a1ca3af31e
Here's a high level summary of the changes in this patch. For more information on rational, see the RFC. (https://discourse.llvm.org/t/rfc-a-unified-lto-bitcode-frontend/61774). - Add config parameter to LTO backend, specifying which LTO mode is desired when using unified LTO. - Add unified LTO flag to the summary index for efficiency. Unified LTO modules can be detected without parsing the module. - Make sure that the ModuleID is generated by incorporating more types of symbols. Differential Revision: https://reviews.llvm.org/D123803
80 lines
2.7 KiB
C++
80 lines
2.7 KiB
C++
//===- NewPMDriver.h - Function to drive opt with the new PM ----*- 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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/// \file
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///
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/// A single function which is called to drive the opt behavior for the new
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/// PassManager.
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///
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/// This is only in a separate TU with a header to avoid including all of the
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/// old pass manager headers and the new pass manager headers into the same
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/// file. Eventually all of the routines here will get folded back into
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/// opt.cpp.
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///
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_TOOLS_OPT_NEWPMDRIVER_H
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#define LLVM_TOOLS_OPT_NEWPMDRIVER_H
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#include "llvm/Support/CommandLine.h"
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namespace llvm {
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class StringRef;
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class Module;
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class PassPlugin;
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class TargetMachine;
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class ToolOutputFile;
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class TargetLibraryInfoImpl;
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extern cl::opt<bool> DebugifyEach;
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extern cl::opt<std::string> DebugifyExport;
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extern cl::opt<bool> VerifyEachDebugInfoPreserve;
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extern cl::opt<std::string> VerifyDIPreserveExport;
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namespace opt_tool {
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enum OutputKind {
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OK_NoOutput,
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OK_OutputAssembly,
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OK_OutputBitcode,
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OK_OutputThinLTOBitcode,
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};
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enum VerifierKind { VK_NoVerifier, VK_VerifyOut, VK_VerifyEachPass };
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enum PGOKind {
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NoPGO,
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InstrGen,
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InstrUse,
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SampleUse
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};
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enum CSPGOKind { NoCSPGO, CSInstrGen, CSInstrUse };
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}
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void printPasses(raw_ostream &OS);
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/// Driver function to run the new pass manager over a module.
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///
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/// This function only exists factored away from opt.cpp in order to prevent
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/// inclusion of the new pass manager headers and the old headers into the same
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/// file. It's interface is consequentially somewhat ad-hoc, but will go away
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/// when the transition finishes.
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///
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/// ThinLTOLinkOut is only used when OK is OK_OutputThinLTOBitcode, and can be
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/// nullptr.
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bool runPassPipeline(StringRef Arg0, Module &M, TargetMachine *TM,
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TargetLibraryInfoImpl *TLII, ToolOutputFile *Out,
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ToolOutputFile *ThinLinkOut, ToolOutputFile *OptRemarkFile,
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StringRef PassPipeline, ArrayRef<PassPlugin> PassPlugins,
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opt_tool::OutputKind OK, opt_tool::VerifierKind VK,
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bool ShouldPreserveAssemblyUseListOrder,
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bool ShouldPreserveBitcodeUseListOrder,
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bool EmitSummaryIndex, bool EmitModuleHash,
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bool EnableDebugify, bool VerifyDIPreserve,
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bool UnifiedLTO = false);
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} // namespace llvm
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#endif
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