[llvm-commits] [llvm] r133359 - /llvm/trunk/include/llvm/Type.h
Chris Lattner
sabre at nondot.org
Sat Jun 18 14:02:49 PDT 2011
Author: lattner
Date: Sat Jun 18 16:02:49 2011
New Revision: 133359
URL: http://llvm.org/viewvc/llvm-project?rev=133359&view=rev
Log:
improve some comments.
Modified:
llvm/trunk/include/llvm/Type.h
Modified: llvm/trunk/include/llvm/Type.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/Type.h?rev=133359&r1=133358&r2=133359&view=diff
==============================================================================
--- llvm/trunk/include/llvm/Type.h (original)
+++ llvm/trunk/include/llvm/Type.h Sat Jun 18 16:02:49 2011
@@ -60,7 +60,7 @@
/// @brief Root of type hierarchy
class Type : public AbstractTypeUser {
public:
- //===-------------------------------------------------------------------===//
+ //===--------------------------------------------------------------------===//
/// Definitions of all of the base types for the Type system. Based on this
/// 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
@@ -70,17 +70,17 @@
enum TypeID {
// PrimitiveTypes .. make sure LastPrimitiveTyID stays up to date
VoidTyID = 0, ///< 0: type with no size
- FloatTyID, ///< 1: 32 bit floating point type
- DoubleTyID, ///< 2: 64 bit floating point type
- X86_FP80TyID, ///< 3: 80 bit floating point type (X87)
- FP128TyID, ///< 4: 128 bit floating point type (112-bit mantissa)
- PPC_FP128TyID, ///< 5: 128 bit floating point type (two 64-bits, PowerPC)
+ FloatTyID, ///< 1: 32-bit floating point type
+ DoubleTyID, ///< 2: 64-bit floating point type
+ X86_FP80TyID, ///< 3: 80-bit floating point type (X87)
+ FP128TyID, ///< 4: 128-bit floating point type (112-bit mantissa)
+ PPC_FP128TyID, ///< 5: 128-bit floating point type (two 64-bits, PowerPC)
LabelTyID, ///< 6: Labels
MetadataTyID, ///< 7: Metadata
- X86_MMXTyID, ///< 8: MMX vectors (64 bits)
+ X86_MMXTyID, ///< 8: MMX vectors (64 bits, X86 specific)
- // Derived types... see DerivedTypes.h file...
- // Make sure FirstDerivedTyID stays up to date!!!
+ // Derived types... see DerivedTypes.h file.
+ // Make sure FirstDerivedTyID stays up to date!
IntegerTyID, ///< 9: Arbitrary bit width integers
FunctionTyID, ///< 10: Functions
StructTyID, ///< 11: Structures
@@ -112,9 +112,8 @@
const Type *getForwardedTypeInternal() const;
- // Some Type instances are allocated as arrays, some aren't. So we provide
- // this method to get the right kind of destruction for the type of Type.
- void destroy() const; // const is a lie, this does "delete this"!
+ // When the last reference to a forwarded type is removed, it is destroyed.
+ void destroy() const;
protected:
explicit Type(LLVMContext &C, TypeID id) :
@@ -523,7 +522,7 @@
//===----------------------------------------------------------------------===//
// Provide specializations of GraphTraits to be able to treat a type as a
-// graph of sub types...
+// graph of sub types.
template <> struct GraphTraits<Type*> {
typedef Type NodeType;
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