llvm-project/llvm/tools/llvm-exegesis/lib/SnippetRepetitor.h
Craig Topper ff1b01bb78
[llvm-exegesis] Begin replacing unsigned with MCRegister. NFC (#123109)
Some of this was needed to fix implicit conversions from MCRegister to
unsigned when calling getReg() on MCOperand for example.

The majority was done by reviewing parts of the code that dealt with
registers, converting them to MCRegister and then seeing what new
implicit conversions were created and fixing those.

There were a few places where I used MCPhysReg instead of MCRegiser for
static arrays since its uint16_t instead of unsigned.
2025-01-16 08:23:46 -08:00

56 lines
1.7 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(Benchmark::RepetitionModeE Mode, const LLVMState &State,
MCRegister LoopRegister);
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, unsigned LoopBodySize,
bool CleanupMemory) const = 0;
explicit SnippetRepetitor(const LLVMState &State) : State(State) {}
protected:
const LLVMState &State;
};
} // namespace exegesis
} // namespace llvm
#endif