gcc/testsuite/c-c++-common/ubsan/shift-2.c

   1 /* { dg-do run } */
   2 /* { dg-options "-fsanitize=shift -w" } */
   3
   4 int
   5 main (void)
   6 {
   7   int a = 1;
   8   volatile int b = -5;
   9   long long int c = -6;
  10
  11   a << -3;
  12   1 << -4;
  13   1 << b;
  14   a << c;
  15   a << (b + c);
  16
  17   return 0;
  18 }
  19 /* { dg-output "shift exponent -3 is negative(\n|\r\n|\r)" } */
  20 /* { dg-output "\[^\n\r]*shift exponent -4 is negative(\n|\r\n|\r)" } */
  21 /* { dg-output "\[^\n\r]*shift exponent -5 is negative(\n|\r\n|\r)" } */
  22 /* { dg-output "\[^\n\r]*shift exponent -6 is negative(\n|\r\n|\r)" } */
  23 /* { dg-output "\[^\n\r]*shift exponent -11 is negative(\n|\r\n|\r)" } */