Change references to the Method class to be references to the Function
class.  The Method class is obsolete (renamed) and all references to it
are being converted over to Function.

llvm-svn: 2144
diff --git a/llvm/lib/Transforms/IPO/ConstantMerge.cpp b/llvm/lib/Transforms/IPO/ConstantMerge.cpp
index d78d185..ef51105 100644
--- a/llvm/lib/Transforms/IPO/ConstantMerge.cpp
+++ b/llvm/lib/Transforms/IPO/ConstantMerge.cpp
@@ -9,7 +9,7 @@
 // and elminate duplicates when it is initialized.
 //
 // The DynamicConstantMerge method is a superset of the ConstantMerge algorithm
-// that checks for each method to see if constants have been added to the
+// that checks for each function to see if constants have been added to the
 // constant pool since it was last run... if so, it processes them.
 //
 //===----------------------------------------------------------------------===//
@@ -17,7 +17,7 @@
 #include "llvm/Transforms/ConstantMerge.h"
 #include "llvm/GlobalVariable.h"
 #include "llvm/Module.h"
-#include "llvm/Method.h"
+#include "llvm/Function.h"
 #include "llvm/Pass.h"
 
 // mergeDuplicateConstants - Workhorse for the pass.  This eliminates duplicate
@@ -73,7 +73,7 @@
       return ::mergeDuplicateConstants(M, LastConstantSeen, Constants);
     }
     
-    bool runOnMethod(Method*) { return false; }
+    bool runOnMethod(Function *) { return false; }
     
     // doFinalization - Clean up internal state for this module
     //
@@ -85,11 +85,11 @@
   };
   
   struct DynamicConstantMerge : public ConstantMerge {
-    // doPerMethodWork - Check to see if any globals have been added to the 
+    // runOnMethod - Check to see if any globals have been added to the 
     // global list for the module.  If so, eliminate them.
     //
-    bool runOnMethod(Method *M) {
-      return ::mergeDuplicateConstants(M->getParent(), LastConstantSeen,
+    bool runOnMethod(Function *F) {
+      return ::mergeDuplicateConstants(F->getParent(), LastConstantSeen,
                                        Constants);
     }
   };
diff --git a/llvm/lib/Transforms/IPO/GlobalDCE.cpp b/llvm/lib/Transforms/IPO/GlobalDCE.cpp
index ea23dbe..ae9bd39 100644
--- a/llvm/lib/Transforms/IPO/GlobalDCE.cpp
+++ b/llvm/lib/Transforms/IPO/GlobalDCE.cpp
@@ -1,4 +1,4 @@
-//===-- GlobalDCE.cpp - DCE unreachable internal methods ---------*- C++ -*--=//
+//===-- GlobalDCE.cpp - DCE unreachable internal functions ----------------===//
 //
 // This transform is designed to eliminate unreachable internal globals
 //
@@ -7,40 +7,40 @@
 #include "llvm/Transforms/IPO/GlobalDCE.h"
 #include "llvm/Analysis/CallGraph.h"
 #include "llvm/Module.h"
-#include "llvm/Method.h"
+#include "llvm/Function.h"
 #include "llvm/Pass.h"
 #include "Support/DepthFirstIterator.h"
 #include <set>
 
-static bool RemoveUnreachableMethods(Module *M, CallGraph &CallGraph) {
-  // Calculate which methods are reachable from the external methods in the call
-  // graph.
+static bool RemoveUnreachableFunctions(Module *M, CallGraph &CallGraph) {
+  // Calculate which functions are reachable from the external functions in the
+  // call graph.
   //
   std::set<CallGraphNode*> ReachableNodes(df_begin(&CallGraph),
                                           df_end(&CallGraph));
 
-  // Loop over the methods in the module twice.  The first time is used to drop
-  // references that methods have to each other before they are deleted.  The
-  // second pass removes the methods that need to be removed.
+  // Loop over the functions in the module twice.  The first time is used to
+  // drop references that functions have to each other before they are deleted.
+  // The second pass removes the functions that need to be removed.
   //
-  std::vector<CallGraphNode*> MethodsToDelete;   // Track unused methods
+  std::vector<CallGraphNode*> FunctionsToDelete;   // Track unused functions
   for (Module::iterator I = M->begin(), E = M->end(); I != E; ++I) {
     CallGraphNode *N = CallGraph[*I];
     if (!ReachableNodes.count(N)) {              // Not reachable??
       (*I)->dropAllReferences();
       N->removeAllCalledMethods();
-      MethodsToDelete.push_back(N);
+      FunctionsToDelete.push_back(N);
     }
   }
 
-  // Nothing to do if no unreachable methods have been found...
-  if (MethodsToDelete.empty()) return false;
+  // Nothing to do if no unreachable functions have been found...
+  if (FunctionsToDelete.empty()) return false;
 
-  // Unreachables methods have been found and should have no references to them,
-  // delete them now.
+  // Unreachables functions have been found and should have no references to
+  // them, delete them now.
   //
-  for (std::vector<CallGraphNode*>::iterator I = MethodsToDelete.begin(),
-	 E = MethodsToDelete.end(); I != E; ++I)
+  for (std::vector<CallGraphNode*>::iterator I = FunctionsToDelete.begin(),
+	 E = FunctionsToDelete.end(); I != E; ++I)
     delete CallGraph.removeMethodFromModule(*I);
 
   return true;
@@ -52,7 +52,7 @@
     // the specified callgraph to reflect the changes.
     //
     bool run(Module *M) {
-      return RemoveUnreachableMethods(M, getAnalysis<CallGraph>());
+      return RemoveUnreachableFunctions(M, getAnalysis<CallGraph>());
     }
 
     // getAnalysisUsageInfo - This function works on the call graph of a module.
diff --git a/llvm/lib/Transforms/IPO/InlineSimple.cpp b/llvm/lib/Transforms/IPO/InlineSimple.cpp
index 51cde2e..d720c3c 100644
--- a/llvm/lib/Transforms/IPO/InlineSimple.cpp
+++ b/llvm/lib/Transforms/IPO/InlineSimple.cpp
@@ -1,26 +1,23 @@
-//===- MethodInlining.cpp - Code to perform method inlining ---------------===//
+//===- FunctionInlining.cpp - Code to perform function inlining -----------===//
 //
-// This file implements inlining of methods.
+// This file implements inlining of functions.
 //
 // Specifically, this:
-//   * Exports functionality to inline any method call
-//   * Inlines methods that consist of a single basic block
-//   * Is able to inline ANY method call
-//   . Has a smart heuristic for when to inline a method
+//   * Exports functionality to inline any function call
+//   * Inlines functions that consist of a single basic block
+//   * Is able to inline ANY function call
+//   . Has a smart heuristic for when to inline a function
 //
 // Notice that:
 //   * This pass opens up a lot of opportunities for constant propogation.  It
 //     is a good idea to to run a constant propogation pass, then a DCE pass 
 //     sometime after running this pass.
 //
-// TODO: Currently this throws away all of the symbol names in the method being
-//       inlined.  This shouldn't happen.
-//
 //===----------------------------------------------------------------------===//
 
 #include "llvm/Transforms/MethodInlining.h"
 #include "llvm/Module.h"
-#include "llvm/Method.h"
+#include "llvm/Function.h"
 #include "llvm/Pass.h"
 #include "llvm/iTerminators.h"
 #include "llvm/iPHINode.h"
@@ -53,7 +50,7 @@
   }
 }
 
-// InlineMethod - This function forcibly inlines the called method into the
+// InlineMethod - This function forcibly inlines the called function into the
 // basic block of the caller.  This returns false if it is not possible to
 // inline this call.  The program is still in a well defined state if this 
 // occurs though.
@@ -61,16 +58,16 @@
 // Note that this only does one level of inlining.  For example, if the 
 // instruction 'call B' is inlined, and 'B' calls 'C', then the call to 'C' now 
 // exists in the instruction stream.  Similiarly this will inline a recursive
-// method by one level.
+// function by one level.
 //
 bool InlineMethod(BasicBlock::iterator CIIt) {
   assert(isa<CallInst>(*CIIt) && "InlineMethod only works on CallInst nodes!");
   assert((*CIIt)->getParent() && "Instruction not embedded in basic block!");
-  assert((*CIIt)->getParent()->getParent() && "Instruction not in method!");
+  assert((*CIIt)->getParent()->getParent() && "Instruction not in function!");
 
   CallInst *CI = cast<CallInst>(*CIIt);
   const Function *CalledMeth = CI->getCalledFunction();
-  if (CalledMeth == 0 ||   // Can't inline external method or indirect call!
+  if (CalledMeth == 0 ||   // Can't inline external function or indirect call!
       CalledMeth->isExternal()) return false;
 
   //cerr << "Inlining " << CalledMeth->getName() << " into " 
@@ -90,7 +87,7 @@
 
   // If we have a return value generated by this call, convert it into a PHI 
   // node that gets values from each of the old RET instructions in the original
-  // method.
+  // function.
   //
   PHINode *PHI = 0;
   if (CalledMeth->getReturnType() != Type::VoidTy) {
@@ -107,26 +104,26 @@
     CI->replaceAllUsesWith(PHI);
   }
 
-  // Keep a mapping between the original method's values and the new duplicated
-  // code's values.  This includes all of: Method arguments, instruction values,
-  // constant pool entries, and basic blocks.
+  // Keep a mapping between the original function's values and the new
+  // duplicated code's values.  This includes all of: Function arguments,
+  // instruction values, constant pool entries, and basic blocks.
   //
   std::map<const Value *, Value*> ValueMap;
 
-  // Add the method arguments to the mapping: (start counting at 1 to skip the
-  // method reference itself)
+  // Add the function arguments to the mapping: (start counting at 1 to skip the
+  // function reference itself)
   //
-  Method::ArgumentListType::const_iterator PTI = 
+  Function::ArgumentListType::const_iterator PTI = 
     CalledMeth->getArgumentList().begin();
   for (unsigned a = 1, E = CI->getNumOperands(); a != E; ++a, ++PTI)
     ValueMap[*PTI] = CI->getOperand(a);
   
   ValueMap[NewBB] = NewBB;  // Returns get converted to reference NewBB
 
-  // Loop over all of the basic blocks in the method, inlining them as 
-  // appropriate.  Keep track of the first basic block of the method...
+  // Loop over all of the basic blocks in the function, inlining them as 
+  // appropriate.  Keep track of the first basic block of the function...
   //
-  for (Method::const_iterator BI = CalledMeth->begin(); 
+  for (Function::const_iterator BI = CalledMeth->begin(); 
        BI != CalledMeth->end(); ++BI) {
     const BasicBlock *BB = *BI;
     assert(BB->getTerminator() && "BasicBlock doesn't have terminator!?!?");
@@ -161,7 +158,7 @@
       if (PHI) {   // The PHI node should include this value!
 	assert(RI->getReturnValue() && "Ret should have value!");
 	assert(RI->getReturnValue()->getType() == PHI->getType() && 
-	       "Ret value not consistent in method!");
+	       "Ret value not consistent in function!");
 	PHI->addIncoming((Value*)RI->getReturnValue(), cast<BasicBlock>(BB));
       }
 
@@ -174,16 +171,16 @@
       break;
 
     default:
-      cerr << "MethodInlining: Don't know how to handle terminator: " << TI;
+      cerr << "FunctionInlining: Don't know how to handle terminator: " << TI;
       abort();
     }
   }
 
 
-  // Loop over all of the instructions in the method, fixing up operand 
+  // Loop over all of the instructions in the function, fixing up operand 
   // references as we go.  This uses ValueMap to do all the hard work.
   //
-  for (Method::const_iterator BI = CalledMeth->begin(); 
+  for (Function::const_iterator BI = CalledMeth->begin(); 
        BI != CalledMeth->end(); ++BI) {
     const BasicBlock *BB = *BI;
     BasicBlock *NBB = (BasicBlock*)ValueMap[BB];
@@ -197,7 +194,7 @@
   if (PHI) RemapInstruction(PHI, ValueMap);  // Fix the PHI node also...
 
   // Change the branch that used to go to NewBB to branch to the first basic 
-  // block of the inlined method.
+  // block of the inlined function.
   //
   TerminatorInst *Br = OrigBB->getTerminator();
   assert(Br && Br->getOpcode() == Instruction::Br && 
@@ -220,15 +217,15 @@
   return InlineMethod(CallIt);
 }
 
-static inline bool ShouldInlineMethod(const CallInst *CI, const Method *M) {
+static inline bool ShouldInlineFunction(const CallInst *CI, const Function *F) {
   assert(CI->getParent() && CI->getParent()->getParent() && 
 	 "Call not embedded into a method!");
 
   // Don't inline a recursive call.
-  if (CI->getParent()->getParent() == M) return false;
+  if (CI->getParent()->getParent() == F) return false;
 
   // Don't inline something too big.  This is a really crappy heuristic
-  if (M->size() > 3) return false;
+  if (F->size() > 3) return false;
 
   // Don't inline into something too big. This is a **really** crappy heuristic
   if (CI->getParent()->getParent()->size() > 10) return false;
@@ -238,30 +235,30 @@
 }
 
 
-static inline bool DoMethodInlining(BasicBlock *BB) {
+static inline bool DoFunctionInlining(BasicBlock *BB) {
   for (BasicBlock::iterator I = BB->begin(); I != BB->end(); ++I) {
     if (CallInst *CI = dyn_cast<CallInst>(*I)) {
-      // Check to see if we should inline this method
-      Method *F = CI->getCalledFunction();
-      if (F && ShouldInlineMethod(CI, F))
+      // Check to see if we should inline this function
+      Function *F = CI->getCalledFunction();
+      if (F && ShouldInlineFunction(CI, F))
 	return InlineMethod(I);
     }
   }
   return false;
 }
 
-// doMethodInlining - Use a heuristic based approach to inline methods that
+// doFunctionInlining - Use a heuristic based approach to inline functions that
 // seem to look good.
 //
-static bool doMethodInlining(Method *M) {
+static bool doFunctionInlining(Function *F) {
   bool Changed = false;
 
   // Loop through now and inline instructions a basic block at a time...
-  for (Method::iterator I = M->begin(); I != M->end(); )
-    if (DoMethodInlining(*I)) {
+  for (Function::iterator I = F->begin(); I != F->end(); )
+    if (DoFunctionInlining(*I)) {
       Changed = true;
       // Iterator is now invalidated by new basic blocks inserted
-      I = M->begin();
+      I = F->begin();
     } else {
       ++I;
     }
@@ -270,11 +267,11 @@
 }
 
 namespace {
-  struct MethodInlining : public MethodPass {
-    virtual bool runOnMethod(Method *M) {
-      return doMethodInlining(M);
+  struct FunctionInlining : public MethodPass {
+    virtual bool runOnMethod(Function *F) {
+      return doFunctionInlining(F);
     }
   };
 }
 
-Pass *createMethodInliningPass() { return new MethodInlining(); }
+Pass *createMethodInliningPass() { return new FunctionInlining(); }