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//===-- llvm/CodeGen/PseudoSourceValueManager.h -----------------*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// This file contains the declaration of the PseudoSourceValueManager class.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_CODEGEN_PSEUDOSOURCEVALUEMANAGER_H
#define LLVM_CODEGEN_PSEUDOSOURCEVALUEMANAGER_H
#include "llvm/ADT/SmallVector.h"
#include "llvm/ADT/StringMap.h"
#include "llvm/CodeGen/PseudoSourceValue.h"
#include "llvm/IR/ValueMap.h"
namespace llvm {
class GlobalValue;
class TargetMachine;
/// Manages creation of pseudo source values.
class PseudoSourceValueManager {
const TargetMachine &TM;
const PseudoSourceValue StackPSV, GOTPSV, JumpTablePSV, ConstantPoolPSV;
SmallVector<std::unique_ptr<FixedStackPseudoSourceValue>> FSValues;
StringMap<std::unique_ptr<const ExternalSymbolPseudoSourceValue>>
ExternalCallEntries;
ValueMap<const GlobalValue *,
std::unique_ptr<const GlobalValuePseudoSourceValue>>
GlobalCallEntries;
public:
PseudoSourceValueManager(const TargetMachine &TM);
/// Return a pseudo source value referencing the area below the stack frame of
/// a function, e.g., the argument space.
const PseudoSourceValue *getStack();
/// Return a pseudo source value referencing the global offset table
/// (or something the like).
const PseudoSourceValue *getGOT();
/// Return a pseudo source value referencing the constant pool. Since constant
/// pools are constant, this doesn't need to identify a specific constant
/// pool entry.
const PseudoSourceValue *getConstantPool();
/// Return a pseudo source value referencing a jump table. Since jump tables
/// are constant, this doesn't need to identify a specific jump table.
const PseudoSourceValue *getJumpTable();
/// Return a pseudo source value referencing a fixed stack frame entry,
/// e.g., a spill slot.
const PseudoSourceValue *getFixedStack(int FI);
const PseudoSourceValue *getGlobalValueCallEntry(const GlobalValue *GV);
const PseudoSourceValue *getExternalSymbolCallEntry(const char *ES);
};
} // end namespace llvm
#endif
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