gcc/testsuite/gcc.c-torture/compile/941014-2.c

   1 /* { dg-additional-options "-std=gnu89" } */
   2
   3 void
   4 f (n, ppt, xrot)
   5 {
   6   int tileWidth;
   7   int nlwSrc;
   8   int srcx;
   9   int v3, v4;
  10   register unsigned long ca1, cx1, ca2, cx2;
  11   unsigned long *pSrcLine;
  12   register unsigned long *pDst;
  13   register unsigned long *pSrc;
  14   register unsigned long b, tmp;
  15   unsigned long tileEndMask;
  16   int v1, v2;
  17   int tileEndPart;
  18   int needFirst;
  19   tileEndPart = 0;
  20   v1 = tileEndPart << 5;
  21   v2 = 32 - v1;
  22   while (n--)
  23     {
  24       if ((srcx = (ppt - xrot) % tileWidth) < 0)
  25         if (needFirst)
  26           if (nlwSrc == 1)
  27             {
  28               tmp = b;
  29               if (tileEndPart)
  30                 b = (*pSrc & tileEndMask) | (*pSrcLine >> v1);
  31             }
  32       if (tileEndPart)
  33         b = (tmp << v1) | (b >> v2);
  34       if (v4 != 32)
  35         *pDst = (*pDst & ((tmp << v3) | (b >> v4) & ca1 ^ cx1)
  36                  ^ (((tmp << v3) | (b >> v4)) & ca2 ^ cx2));
  37       *pDst = *pDst & tmp;
  38     }
  39 }