mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-11-23 19:23:23 +01:00
67 lines
2.4 KiB
C++
67 lines
2.4 KiB
C++
//===-- llvm/GVMaterializer.h - Interface for GV materializers --*- C++ -*-===//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file is distributed under the University of Illinois Open Source
|
|
// License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// This file provides an abstract interface for loading a module from some
|
|
// place. This interface allows incremental or random access loading of
|
|
// functions from the file. This is useful for applications like JIT compilers
|
|
// or interprocedural optimizers that do not need the entire program in memory
|
|
// at the same time.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#ifndef LLVM_GVMATERIALIZER_H
|
|
#define LLVM_GVMATERIALIZER_H
|
|
|
|
#include <string>
|
|
|
|
namespace llvm {
|
|
|
|
class Function;
|
|
class GlobalValue;
|
|
class Module;
|
|
|
|
class GVMaterializer {
|
|
protected:
|
|
GVMaterializer() {}
|
|
|
|
public:
|
|
virtual ~GVMaterializer();
|
|
|
|
/// isMaterializable - True if GV can be materialized from whatever backing
|
|
/// store this GVMaterializer uses and has not been materialized yet.
|
|
virtual bool isMaterializable(const GlobalValue *GV) const = 0;
|
|
|
|
/// isDematerializable - True if GV has been materialized and can be
|
|
/// dematerialized back to whatever backing store this GVMaterializer uses.
|
|
virtual bool isDematerializable(const GlobalValue *GV) const = 0;
|
|
|
|
/// Materialize - make sure the given GlobalValue is fully read. If the
|
|
/// module is corrupt, this returns true and fills in the optional string with
|
|
/// information about the problem. If successful, this returns false.
|
|
///
|
|
virtual bool Materialize(GlobalValue *GV, std::string *ErrInfo = 0) = 0;
|
|
|
|
/// Dematerialize - If the given GlobalValue is read in, and if the
|
|
/// GVMaterializer supports it, release the memory for the GV, and set it up
|
|
/// to be materialized lazily. If the Materializer doesn't support this
|
|
/// capability, this method is a noop.
|
|
///
|
|
virtual void Dematerialize(GlobalValue *) {}
|
|
|
|
/// MaterializeModule - make sure the entire Module has been completely read.
|
|
/// On error, this returns true and fills in the optional string with
|
|
/// information about the problem. If successful, this returns false.
|
|
///
|
|
virtual bool MaterializeModule(Module *M, std::string *ErrInfo = 0) = 0;
|
|
};
|
|
|
|
} // End llvm namespace
|
|
|
|
#endif
|