Server : Apache/2.4.41 (Ubuntu) System : Linux absol.cf 5.4.0-198-generic #218-Ubuntu SMP Fri Sep 27 20:18:53 UTC 2024 x86_64 User : www-data ( 33) PHP Version : 7.4.33 Disable Function : pcntl_alarm,pcntl_fork,pcntl_waitpid,pcntl_wait,pcntl_wifexited,pcntl_wifstopped,pcntl_wifsignaled,pcntl_wifcontinued,pcntl_wexitstatus,pcntl_wtermsig,pcntl_wstopsig,pcntl_signal,pcntl_signal_get_handler,pcntl_signal_dispatch,pcntl_get_last_error,pcntl_strerror,pcntl_sigprocmask,pcntl_sigwaitinfo,pcntl_sigtimedwait,pcntl_exec,pcntl_getpriority,pcntl_setpriority,pcntl_async_signals,pcntl_unshare, Directory :  /proc/thread-self/root/usr/lib/llvm-6.0/include/polly/

Upload File : current_dir [ Writeable ] document_root [ Writeable ]

//===- polly/PolyhedralInfo.h - PolyhedralInfo class definition -*- C++ -*-===//
//
//                     The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
///
/// This file contains the declaration of the PolyhedralInfo class, which will
/// provide an interface to expose polyhedral analysis information of Polly.
///
/// This is work in progress. We will add more API's as and when deemed
/// required.
//===----------------------------------------------------------------------===///

#ifndef POLLY_POLYHEDRAL_INFO_H
#define POLLY_POLYHEDRAL_INFO_H

#include "llvm/Pass.h"
#include "isl/ctx.h"
#include "isl/union_map.h"

namespace llvm {
class Loop;
} // namespace llvm

namespace polly {

class Scop;
class ScopInfo;
class DependenceInfoWrapperPass;

class PolyhedralInfo : public llvm::FunctionPass {
public:
  static char ID; // Pass identification, replacement for typeid

  /// Construct a new PolyhedralInfo pass.
  PolyhedralInfo() : FunctionPass(ID) {}
  ~PolyhedralInfo() {}

  /// Check if a given loop is parallel.
  ///
  /// @param L The loop.
  ///
  /// @return  Returns true, if loop is parallel false otherwise.
  bool isParallel(llvm::Loop *L) const;

  /// Return the SCoP containing the @p L loop.
  ///
  /// @param L The loop.
  ///
  /// @return  Returns the SCoP containing the given loop.
  ///          Returns null if the loop is not contained in any SCoP.
  const Scop *getScopContainingLoop(llvm::Loop *L) const;

  /// Computes the partial schedule for the given @p L loop.
  ///
  /// @param S The SCoP containing the given loop
  /// @param L The loop.
  ///
  /// @return  Returns the partial schedule for the given loop
  __isl_give isl_union_map *getScheduleForLoop(const Scop *S,
                                               llvm::Loop *L) const;

  /// Get the SCoP and dependence analysis information for @p F.
  bool runOnFunction(llvm::Function &F) override;

  /// Release the internal memory.
  void releaseMemory() override {}

  /// Print to @p OS if each dimension of a loop nest is parallel or not.
  void print(llvm::raw_ostream &OS,
             const llvm::Module *M = nullptr) const override;

  /// Register all analyses and transformation required.
  void getAnalysisUsage(llvm::AnalysisUsage &AU) const override;

private:
  /// Check if a given loop is parallel or vectorizable.
  ///
  /// @param L             The loop.
  /// @param MinDepDistPtr If not nullptr, the minimal dependence distance will
  ///                      be returned at the address of that pointer
  ///
  /// @return  Returns true if loop is parallel or vectorizable, false
  ///          otherwise.
  bool checkParallel(llvm::Loop *L,
                     __isl_give isl_pw_aff **MinDepDistPtr = nullptr) const;

  ScopInfo *SI;
  DependenceInfoWrapperPass *DI;
};

} // end namespace polly

namespace llvm {
class PassRegistry;
void initializePolyhedralInfoPass(llvm::PassRegistry &);
} // namespace llvm

#endif