[llvm] [InstCombine] Re-queue users of phi when nsw/nuw flags of add are inferred (PR #113933)

[Yingwei Zheng via llvm-commits]

================
@@ -1868,6 +1868,13 @@ Instruction *InstCombinerImpl::visitAdd(BinaryOperator &I) {
   if (Instruction *Res = foldBinOpOfSelectAndCastOfSelectCondition(I))
     return Res;
 
+  if (Changed) {
----------------
dtcxzyw wrote:

Done.

https://github.com/llvm/llvm-project/pull/113933