[llvm-commits] CVS: llvm/lib/Analysis/LoopPass.cpp

[Devang Patel]

Changes in directory llvm/lib/Analysis:

LoopPass.cpp updated: 1.5 -> 1.6
---
Log message:

Teach LoopPass to assign itself one Loop Pass Manager.


---
Diffs of the changes:  (+41 -0)

 LoopPass.cpp |   41 +++++++++++++++++++++++++++++++++++++++++
 1 files changed, 41 insertions(+)


Index: llvm/lib/Analysis/LoopPass.cpp
diff -u llvm/lib/Analysis/LoopPass.cpp:1.5 llvm/lib/Analysis/LoopPass.cpp:1.6
--- llvm/lib/Analysis/LoopPass.cpp:1.5	Thu Feb 22 18:16:44 2007
+++ llvm/lib/Analysis/LoopPass.cpp	Thu Feb 22 18:36:57 2007
@@ -143,3 +143,44 @@
 }
 
 
+//===----------------------------------------------------------------------===//
+// LoopPass
+
+/// Assign pass manager to manage this pass.
+void LoopPass::assignPassManager(PMStack &PMS,
+                                 PassManagerType PreferredType) {
+  // Find LPPassManager 
+  while (!PMS.empty()) {
+    if (PMS.top()->getPassManagerType() > PMT_LoopPassManager)
+      PMS.pop();
+    else;
+    break;
+  }
+
+  LPPassManager *LPPM = dynamic_cast<LPPassManager *>(PMS.top());
+
+  // Create new Loop Pass Manager if it does not exist. 
+  if (!LPPM) {
+
+    assert (!PMS.empty() && "Unable to create Loop Pass Manager");
+    PMDataManager *PMD = PMS.top();
+
+    // [1] Create new Call Graph Pass Manager
+    LPPM = new LPPassManager(PMD->getDepth() + 1);
+
+    // [2] Set up new manager's top level manager
+    PMTopLevelManager *TPM = PMD->getTopLevelManager();
+    TPM->addIndirectPassManager(LPPM);
+
+    // [3] Assign manager to manage this new manager. This may create
+    // and push new managers into PMS
+    Pass *P = dynamic_cast<Pass *>(LPPM);
+    P->assignPassManager(PMS);
+
+    // [4] Push new manager into PMS
+    PMS.push(LPPM);
+  }
+
+  LPPM->add(this);
+}
+