gcc/testsuite/gcc.dg/tree-ssa/reassoc-19.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-Os -fdump-tree-optimized" } */
   3
   4 /* Slightly changed testcase from PR middle-end/40815.  */
   5 void bar(char*, char*, int);
   6 void foo(char* left, char* rite, int element)
   7 {
   8   while (left <= rite)
   9   {
  10     /* This should expand into
  11        _7 = (sizetype) element_6(D);
  12        _8 = -_7;
  13        rite_9 = rite_1 + _8;  */
  14     rite -= element;
  15     bar(left, rite, element);
  16   }
  17 }
  18
  19 /* { dg-final { scan-tree-dump-times "= \\\(sizetype\\\) element" 1 "optimized" } } */
  20 /* { dg-final { scan-tree-dump-times "= -" 1 "optimized" } } */
  21 /* { dg-final { scan-tree-dump-times " \\\+ " 1 "optimized" } } */