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      1 //===-- Transform/Utils/FunctionUtils.h - Function Utils --------*- C++ -*-===//
      2 //
      3 //                     The LLVM Compiler Infrastructure
      4 //
      5 // This file is distributed under the University of Illinois Open Source
      6 // License. See LICENSE.TXT for details.
      7 //
      8 //===----------------------------------------------------------------------===//
      9 //
     10 // This family of transformations manipulate LLVM functions.
     11 //
     12 //===----------------------------------------------------------------------===//
     13 
     14 #ifndef LLVM_TRANSFORMS_UTILS_FUNCTION_H
     15 #define LLVM_TRANSFORMS_UTILS_FUNCTION_H
     16 
     17 #include "llvm/ADT/ArrayRef.h"
     18 #include <vector>
     19 
     20 namespace llvm {
     21   class BasicBlock;
     22   class DominatorTree;
     23   class Function;
     24   class Loop;
     25 
     26   /// ExtractCodeRegion - Rip out a sequence of basic blocks into a new
     27   /// function.
     28   ///
     29   Function* ExtractCodeRegion(DominatorTree& DT,
     30                               ArrayRef<BasicBlock*> code,
     31                               bool AggregateArgs = false);
     32 
     33   /// ExtractLoop - Rip out a natural loop into a new function.
     34   ///
     35   Function* ExtractLoop(DominatorTree& DT, Loop *L,
     36                         bool AggregateArgs = false);
     37 
     38   /// ExtractBasicBlock - Rip out a basic block (and the associated landing pad)
     39   /// into a new function.
     40   ///
     41   Function* ExtractBasicBlock(ArrayRef<BasicBlock*> BBs,
     42                               bool AggregateArgs = false);
     43 }
     44 
     45 #endif
     46