Add support for variable argument functions!

[oota-llvm.git] / lib / Analysis / IPA / FindUsedTypes.cpp

diff --git a/lib/Analysis/IPA/FindUsedTypes.cpp b/lib/Analysis/IPA/FindUsedTypes.cpp
index db5a5342028738ff3df9293562142526940065a5..0916ab8c65f2a5cd427331bd11646a0dfe20871c 100644 (file)
--- a/lib/Analysis/IPA/FindUsedTypes.cpp
+++ b/lib/Analysis/IPA/FindUsedTypes.cpp
@@ -1,4 +1,4 @@
-//===- FindUsedTypes.h - Find all Types used by a module --------------------=//
+//===- FindUsedTypes.cpp - Find all Types used by a module ------------------=//
 //
 // This pass is used to seek out all of the types in use by the program.
 //
@@ -7,8 +7,15 @@
 #include "llvm/Analysis/FindUsedTypes.h"
 #include "llvm/Assembly/CachedWriter.h"
 #include "llvm/SymbolTable.h"
-#include "llvm/GlobalVariable.h"
 #include "llvm/DerivedTypes.h"
+#include "llvm/Module.h"
+#include "llvm/Support/InstIterator.h"
+
+static RegisterAnalysis<FindUsedTypes>
+X("printusedtypes", "Find Used Types");
+
+// stub to help linkage
+void FindUsedTypes::stub() {}
 
 // IncorporateType - Incorporate one type and all of its subtypes into the
 // collection of used types.
@@ -27,50 +34,35 @@ void FindUsedTypes::IncorporateType(const Type *Ty) {
     IncorporateType(*I);
 }
 
-// IncorporateSymbolTable - Add all types referenced by the specified symtab
-// into the collection of used types.
-//
-void FindUsedTypes::IncorporateSymbolTable(const SymbolTable *ST) {
-  assert(0 && "Unimp");
-}
-
 
-// doPassInitialization - This loops over global constants defined in the
-// module, converting them to their new type.
+// run - This incorporates all types used by the specified module
 //
-bool FindUsedTypes::doPassInitialization(Module *m) {
-  const Module *M = m;
-  if (IncludeSymbolTables && M->hasSymbolTable())
-    IncorporateSymbolTable(M->getSymbolTable()); // Add symtab first...
+bool FindUsedTypes::run(Module &m) {
+  UsedTypes.clear();  // reset if run multiple times...
 
   // Loop over global variables, incorporating their types
-  for (Module::const_giterator I = M->gbegin(), E = M->gend(); I != E; ++I)
-    IncorporateType((*I)->getType());
-  return false;
-}
+  for (Module::const_giterator I = m.gbegin(), E = m.gend(); I != E; ++I)
+    IncorporateType(I->getType());
 
-// doPerMethodWork - This incorporates all types used by the specified method
-//
-bool FindUsedTypes::doPerMethodWork(Method *m) {
-  const Method *M = m;
-  if (IncludeSymbolTables && M->hasSymbolTable())
-  IncorporateSymbolTable(M->getSymbolTable()); // Add symtab first...
+  for (Module::iterator MI = m.begin(), ME = m.end(); MI != ME; ++MI) {
+    const Function &F = *MI;
   
-  // Loop over all of the instructions in the method, adding their return type
-  // as well as the types of their operands.
-  //
-  for (Method::inst_const_iterator II = M->inst_begin(), IE = M->inst_end();
-       II != IE; ++II) {
-    const Instruction *I = *II;
-    const Type *Ty = I->getType();
+    // Loop over all of the instructions in the function, adding their return
+    // type as well as the types of their operands.
+    //
+    for (const_inst_iterator II = inst_begin(F), IE = inst_end(F);
+         II != IE; ++II) {
+      const Instruction *I = *II;
+      const Type *Ty = I->getType();
     
-    IncorporateType(Ty);  // Incorporate the type of the instruction
-    for (User::op_const_iterator OI = I->op_begin(), OE = I->op_end();
-         OI != OE; ++OI)
-      if ((*OI)->getType() != Ty)          // Avoid set lookup in common case
-        IncorporateType((*OI)->getType()); // Insert inst operand types as well
+      IncorporateType(Ty);  // Incorporate the type of the instruction
+      for (User::const_op_iterator OI = I->op_begin(), OE = I->op_end();
+           OI != OE; ++OI)
+        if ((*OI)->getType() != Ty)         // Avoid set lookup in common case
+          IncorporateType((*OI)->getType());// Insert inst operand types as well
+    }
   }
-  
+ 
   return false;
 }
 
@@ -78,15 +70,15 @@ bool FindUsedTypes::doPerMethodWork(Method *m) {
 // passed in, then the types are printed symbolically if possible, using the
 // symbol table from the module.
 //
-void FindUsedTypes::printTypes(ostream &o, const Module *M = 0) const {
+void FindUsedTypes::print(std::ostream &o, const Module *M) const {
   o << "Types in use by this module:\n";
   if (M) {
     CachedWriter CW(M, o);
-    for (set<const Type *>::const_iterator I = UsedTypes.begin(),
+    for (std::set<const Type *>::const_iterator I = UsedTypes.begin(),
            E = UsedTypes.end(); I != E; ++I)
-      CW << "  " << *I << endl;
+      CW << "  " << *I << "\n";
   } else
-    for (set<const Type *>::const_iterator I = UsedTypes.begin(),
+    for (std::set<const Type *>::const_iterator I = UsedTypes.begin(),
            E = UsedTypes.end(); I != E; ++I)
-      o << "  " << *I << endl;
+      o << "  " << *I << "\n";
 }