commit ec6fa4f5d625482e33028c458a21c67eb9e3cedb
author Andreas Neustifter <astifter-llvm@gmx.at> Fri Dec 04 06:58:24 2009 +0000
committer Copybara-Service <copybara-worker@google.com> Fri Sep 25 04:29:58 2020 -0700
tree fb52e846e65694b26749798bf7fc4b381901cb26
parent 3af89b38b0271ec6b1a1b7a229b82fea0a6a2002

Added debug output for inherited passes that are invalidated.

llvm-svn: 90553
GitOrigin-RevId: 4665141ebdbb3a266651cd9ead022437008c64d8

lib/VMCore/PassManager.cpp

diff --git a/lib/VMCore/PassManager.cpp b/lib/VMCore/PassManager.cpp
index ae418a0..c07372c 100644
--- a/lib/VMCore/PassManager.cpp
+++ b/lib/VMCore/PassManager.cpp
@@ -738,9 +738,15 @@
       std::map<AnalysisID, Pass *>::iterator Info = I++;
       if (!dynamic_cast<ImmutablePass*>(Info->second) &&
           std::find(PreservedSet.begin(), PreservedSet.end(), Info->first) == 
-             PreservedSet.end())
+             PreservedSet.end()) {
         // Remove this analysis
+        if (PassDebugging >= Details) {
+          Pass *S = Info->second;
+          errs() << " -- '" <<  P->getPassName() << "' is not preserving '";
+          errs() << S->getPassName() << "'\n";
+        }
         InheritedAnalysis[Index]->erase(Info);
+      }
     }
   }
 }