gcc/testsuite/gcc.dg/vect/pr64829.c

   1 /* { dg-do compile } */
   2
   3 typedef unsigned char Uint8;
   4 typedef int Sint32;
   5 typedef unsigned int Uint32;
   6
   7 typedef union RMColorDataRef
   8 {
   9   Uint8* data8;
  10 } RMColorDataRef;
  11
  12 typedef struct RMColorData
  13 {
  14   Uint32 dataCount;
  15   RMColorDataRef dataRef;
  16 } RMColorData;
  17
  18 typedef struct RMColorTable
  19 {
  20   Uint8 dataCompsOut;
  21   RMColorDataRef dataRef;
  22 } RMColorTable;
  23
  24 int fail ( const RMColorData * pInColor,
  25            RMColorData * pOutColor,
  26            const RMColorTable * pColorTable )
  27 {
  28   Uint32 comp;
  29   Uint8 nCompOut;
  30
  31   Sint32 result;
  32
  33   Uint32 interpFrac1, interpFrac2, interpFrac3;
  34   Sint32 val0, val1, val2, val3;
  35
  36   Uint8 * pOut;
  37
  38   const Uint8 * pClutData;
  39   const Uint8 * pCornerPoint0;
  40
  41   Uint8 lastOut[((8) > (4) ? (8) : (4))];
  42
  43   pOut = pOutColor->dataRef.data8;
  44   pClutData = pColorTable->dataRef.data8;
  45
  46   nCompOut = pColorTable->dataCompsOut;
  47
  48   pCornerPoint0 = pClutData;
  49
  50   for (comp = 0; comp < nCompOut; comp++)
  51     {
  52       val0 = *pCornerPoint0++;
  53
  54       result = val0 << 4;
  55
  56       result += (val1 - val0) * interpFrac1;
  57       result += (val2 - val1) * interpFrac2;
  58       result += (val3 - val2) * interpFrac3;
  59
  60       *pOut++ = lastOut[comp] = (Uint8)(result >> 4);
  61     }
  62
  63   return (0);
  64 }
  65