From dafa4ddc466fe656d853f3fbc4a7805d37fbf1eb Mon Sep 17 00:00:00 2001 From: Devang Patel Date: Tue, 14 Nov 2006 00:03:04 +0000 Subject: [PATCH] Update comments. llvm-svn: 31713 --- llvm/lib/VMCore/PassManager.cpp | 13 ++++++++----- 1 file changed, 8 insertions(+), 5 deletions(-) diff --git a/llvm/lib/VMCore/PassManager.cpp b/llvm/lib/VMCore/PassManager.cpp index 81753a11810c..c3af45e8a635 100644 --- a/llvm/lib/VMCore/PassManager.cpp +++ b/llvm/lib/VMCore/PassManager.cpp @@ -62,10 +62,16 @@ public: } private: - // Analysis required by the passes managed by this manager + // Analysis required by the passes managed by this manager. This information + // used while selecting pass manager during addPass. If a pass does not + // preserve any analysis required by other passes managed by current + // pass manager then new pass manager is used. std::vector RequiredAnalysis; - // set of available Analysis + // Set of available Analysis. This information is used while scheduling + // pass. If a pass requires an analysis which is not not available then + // equired analysis pass is scheduled to run before the pass itself is + // scheduled to run. std::set AvailableAnalysis; // Collection of pass that are managed by this manager @@ -510,9 +516,6 @@ void PassManagerImpl_New::schedulePass(Pass *P) { } addPass(P); - - // TODO : Walk through all managers and remove not preserved analysis - // TODO : remove dead passes } /// Schedule all passes from the queue by adding them in their