gcc/testsuite/gcc.c-torture/execute/20020503-1.c

   1 /* PR 6534 */
   2 /* GCSE unified the two i<0 tests, but if-conversion to ui=abs(i)
   3    insertted the code at the wrong place corrupting the i<0 test.  */
   4
   5 void abort (void);
   6 static char *
   7 inttostr (long i, char buf[128])
   8 {
   9   unsigned long ui = i;
  10   char *p = buf + 127;
  11   *p = '\0';
  12   if (i < 0)
  13     ui = -ui;
  14   do
  15     *--p = '0' + ui % 10;
  16   while ((ui /= 10) != 0);
  17   if (i < 0)
  18     *--p = '-';
  19   return p;
  20 }
  21
  22 int
  23 main ()
  24 {
  25   char buf[128], *p;
  26
  27   p = inttostr (-1, buf);
  28   if (*p != '-')
  29     abort ();
  30   return 0;
  31 }