sdcc/support/regression/tests/gcc-torture-execute-20000605-1.c

   1 /*
   2    20000605-1.c from the execute part of the gcc torture tests.
   3  */
   4
   5 #include <testfwk.h>
   6
   7 #ifdef __SDCC
   8 #pragma std_c99
   9 #endif
  10
  11 typedef struct _RenderInfo RenderInfo;
  12 struct _RenderInfo
  13 {
  14     int y;
  15     float scaley;
  16     int src_y;
  17 };
  18
  19 static void bar(void) { }
  20
  21 #if !defined(__SDCC_pdk14) && !defined(__SDCC_pdk15) // Lack of memory
  22 static int
  23 render_image_rgb_a (RenderInfo * info)
  24 {
  25   int y, ye;
  26   float error;
  27   float step;
  28
  29   y = info->y;
  30   ye = 256;
  31
  32   step = 1.0 / info->scaley;
  33
  34   error = y * step;
  35   error -= ((int) error) - step;
  36
  37   for (; y < ye; y++) {
  38       if (error >= 1.0) {
  39           info->src_y += (int) error;
  40           error -= (int) error;
  41           bar();
  42       }
  43       error += step;
  44   }
  45   return info->src_y;
  46 }
  47 #endif
  48
  49 void
  50 testTortureExecute (void)
  51 {
  52 #if !defined(__SDCC_pdk14) && !defined(__SDCC_pdk15) // Lack of memory
  53     RenderInfo info;
  54
  55     info.y = 0;
  56     info.src_y = 0;
  57     info.scaley = 1.0;
  58
  59     if (render_image_rgb_a(&info) != 256)
  60        ASSERT (0);
  61     return;
  62 #endif
  63 }
  64