From f3827bc21d78a3903d29a1d70554403484f9de16 Mon Sep 17 00:00:00 2001
From: Devang Patel <dpatel@apple.com>
Date: Thu, 7 Dec 2006 19:54:15 +0000
Subject: [PATCH] Add a handle to the top level pass manager in PMDataManager.

llvm-svn: 32317
---
 llvm/lib/VMCore/PassManager.cpp | 15 ++++++++++++++-
 1 file changed, 14 insertions(+), 1 deletion(-)

diff --git a/llvm/lib/VMCore/PassManager.cpp b/llvm/lib/VMCore/PassManager.cpp
index bf306e9d5c89..0dff67f27201 100644
--- a/llvm/lib/VMCore/PassManager.cpp
+++ b/llvm/lib/VMCore/PassManager.cpp
@@ -160,7 +160,8 @@ void PMTopLevelManager::collectLastUses(std::vector<Pass *> &LastUses,
         LastUses.push_back(LUI->first);
 }
 
-
+//===----------------------------------------------------------------------===//
+// PMDataManager
 
 /// PMDataManager provides the common place to manage the analysis data
 /// used by pass managers.
@@ -168,6 +169,10 @@ class PMDataManager {
 
 public:
 
+  PMDataManager() : TPM(NULL) {
+    initializeAnalysisInfo();
+  }
+
   /// Return true IFF pass P's required analysis set does not required new
   /// manager.
   bool manageablePass(Pass *P);
@@ -222,6 +227,10 @@ public:
     // TODO : Check if pass P is available.
   }
 
+  // Access toplevel manager
+  PMTopLevelManager *getTopLevelManager() { return TPM; }
+  void setTopLevelManager(PMTopLevelManager *T) { TPM = T; }
+
 private:
   // Set of available Analysis. This information is used while scheduling 
   // pass. If a pass requires an analysis which is not not available then 
@@ -235,6 +244,10 @@ private:
 
   // Collection of pass that are managed by this manager
   std::vector<Pass *> PassVector;
+
+  // Top level manager.
+  // TODO : Make it a reference.
+  PMTopLevelManager *TPM;
 };
 
 /// BasicBlockPassManager_New manages BasicBlockPass. It batches all the