Restore change accidentally reverted in merge

Restores change from 189d5da

Author: clesmian

clang/lib/CodeGen/CGStmt.cpp

@@ -1234,7 +1234,7 @@ void CodeGenFunction::EmitDoStmt(const DoStmt &S,
   // As long as the condition is true, iterate the loop.
   if (EmitBoolCondBranch) {
     uint64_t BackedgeCount = getProfileCount(S.getBody()) - ParentCount;
-    Builder.CreateCondBr(
+    auto *I = Builder.CreateCondBr(
         BoolCondVal, LoopBody, LoopFalse,
         createProfileWeightsForLoop(S.getCond(), BackedgeCount));