55 lines
1.7 KiB
C++
55 lines
1.7 KiB
C++
//===-- SnippetRepetitor.h --------------------------------------*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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///
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/// \file
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/// Defines helpers to fill functions with repetitions of a snippet.
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///
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_TOOLS_LLVM_EXEGESIS_FUNCTIONFILLER_H
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#define LLVM_TOOLS_LLVM_EXEGESIS_FUNCTIONFILLER_H
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#include "Assembler.h"
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#include "BenchmarkResult.h"
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#include "LlvmState.h"
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#include "llvm/ADT/BitVector.h"
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#include "llvm/CodeGen/MachineFunction.h"
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#include "llvm/MC/MCInst.h"
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#include "llvm/MC/MCInstrInfo.h"
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#include "llvm/Object/Binary.h"
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namespace llvm {
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namespace exegesis {
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class SnippetRepetitor {
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public:
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static std::unique_ptr<const SnippetRepetitor>
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Create(InstructionBenchmark::RepetitionModeE Mode, const LLVMState &State);
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virtual ~SnippetRepetitor();
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// Returns the set of registers that are reserved by the repetitor.
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virtual BitVector getReservedRegs() const = 0;
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// Returns a functor that repeats `Instructions` so that the function executes
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// at least `MinInstructions` instructions.
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virtual FillFunction Repeat(ArrayRef<MCInst> Instructions,
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unsigned MinInstructions,
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unsigned LoopBodySize) const = 0;
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explicit SnippetRepetitor(const LLVMState &State) : State(State) {}
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protected:
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const LLVMState &State;
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};
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} // namespace exegesis
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} // namespace llvm
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#endif
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