1  /* A test for various conversions of chrecs.  */
       2  
       3  /* { dg-do compile { target i?86-*-* x86_64-*-* } } */
       4  /* { dg-options "-O2 -fdump-tree-optimized" } */
       5  
       6  void blas (signed char xxx);
       7  void blau (unsigned char xxx);
       8  
       9  void tst(void)
      10  {
      11    unsigned i;
      12  
      13    for (i = 0; i < 129; i++) /* This truncation to char has to be preserved.  */
      14      blas ((signed char) i);
      15    for (i = 0; i < 128; i++) /* This one is not necessary, VRP eliminates it.  */
      16      blas ((signed char) i);
      17    for (i = 0; i < 127; i++) /* This one is not necessary, IVOPTS eliminates it.  */
      18      blas ((signed char) i);
      19    for (i = 0; i < 256; i++) /* This one is not necessary, VRP eliminates it.  */
      20      blau ((unsigned char) i);
      21    for (i = 0; i < 257; i++) /* This one is necessary.  */
      22      blau ((unsigned char) i);
      23  }
      24  
      25  /* { dg-final { scan-tree-dump-times "& 255" 1 "optimized" } } */
      26  /* { dg-final { scan-tree-dump-times "= \\(signed char\\)" 1 "optimized" } } */
      27