Added support to dataflow solver to (when requested) also record dataflow
values for the block-level expressions.
Modified 'LiveVariables' to provide the option to clients to record
liveness information for block-level expressions (using the above feature).
Modified 'DeadStores' to conform to the new interface of 'LiveVariables'.
Modified 'GRConstants' to compute liveness information for block-level
expressions.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@46137 91177308-0d34-0410-b5e6-96231b3b80d8
6 files changed