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a normal interface for it in Passes.h. This gives us essentially a single interface for running pass managers which are provided from the bottom of the LLVM stack through interfaces at the top of the LLVM stack that populate them with all of the different analyses available throughout. It also means there is a single blob of code that needs to include all of the pass headers and needs to deal with the registry of passes and parsing names. No functionality changed intended, should just be cleanup. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@225237 91177308-0d34-0410-b5e6-96231b3b80d8
82 lines
3.1 KiB
C++
82 lines
3.1 KiB
C++
//===- Passes.h - Parsing, selection, and running of passes -----*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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/// \file
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///
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/// Interfaces for producing common pass manager configurations and parsing
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/// textual pass specifications.
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///
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_TOOLS_OPT_PASSES_H
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#define LLVM_TOOLS_OPT_PASSES_H
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#include "llvm/ADT/StringRef.h"
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namespace llvm {
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class CGSCCAnalysisManager;
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class FunctionAnalysisManager;
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class ModuleAnalysisManager;
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class ModulePassManager;
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/// \brief Registers all available module analysis passes.
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///
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/// This is an interface that can be used to populate a \c
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/// ModuleAnalysisManager with all registered module analyses. Callers can
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/// still manually register any additional analyses.
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void registerModuleAnalyses(ModuleAnalysisManager &MAM);
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/// \brief Registers all available CGSCC analysis passes.
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///
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/// This is an interface that can be used to populate a \c CGSCCAnalysisManager
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/// with all registered CGSCC analyses. Callers can still manually register any
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/// additional analyses.
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void registerCGSCCAnalyses(CGSCCAnalysisManager &CGAM);
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/// \brief Registers all available function analysis passes.
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///
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/// This is an interface that can be used to populate a \c
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/// FunctionAnalysisManager with all registered function analyses. Callers can
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/// still manually register any additional analyses.
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void registerFunctionAnalyses(FunctionAnalysisManager &FAM);
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/// \brief Parse a textual pass pipeline description into a \c ModulePassManager.
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///
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/// The format of the textual pass pipeline description looks something like:
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///
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/// module(function(instcombine,sroa),dce,cgscc(inliner,function(...)),...)
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///
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/// Pass managers have ()s describing the nest structure of passes. All passes
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/// are comma separated. As a special shortcut, if the very first pass is not
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/// a module pass (as a module pass manager is), this will automatically form
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/// the shortest stack of pass managers that allow inserting that first pass.
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/// So, assuming function passes 'fpassN', CGSCC passes 'cgpassN', and loop passes
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/// 'lpassN', all of these are valid:
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///
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/// fpass1,fpass2,fpass3
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/// cgpass1,cgpass2,cgpass3
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/// lpass1,lpass2,lpass3
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///
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/// And they are equivalent to the following (resp.):
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///
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/// module(function(fpass1,fpass2,fpass3))
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/// module(cgscc(cgpass1,cgpass2,cgpass3))
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/// module(function(loop(lpass1,lpass2,lpass3)))
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///
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/// This shortcut is especially useful for debugging and testing small pass
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/// combinations. Note that these shortcuts don't introduce any other magic. If
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/// the sequence of passes aren't all the exact same kind of pass, it will be
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/// an error. You cannot mix different levels implicitly, you must explicitly
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/// form a pass manager in which to nest passes.
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bool parsePassPipeline(ModulePassManager &MPM, StringRef PipelineText,
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bool VerifyEachPass = true);
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}
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#endif
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