llvm-project

13f38c97 - [LLVM][SelectionDAG] Align poison/undef binop folds with IR. (#149334)

[LLVM][SelectionDAG] Align poison/undef binop folds with IR. (#149334) The "at construction" binop folds in SelectionDAG::getNode() has different behaviour when compared to the equivalent LLVM IR. This PR makes the behaviour consistent while also extending the coverage to include signed/unsigned max/min operations.