1  /* { dg-options "-mthumb -O2 -fno-reorder-blocks -fno-tree-dce" }  */
       2  /* { dg-require-effective-target arm_thumb2_ok } */
       3  /* { dg-final { scan-assembler-not "tbb" } } */
       4  /* { dg-final { scan-assembler-not "tbh" } } */
       5  
       6  #include <stdlib.h>
       7  
       8  int gbl;
       9  int foo (int *buf, int n)
      10  {
      11    int ctr = 0;
      12    int c;
      13    while (1)
      14      {
      15        c = buf[ctr++];
      16        switch (c)
      17          {
      18          case '\n':
      19            gbl++;
      20            break;
      21  
      22          case ' ': case '\t' : case '\f' : case '\r':
      23            break;
      24  
      25          case ';':
      26            do
      27              c = buf [ctr++];
      28            while (c != '\n' && c != -1);
      29            gbl++;
      30            break;
      31  
      32          case '/':
      33            {
      34              int prevc;
      35              c = buf [ctr++];
      36              if (c != '*')
      37                abort ();
      38  
      39              prevc = 0;
      40              while ((c = buf[ctr++]) && c != -1)
      41                {
      42                  if (c == '\n')
      43                    gbl++;
      44                }
      45              break;
      46            }
      47          default:
      48            return c;
      49          }
      50      }
      51  }