gnu/dist/gcc4/gcc/testsuite/gcc.dg/loop-4.c

   1 /* PR optimization/11841 */
   2 /* Originator: Andrey Panov <panov@canopus.iacp.dvo.ru> */
   3 /* Reduced testcase by Volker Reichelt <reichelt@igpm.rwth-aachen.de> */
   4
   5 /* Verify that the (old) loop unroller doesn't wrongly mark a pseudo
   6    referenced in a note as local.  */
   7
   8 /* { dg-do run } */
   9 /* { dg-options "-O2 -funroll-loops" } */
  10
  11 int *a;
  12
  13 int main()
  14 {
  15   double d[6];
  16   int i, j;
  17
  18   for (i=0; i<4; ++i)
  19     for (j=0; j<3; ++j)
  20       d[i+j] = 0;
  21
  22   a = &i;
  23
  24   return 0;
  25 }