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Declare Sentinel fragments as mutable to get rid
of some pointless casting. This fragment logically does not belong to ilist anyway, but to "ghostly" NodeType. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65843 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -38,14 +38,14 @@ template<> struct ilist_traits<Instruction>
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// NodeTy, which becomes the sentinel. Dereferencing the sentinel is
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// forbidden (save the ilist_node<NodeTy>) so no one will ever notice
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// the superposition.
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return const_cast<Instruction*>(static_cast<const Instruction*>(&Sentinel));
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return static_cast<Instruction*>(&Sentinel);
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}
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static void destroySentinel(Instruction*) {}
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static iplist<Instruction> &getList(BasicBlock *BB);
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static ValueSymbolTable *getSymTab(BasicBlock *ItemParent);
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static int getListOffset();
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private:
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ilist_node<Instruction> Sentinel;
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mutable ilist_node<Instruction> Sentinel;
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};
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/// This represents a single basic block in LLVM. A basic block is simply a
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@ -35,28 +35,28 @@ template<> struct ilist_traits<BasicBlock>
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// createSentinel is used to get hold of the node that marks the end of the
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// list... (same trick used here as in ilist_traits<Instruction>)
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BasicBlock *createSentinel() const {
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return const_cast<BasicBlock*>(static_cast<const BasicBlock*>(&Sentinel));
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return static_cast<BasicBlock*>(&Sentinel);
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}
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static void destroySentinel(BasicBlock*) {}
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static iplist<BasicBlock> &getList(Function *F);
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static ValueSymbolTable *getSymTab(Function *ItemParent);
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static int getListOffset();
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private:
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ilist_node<BasicBlock> Sentinel;
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mutable ilist_node<BasicBlock> Sentinel;
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};
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template<> struct ilist_traits<Argument>
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: public SymbolTableListTraits<Argument, Function> {
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Argument *createSentinel() const {
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return const_cast<Argument*>(static_cast<const Argument*>(&Sentinel));
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return static_cast<Argument*>(&Sentinel);
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}
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static void destroySentinel(Argument*) {}
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static iplist<Argument> &getList(Function *F);
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static ValueSymbolTable *getSymTab(Function *ItemParent);
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static int getListOffset();
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private:
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ilist_node<Argument> Sentinel;
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mutable ilist_node<Argument> Sentinel;
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};
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class Function : public GlobalValue, public Annotable,
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