gcc/testsuite/gcc.c-torture/compile/941014-3.c

   1 typedef unsigned char byte;
   2 typedef unsigned int uint;
   3 typedef unsigned long ulong;
   4 typedef ulong gs_char;
   5 typedef struct gs_show_enum_s gs_show_enum;
   6 typedef struct gs_font_s gs_font;
   7 typedef struct gx_font_stack_item_s {
   8   gs_font *font;
   9 } gx_font_stack_item;
  10 typedef struct gx_font_stack_s {
  11   gx_font_stack_item items[1 + 5 ];
  12 } gx_font_stack;
  13 struct gs_show_enum_s {
  14   gx_font_stack fstack;
  15 };
  16 typedef enum {
  17   ft_composite = 0,
  18 } font_type;
  19 struct gs_font_s {
  20   font_type FontType;
  21 };
  22 typedef enum {
  23   fmap_escape = 3,
  24   fmap_shift = 8
  25   } fmap_type;
  26 typedef struct gs_type0_data_s {
  27   fmap_type FMapType;
  28 } gs_type0_data;
  29 gs_type0_next_char(register gs_show_enum *penum)
  30 {
  31   const byte *p;
  32   int fdepth;
  33   gs_font *pfont;
  34   gs_type0_data *pdata;
  35   uint fidx;
  36   gs_char chr;
  37   for (; pfont->FontType == ft_composite; )
  38     {
  39       fmap_type fmt;
  40       switch ( fmt )
  41         {
  42           do {} while (0);
  43         rdown:
  44           continue;
  45         case fmap_shift:
  46           p++;
  47           do {} while (0);
  48           goto rdown;
  49         }
  50       break;
  51     }
  52  up:
  53   while ( fdepth > 0 )
  54     {
  55       switch ( pdata->FMapType )
  56         {
  57         default:
  58           continue;
  59         case fmap_escape:
  60           fidx = *++p;
  61           do {} while (0);
  62           if ( fidx == chr && fdepth > 1 )
  63             goto up;
  64         down:
  65           fdepth--;
  66           do {} while (0);
  67         }
  68       break;
  69     }
  70   while ( (pfont = penum->fstack.items[fdepth].font)->FontType == ft_composite )
  71     ;
  72 }