gcc/testsuite/gcc.dg/pr32573.c

   1 /* PR tree-optimization/32573 */
   2 /* { dg-do compile } */
   3 /* { dg-options "-O3" } */
   4
   5 long long bar (void *);
   6
   7 int
   8 foo (void *x, long long *y)
   9 {
  10   char a[256];
  11   int i = 0;
  12   long long b;
  13   int c;
  14   int d = 0;
  15   int e = 0;
  16   unsigned f = 0;
  17   b = bar (x);
  18   c = (unsigned) b;
  19   while (d < b && d < 65557)
  20     {
  21       f = *(unsigned *) &a[0];
  22       for (i = c - 4; i > 0; i--)
  23         if (a[i + 0] == 0x50
  24             && a[i + 1] == 0x4B
  25             && a[i + 3] == 0x06)
  26           {
  27             e = 1;
  28             break;
  29           }
  30     }
  31   return !e;
  32 }