gcc/testsuite/gcc.target/i386/pr45352-2.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O1 -mtune=amdfam10 -fexpensive-optimizations -fgcse -foptimize-register-move -freorder-blocks -fschedule-insns2 -funswitch-loops -fgcse-las -fselective-scheduling2 -fsel-sched-pipelining -funroll-all-loops" } */
   3
   4 typedef char uint8_t;
   5 typedef int uint32_t;
   6 typedef int vo_frame_t;
   7 __extension__ typedef __SIZE_TYPE__ size_t;
   8
   9 struct vo_frame_s
  10 {
  11     uint8_t base[3];
  12   int pitches[3];};
  13 typedef struct
  14 {
  15 void
  16     (*proc_macro_block)
  17     (void);
  18 }
  19 xine_xvmc_t;
  20 typedef struct
  21 {
  22   uint8_t ref[2][3];
  23 int pmv;
  24 }
  25 motion_t;
  26 typedef struct
  27 {
  28   uint32_t bitstream_buf;
  29   int bitstream_bits;
  30     uint8_t * bitstream_ptr;
  31     uint8_t dest[3];
  32   int pitches[3];
  33   int offset;
  34     motion_t b_motion;
  35     motion_t f_motion;
  36   int v_offset;
  37   int coded_picture_width;
  38   int picture_structure;
  39 struct vo_frame_s *current_frame;}
  40 picture_t;
  41 typedef struct
  42 {
  43 int xvmc_last_slice_code;}
  44 mpeg2dec_accel_t;
  45 static int bitstream_init (picture_t * picture, void *start)
  46 {
  47   picture->bitstream_ptr = start;
  48   return (int) (size_t) start;
  49 }
  50 static void slice_xvmc_init (picture_t * picture, int code)
  51 {
  52   int offset;
  53   struct vo_frame_s *forward_reference_frame;
  54   offset = picture->picture_structure == 2;
  55   picture->pitches[0] = picture->current_frame->pitches[0];
  56   picture->pitches[1] = picture->current_frame->pitches[1];
  57   if (picture)
  58     picture->f_motion.ref
  59       [0]
  60       [0]
  61       = (char) (size_t) (forward_reference_frame->base + (offset ? picture->pitches[0] : 0));
  62   picture->f_motion.ref[0][1] = (offset);
  63   if (picture->picture_structure)
  64       picture->pitches[0] <<= picture->pitches[1] <<= 1;
  65   offset = 0;
  66   while (1)
  67     {
  68       if (picture->bitstream_buf >= 0x08000000)
  69           break;
  70       switch (picture->bitstream_buf >> 12)
  71         {
  72         case 8:
  73           offset += 33;
  74                 picture->bitstream_buf
  75                   |=
  76                   picture->bitstream_ptr[1] << picture->bitstream_bits;
  77         }
  78     }
  79   picture->offset = (offset);
  80   while (picture->offset - picture->coded_picture_width >= 0)
  81     {
  82       picture->offset -= picture->coded_picture_width;
  83       if (picture->current_frame)
  84         {
  85           picture->dest[0] += picture->pitches[0];
  86           picture->dest[1] += picture->pitches[1];
  87         }
  88       picture->v_offset += 16;
  89     }
  90 }
  91
  92 void
  93 mpeg2_xvmc_slice
  94   (mpeg2dec_accel_t * accel, picture_t * picture, int code, uint8_t buffer,int mba_inc)
  95 {
  96   xine_xvmc_t * xvmc = (xine_xvmc_t *) (size_t) bitstream_init (picture, (void *) (size_t) buffer);
  97   slice_xvmc_init (picture, code);
  98     while (1)
  99       {
 100         if (picture)
 101             break;
 102         switch (picture->bitstream_buf)
 103           {
 104           case 8:
 105             mba_inc += accel->xvmc_last_slice_code = code;
 106                   xvmc->proc_macro_block   ();
 107             while (mba_inc)
 108               ;
 109           }
 110       }
 111 }