Add facility to dump pass manager structure

to make it easier to understand failure.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40567 91177308-0d34-0410-b5e6-96231b3b80d8

2 files changed, 13 insertions, 4 deletions

diff --git a/include/llvm/PassManagers.h b/include/llvm/PassManagers.h
index 5cbb77a779..9b6f551f6d 100644
--- a/include/llvm/PassManagers.h
+++ b/include/llvm/PassManagers.h
@@ -227,10 +227,7 @@ public:
   /// Add RequiredPass into list of lower level passes required by pass P.
   /// RequiredPass is run on the fly by Pass Manager when P requests it
   /// through getAnalysis interface.
-  virtual void addLowerLevelRequiredPass(Pass *P, Pass *RequiredPass) {
-    assert (0 && 
-            "Unable to handle Pass that requires lower level Analysis pass");
-  }
+  virtual void addLowerLevelRequiredPass(Pass *P, Pass *RequiredPass);
 
   virtual Pass * getOnTheFlyPass(Pass *P, const PassInfo *PI, Function &F) {
     assert (0 && "Unable to find on the fly pass");
diff --git a/lib/VMCore/PassManager.cpp b/lib/VMCore/PassManager.cpp
index 0cd1cfaa11..af0849d580 100644
--- a/lib/VMCore/PassManager.cpp
+++ b/lib/VMCore/PassManager.cpp
@@ -907,6 +907,18 @@ void PMDataManager::dumpAnalysisSetInfo(const char *Msg, Pass *P,
   }
 }
 
+/// Add RequiredPass into list of lower level passes required by pass P.
+/// RequiredPass is run on the fly by Pass Manager when P requests it
+/// through getAnalysis interface.
+/// This should be handled by specific pass manager.
+void PMDataManager::addLowerLevelRequiredPass(Pass *P, Pass *RequiredPass) {
+  if (TPM) {
+    TPM->dumpArguments();
+    TPM->dumpPasses();
+  }
+  assert (0 && "Unable to handle Pass that requires lower level Analysis pass");
+}
+
 // Destructor
 PMDataManager::~PMDataManager() {