gcc/testsuite/gcc.dg/tree-ssa/loop-35.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O2 -fdump-tree-lim-details" } */
   3
   4 int x;
   5 int a[100];
   6
   7 struct a
   8 {
   9   int X;
  10   int Y;
  11 };
  12
  13 struct a arr[100];
  14
  15 void test1(int b)
  16 {
  17   unsigned i;
  18
  19   /* And here.  */
  20   for (i = 0; i < 100; i++)
  21     {
  22       arr[b+8].X += i;
  23       arr[b+9].X += i;
  24     }
  25 }
  26
  27 void test2(struct a *A, int b)
  28 {
  29   unsigned i;
  30
  31   /* And here as well.  */
  32   for (i = 0; i < 100; i++)
  33     {
  34       A[b].X += i;
  35       A[b+1].Y += i;
  36     }
  37 }
  38
  39 void test3(unsigned long b)
  40 {
  41   unsigned i;
  42
  43   /* And here.  */
  44   for (i = 0; i < 100; i++)
  45     {
  46       arr[b+8].X += i;
  47       arr[b+9].X += i;
  48     }
  49 }
  50
  51 void test4(struct a *A, unsigned long b)
  52 {
  53   unsigned i;
  54
  55   /* And here as well.  */
  56   for (i = 0; i < 100; i++)
  57     {
  58       A[b].X += i;
  59       A[b+1].Y += i;
  60     }
  61 }
  62
  63 /* { dg-final { scan-tree-dump-times "Executing store motion of" 8 "lim" } } */
  64 /* { dg-final { cleanup-tree-dump "lim" } } */