Remove DbgNode checks in constructor. Debug descriptors are intended to be light...

[oota-llvm.git] / include / llvm / Module.h

diff --git a/include/llvm/Module.h b/include/llvm/Module.h
index a5a2ad46005751b3226dc1f185d7b1237dd60101..901fada3ebfc225a809ec13538b7fe691774b21b 100644 (file)
--- a/include/llvm/Module.h
+++ b/include/llvm/Module.h
@@ -19,12 +19,14 @@
 #include "llvm/GlobalVariable.h"
 #include "llvm/GlobalAlias.h"
 #include "llvm/Metadata.h"
+#include "llvm/ADT/OwningPtr.h"
 #include "llvm/System/DataTypes.h"
 #include <vector>
 
 namespace llvm {
 
 class FunctionType;
+class GVMaterializer;
 class LLVMContext;
 class MDSymbolTable;
 
@@ -57,6 +59,7 @@ template<> struct ilist_traits<GlobalAlias>
   static GlobalAlias *createSentinel();
   static void destroySentinel(GlobalAlias *GA) { delete GA; }
 };
+
 template<> struct ilist_traits<NamedMDNode>
   : public SymbolTableListTraits<NamedMDNode, Module> {
   // createSentinel is used to get hold of a node that marks the end of
@@ -69,6 +72,8 @@ template<> struct ilist_traits<NamedMDNode>
   NamedMDNode *provideInitialHead() const { return createSentinel(); }
   NamedMDNode *ensureHead(NamedMDNode*) const { return createSentinel(); }
   static void noteHead(NamedMDNode*, NamedMDNode*) {}
+  void addNodeToList(NamedMDNode *N);
+  void removeNodeFromList(NamedMDNode *N);
 private:
   mutable ilist_node<NamedMDNode> Sentinel;
 };
@@ -142,6 +147,7 @@ private:
   std::string GlobalScopeAsm;     ///< Inline Asm at global scope.
   ValueSymbolTable *ValSymTab;    ///< Symbol table for values
   TypeSymbolTable *TypeSymTab;    ///< Symbol table for types
+  OwningPtr<GVMaterializer> Materializer;  ///< Used to materialize GlobalValues
   std::string ModuleID;           ///< Human readable identifier for the module
   std::string TargetTriple;       ///< Platform target triple Module compiled on
   std::string DataLayout;         ///< Target data description
@@ -208,11 +214,13 @@ public:
   /// Set the module-scope inline assembly blocks.
   void setModuleInlineAsm(StringRef Asm) { GlobalScopeAsm = Asm; }
 
-  /// Append to the module-scope inline assembly blocks, automatically
-  /// appending a newline to the end.
+  /// Append to the module-scope inline assembly blocks, automatically inserting
+  /// a separating newline if necessary.
   void appendModuleInlineAsm(StringRef Asm) {
+    if (!GlobalScopeAsm.empty() &&
+        GlobalScopeAsm[GlobalScopeAsm.size()-1] != '\n')
+      GlobalScopeAsm += '\n';
     GlobalScopeAsm += Asm;
-    GlobalScopeAsm += '\n';
   }
 
 /// @}
@@ -324,10 +332,6 @@ public:
   /// NamedMDNode with the specified name is not found.
   NamedMDNode *getOrInsertNamedMetadata(StringRef Name);
 
-  /// addMDNodeName - Insert an entry in the NamedMDNode symbol table mapping
-  /// Name to NMD. 
-  void addMDNodeName(StringRef Name, NamedMDNode *NMD);
-
 /// @}
 /// @name Type Accessors
 /// @{
@@ -345,6 +349,50 @@ public:
   /// null if there is none by that name.
   const Type *getTypeByName(StringRef Name) const;
 
+/// @}
+/// @name Materialization
+/// @{
+
+  /// setMaterializer - Sets the GVMaterializer to GVM.  This module must not
+  /// yet have a Materializer.  To reset the materializer for a module that
+  /// already has one, call MaterializeAllPermanently first.  Destroying this
+  /// module will destroy its materializer without materializing any more
+  /// GlobalValues.  Without destroying the Module, there is no way to detach or
+  /// destroy a materializer without materializing all the GVs it controls, to
+  /// avoid leaving orphan unmaterialized GVs.
+  void setMaterializer(GVMaterializer *GVM);
+  /// getMaterializer - Retrieves the GVMaterializer, if any, for this Module.
+  GVMaterializer *getMaterializer() const { return Materializer.get(); }
+
+  /// isMaterializable - True if the definition of GV has yet to be materialized
+  /// from the GVMaterializer.
+  bool isMaterializable(const GlobalValue *GV) const;
+  /// isDematerializable - Returns true if this GV was loaded from this Module's
+  /// GVMaterializer and the GVMaterializer knows how to dematerialize the GV.
+  bool isDematerializable(const GlobalValue *GV) const;
+
+  /// Materialize - Make sure the GlobalValue is fully read.  If the module is
+  /// corrupt, this returns true and fills in the optional string with
+  /// information about the problem.  If successful, this returns false.
+  bool Materialize(GlobalValue *GV, std::string *ErrInfo = 0);
+  /// Dematerialize - If the GlobalValue is read in, and if the GVMaterializer
+  /// supports it, release the memory for the function, and set it up to be
+  /// materialized lazily.  If !isDematerializable(), this method is a noop.
+  void Dematerialize(GlobalValue *GV);
+
+  /// MaterializeAll - Make sure all GlobalValues in this Module are fully read.
+  /// If the module is corrupt, this returns true and fills in the optional
+  /// string with information about the problem.  If successful, this returns
+  /// false.
+  bool MaterializeAll(std::string *ErrInfo = 0);
+
+  /// MaterializeAllPermanently - Make sure all GlobalValues in this Module are
+  /// fully read and clear the Materializer.  If the module is corrupt, this
+  /// returns true, fills in the optional string with information about the
+  /// problem, and DOES NOT clear the old Materializer.  If successful, this
+  /// returns false.
+  bool MaterializeAllPermanently(std::string *ErrInfo = 0);
+
 /// @}
 /// @name Direct access to the globals list, functions list, and symbol table
 /// @{