Add a method to clear optional optimization information from a Value.

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

diff --git a/include/llvm/Type.h b/include/llvm/Type.h
index 4a8bbf03de48f22e382a736d765101d20d8ce1e6..5e09a6122208000074a67ab81ab7ab4b0e2e0baa 100644 (file)
--- a/include/llvm/Type.h
+++ b/include/llvm/Type.h
@@ -12,6 +12,7 @@
 #define LLVM_TYPE_H
 
 #include "llvm/AbstractTypeUser.h"
+#include "llvm/LLVMContext.h"
 #include "llvm/Support/Casting.h"
 #include "llvm/Support/DataTypes.h"
 #include "llvm/System/Atomic.h"
@@ -66,6 +67,7 @@ public:
   /// value, you can cast to a "DerivedType" subclass (see DerivedTypes.h)
   /// Note: If you add an element to this, you need to add an element to the
   /// Type::getPrimitiveType function, or else things will break!
+  /// Also update LLVMTypeKind and LLVMGetTypeKind () in the C binding.
   ///
   enum TypeID {
     // PrimitiveTypes .. make sure LastPrimitiveTyID stays up to date
@@ -105,6 +107,9 @@ private:
   ///
   mutable sys::cas_flag RefCount;
 
+  /// Context - This refers to the LLVMContext in which this type was uniqued.
+  LLVMContext &Context;
+
   const Type *getForwardedTypeInternal() const;
 
   // Some Type instances are allocated as arrays, some aren't. So we provide
@@ -113,7 +118,8 @@ private:
 
 protected:
   explicit Type(TypeID id) : ID(id), Abstract(false), SubclassData(0),
-                             RefCount(0), ForwardType(0), NumContainedTys(0),
+                             RefCount(0), Context(getGlobalContext()),
+                             ForwardType(0), NumContainedTys(0),
                              ContainedTys(0) {}
   virtual ~Type() {
     assert(AbstractTypeUsers.empty() && "Abstract types remain");
@@ -169,6 +175,9 @@ public:
   /// module).
   void dump(const Module *Context) const;
 
+  /// getContext - Fetch the LLVMContext in which this type was uniqued.
+  LLVMContext &getContext() const { return Context; }
+
   //===--------------------------------------------------------------------===//
   // Property accessors for dealing with types... Some of these virtual methods
   // are defined in private classes defined in Type.cpp for primitive types.
@@ -270,7 +279,7 @@ public:
   ///
   /// Note that this may not reflect the size of memory allocated for an
   /// instance of the type or the number of bytes that are written when an
-  /// intance of the type is stored to memory. The TargetData class provides
+  /// instance of the type is stored to memory. The TargetData class provides
   /// additional query functions to provide this information.
   ///
   unsigned getPrimitiveSizeInBits() const;