X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;ds=sidebyside;f=include%2Fllvm%2FFunction.h;h=942a5f00d54c6de1f5b5fa03124c2f776aa854d5;hb=0f123cf732ad249117b7471e37bf819633b76a6e;hp=2c4f9d9e27dea5c85e0d4c203cccb5e876a6bee7;hpb=49269d9e7eb5ce6e1a84a10ca0bdeab044d0db3d;p=oota-llvm.git diff --git a/include/llvm/Function.h b/include/llvm/Function.h index 2c4f9d9e27d..942a5f00d54 100644 --- a/include/llvm/Function.h +++ b/include/llvm/Function.h @@ -22,11 +22,11 @@ #include "llvm/BasicBlock.h" #include "llvm/Argument.h" #include "llvm/Support/Annotation.h" +#include "llvm/Attributes.h" namespace llvm { class FunctionType; -class ParamAttrsList; // Traits for intrusive list of instructions... template<> struct ilist_traits @@ -51,7 +51,8 @@ template<> struct ilist_traits static int getListOffset(); }; -class Function : public GlobalValue, public Annotable { +class Function : public GlobalValue, public Annotable, + public ilist_node { public: typedef iplist ArgumentListType; typedef iplist BasicBlockListType; @@ -68,26 +69,14 @@ private: BasicBlockListType BasicBlocks; ///< The basic blocks mutable ArgumentListType ArgumentList; ///< The formal arguments ValueSymbolTable *SymTab; ///< Symbol table of args/instructions - const ParamAttrsList *ParamAttrs; ///< Parameter attributes - + AttrListPtr AttributeList; ///< Parameter attributes + // The Calling Convention is stored in Value::SubclassData. /*unsigned CallingConvention;*/ friend class SymbolTableListTraits; void setParent(Module *parent); - Function *Prev, *Next; - void setNext(Function *N) { Next = N; } - void setPrev(Function *N) { Prev = N; } - - // getNext/Prev - Return the next or previous function in the list. These - // methods should never be used directly, and are only used to implement the - // function list as part of the module. - // - Function *getNext() { return Next; } - const Function *getNext() const { return Next; } - Function *getPrev() { return Prev; } - const Function *getPrev() const { return Prev; } /// hasLazyArguments/CheckLazyArguments - The argument list of a function is /// built on demand, so that the list isn't allocated until the first client @@ -104,13 +93,20 @@ private: Function(const Function&); // DO NOT IMPLEMENT void operator=(const Function&); // DO NOT IMPLEMENT -public: + /// Function ctor - If the (optional) Module argument is specified, the /// function is automatically inserted into the end of the function list for /// the module. /// Function(const FunctionType *Ty, LinkageTypes Linkage, const std::string &N = "", Module *M = 0); + +public: + static Function *Create(const FunctionType *Ty, LinkageTypes Linkage, + const std::string &N = "", Module *M = 0) { + return new(0) Function(Ty, Linkage, N, M); + } + ~Function(); const Type *getReturnType() const; // Return the type of the ret val @@ -133,7 +129,7 @@ public: /// The particular intrinsic functions which correspond to this value are /// defined in llvm/Intrinsics.h. /// - unsigned getIntrinsicID(bool noAssert = false) const; + unsigned getIntrinsicID() const; bool isIntrinsic() const { return getIntrinsicID() != 0; } /// getCallingConv()/setCallingConv(uint) - These method get and set the @@ -144,41 +140,122 @@ public: SubclassData = (SubclassData & 1) | (CC << 1); } - /// Obtains a constant pointer to the ParamAttrsList object which holds the - /// parameter attributes information, if any. - /// @returns 0 if no parameter attributes have been set. - /// @brief Get the parameter attributes. - const ParamAttrsList *getParamAttrs() const { return ParamAttrs; } - - /// Sets the parameter attributes for this Function. To construct a - /// ParamAttrsList, see ParameterAttributes.h - /// @brief Set the parameter attributes. - void setParamAttrs(const ParamAttrsList *attrs); - - /// hasCollector/getCollector/setCollector/clearCollector - The name of the - /// garbage collection algorithm to use during code generation. - bool hasCollector() const; - const char *getCollector() const; - void setCollector(const char *Str); - void clearCollector(); + /// getAttributes - Return the attribute list for this Function. + /// + const AttrListPtr &getAttributes() const { return AttributeList; } + + /// setAttributes - Set the attribute list for this Function. + /// + void setAttributes(const AttrListPtr &attrs) { AttributeList = attrs; } + + /// hasFnAttr - Return true if this function has the given attribute. + bool hasFnAttr(Attributes N) const { + // Function Attributes are stored at ~0 index + return AttributeList.paramHasAttr(~0U, N); + } + + /// addFnAttr - Add function attributes to this function. + /// + void addFnAttr(Attributes N) { + // Function Attributes are stored at ~0 index + addAttribute(~0U, N); + } + + /// removeFnAttr - Remove function attributes from this function. + /// + void removeFnAttr(Attributes N) { + // Function Attributes are stored at ~0 index + removeAttribute(~0U, N); + } + + /// hasGC/getGC/setGC/clearGC - The name of the garbage collection algorithm + /// to use during code generation. + bool hasGC() const; + const char *getGC() const; + void setGC(const char *Str); + void clearGC(); /// @brief Determine whether the function has the given attribute. - bool paramHasAttr(uint16_t i, unsigned attr) const; + bool paramHasAttr(unsigned i, Attributes attr) const { + return AttributeList.paramHasAttr(i, attr); + } + + /// addAttribute - adds the attribute to the list of attributes. + void addAttribute(unsigned i, Attributes attr); - /// @brief Determine if the function cannot return. - bool doesNotReturn() const; + /// removeAttribute - removes the attribute from the list of attributes. + void removeAttribute(unsigned i, Attributes attr); - /// @brief Determine if the function cannot unwind. - bool doesNotThrow() const; + /// @brief Extract the alignment for a call or parameter (0=unknown). + unsigned getParamAlignment(unsigned i) const { + return AttributeList.getParamAlignment(i); + } /// @brief Determine if the function does not access memory. - bool doesNotAccessMemory() const; + bool doesNotAccessMemory() const { + return hasFnAttr(Attribute::ReadNone); + } + void setDoesNotAccessMemory(bool DoesNotAccessMemory = true) { + if (DoesNotAccessMemory) addFnAttr(Attribute::ReadNone); + else removeFnAttr(Attribute::ReadNone); + } /// @brief Determine if the function does not access or only reads memory. - bool onlyReadsMemory() const; + bool onlyReadsMemory() const { + return doesNotAccessMemory() || hasFnAttr(Attribute::ReadOnly); + } + void setOnlyReadsMemory(bool OnlyReadsMemory = true) { + if (OnlyReadsMemory) addFnAttr(Attribute::ReadOnly); + else removeFnAttr(Attribute::ReadOnly | Attribute::ReadNone); + } + + /// @brief Determine if the function cannot return. + bool doesNotReturn() const { + return hasFnAttr(Attribute::NoReturn); + } + void setDoesNotReturn(bool DoesNotReturn = true) { + if (DoesNotReturn) addFnAttr(Attribute::NoReturn); + else removeFnAttr(Attribute::NoReturn); + } + + /// @brief Determine if the function cannot unwind. + bool doesNotThrow() const { + return hasFnAttr(Attribute::NoUnwind); + } + void setDoesNotThrow(bool DoesNotThrow = true) { + if (DoesNotThrow) addFnAttr(Attribute::NoUnwind); + else removeFnAttr(Attribute::NoUnwind); + } + + /// @brief Determine if the function returns a structure through first + /// pointer argument. + bool hasStructRetAttr() const { + return paramHasAttr(1, Attribute::StructRet); + } + + /// @brief Determine if the parameter does not alias other parameters. + /// @param n The parameter to check. 1 is the first parameter, 0 is the return + bool doesNotAlias(unsigned n) const { + return paramHasAttr(n, Attribute::NoAlias); + } + void setDoesNotAlias(unsigned n, bool DoesNotAlias = true) { + if (DoesNotAlias) addAttribute(n, Attribute::NoAlias); + else removeAttribute(n, Attribute::NoAlias); + } + + /// @brief Determine if the parameter can be captured. + /// @param n The parameter to check. 1 is the first parameter, 0 is the return + bool doesNotCapture(unsigned n) const { + return paramHasAttr(n, Attribute::NoCapture); + } + void setDoesNotCapture(unsigned n, bool DoesNotCapture = true) { + if (DoesNotCapture) addAttribute(n, Attribute::NoCapture); + else removeAttribute(n, Attribute::NoCapture); + } - /// @brief Determine if the function returns a structure. - bool isStructReturn() const; + /// copyAttributesFrom - copy all additional attributes (those not needed to + /// create a Function) from the Function Src to this one. + void copyAttributesFrom(const GlobalValue *Src); /// deleteBody - This method deletes the body of the function, and converts /// the linkage to external. @@ -191,12 +268,12 @@ public: /// removeFromParent - This method unlinks 'this' from the containing module, /// but does not delete it. /// - void removeFromParent(); + virtual void removeFromParent(); /// eraseFromParent - This method unlinks 'this' from the containing module /// and deletes it. /// - void eraseFromParent(); + virtual void eraseFromParent(); /// Get the underlying elements of the Function... the basic block list is @@ -264,10 +341,6 @@ public: size_t arg_size() const; bool arg_empty() const; - virtual void print(std::ostream &OS) const { print(OS, 0); } - void print(std::ostream *OS) const { if (OS) print(*OS); } - void print(std::ostream &OS, AssemblyAnnotationWriter *AAW) const; - /// viewCFG - This function is meant for use from the debugger. You can just /// say 'call F->viewCFG()' and a ghostview window should pop up from the /// program, displaying the CFG of the current function with the code for each