diff options
-rw-r--r-- | llvm/include/llvm/IR/BasicBlock.h | 27 | ||||
-rw-r--r-- | llvm/include/llvm/IR/Function.h | 20 | ||||
-rw-r--r-- | llvm/lib/IR/BasicBlock.cpp | 4 |
3 files changed, 28 insertions, 23 deletions
diff --git a/llvm/include/llvm/IR/BasicBlock.h b/llvm/include/llvm/IR/BasicBlock.h index 39ce37359bf..3d6c69b5ac6 100644 --- a/llvm/include/llvm/IR/BasicBlock.h +++ b/llvm/include/llvm/IR/BasicBlock.h @@ -28,6 +28,23 @@ class LandingPadInst; class TerminatorInst; class LLVMContext; class BlockAddress; +class Function; + +// Traits for intrusive list of basic blocks... +template<> struct ilist_traits<BasicBlock> + : public SymbolTableListTraits<BasicBlock, Function> { + + BasicBlock *createSentinel() const; + 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); +private: + mutable ilist_half_node<BasicBlock> Sentinel; +}; /// \brief LLVM Basic Block Representation @@ -151,7 +168,9 @@ public: void removeFromParent(); /// \brief Unlink 'this' from the containing function and delete it. - void eraseFromParent(); + /// + // \returns an iterator pointing to the element after the erased one. + iplist<BasicBlock>::iterator eraseFromParent(); /// \brief Unlink this basic block from its current function and insert it /// into the function that \p MovePos lives in, right before \p MovePos. @@ -307,6 +326,12 @@ private: } }; +// createSentinel is used to get hold of the node that marks the end of the +// list... (same trick used here as in ilist_traits<Instruction>) +inline BasicBlock *ilist_traits<BasicBlock>::createSentinel() const { + return static_cast<BasicBlock*>(&Sentinel); +} + // Create wrappers for C Binding types (see CBindingWrapping.h). DEFINE_SIMPLE_CONVERSION_FUNCTIONS(BasicBlock, LLVMBasicBlockRef) diff --git a/llvm/include/llvm/IR/Function.h b/llvm/include/llvm/IR/Function.h index 0cd5afb2dd0..11a2154a9c5 100644 --- a/llvm/include/llvm/IR/Function.h +++ b/llvm/include/llvm/IR/Function.h @@ -31,26 +31,6 @@ namespace llvm { class FunctionType; class LLVMContext; -// Traits for intrusive list of basic blocks... -template<> struct ilist_traits<BasicBlock> - : public SymbolTableListTraits<BasicBlock, Function> { - - // createSentinel is used to get hold of the node that marks the end of the - // list... (same trick used here as in ilist_traits<Instruction>) - BasicBlock *createSentinel() const { - return static_cast<BasicBlock*>(&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); -private: - mutable ilist_half_node<BasicBlock> Sentinel; -}; - template<> struct ilist_traits<Argument> : public SymbolTableListTraits<Argument, Function> { diff --git a/llvm/lib/IR/BasicBlock.cpp b/llvm/lib/IR/BasicBlock.cpp index fe38385d341..23ec7052954 100644 --- a/llvm/lib/IR/BasicBlock.cpp +++ b/llvm/lib/IR/BasicBlock.cpp @@ -94,8 +94,8 @@ void BasicBlock::removeFromParent() { getParent()->getBasicBlockList().remove(this); } -void BasicBlock::eraseFromParent() { - getParent()->getBasicBlockList().erase(this); +iplist<BasicBlock>::iterator BasicBlock::eraseFromParent() { + return getParent()->getBasicBlockList().erase(this); } /// Unlink this basic block from its current function and |