-fre -fno-tree-pre -fdump-tree-optimized" } */
   4
   5 typedef struct {
   6   int a[8];
   7 } foo;
   8
   9 foo f;
  10
  11 int
  12 test ()
  13 {
  14   foo g;
  15   g.a[0] = 1; g.a[1] = 2; g.a[2] = 3; g.a[3] = 4;
  16   g.a[4] = 5; g.a[5] = 6; g.a[6] = 7; g.a[7] = 8;
  17   f=g;
  18   return f.a[2];
  19 }
  20
  21 /* { dg-final { scan-tree-dump-times "return 3;" 1 "optimized" } } */