gcc/testsuite/gcc.c-torture/compile/980408-1.c

   1 typedef struct _RunlengthPacket
   2 {
   3   unsigned short
   4     red,
   5     green,
   6     blue,
   7     length;
   8   unsigned short
   9     index;
  10 } RunlengthPacket;
  11 typedef struct _Image
  12 {
  13   int
  14     status,
  15     temporary;
  16   char
  17     filename[1664 ];
  18   long int
  19     filesize;
  20   int
  21     pipe;
  22   char
  23     magick[1664 ],
  24     *comments,
  25     *label,
  26     *text;
  27   unsigned int
  28     matte;
  29   unsigned int
  30     columns,
  31     rows,
  32     depth;
  33   unsigned int
  34     scene,
  35     number_scenes;
  36   char
  37     *montage,
  38     *directory;
  39   unsigned int
  40     colors;
  41   double
  42     gamma;
  43   float
  44     x_resolution,
  45     y_resolution;
  46   unsigned int
  47     mean_error_per_pixel;
  48   double
  49     normalized_mean_error,
  50     normalized_maximum_error;
  51   unsigned long
  52     total_colors;
  53   char
  54     *signature;
  55   unsigned int
  56     packets,
  57     runlength,
  58     packet_size;
  59   unsigned char
  60     *packed_pixels;
  61   long int
  62     magick_time;
  63   char
  64     magick_filename[1664 ];
  65   unsigned int
  66     magick_columns,
  67     magick_rows;
  68   char
  69     *geometry,
  70     *page;
  71   unsigned int
  72     dispose,
  73     delay,
  74     iterations;
  75   unsigned int
  76     orphan;
  77   struct _Image
  78     *previous,
  79     *list,
  80     *next;
  81 } Image;
  82   Image *MinifyImage(Image *image)
  83 {
  84   Image
  85     *minified_image;
  86   register RunlengthPacket
  87     *q,
  88     *s,
  89     *s0,
  90     *s1,
  91     *s2,
  92     *s3;
  93   register unsigned int
  94     x;
  95   unsigned int
  96     blue,
  97     green,
  98     red;
  99   unsigned long
 100     total_matte,
 101     total_blue,
 102     total_green,
 103     total_red;
 104   unsigned short
 105     index;
 106     for (x=0; x < (image->columns-1); x+=2)
 107     {
 108       total_red=0;
 109       total_green=0;
 110       total_blue=0;
 111       total_matte=0;
 112       s=s0;
 113       total_red+=( 3 )*(s->red); total_green+=( 3 )*(s->green); total_blue+=( 3 )*(s->blue); total_matte+=( 3 )*(s->index); s++; ; total_red+=( 7 )*(s->red); total_green+=( 7 )*(s->green); total_blue+=( 7 )*(s->blue); total_matte+=( 7 )*(s->index); s++; ;  total_red+=( 7 )*(s->red); total_green+=( 7 )*(s->green); total_blue+=( 7 )*(s->blue); total_matte+=( 7 )*(s->index); s++; ;  total_red+=( 3 )*(s->red); total_green+=( 3 )*(s->green); total_blue+=( 3 )*(s->blue); total_matte+=( 3 )*(s->index); s++; ;
 114       s=s1;
 115       total_red+=( 7 )*(s->red); total_green+=( 7 )*(s->green); total_blue+=( 7 )*(s->blue); total_matte+=( 7 )*(s->index); s++; ; total_red+=( 15 )*(s->red); total_green+=( 15 )*(s->green); total_blue+=( 15 )*(s->blue); total_matte+=( 15 )*(s->index); s++; ; total_red+=( 15 )*(s->red); total_green+=( 15 )*(s->green); total_blue+=( 15 )*(s->blue); total_matte+=( 15 )*(s->index); s++; ; total_red+=( 7 )*(s->red); total_green+=( 7 )*(s->green); total_blue+=( 7 )*(s->blue); total_matte+=( 7 )*(s->index); s++; ;
 116       s=s2;
 117       total_red+=( 7 )*(s->red); total_green+=( 7 )*(s->green); total_blue+=( 7 )*(s->blue); total_matte+=( 7 )*(s->index); s++; ; total_red+=( 15 )*(s->red); total_green+=( 15 )*(s->green); total_blue+=( 15 )*(s->blue); total_matte+=( 15 )*(s->index); s++; ; total_red+=( 15 )*(s->red); total_green+=( 15 )*(s->green); total_blue+=( 15 )*(s->blue); total_matte+=( 15 )*(s->index); s++; ; total_red+=( 7 )*(s->red); total_green+=( 7 )*(s->green); total_blue+=( 7 )*(s->blue); total_matte+=( 7 )*(s->index); s++; ;
 118       s=s3;
 119       total_red+=( 3 )*(s->red); total_green+=( 3 )*(s->green); total_blue+=( 3 )*(s->blue); total_matte+=( 3 )*(s->index); s++; ; total_red+=( 7 )*(s->red); total_green+=( 7 )*(s->green); total_blue+=( 7 )*(s->blue); total_matte+=( 7 )*(s->index); s++; ;  total_red+=( 7 )*(s->red); total_green+=( 7 )*(s->green); total_blue+=( 7 )*(s->blue); total_matte+=( 7 )*(s->index); s++; ;  total_red+=( 3 )*(s->red); total_green+=( 3 )*(s->green); total_blue+=( 3 )*(s->blue); total_matte+=( 3 )*(s->index); s++; ;
 120       red=(unsigned short) ((total_red+63) >> 7);
 121       green=(unsigned short) ((total_green+63) >> 7);
 122       blue=(unsigned short) ((total_blue+63) >> 7);
 123       index=(unsigned short) ((total_matte+63) >> 7);
 124       if ((red == q->red) && (green == q->green) && (blue == q->blue) &&
 125           (index == q->index) && ((int) q->length < 65535L ))
 126         q->length++;
 127     }
 128   return(minified_image);
 129 }