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//===- ReplayInlineAdvisor.h - Replay Inline Advisor interface -*- 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
//
//===----------------------------------------------------------------------===//
//
#ifndef LLVM_ANALYSIS_REPLAYINLINEADVISOR_H
#define LLVM_ANALYSIS_REPLAYINLINEADVISOR_H
#include "llvm/ADT/StringSet.h"
#include "llvm/Analysis/InlineAdvisor.h"
namespace llvm {
class CallBase;
class Function;
class LLVMContext;
class Module;
struct CallSiteFormat {
enum class Format : int {
Line,
LineColumn,
LineDiscriminator,
LineColumnDiscriminator
};
bool outputColumn() const {
return OutputFormat == Format::LineColumn ||
OutputFormat == Format::LineColumnDiscriminator;
}
bool outputDiscriminator() const {
return OutputFormat == Format::LineDiscriminator ||
OutputFormat == Format::LineColumnDiscriminator;
}
Format OutputFormat;
};
/// Replay Inliner Setup
struct ReplayInlinerSettings {
enum class Scope : int { Function, Module };
enum class Fallback : int { Original, AlwaysInline, NeverInline };
StringRef ReplayFile;
Scope ReplayScope;
Fallback ReplayFallback;
CallSiteFormat ReplayFormat;
};
/// Get call site location as a string with the given format
std::string formatCallSiteLocation(DebugLoc DLoc, const CallSiteFormat &Format);
std::unique_ptr<InlineAdvisor>
getReplayInlineAdvisor(Module &M, FunctionAnalysisManager &FAM,
LLVMContext &Context,
std::unique_ptr<InlineAdvisor> OriginalAdvisor,
const ReplayInlinerSettings &ReplaySettings,
bool EmitRemarks, InlineContext IC);
/// Replay inline advisor that uses optimization remarks from inlining of
/// previous build to guide current inlining. This is useful for inliner tuning.
class ReplayInlineAdvisor : public InlineAdvisor {
public:
ReplayInlineAdvisor(Module &M, FunctionAnalysisManager &FAM,
LLVMContext &Context,
std::unique_ptr<InlineAdvisor> OriginalAdvisor,
const ReplayInlinerSettings &ReplaySettings,
bool EmitRemarks, InlineContext IC);
std::unique_ptr<InlineAdvice> getAdviceImpl(CallBase &CB) override;
bool areReplayRemarksLoaded() const { return HasReplayRemarks; }
private:
bool hasInlineAdvice(Function &F) const {
return (ReplaySettings.ReplayScope ==
ReplayInlinerSettings::Scope::Module) ||
CallersToReplay.contains(F.getName());
}
std::unique_ptr<InlineAdvisor> OriginalAdvisor;
bool HasReplayRemarks = false;
const ReplayInlinerSettings ReplaySettings;
bool EmitRemarks = false;
StringMap<bool> InlineSitesFromRemarks;
StringSet<> CallersToReplay;
};
} // namespace llvm
#endif // LLVM_ANALYSIS_REPLAYINLINEADVISOR_H
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