forked from OSchip/llvm-project
54 lines
1.6 KiB
C++
54 lines
1.6 KiB
C++
//===-- SnippetRepetitor.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
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
///
|
|
/// \file
|
|
/// Defines helpers to fill functions with repetitions of a snippet.
|
|
///
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#ifndef LLVM_TOOLS_LLVM_EXEGESIS_FUNCTIONFILLER_H
|
|
#define LLVM_TOOLS_LLVM_EXEGESIS_FUNCTIONFILLER_H
|
|
|
|
#include "Assembler.h"
|
|
#include "BenchmarkResult.h"
|
|
#include "LlvmState.h"
|
|
#include "llvm/ADT/BitVector.h"
|
|
#include "llvm/CodeGen/MachineFunction.h"
|
|
#include "llvm/MC/MCInst.h"
|
|
#include "llvm/MC/MCInstrInfo.h"
|
|
#include "llvm/Object/Binary.h"
|
|
|
|
namespace llvm {
|
|
namespace exegesis {
|
|
|
|
class SnippetRepetitor {
|
|
public:
|
|
static std::unique_ptr<const SnippetRepetitor>
|
|
Create(InstructionBenchmark::RepetitionModeE Mode, const LLVMState &State);
|
|
|
|
virtual ~SnippetRepetitor();
|
|
|
|
// Returns the set of registers that are reserved by the repetitor.
|
|
virtual BitVector getReservedRegs() const = 0;
|
|
|
|
// Returns a functor that repeats `Instructions` so that the function executes
|
|
// at least `MinInstructions` instructions.
|
|
virtual FillFunction Repeat(ArrayRef<MCInst> Instructions,
|
|
unsigned MinInstructions) const = 0;
|
|
|
|
explicit SnippetRepetitor(const LLVMState &State) : State(State) {}
|
|
|
|
protected:
|
|
const LLVMState &State;
|
|
};
|
|
|
|
} // namespace exegesis
|
|
} // namespace llvm
|
|
|
|
#endif
|