Make the representation of AliasSets explicitly differentiate
authorDan Gohman <gohman@apple.com>
Mon, 18 Oct 2010 23:31:47 +0000 (23:31 +0000)
committerDan Gohman <gohman@apple.com>
Mon, 18 Oct 2010 23:31:47 +0000 (23:31 +0000)
commiteee5400442e0812cb375ed5e17595a62f9240b80
tree6de7757d83b59214c6b3670305520c45b329766f
parent1be4ab681e086ec83e96d543d37e3474ef400282
Make the representation of AliasSets explicitly differentiate
between "not known yet" and "known no tbaa info" so that it
can merge them properly.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116767 91177308-0d34-0410-b5e6-96231b3b80d8
include/llvm/Analysis/AliasSetTracker.h
lib/Analysis/AliasSetTracker.cpp