diff options
Diffstat (limited to 'include/llvm/Type.h')
-rw-r--r-- | include/llvm/Type.h | 36 |
1 files changed, 18 insertions, 18 deletions
diff --git a/include/llvm/Type.h b/include/llvm/Type.h index c1732af09bdd..d439233d8c05 100644 --- a/include/llvm/Type.h +++ b/include/llvm/Type.h @@ -14,6 +14,7 @@ #include "llvm/AbstractTypeUser.h" #include "llvm/Support/Casting.h" #include "llvm/Support/DataTypes.h" +#include "llvm/System/Atomic.h" #include "llvm/ADT/GraphTraits.h" #include "llvm/ADT/iterator.h" #include <string> @@ -102,7 +103,7 @@ private: /// has no AbstractTypeUsers, the type is deleted. This is only sensical for /// derived types. /// - mutable unsigned RefCount; + mutable sys::cas_flag RefCount; const Type *getForwardedTypeInternal() const; @@ -268,19 +269,16 @@ public: /// primitive type. /// unsigned getPrimitiveSizeInBits() const; - + + /// getScalarSizeInBits - If this is a vector type, return the + /// getPrimitiveSizeInBits value for the element type. Otherwise return the + /// getPrimitiveSizeInBits value for this type. + unsigned getScalarSizeInBits() const; + /// getFPMantissaWidth - Return the width of the mantissa of this type. This - /// is only valid on scalar floating point types. If the FP type does not + /// is only valid on floating point types. If the FP type does not /// have a stable mantissa (e.g. ppc long double), this method returns -1. - int getFPMantissaWidth() const { - assert(isFloatingPoint() && "Not a floating point type!"); - if (ID == FloatTyID) return 24; - if (ID == DoubleTyID) return 53; - if (ID == X86_FP80TyID) return 64; - if (ID == FP128TyID) return 113; - assert(ID == PPC_FP128TyID && "unknown fp type"); - return -1; - } + int getFPMantissaWidth() const; /// getForwardedType - Return the type that this type has been resolved to if /// it has been resolved to anything. This is used to implement the @@ -296,6 +294,10 @@ public: /// function. const Type *getVAArgsPromotedType() const; + /// getScalarType - If this is a vector type, return the element type, + /// otherwise return this. + const Type *getScalarType() const; + //===--------------------------------------------------------------------===// // Type Iteration support // @@ -336,7 +338,7 @@ public: void addRef() const { assert(isAbstract() && "Cannot add a reference to a non-abstract type!"); - ++RefCount; + sys::AtomicIncrement(&RefCount); } void dropRef() const { @@ -345,17 +347,15 @@ public: // If this is the last PATypeHolder using this object, and there are no // PATypeHandles using it, the type is dead, delete it now. - if (--RefCount == 0 && AbstractTypeUsers.empty()) + sys::cas_flag OldCount = sys::AtomicDecrement(&RefCount); + if (OldCount == 0 && AbstractTypeUsers.empty()) this->destroy(); } /// addAbstractTypeUser - Notify an abstract type that there is a new user of /// it. This function is called primarily by the PATypeHandle class. /// - void addAbstractTypeUser(AbstractTypeUser *U) const { - assert(isAbstract() && "addAbstractTypeUser: Current type not abstract!"); - AbstractTypeUsers.push_back(U); - } + void addAbstractTypeUser(AbstractTypeUser *U) const; /// removeAbstractTypeUser - Notify an abstract type that a user of the class /// no longer has a handle to the type. This function is called primarily by |