gcc/testsuite/gcc.dg/vect/pr33597.c

   1 /* { dg-do compile } */
   2
   3 typedef unsigned char uint8_t;
   4 typedef unsigned short uint16_t;
   5
   6 void
   7 rgb15to24_C (const uint8_t * src, uint8_t * dst, long src_size)
   8 {
   9   const uint16_t *end;
  10   const uint16_t *s = (uint16_t *)src;
  11   uint8_t *d = (uint8_t *)dst;
  12
  13   end = s + src_size/2;
  14   while (s < end)
  15     {
  16       uint16_t bgr = *s++;
  17
  18       *d++ = (bgr&0x1F)<<3;
  19       *d++ = (bgr&0x3E0)>>2;
  20       *d++ = (bgr&0x7C00)>>7;
  21     }
  22 }
  23