X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=include%2Fllvm%2FFunction.h;h=04c1442400e42cfd64e6943aec8a57f1c618f37c;hb=617dd7baa6dfd3a7b5ee72ace37f6b6aeaa6006b;hp=b80090942300fa67f119a6fa1e86278cc04f38df;hpb=b700c3f36753c09acfd4afe3378aacfc23963017;p=oota-llvm.git diff --git a/include/llvm/Function.h b/include/llvm/Function.h index b8009094230..04c1442400e 100644 --- a/include/llvm/Function.h +++ b/include/llvm/Function.h @@ -27,28 +27,43 @@ namespace llvm { class FunctionType; +class LLVMContext; -// Traits for intrusive list of instructions... +// Traits for intrusive list of basic blocks... template<> struct ilist_traits : public SymbolTableListTraits { - // createSentinel is used to create a node that marks the end of the list... - static BasicBlock *createSentinel(); - static void destroySentinel(BasicBlock *BB) { delete BB; } - static iplist &getList(Function *F); + // createSentinel is used to get hold of the node that marks the end of the + // list... (same trick used here as in ilist_traits) + BasicBlock *createSentinel() const { + return static_cast(&Sentinel); + } + static void destroySentinel(BasicBlock*) {} + + BasicBlock *provideInitialHead() const { return createSentinel(); } + BasicBlock *ensureHead(BasicBlock*) const { return createSentinel(); } + static void noteHead(BasicBlock*, BasicBlock*) {} + static ValueSymbolTable *getSymTab(Function *ItemParent); - static int getListOffset(); +private: + mutable ilist_node Sentinel; }; template<> struct ilist_traits : public SymbolTableListTraits { - // createSentinel is used to create a node that marks the end of the list... - static Argument *createSentinel(); - static void destroySentinel(Argument *A) { delete A; } - static iplist &getList(Function *F); + Argument *createSentinel() const { + return static_cast(&Sentinel); + } + static void destroySentinel(Argument*) {} + + Argument *provideInitialHead() const { return createSentinel(); } + Argument *ensureHead(Argument*) const { return createSentinel(); } + static void noteHead(Argument*, Argument*) {} + static ValueSymbolTable *getSymTab(Function *ItemParent); - static int getListOffset(); +private: + mutable ilist_node Sentinel; }; class Function : public GlobalValue, public Annotable, @@ -69,7 +84,7 @@ private: BasicBlockListType BasicBlocks; ///< The basic blocks mutable ArgumentListType ArgumentList; ///< The formal arguments ValueSymbolTable *SymTab; ///< Symbol table of args/instructions - PAListPtr ParamAttrs; ///< Parameter attributes + AttrListPtr AttributeList; ///< Parameter attributes // The Calling Convention is stored in Value::SubclassData. /*unsigned CallingConvention;*/ @@ -112,6 +127,10 @@ public: const Type *getReturnType() const; // Return the type of the ret val const FunctionType *getFunctionType() const; // Return the FunctionType for me + /// getContext - Return a pointer to the LLVMContext associated with this + /// function, or NULL if this function is not bound to a context yet. + LLVMContext *getContext() const; + /// isVarArg - Return true if this function takes a variable number of /// arguments. bool isVarArg() const; @@ -129,7 +148,7 @@ 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 @@ -140,26 +159,32 @@ public: SubclassData = (SubclassData & 1) | (CC << 1); } - /// getParamAttrs - Return the parameter attributes for this Function. + /// getAttributes - Return the attribute list for this Function. /// - const PAListPtr &getParamAttrs() const { return ParamAttrs; } + const AttrListPtr &getAttributes() const { return AttributeList; } - /// setParamAttrs - Set the parameter attributes for this Function. + /// setAttributes - Set the attribute list for this Function. /// - void setParamAttrs(const PAListPtr &attrs) { ParamAttrs = attrs; } + 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); + } - /// hasNote - Return true if this function has given note. - bool hasNote(Attributes N) const { - // Notes are stored at ~0 index in parameter attribute list - return (!isDeclaration() && paramHasAttr(~0, N)); + /// addFnAttr - Add function attributes to this function. + /// + void addFnAttr(Attributes N) { + // Function Attributes are stored at ~0 index + addAttribute(~0U, N); } - /// setNotes - Set notes for this function + /// removeFnAttr - Remove function attributes from this function. /// - void setNotes(const Attributes N) { - // Notes are stored at ~0 index in parameter attribute list - addParamAttr(~0, N); + 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 @@ -171,60 +196,80 @@ public: /// @brief Determine whether the function has the given attribute. bool paramHasAttr(unsigned i, Attributes attr) const { - return ParamAttrs.paramHasAttr(i, attr); + return AttributeList.paramHasAttr(i, attr); } - /// addParamAttr - adds the attribute to the list of attributes. - void addParamAttr(unsigned i, Attributes attr); + /// addAttribute - adds the attribute to the list of attributes. + void addAttribute(unsigned i, Attributes attr); - /// removeParamAttr - removes the attribute from the list of attributes. - void removeParamAttr(unsigned i, Attributes attr); + /// removeAttribute - removes the attribute from the list of attributes. + void removeAttribute(unsigned i, Attributes attr); /// @brief Extract the alignment for a call or parameter (0=unknown). unsigned getParamAlignment(unsigned i) const { - return ParamAttrs.getParamAlignment(i); + return AttributeList.getParamAlignment(i); } /// @brief Determine if the function does not access memory. bool doesNotAccessMemory() const { - return paramHasAttr(0, ParamAttr::ReadNone); + return hasFnAttr(Attribute::ReadNone); } void setDoesNotAccessMemory(bool DoesNotAccessMemory = true) { - if (DoesNotAccessMemory) addParamAttr(0, ParamAttr::ReadNone); - else removeParamAttr(0, ParamAttr::ReadNone); + if (DoesNotAccessMemory) addFnAttr(Attribute::ReadNone); + else removeFnAttr(Attribute::ReadNone); } /// @brief Determine if the function does not access or only reads memory. bool onlyReadsMemory() const { - return doesNotAccessMemory() || paramHasAttr(0, ParamAttr::ReadOnly); + return doesNotAccessMemory() || hasFnAttr(Attribute::ReadOnly); } void setOnlyReadsMemory(bool OnlyReadsMemory = true) { - if (OnlyReadsMemory) addParamAttr(0, ParamAttr::ReadOnly); - else removeParamAttr(0, ParamAttr::ReadOnly | ParamAttr::ReadNone); + if (OnlyReadsMemory) addFnAttr(Attribute::ReadOnly); + else removeFnAttr(Attribute::ReadOnly | Attribute::ReadNone); } /// @brief Determine if the function cannot return. bool doesNotReturn() const { - return paramHasAttr(0, ParamAttr::NoReturn); + return hasFnAttr(Attribute::NoReturn); } void setDoesNotReturn(bool DoesNotReturn = true) { - if (DoesNotReturn) addParamAttr(0, ParamAttr::NoReturn); - else removeParamAttr(0, ParamAttr::NoReturn); + if (DoesNotReturn) addFnAttr(Attribute::NoReturn); + else removeFnAttr(Attribute::NoReturn); } /// @brief Determine if the function cannot unwind. bool doesNotThrow() const { - return paramHasAttr(0, ParamAttr::NoUnwind); + return hasFnAttr(Attribute::NoUnwind); } void setDoesNotThrow(bool DoesNotThrow = true) { - if (DoesNotThrow) addParamAttr(0, ParamAttr::NoUnwind); - else removeParamAttr(0, ParamAttr::NoUnwind); + 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, ParamAttr::StructRet); + 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); } /// copyAttributesFrom - copy all additional attributes (those not needed to @@ -261,9 +306,15 @@ public: CheckLazyArguments(); return ArgumentList; } + static iplist Function::*getSublistAccess(Argument*) { + return &Function::ArgumentList; + } const BasicBlockListType &getBasicBlockList() const { return BasicBlocks; } BasicBlockListType &getBasicBlockList() { return BasicBlocks; } + static iplist Function::*getSublistAccess(BasicBlock*) { + return &Function::BasicBlocks; + } const BasicBlock &getEntryBlock() const { return front(); } BasicBlock &getEntryBlock() { return front(); } @@ -349,15 +400,10 @@ public: /// including any contained basic blocks. /// void dropAllReferences(); - - static unsigned getBasicBlockListOffset() { - Function *Obj = 0; - return unsigned(reinterpret_cast(&Obj->BasicBlocks)); - } - static unsigned getArgumentListOffset() { - Function *Obj = 0; - return unsigned(reinterpret_cast(&Obj->ArgumentList)); - } + + /// hasAddressTaken - returns true if there are any uses of this function + /// other than direct calls or invokes to it. + bool hasAddressTaken() const; }; inline ValueSymbolTable * @@ -370,17 +416,6 @@ ilist_traits::getSymTab(Function *F) { return F ? &F->getValueSymbolTable() : 0; } -inline int -ilist_traits::getListOffset() { - return Function::getBasicBlockListOffset(); -} - -inline int -ilist_traits::getListOffset() { - return Function::getArgumentListOffset(); -} - - } // End llvm namespace #endif