diff --git a/llvm/lib/Analysis/CGSCCPassManager.cpp b/llvm/lib/Analysis/CGSCCPassManager.cpp
index 62e3dfc..b325afb 100644
--- a/llvm/lib/Analysis/CGSCCPassManager.cpp
+++ b/llvm/lib/Analysis/CGSCCPassManager.cpp
@@ -75,7 +75,7 @@
     // If the CGSCC pass wasn't able to provide a valid updated SCC, the
     // current SCC may simply need to be skipped if invalid.
     if (UR.InvalidatedSCCs.count(C)) {
-      DEBUG(dbgs() << "Skipping invalidated root or island SCC!\n");
+      LLVM_DEBUG(dbgs() << "Skipping invalidated root or island SCC!\n");
       break;
     }
     // Check that we didn't miss any update scenario.
@@ -353,7 +353,8 @@
 
   // Add the current SCC to the worklist as its shape has changed.
   UR.CWorklist.insert(C);
-  DEBUG(dbgs() << "Enqueuing the existing SCC in the worklist:" << *C << "\n");
+  LLVM_DEBUG(dbgs() << "Enqueuing the existing SCC in the worklist:" << *C
+                    << "\n");
 
   SCC *OldC = C;
 
@@ -389,7 +390,7 @@
     assert(C != &NewC && "No need to re-visit the current SCC!");
     assert(OldC != &NewC && "Already handled the original SCC!");
     UR.CWorklist.insert(&NewC);
-    DEBUG(dbgs() << "Enqueuing a newly formed SCC:" << NewC << "\n");
+    LLVM_DEBUG(dbgs() << "Enqueuing a newly formed SCC:" << NewC << "\n");
 
     // Ensure new SCCs' function analyses are updated.
     if (NeedFAMProxy)
@@ -514,8 +515,8 @@
                           return false;
 
                         RC->removeOutgoingEdge(N, *TargetN);
-                        DEBUG(dbgs() << "Deleting outgoing edge from '" << N
-                                     << "' to '" << TargetN << "'\n");
+                        LLVM_DEBUG(dbgs() << "Deleting outgoing edge from '"
+                                          << N << "' to '" << TargetN << "'\n");
                         return true;
                       }),
       DeadTargets.end());
@@ -546,8 +547,8 @@
       assert(NewRC != RC && "Should not encounter the current RefSCC further "
                             "in the postorder list of new RefSCCs.");
       UR.RCWorklist.insert(NewRC);
-      DEBUG(dbgs() << "Enqueuing a new RefSCC in the update worklist: "
-                   << *NewRC << "\n");
+      LLVM_DEBUG(dbgs() << "Enqueuing a new RefSCC in the update worklist: "
+                        << *NewRC << "\n");
     }
   }
 
@@ -564,8 +565,8 @@
       assert(RC->isAncestorOf(TargetRC) &&
              "Cannot potentially form RefSCC cycles here!");
       RC->switchOutgoingEdgeToRef(N, *RefTarget);
-      DEBUG(dbgs() << "Switch outgoing call edge to a ref edge from '" << N
-                   << "' to '" << *RefTarget << "'\n");
+      LLVM_DEBUG(dbgs() << "Switch outgoing call edge to a ref edge from '" << N
+                        << "' to '" << *RefTarget << "'\n");
       continue;
     }
 
@@ -593,12 +594,12 @@
       assert(RC->isAncestorOf(TargetRC) &&
              "Cannot potentially form RefSCC cycles here!");
       RC->switchOutgoingEdgeToCall(N, *CallTarget);
-      DEBUG(dbgs() << "Switch outgoing ref edge to a call edge from '" << N
-                   << "' to '" << *CallTarget << "'\n");
+      LLVM_DEBUG(dbgs() << "Switch outgoing ref edge to a call edge from '" << N
+                        << "' to '" << *CallTarget << "'\n");
       continue;
     }
-    DEBUG(dbgs() << "Switch an internal ref edge to a call edge from '" << N
-                 << "' to '" << *CallTarget << "'\n");
+    LLVM_DEBUG(dbgs() << "Switch an internal ref edge to a call edge from '"
+                      << N << "' to '" << *CallTarget << "'\n");
 
     // Otherwise we are switching an internal ref edge to a call edge. This
     // may merge away some SCCs, and we add those to the UpdateResult. We also
@@ -661,14 +662,14 @@
       // post-order sequence, and may end up observing more precise context to
       // optimize the current SCC.
       UR.CWorklist.insert(C);
-      DEBUG(dbgs() << "Enqueuing the existing SCC in the worklist: " << *C
-                   << "\n");
+      LLVM_DEBUG(dbgs() << "Enqueuing the existing SCC in the worklist: " << *C
+                        << "\n");
       // Enqueue in reverse order as we pop off the back of the worklist.
       for (SCC &MovedC : llvm::reverse(make_range(RC->begin() + InitialSCCIndex,
                                                   RC->begin() + NewSCCIndex))) {
         UR.CWorklist.insert(&MovedC);
-        DEBUG(dbgs() << "Enqueuing a newly earlier in post-order SCC: "
-                     << MovedC << "\n");
+        LLVM_DEBUG(dbgs() << "Enqueuing a newly earlier in post-order SCC: "
+                          << MovedC << "\n");
       }
     }
   }