[LLVMdev] A question about alias analysis

[夏一民]

Thank you, Chris. The following is my comprehension about the AliasSetTracker,
please correct me.

1. A aliasset "as" represents a memory object, and all pointer "p" in "as" 
represent values with the type of pointer that may/must point to the memory 
object "as".

2. If a aliasset is "forwarding", it has been merged to another aliasset and 
I should ignore it.

-Xia