gcc/testsuite/c-c++-common/pr65830.c

   1 /* PR c/65830 */
   2 /* { dg-do compile } */
   3 /* { dg-options "-O -Wno-shift-count-negative -Wno-shift-count-overflow" } */
   4
   5 int
   6 foo (int x)
   7 {
   8   const int a = sizeof (int) * __CHAR_BIT__;
   9   const int b = -7;
  10   int c = 0;
  11   c += x << a;  /* { dg-bogus "left shift count >= width of type" } */
  12   c += x << b;  /* { dg-bogus "left shift count is negative" } */
  13   c += x >> a;  /* { dg-bogus "right shift count >= width of type" } */
  14   c += x >> b;  /* { dg-bogus "right shift count is negative" } */
  15   return c;
  16 }