Add a new BasicBlockPass::doInitialization/Finalization(Function &) pair of

methods that may be useful for BasicBlockPasses.

llvm-svn: 3688

2 files changed, 22 insertions, 4 deletions

diff --git a/llvm/lib/VMCore/Pass.cpp b/llvm/lib/VMCore/Pass.cpp
index b673484f214..19b564e61f3 100644
--- a/llvm/lib/VMCore/Pass.cpp
+++ b/llvm/lib/VMCore/Pass.cpp
@@ -341,18 +341,20 @@ void FunctionPass::addToPassManager(PassManagerT<Function> *PM,
 // function.
 //
 bool BasicBlockPass::runOnFunction(Function &F) {
-  bool Changed = false;
+  bool Changed = doInitialization(F);
   for (Function::iterator I = F.begin(), E = F.end(); I != E; ++I)
     Changed |= runOnBasicBlock(*I);
-  return Changed;
+  return Changed | doFinalization(F);
 }
 
 // To run directly on the basic block, we initialize, runOnBasicBlock, then
 // finalize.
 //
 bool BasicBlockPass::run(BasicBlock &BB) {
-  Module &M = *BB.getParent()->getParent();
-  return doInitialization(M) | runOnBasicBlock(BB) | doFinalization(M);
+  Function &F = *BB.getParent();
+  Module &M = *F.getParent();
+  return doInitialization(M) | doInitialization(F) | runOnBasicBlock(BB) |
+         doFinalization(F) | doFinalization(M);
 }
 
 void BasicBlockPass::addToPassManager(PassManagerT<Function> *PM,
diff --git a/llvm/lib/VMCore/PassManagerT.h b/llvm/lib/VMCore/PassManagerT.h
index 4a2ad886714..afff535391b 100644
--- a/llvm/lib/VMCore/PassManagerT.h
+++ b/llvm/lib/VMCore/PassManagerT.h
@@ -525,7 +525,9 @@ template<> struct PassManagerTraits<BasicBlock> : public BasicBlockPass {
 
   // Implement the BasicBlockPass interface...
   virtual bool doInitialization(Module &M);
+  virtual bool doInitialization(Function &F);
   virtual bool runOnBasicBlock(BasicBlock &BB);
+  virtual bool doFinalization(Function &F);
   virtual bool doFinalization(Module &M);
 
   virtual void getAnalysisUsage(AnalysisUsage &AU) const {
@@ -657,10 +659,24 @@ inline bool PassManagerTraits<BasicBlock>::doInitialization(Module &M) {
   return Changed;
 }
 
+inline bool PassManagerTraits<BasicBlock>::doInitialization(Function &F) {
+  bool Changed = false;
+  for (unsigned i = 0, e = ((PMType*)this)->Passes.size(); i != e; ++i)
+    ((PMType*)this)->Passes[i]->doInitialization(F);
+  return Changed;
+}
+
 inline bool PassManagerTraits<BasicBlock>::runOnBasicBlock(BasicBlock &BB) {
   return ((PMType*)this)->runOnUnit(&BB);
 }
 
+inline bool PassManagerTraits<BasicBlock>::doFinalization(Function &F) {
+  bool Changed = false;
+  for (unsigned i = 0, e = ((PMType*)this)->Passes.size(); i != e; ++i)
+    ((PMType*)this)->Passes[i]->doFinalization(F);
+  return Changed;
+}
+
 inline bool PassManagerTraits<BasicBlock>::doFinalization(Module &M) {
   bool Changed = false;
   for (unsigned i = 0, e = ((PMType*)this)->Passes.size(); i != e; ++i)