Added some skeleton code for performing "assume" on symbols: e.g. assume($0 != 0).
This action will add constraints to the possible values of a symbol.
Still needs to be debugged.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@46789 91177308-0d34-0410-b5e6-96231b3b80d8
4 files changed