gcc/testsuite/gcc.dg/pr37106-1.c

   1 /* PR c/37106 */
   2 /* { dg-do compile } */
   3 /* { dg-options "-O1" } */
   4 /* { dg-options "-O1 -fpic" { target fpic } } */
   5
   6 #define SIZE 256
   7 float a[SIZE], b[SIZE], c[SIZE];
   8
   9 void opt3 (void) __attribute__((__optimize__(3)));
  10
  11 void
  12 opt3 (void)
  13 {
  14   int i;
  15
  16   for (i = 0; i < SIZE; i++)
  17     a[i] = b[i] + c[i];
  18 }
  19
  20 void
  21 not_opt3 (void)
  22 {
  23   int i;
  24
  25   for (i = 0; i < SIZE; i++)
  26     a[i] = b[i] - c[i];
  27 }