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      1 //===- BasicInliner.h - Basic function level inliner ------------*- 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 file defines a simple function based inliner that does not use
     11 // call graph information.
     12 //
     13 //===----------------------------------------------------------------------===//
     14 
     15 #ifndef BASICINLINER_H
     16 #define BASICINLINER_H
     17 
     18 #include "llvm/Analysis/InlineCost.h"
     19 
     20 namespace llvm {
     21 
     22   class Function;
     23   class TargetData;
     24   struct BasicInlinerImpl;
     25 
     26   /// BasicInliner - BasicInliner provides function level inlining interface.
     27   /// Clients provide list of functions which are inline without using
     28   /// module level call graph information. Note that the BasicInliner is
     29   /// free to delete a function if it is inlined into all call sites.
     30   class BasicInliner {
     31   public:
     32 
     33     explicit BasicInliner(TargetData *T = NULL);
     34     ~BasicInliner();
     35 
     36     /// addFunction - Add function into the list of functions to process.
     37     /// All functions must be inserted using this interface before invoking
     38     /// inlineFunctions().
     39     void addFunction(Function *F);
     40 
     41     /// neverInlineFunction - Sometimes a function is never to be inlined
     42     /// because of one or other reason.
     43     void neverInlineFunction(Function *F);
     44 
     45     /// inlineFuctions - Walk all call sites in all functions supplied by
     46     /// client. Inline as many call sites as possible. Delete completely
     47     /// inlined functions.
     48     void inlineFunctions();
     49 
     50   private:
     51     BasicInlinerImpl *Impl;
     52   };
     53 }
     54 
     55 #endif
     56