diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/llvm/ParameterAttributes.h | 67 |
1 files changed, 49 insertions, 18 deletions
diff --git a/include/llvm/ParameterAttributes.h b/include/llvm/ParameterAttributes.h index e1c2844bfe..48044b9591 100644 --- a/include/llvm/ParameterAttributes.h +++ b/include/llvm/ParameterAttributes.h @@ -1,4 +1,4 @@ -//===-- llvm/ParameterAttributes.h - Container for Param Attrs --*- C++ -*-===// +//===-- llvm/ParameterAttributes.h - Container for ParamAttrs ---*- C++ -*-===// // // The LLVM Compiler Infrastructure // @@ -25,16 +25,22 @@ namespace llvm { /// treated by optimizations and code generation. This enumeration lists the /// attributes that can be associated with parameters or function results. /// @brief Function parameter attributes. -enum ParameterAttributes { - NoAttributeSet = 0, ///< No attributes have been set - ZExtAttribute = 1 << 0, ///< zero extended before/after call - SExtAttribute = 1 << 1, ///< sign extended before/after call - NoReturnAttribute = 1 << 2, ///< mark the function as not returning - InRegAttribute = 1 << 3, ///< force argument to be passed in register - StructRetAttribute = 1 << 4, ///< hidden pointer to structure to return - NoUnwindAttribute = 1 << 5 ///< Function doesn't unwind stack +namespace ParamAttr { + +enum Attributes { + None = 0, ///< No attributes have been set + ZExt = 1 << 0, ///< zero extended before/after call + SExt = 1 << 1, ///< sign extended before/after call + NoReturn = 1 << 2, ///< mark the function as not returning + InReg = 1 << 3, ///< force argument to be passed in register + StructRet = 1 << 4, ///< hidden pointer to structure to return + NoUnwind = 1 << 5 ///< Function doesn't unwind stack }; +} + +typedef ParamAttr::Attributes ParameterAttributes; + /// This class is used by Function and CallInst to represent the set of /// parameter attributes used. It represents a list of pairs of uint16_t, one /// for the parameter index, and one a set of ParameterAttributes bits. @@ -45,6 +51,39 @@ enum ParameterAttributes { /// are provided to obtain information about the attributes. /// @brief A List of ParameterAttributes. class ParamAttrsList { + //void operator=(const ParamAttrsList &); // Do not implement + //ParamAttrsList(const ParamAttrsList &); // Do not implement + + /// @name Types + /// @{ + public: + /// This is an internal structure used to associate the ParameterAttributes + /// with a parameter index. + /// @brief ParameterAttributes with a parameter index. + struct ParamAttrsWithIndex { + uint16_t attrs; ///< The attributes that are set, |'d together + uint16_t index; ///< Index of the parameter for which the attributes apply + }; + + /// @brief A vector of attribute/index pairs. + typedef SmallVector<ParamAttrsWithIndex,4> ParamAttrsVector; + + /// @} + /// @name Construction + /// @{ + public: + /// @brief Construct an empty ParamAttrsList + ParamAttrsList() {} + + /// This method ensures the uniqueness of ParamAttrsList instances. The + /// argument is a vector of attribute/index pairs as represented by the + /// ParamAttrsWithIndex structure. The vector is used in the construction of + /// the ParamAttrsList instance. If an instance with identical vector pairs + /// exists, it will be returned instead of creating a new instance. + /// @brief Get a ParamAttrsList instance. + ParamAttrsList *get(const ParamAttrsVector &attrVec); + + /// @} /// @name Accessors /// @{ public: @@ -148,15 +187,7 @@ class ParamAttrsList { /// @name Data /// @{ private: - /// This is an internal structure used to associate the ParameterAttributes - /// with a parameter index. - /// @brief ParameterAttributes with a parameter index. - struct ParamAttrsWithIndex { - uint16_t attrs; ///< The attributes that are set, |'d together - uint16_t index; ///< Index of the parameter for which the attributes apply - }; - - SmallVector<ParamAttrsWithIndex,4> attrs; ///< The list of attributes + ParamAttrsVector attrs; ///< The list of attributes /// @} }; |