Change the binary operator data recursive evaluator to not stop at the first
non-constant value encountered.  This allows the evaluator to deduce that
expressions like (x < 5 || true) is equal to true.  Previously, it would visit
x and determined that the entire expression is could not evaluated to a
constant.

This fixes PR12318.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@153226 91177308-0d34-0410-b5e6-96231b3b80d8
2 files changed