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References: <bug-33953-5606@http.gcc.gnu.org/bugzilla/>
Subject: [Bug tree-optimization/33953] [4.3 regression] internal compiler error: vector VEC(tree,base) index domain error, in vectorizable_operation at tree-vect-transform.c:4017
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From: "ubizjak at gmail dot com" <gcc-bugzilla@gcc.gnu.org>
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------- Comment #3 from ubizjak at gmail dot com  2007-10-31 10:31 -------
Smaller testcase:

--cut here--
void
blockmove_NtoN_blend_noremap32 (const unsigned int *srcdata, int srcwidth,
                                int srcheight, int srcmodulo,
                                unsigned int *dstdata, int dstmodulo,
                                int srcshift)
{
  unsigned int *end;
  srcmodulo -= srcwidth;
  dstmodulo -= srcwidth;
  while (srcheight)
    {
      end = dstdata + srcwidth;
      while (dstdata <= end - 8)
        {
          dstdata[0] |= srcdata[0] << srcshift;
          dstdata[1] |= srcdata[1] << srcshift;
          dstdata[2] |= srcdata[2] << srcshift;
          dstdata[3] |= srcdata[3] << srcshift;
          dstdata[4] |= srcdata[4] << srcshift;
          dstdata[5] |= srcdata[5] << srcshift;
          dstdata[6] |= srcdata[6] << srcshift;
          dstdata[7] |= srcdata[7] << srcshift;
          dstdata += 8;
          srcdata += 8;
        }
      while (dstdata < end)
        *(dstdata++) |= *(srcdata++) << srcshift;
      srcdata += srcmodulo;
      dstdata += dstmodulo;
      srcheight--;
    }
}
--cut here--

Confirmed on x86_64 and i686-sse2 with -O2 -ftree-vectorize.


-- 

ubizjak at gmail dot com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
     Ever Confirmed|0                           |1
   Last reconfirmed|0000-00-00 00:00:00         |2007-10-31 10:31:46
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33953