Add a comment that describes tryEvaluate.  Make tryEvaluate fold
__builtin_constant_p properly, and add some scaffolding for
FloatExprEvaluator to eventually handle huge_val and inf.

llvm-svn: 57152
3 files changed
tree: a3761c38834bded809bdec47900c4e2b0fba3ce2
  1. clang/
  2. llvm/