gcc/testsuite/gcc.dg/torture/pr77937-1.c

   1 /* { dg-do compile } */
   2 /* { dg-do options "-O3 -march=amdfam10" { target { x86_64-*-* } } } */
   3
   4 int *a;
   5 int b, c, d;
   6 void fn1(char *p1, int p2) {
   7   int x;
   8   while (1) {
   9     x = 0;
  10     for (; x < 8; x++)
  11       p1[0] = -a[0] * d + p1[0] * c + 1 >> b >> 1;
  12     p1 += p2;
  13   }
  14 }