gcc/testsuite/gcc.dg/tree-ssa/slsr-4.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O3 -fdump-tree-slsr -fdump-tree-optimized" } */
   3
   4 void foo (int);
   5
   6 int
   7 f (int i)
   8 {
   9   int x, y;
  10
  11   x = i * 4;
  12   y = x * 10;
  13   foo (y);
  14
  15   i = i + 5;
  16   x = i * 4;
  17   y = x * 10;
  18   foo (y);
  19
  20   i = i - 4;
  21   x = i * 4;
  22   y = x * 10;
  23   foo (y);
  24 }
  25
  26 /* { dg-final { scan-tree-dump-times "\\* 40" 1 "slsr" } } */
  27 /* { dg-final { scan-tree-dump-times "\\+ 200" 1 "slsr" } } */
  28 /* { dg-final { scan-tree-dump-times "\\- 160" 1 "slsr" } } */
  29 /* { dg-final { scan-tree-dump-times "\\* 40" 1 "optimized" } } */
  30 /* { dg-final { scan-tree-dump-times "\\+ 200" 1 "optimized" } } */
  31 /* { dg-final { scan-tree-dump-times "\\+ 40" 1 "optimized" } } */