[LLVMdev] DAGCompiler::MergeConsecutiveStores Question

[dag at cray.com]

In DAGCombiner::MergeConsecutiveStores, there is this check:

     if (Index->getAlignment() != St->getAlignment())
       break;

Apparently this check ensures that all of the stores have the same
alignment.  Why is that necessary?  This seems very overly restrictive
to me.

                            -David