diff options
Diffstat (limited to 'include/llvm/ParameterAttributes.h')
| -rw-r--r-- | include/llvm/ParameterAttributes.h | 62 |
1 files changed, 33 insertions, 29 deletions
diff --git a/include/llvm/ParameterAttributes.h b/include/llvm/ParameterAttributes.h index 31f9eb4..270ff65 100644 --- a/include/llvm/ParameterAttributes.h +++ b/include/llvm/ParameterAttributes.h @@ -31,50 +31,55 @@ namespace ParamAttr { /// lists the attributes that can be associated with parameters or function /// results. /// @brief Function parameter attributes. -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 - NoAlias = 1 << 6, ///< Considered to not alias after call - ByVal = 1 << 7, ///< Pass structure by value - Nest = 1 << 8, ///< Nested function static chain - ReadNone = 1 << 9, ///< Function does not access memory - ReadOnly = 1 << 10 ///< Function only reads from memory -}; + +/// @brief A more friendly way to reference the attributes. +typedef uint32_t Attributes; + +const Attributes None = 0; ///< No attributes have been set +const Attributes ZExt = 1<<0; ///< Zero extended before/after call +const Attributes SExt = 1<<1; ///< Sign extended before/after call +const Attributes NoReturn = 1<<2; ///< Mark the function as not returning +const Attributes InReg = 1<<3; ///< Force argument to be passed in register +const Attributes StructRet = 1<<4; ///< Hidden pointer to structure to return +const Attributes NoUnwind = 1<<5; ///< Function doesn't unwind stack +const Attributes NoAlias = 1<<6; ///< Considered to not alias after call +const Attributes ByVal = 1<<7; ///< Pass structure by value +const Attributes Nest = 1<<8; ///< Nested function static chain +const Attributes ReadNone = 1<<9; ///< Function does not access memory +const Attributes ReadOnly = 1<<10; ///< Function only reads from memory /// @brief Attributes that only apply to function parameters. -const uint16_t ParameterOnly = ByVal | InReg | Nest | StructRet; +const Attributes ParameterOnly = ByVal | InReg | Nest | StructRet; /// @brief Attributes that only apply to function return values. -const uint16_t ReturnOnly = NoReturn | NoUnwind | ReadNone | ReadOnly; +const Attributes ReturnOnly = NoReturn | NoUnwind | ReadNone | ReadOnly; /// @brief Parameter attributes that do not apply to vararg call arguments. -const uint16_t VarArgsIncompatible = StructRet; +const Attributes VarArgsIncompatible = StructRet; /// @brief Attributes that are mutually incompatible. -const uint16_t MutuallyIncompatible[3] = { +const Attributes MutuallyIncompatible[3] = { ByVal | InReg | Nest | StructRet, ZExt | SExt, ReadNone | ReadOnly }; /// @brief Which attributes cannot be applied to a type. -uint16_t typeIncompatible (const Type *Ty); +Attributes typeIncompatible (const Type *Ty); } // end namespace ParamAttr +/// @brief A more friendly way to reference the attributes. +typedef ParamAttr::Attributes ParameterAttributes; + /// This is just a pair of values to associate a set of parameter attributes /// with a parameter index. /// @brief ParameterAttributes with a parameter index. struct ParamAttrsWithIndex { - uint16_t attrs; ///< The attributes that are set, or'd together + ParameterAttributes attrs; ///< The attributes that are set, or'd together uint16_t index; ///< Index of the parameter for which the attributes apply - static ParamAttrsWithIndex get(uint16_t idx, uint16_t attrs) { + static ParamAttrsWithIndex get(uint16_t idx, ParameterAttributes attrs) { ParamAttrsWithIndex P; P.index = idx; P.attrs = attrs; @@ -85,9 +90,6 @@ struct ParamAttrsWithIndex { /// @brief A vector of attribute/index pairs. typedef SmallVector<ParamAttrsWithIndex,4> ParamAttrsVector; -/// @brief A more friendly way to reference the attributes. -typedef ParamAttr::Attributes ParameterAttributes; - /// This class represents a list of attribute/index pairs for parameter /// attributes. Each entry in the list contains the index of a function /// parameter and the associated ParameterAttributes. If a parameter's index is @@ -143,11 +145,13 @@ class ParamAttrsList : public FoldingSetNode { /// @brief Add the specified attributes to those in PAL at index idx. static const ParamAttrsList *includeAttrs(const ParamAttrsList *PAL, - uint16_t idx, uint16_t attrs); + uint16_t idx, + ParameterAttributes attrs); /// @brief Remove the specified attributes from those in PAL at index idx. static const ParamAttrsList *excludeAttrs(const ParamAttrsList *PAL, - uint16_t idx, uint16_t attrs); + uint16_t idx, + ParameterAttributes attrs); /// @} /// @name Accessors @@ -161,7 +165,7 @@ class ParamAttrsList : public FoldingSetNode { /// @returns The all the ParameterAttributes for the \p indexth parameter /// as a uint16_t of enumeration values OR'd together. /// @brief Get the attributes for a parameter - uint16_t getParamAttrs(uint16_t param_index) const; + ParameterAttributes getParamAttrs(uint16_t param_index) const; /// This checks to see if the \p ith function parameter has the parameter /// attribute given by \p attr set. @@ -181,7 +185,7 @@ class ParamAttrsList : public FoldingSetNode { /// string of equivalent mnemonics. This is, presumably, for writing out /// the mnemonics for the assembly writer. /// @brief Convert parameter attribute bits to text - static std::string getParamAttrsText(uint16_t Attributes); + static std::string getParamAttrsText(ParameterAttributes Attributes); /// The \p Indexth parameter attribute is converted to string. /// @brief Get the text for the parmeter attributes for one parameter. @@ -218,7 +222,7 @@ class ParamAttrsList : public FoldingSetNode { return attrs[attr_index].index; } - uint16_t getParamAttrsAtIndex(unsigned attr_index) const { + ParameterAttributes getParamAttrsAtIndex(unsigned attr_index) const { return attrs[attr_index].attrs; } |