Print debug message only if there are dead passes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52052 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/VMCore/PassManager.cpp b/lib/VMCore/PassManager.cpp
index cd7138cad13194154fa14527fd1116da8097907e..e1f8afe3b0ea069f77589a5e26e8ac05ab080731 100644 (file)
--- a/lib/VMCore/PassManager.cpp
+++ b/lib/VMCore/PassManager.cpp
@@ -665,9 +665,10 @@ void PMDataManager::removeDeadPasses(Pass *P, const char *Msg,
 
   TPM->collectLastUses(DeadPasses, P);
 
-  if (PassDebugging >= Details) {
+  if (PassDebugging >= Details && !DeadPasses.empty()) {
     cerr << " -*- " <<  P->getPassName();
-    cerr << " is the last users of following passes. Free them\n";
+    cerr << " is the last user of following pass instances.";
+    cerr << " Free these instances\n";
   }
 
   for (SmallVector<Pass *, 12>::iterator I = DeadPasses.begin(),