¶llvm::Loop* cloneLoopWithPreheader(
    llvm::BasicBlock* Before,
    llvm::BasicBlock* LoopDomBB,
    llvm::Loop* OrigLoop,
    llvm::ValueToValueMapTy& VMap,
    const llvm::Twine& NameSuffix,
    llvm::LoopInfo* LI,
    llvm::DominatorTree* DT,
    SmallVectorImpl<llvm::BasicBlock*>& Blocks)

Description

Clones a loop \p OrigLoop. Returns the loop and the blocks in \p Blocks. Updates LoopInfo and DominatorTree assuming the loop is dominated by block\p LoopDomBB. Insert the new blocks before block specified in \p Before. Note: Only innermost loops are supported.

Declared at: llvm/include/llvm/Transforms/Utils/Cloning.h:246

Parameters

llvm::BasicBlock* Before

llvm::BasicBlock* LoopDomBB

llvm::Loop* OrigLoop

llvm::ValueToValueMapTy& VMap

const llvm::Twine& NameSuffix

llvm::LoopInfo* LI

llvm::DominatorTree* DT

SmallVectorImpl<llvm::BasicBlock*>& Blocks