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llvm-project/llvm/lib/Passes/PassBuilder.cpp
Chandler Carruth 6b9816477b [PM] Support invalidation of inner analysis managers from a pass over the outer IR unit. 
Summary:
This never really got implemented, and was very hard to test before
a lot of the refactoring changes to make things more robust. But now we
can test it thoroughly and cleanly, especially at the CGSCC level.

The core idea is that when an inner analysis manager proxy receives the
invalidation event for the outer IR unit, it needs to walk the inner IR
units and propagate it to the inner analysis manager for each of those
units. For example, each function in the SCC needs to get an
invalidation event when the SCC gets one.

The function / module interaction is somewhat boring here. This really
becomes interesting in the face of analysis-backed IR units. This patch
effectively handles all of the CGSCC layer's needs -- both invalidating
SCC analysis and invalidating function analysis when an SCC gets
invalidated.

However, this second aspect doesn't really handle the
LoopAnalysisManager well at this point. That one will need some change
of design in order to fully integrate, because unlike the call graph,
the entire function behind a LoopAnalysis's results can vanish out from
under us, and we won't even have a cached API to access. I'd like to try
to separate solving the loop problems into a subsequent patch though in
order to keep this more focused so I've adapted them to the API and
updated the tests that immediately fail, but I've not added the level of
testing and validation at that layer that I have at the CGSCC layer.

An important aspect of this change is that the proxy for the
FunctionAnalysisManager at the SCC pass layer doesn't work like the
other proxies for an inner IR unit as it doesn't directly manage the
FunctionAnalysisManager and invalidation or clearing of it. This would
create an ever worsening problem of dual ownership of this
responsibility, split between the module-level FAM proxy and this
SCC-level FAM proxy. Instead, this patch changes the SCC-level FAM proxy
to work in terms of the module-level proxy and defer to it to handle
much of the updates. It only does SCC-specific invalidation. This will
become more important in subsequent patches that support more complex
invalidaiton scenarios.

Reviewers: jlebar

Subscribers: mehdi_amini, mcrosier, mzolotukhin, llvm-commits

Differential Revision: https://reviews.llvm.org/D27197

llvm-svn: 289317
2016-12-10 06:34:44 +00:00

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//===- Parsing, selection, and construction of pass pipelines -------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
/// \file
///
/// This file provides the implementation of the PassBuilder based on our
/// static pass registry as well as related functionality. It also provides
/// helpers to aid in analyzing, debugging, and testing passes and pass
/// pipelines.
///
//===----------------------------------------------------------------------===//
#include "llvm/Passes/PassBuilder.h"
#include "llvm/ADT/StringSwitch.h"
#include "llvm/Analysis/AliasAnalysis.h"
#include "llvm/Analysis/AliasAnalysisEvaluator.h"
#include "llvm/Analysis/AssumptionCache.h"
#include "llvm/Analysis/BasicAliasAnalysis.h"
#include "llvm/Analysis/BlockFrequencyInfo.h"
#include "llvm/Analysis/BlockFrequencyInfoImpl.h"
#include "llvm/Analysis/BranchProbabilityInfo.h"
#include "llvm/Analysis/CFGPrinter.h"
#include "llvm/Analysis/CFLAndersAliasAnalysis.h"
#include "llvm/Analysis/CFLSteensAliasAnalysis.h"
#include "llvm/Analysis/CGSCCPassManager.h"
#include "llvm/Analysis/CallGraph.h"
#include "llvm/Analysis/DemandedBits.h"
#include "llvm/Analysis/DependenceAnalysis.h"
#include "llvm/Analysis/DominanceFrontier.h"
#include "llvm/Analysis/GlobalsModRef.h"
#include "llvm/Analysis/IVUsers.h"
#include "llvm/Analysis/LazyCallGraph.h"
#include "llvm/Analysis/LazyValueInfo.h"
#include "llvm/Analysis/LoopAccessAnalysis.h"
#include "llvm/Analysis/LoopInfo.h"
#include "llvm/Analysis/MemoryDependenceAnalysis.h"
#include "llvm/Analysis/ModuleSummaryAnalysis.h"
#include "llvm/Analysis/OptimizationDiagnosticInfo.h"
#include "llvm/Analysis/PostDominators.h"
#include "llvm/Analysis/ProfileSummaryInfo.h"
#include "llvm/Analysis/RegionInfo.h"
#include "llvm/Analysis/ScalarEvolution.h"
#include "llvm/Analysis/ScalarEvolutionAliasAnalysis.h"
#include "llvm/Analysis/ScopedNoAliasAA.h"
#include "llvm/Analysis/TargetLibraryInfo.h"
#include "llvm/Analysis/TargetTransformInfo.h"
#include "llvm/Analysis/TypeBasedAliasAnalysis.h"
#include "llvm/CodeGen/PreISelIntrinsicLowering.h"
#include "llvm/CodeGen/UnreachableBlockElim.h"
#include "llvm/IR/Dominators.h"
#include "llvm/IR/IRPrintingPasses.h"
#include "llvm/IR/PassManager.h"
#include "llvm/IR/Verifier.h"
#include "llvm/Support/Debug.h"
#include "llvm/Support/Regex.h"
#include "llvm/Target/TargetMachine.h"
#include "llvm/Transforms/GCOVProfiler.h"
#include "llvm/Transforms/IPO/AlwaysInliner.h"
#include "llvm/Transforms/IPO/ConstantMerge.h"
#include "llvm/Transforms/IPO/CrossDSOCFI.h"
#include "llvm/Transforms/IPO/DeadArgumentElimination.h"
#include "llvm/Transforms/IPO/ElimAvailExtern.h"
#include "llvm/Transforms/IPO/ForceFunctionAttrs.h"
#include "llvm/Transforms/IPO/FunctionAttrs.h"
#include "llvm/Transforms/IPO/FunctionImport.h"
#include "llvm/Transforms/IPO/GlobalDCE.h"
#include "llvm/Transforms/IPO/GlobalOpt.h"
#include "llvm/Transforms/IPO/GlobalSplit.h"
#include "llvm/Transforms/IPO/InferFunctionAttrs.h"
#include "llvm/Transforms/IPO/Internalize.h"
#include "llvm/Transforms/IPO/LowerTypeTests.h"
#include "llvm/Transforms/IPO/PartialInlining.h"
#include "llvm/Transforms/IPO/SCCP.h"
#include "llvm/Transforms/IPO/StripDeadPrototypes.h"
#include "llvm/Transforms/IPO/WholeProgramDevirt.h"
#include "llvm/Transforms/InstCombine/InstCombine.h"
#include "llvm/Transforms/InstrProfiling.h"
#include "llvm/Transforms/PGOInstrumentation.h"
#include "llvm/Transforms/SampleProfile.h"
#include "llvm/Transforms/Scalar/ADCE.h"
#include "llvm/Transforms/Scalar/AlignmentFromAssumptions.h"
#include "llvm/Transforms/Scalar/BDCE.h"
#include "llvm/Transforms/Scalar/ConstantHoisting.h"
#include "llvm/Transforms/Scalar/CorrelatedValuePropagation.h"
#include "llvm/Transforms/Scalar/DCE.h"
#include "llvm/Transforms/Scalar/DeadStoreElimination.h"
#include "llvm/Transforms/Scalar/EarlyCSE.h"
#include "llvm/Transforms/Scalar/Float2Int.h"
#include "llvm/Transforms/Scalar/GVN.h"
#include "llvm/Transforms/Scalar/GuardWidening.h"
#include "llvm/Transforms/Scalar/IndVarSimplify.h"
#include "llvm/Transforms/Scalar/JumpThreading.h"
#include "llvm/Transforms/Scalar/LICM.h"
#include "llvm/Transforms/Scalar/LoopDataPrefetch.h"
#include "llvm/Transforms/Scalar/LoopDeletion.h"
#include "llvm/Transforms/Scalar/LoopDistribute.h"
#include "llvm/Transforms/Scalar/LoopIdiomRecognize.h"
#include "llvm/Transforms/Scalar/LoopInstSimplify.h"
#include "llvm/Transforms/Scalar/LoopRotation.h"
#include "llvm/Transforms/Scalar/LoopSimplifyCFG.h"
#include "llvm/Transforms/Scalar/LoopStrengthReduce.h"
#include "llvm/Transforms/Scalar/LoopUnrollPass.h"
#include "llvm/Transforms/Scalar/LowerAtomic.h"
#include "llvm/Transforms/Scalar/LowerExpectIntrinsic.h"
#include "llvm/Transforms/Scalar/LowerGuardIntrinsic.h"
#include "llvm/Transforms/Scalar/MemCpyOptimizer.h"
#include "llvm/Transforms/Scalar/MergedLoadStoreMotion.h"
#include "llvm/Transforms/Scalar/NaryReassociate.h"
#include "llvm/Transforms/Scalar/PartiallyInlineLibCalls.h"
#include "llvm/Transforms/Scalar/Reassociate.h"
#include "llvm/Transforms/Scalar/SCCP.h"
#include "llvm/Transforms/Scalar/SROA.h"
#include "llvm/Transforms/Scalar/SimplifyCFG.h"
#include "llvm/Transforms/Scalar/Sink.h"
#include "llvm/Transforms/Scalar/SpeculativeExecution.h"
#include "llvm/Transforms/Scalar/TailRecursionElimination.h"
#include "llvm/Transforms/Utils/AddDiscriminators.h"
#include "llvm/Transforms/Utils/BreakCriticalEdges.h"
#include "llvm/Transforms/Utils/LCSSA.h"
#include "llvm/Transforms/Utils/LibCallsShrinkWrap.h"
#include "llvm/Transforms/Utils/LoopSimplify.h"
#include "llvm/Transforms/Utils/LowerInvoke.h"
#include "llvm/Transforms/Utils/Mem2Reg.h"
#include "llvm/Transforms/Utils/MemorySSA.h"
#include "llvm/Transforms/Utils/NameAnonGlobals.h"
#include "llvm/Transforms/Utils/SimplifyInstructions.h"
#include "llvm/Transforms/Utils/SymbolRewriter.h"
#include "llvm/Transforms/Vectorize/LoopVectorize.h"
#include "llvm/Transforms/Vectorize/SLPVectorizer.h"
#include <type_traits>
using namespace llvm;
static Regex DefaultAliasRegex("^(default|lto-pre-link|lto)<(O[0123sz])>$");
namespace {
/// \brief No-op module pass which does nothing.
struct NoOpModulePass {
PreservedAnalyses run(Module &M, ModuleAnalysisManager &) {
return PreservedAnalyses::all();
}
static StringRef name() { return "NoOpModulePass"; }
};
/// \brief No-op module analysis.
class NoOpModuleAnalysis : public AnalysisInfoMixin<NoOpModuleAnalysis> {
friend AnalysisInfoMixin<NoOpModuleAnalysis>;
static AnalysisKey Key;
public:
struct Result {};
Result run(Module &, ModuleAnalysisManager &) { return Result(); }
static StringRef name() { return "NoOpModuleAnalysis"; }
};
/// \brief No-op CGSCC pass which does nothing.
struct NoOpCGSCCPass {
PreservedAnalyses run(LazyCallGraph::SCC &C, CGSCCAnalysisManager &,
LazyCallGraph &, CGSCCUpdateResult &UR) {
return PreservedAnalyses::all();
}
static StringRef name() { return "NoOpCGSCCPass"; }
};
/// \brief No-op CGSCC analysis.
class NoOpCGSCCAnalysis : public AnalysisInfoMixin<NoOpCGSCCAnalysis> {
friend AnalysisInfoMixin<NoOpCGSCCAnalysis>;
static AnalysisKey Key;
public:
struct Result {};
Result run(LazyCallGraph::SCC &, CGSCCAnalysisManager &, LazyCallGraph &G) {
return Result();
}
static StringRef name() { return "NoOpCGSCCAnalysis"; }
};
/// \brief No-op function pass which does nothing.
struct NoOpFunctionPass {
PreservedAnalyses run(Function &F, FunctionAnalysisManager &) {
return PreservedAnalyses::all();
}
static StringRef name() { return "NoOpFunctionPass"; }
};
/// \brief No-op function analysis.
class NoOpFunctionAnalysis : public AnalysisInfoMixin<NoOpFunctionAnalysis> {
friend AnalysisInfoMixin<NoOpFunctionAnalysis>;
static AnalysisKey Key;
public:
struct Result {};
Result run(Function &, FunctionAnalysisManager &) { return Result(); }
static StringRef name() { return "NoOpFunctionAnalysis"; }
};
/// \brief No-op loop pass which does nothing.
struct NoOpLoopPass {
PreservedAnalyses run(Loop &L, LoopAnalysisManager &) {
return PreservedAnalyses::all();
}
static StringRef name() { return "NoOpLoopPass"; }
};
/// \brief No-op loop analysis.
class NoOpLoopAnalysis : public AnalysisInfoMixin<NoOpLoopAnalysis> {
friend AnalysisInfoMixin<NoOpLoopAnalysis>;
static AnalysisKey Key;
public:
struct Result {};
Result run(Loop &, LoopAnalysisManager &) { return Result(); }
static StringRef name() { return "NoOpLoopAnalysis"; }
};
AnalysisKey NoOpModuleAnalysis::Key;
AnalysisKey NoOpCGSCCAnalysis::Key;
AnalysisKey NoOpFunctionAnalysis::Key;
AnalysisKey NoOpLoopAnalysis::Key;
} // End anonymous namespace.
void PassBuilder::registerModuleAnalyses(ModuleAnalysisManager &MAM) {
#define MODULE_ANALYSIS(NAME, CREATE_PASS) \
MAM.registerPass([&] { return CREATE_PASS; });
#include "PassRegistry.def"
}
void PassBuilder::registerCGSCCAnalyses(CGSCCAnalysisManager &CGAM) {
#define CGSCC_ANALYSIS(NAME, CREATE_PASS) \
CGAM.registerPass([&] { return CREATE_PASS; });
#include "PassRegistry.def"
}
void PassBuilder::registerFunctionAnalyses(FunctionAnalysisManager &FAM) {
#define FUNCTION_ANALYSIS(NAME, CREATE_PASS) \
FAM.registerPass([&] { return CREATE_PASS; });
#include "PassRegistry.def"
}
void PassBuilder::registerLoopAnalyses(LoopAnalysisManager &LAM) {
#define LOOP_ANALYSIS(NAME, CREATE_PASS) \
LAM.registerPass([&] { return CREATE_PASS; });
#include "PassRegistry.def"
}
void PassBuilder::addPerModuleDefaultPipeline(ModulePassManager &MPM,
OptimizationLevel Level,
bool DebugLogging) {
// FIXME: Finish fleshing this out to match the legacy pipelines.
FunctionPassManager EarlyFPM(DebugLogging);
EarlyFPM.addPass(SimplifyCFGPass());
EarlyFPM.addPass(SROA());
EarlyFPM.addPass(EarlyCSEPass());
EarlyFPM.addPass(LowerExpectIntrinsicPass());
MPM.addPass(createModuleToFunctionPassAdaptor(std::move(EarlyFPM)));
}
void PassBuilder::addLTOPreLinkDefaultPipeline(ModulePassManager &MPM,
OptimizationLevel Level,
bool DebugLogging) {
// FIXME: We should use a customized pre-link pipeline!
addPerModuleDefaultPipeline(MPM, Level, DebugLogging);
}
void PassBuilder::addLTODefaultPipeline(ModulePassManager &MPM,
OptimizationLevel Level,
bool DebugLogging) {
// FIXME: Finish fleshing this out to match the legacy LTO pipelines.
FunctionPassManager LateFPM(DebugLogging);
LateFPM.addPass(InstCombinePass());
LateFPM.addPass(SimplifyCFGPass());
MPM.addPass(createModuleToFunctionPassAdaptor(std::move(LateFPM)));
}
static Optional<int> parseRepeatPassName(StringRef Name) {
if (!Name.consume_front("repeat<") || !Name.consume_back(">"))
return None;
int Count;
if (Name.getAsInteger(0, Count) || Count <= 0)
return None;
return Count;
}
static bool isModulePassName(StringRef Name) {
// Manually handle aliases for pre-configured pipeline fragments.
if (Name.startswith("default") || Name.startswith("lto"))
return DefaultAliasRegex.match(Name);
// Explicitly handle pass manager names.
if (Name == "module")
return true;
if (Name == "cgscc")
return true;
if (Name == "function")
return true;
// Explicitly handle custom-parsed pass names.
if (parseRepeatPassName(Name))
return true;
#define MODULE_PASS(NAME, CREATE_PASS) \
if (Name == NAME) \
return true;
#define MODULE_ANALYSIS(NAME, CREATE_PASS) \
if (Name == "require<" NAME ">" || Name == "invalidate<" NAME ">") \
return true;
#include "PassRegistry.def"
return false;
}
static bool isCGSCCPassName(StringRef Name) {
// Explicitly handle pass manager names.
if (Name == "cgscc")
return true;
if (Name == "function")
return true;
// Explicitly handle custom-parsed pass names.
if (parseRepeatPassName(Name))
return true;
#define CGSCC_PASS(NAME, CREATE_PASS) \
if (Name == NAME) \
return true;
#define CGSCC_ANALYSIS(NAME, CREATE_PASS) \
if (Name == "require<" NAME ">" || Name == "invalidate<" NAME ">") \
return true;
#include "PassRegistry.def"
return false;
}
static bool isFunctionPassName(StringRef Name) {
// Explicitly handle pass manager names.
if (Name == "function")
return true;
if (Name == "loop")
return true;
// Explicitly handle custom-parsed pass names.
if (parseRepeatPassName(Name))
return true;
#define FUNCTION_PASS(NAME, CREATE_PASS) \
if (Name == NAME) \
return true;
#define FUNCTION_ANALYSIS(NAME, CREATE_PASS) \
if (Name == "require<" NAME ">" || Name == "invalidate<" NAME ">") \
return true;
#include "PassRegistry.def"
return false;
}
static bool isLoopPassName(StringRef Name) {
// Explicitly handle pass manager names.
if (Name == "loop")
return true;
// Explicitly handle custom-parsed pass names.
if (parseRepeatPassName(Name))
return true;
#define LOOP_PASS(NAME, CREATE_PASS) \
if (Name == NAME) \
return true;
#define LOOP_ANALYSIS(NAME, CREATE_PASS) \
if (Name == "require<" NAME ">" || Name == "invalidate<" NAME ">") \
return true;
#include "PassRegistry.def"
return false;
}
Optional<std::vector<PassBuilder::PipelineElement>>
PassBuilder::parsePipelineText(StringRef Text) {
std::vector<PipelineElement> ResultPipeline;
SmallVector<std::vector<PipelineElement> *, 4> PipelineStack = {
&ResultPipeline};
for (;;) {
std::vector<PipelineElement> &Pipeline = *PipelineStack.back();
size_t Pos = Text.find_first_of(",()");
Pipeline.push_back({Text.substr(0, Pos), {}});
// If we have a single terminating name, we're done.
if (Pos == Text.npos)
break;
char Sep = Text[Pos];
Text = Text.substr(Pos + 1);
if (Sep == ',')
// Just a name ending in a comma, continue.
continue;
if (Sep == '(') {
// Push the inner pipeline onto the stack to continue processing.
PipelineStack.push_back(&Pipeline.back().InnerPipeline);
continue;
}
assert(Sep == ')' && "Bogus separator!");
// When handling the close parenthesis, we greedily consume them to avoid
// empty strings in the pipeline.
do {
// If we try to pop the outer pipeline we have unbalanced parentheses.
if (PipelineStack.size() == 1)
return None;
PipelineStack.pop_back();
} while (Text.consume_front(")"));
// Check if we've finished parsing.
if (Text.empty())
break;
// Otherwise, the end of an inner pipeline always has to be followed by
// a comma, and then we can continue.
if (!Text.consume_front(","))
return None;
}
if (PipelineStack.size() > 1)
// Unbalanced paretheses.
return None;
assert(PipelineStack.back() == &ResultPipeline &&
"Wrong pipeline at the bottom of the stack!");
return {std::move(ResultPipeline)};
}
bool PassBuilder::parseModulePass(ModulePassManager &MPM,
const PipelineElement &E, bool VerifyEachPass,
bool DebugLogging) {
auto &Name = E.Name;
auto &InnerPipeline = E.InnerPipeline;
// First handle complex passes like the pass managers which carry pipelines.
if (!InnerPipeline.empty()) {
if (Name == "module") {
ModulePassManager NestedMPM(DebugLogging);
if (!parseModulePassPipeline(NestedMPM, InnerPipeline, VerifyEachPass,
DebugLogging))
return false;
MPM.addPass(std::move(NestedMPM));
return true;
}
if (Name == "cgscc") {
CGSCCPassManager CGPM(DebugLogging);
if (!parseCGSCCPassPipeline(CGPM, InnerPipeline, VerifyEachPass,
DebugLogging))
return false;
MPM.addPass(createModuleToPostOrderCGSCCPassAdaptor(std::move(CGPM),
DebugLogging));
return true;
}
if (Name == "function") {
FunctionPassManager FPM(DebugLogging);
if (!parseFunctionPassPipeline(FPM, InnerPipeline, VerifyEachPass,
DebugLogging))
return false;
MPM.addPass(createModuleToFunctionPassAdaptor(std::move(FPM)));
return true;
}
if (auto Count = parseRepeatPassName(Name)) {
ModulePassManager NestedMPM(DebugLogging);
if (!parseModulePassPipeline(NestedMPM, InnerPipeline, VerifyEachPass,
DebugLogging))
return false;
MPM.addPass(createRepeatedPass(*Count, std::move(NestedMPM)));
return true;
}
// Normal passes can't have pipelines.
return false;
}
// Manually handle aliases for pre-configured pipeline fragments.
if (Name.startswith("default") || Name.startswith("lto")) {
SmallVector<StringRef, 3> Matches;
if (!DefaultAliasRegex.match(Name, &Matches))
return false;
assert(Matches.size() == 3 && "Must capture two matched strings!");
OptimizationLevel L = StringSwitch<OptimizationLevel>(Matches[2])
.Case("O0", O0)
.Case("O1", O1)
.Case("O2", O2)
.Case("O3", O3)
.Case("Os", Os)
.Case("Oz", Oz);
if (Matches[1] == "default") {
addPerModuleDefaultPipeline(MPM, L, DebugLogging);
} else if (Matches[1] == "lto-pre-link") {
addLTOPreLinkDefaultPipeline(MPM, L, DebugLogging);
} else {
assert(Matches[1] == "lto" && "Not one of the matched options!");
addLTODefaultPipeline(MPM, L, DebugLogging);
}
return true;
}
// Finally expand the basic registered passes from the .inc file.
#define MODULE_PASS(NAME, CREATE_PASS) \
if (Name == NAME) { \
MPM.addPass(CREATE_PASS); \
return true; \
}
#define MODULE_ANALYSIS(NAME, CREATE_PASS) \
if (Name == "require<" NAME ">") { \
MPM.addPass( \
RequireAnalysisPass< \
std::remove_reference<decltype(CREATE_PASS)>::type, Module>()); \
return true; \
} \
if (Name == "invalidate<" NAME ">") { \
MPM.addPass(InvalidateAnalysisPass< \
std::remove_reference<decltype(CREATE_PASS)>::type>()); \
return true; \
}
#include "PassRegistry.def"
return false;
}
bool PassBuilder::parseCGSCCPass(CGSCCPassManager &CGPM,
const PipelineElement &E, bool VerifyEachPass,
bool DebugLogging) {
auto &Name = E.Name;
auto &InnerPipeline = E.InnerPipeline;
// First handle complex passes like the pass managers which carry pipelines.
if (!InnerPipeline.empty()) {
if (Name == "cgscc") {
CGSCCPassManager NestedCGPM(DebugLogging);
if (!parseCGSCCPassPipeline(NestedCGPM, InnerPipeline, VerifyEachPass,
DebugLogging))
return false;
// Add the nested pass manager with the appropriate adaptor.
CGPM.addPass(std::move(NestedCGPM));
return true;
}
if (Name == "function") {
FunctionPassManager FPM(DebugLogging);
if (!parseFunctionPassPipeline(FPM, InnerPipeline, VerifyEachPass,
DebugLogging))
return false;
// Add the nested pass manager with the appropriate adaptor.
CGPM.addPass(
createCGSCCToFunctionPassAdaptor(std::move(FPM), DebugLogging));
return true;
}
if (auto Count = parseRepeatPassName(Name)) {
CGSCCPassManager NestedCGPM(DebugLogging);
if (!parseCGSCCPassPipeline(NestedCGPM, InnerPipeline, VerifyEachPass,
DebugLogging))
return false;
CGPM.addPass(createRepeatedPass(*Count, std::move(NestedCGPM)));
return true;
}
// Normal passes can't have pipelines.
return false;
}
// Now expand the basic registered passes from the .inc file.
#define CGSCC_PASS(NAME, CREATE_PASS) \
if (Name == NAME) { \
CGPM.addPass(CREATE_PASS); \
return true; \
}
#define CGSCC_ANALYSIS(NAME, CREATE_PASS) \
if (Name == "require<" NAME ">") { \
CGPM.addPass(RequireAnalysisPass< \
std::remove_reference<decltype(CREATE_PASS)>::type, \
LazyCallGraph::SCC, CGSCCAnalysisManager, LazyCallGraph &, \
CGSCCUpdateResult &>()); \
return true; \
} \
if (Name == "invalidate<" NAME ">") { \
CGPM.addPass(InvalidateAnalysisPass< \
std::remove_reference<decltype(CREATE_PASS)>::type>()); \
return true; \
}
#include "PassRegistry.def"
return false;
}
bool PassBuilder::parseFunctionPass(FunctionPassManager &FPM,
const PipelineElement &E,
bool VerifyEachPass, bool DebugLogging) {
auto &Name = E.Name;
auto &InnerPipeline = E.InnerPipeline;
// First handle complex passes like the pass managers which carry pipelines.
if (!InnerPipeline.empty()) {
if (Name == "function") {
FunctionPassManager NestedFPM(DebugLogging);
if (!parseFunctionPassPipeline(NestedFPM, InnerPipeline, VerifyEachPass,
DebugLogging))
return false;
// Add the nested pass manager with the appropriate adaptor.
FPM.addPass(std::move(NestedFPM));
return true;
}
if (Name == "loop") {
LoopPassManager LPM(DebugLogging);
if (!parseLoopPassPipeline(LPM, InnerPipeline, VerifyEachPass,
DebugLogging))
return false;
// Add the nested pass manager with the appropriate adaptor.
FPM.addPass(createFunctionToLoopPassAdaptor(std::move(LPM)));
return true;
}
if (auto Count = parseRepeatPassName(Name)) {
FunctionPassManager NestedFPM(DebugLogging);
if (!parseFunctionPassPipeline(NestedFPM, InnerPipeline, VerifyEachPass,
DebugLogging))
return false;
FPM.addPass(createRepeatedPass(*Count, std::move(NestedFPM)));
return true;
}
// Normal passes can't have pipelines.
return false;
}
// Now expand the basic registered passes from the .inc file.
#define FUNCTION_PASS(NAME, CREATE_PASS) \
if (Name == NAME) { \
FPM.addPass(CREATE_PASS); \
return true; \
}
#define FUNCTION_ANALYSIS(NAME, CREATE_PASS) \
if (Name == "require<" NAME ">") { \
FPM.addPass( \
RequireAnalysisPass< \
std::remove_reference<decltype(CREATE_PASS)>::type, Function>()); \
return true; \
} \
if (Name == "invalidate<" NAME ">") { \
FPM.addPass(InvalidateAnalysisPass< \
std::remove_reference<decltype(CREATE_PASS)>::type>()); \
return true; \
}
#include "PassRegistry.def"
return false;
}
bool PassBuilder::parseLoopPass(LoopPassManager &LPM, const PipelineElement &E,
bool VerifyEachPass, bool DebugLogging) {
StringRef Name = E.Name;
auto &InnerPipeline = E.InnerPipeline;
// First handle complex passes like the pass managers which carry pipelines.
if (!InnerPipeline.empty()) {
if (Name == "loop") {
LoopPassManager NestedLPM(DebugLogging);
if (!parseLoopPassPipeline(NestedLPM, InnerPipeline, VerifyEachPass,
DebugLogging))
return false;
// Add the nested pass manager with the appropriate adaptor.
LPM.addPass(std::move(NestedLPM));
return true;
}
if (auto Count = parseRepeatPassName(Name)) {
LoopPassManager NestedLPM(DebugLogging);
if (!parseLoopPassPipeline(NestedLPM, InnerPipeline, VerifyEachPass,
DebugLogging))
return false;
LPM.addPass(createRepeatedPass(*Count, std::move(NestedLPM)));
return true;
}
// Normal passes can't have pipelines.
return false;
}
// Now expand the basic registered passes from the .inc file.
#define LOOP_PASS(NAME, CREATE_PASS) \
if (Name == NAME) { \
LPM.addPass(CREATE_PASS); \
return true; \
}
#define LOOP_ANALYSIS(NAME, CREATE_PASS) \
if (Name == "require<" NAME ">") { \
LPM.addPass(RequireAnalysisPass< \
std::remove_reference<decltype(CREATE_PASS)>::type, Loop>()); \
return true; \
} \
if (Name == "invalidate<" NAME ">") { \
LPM.addPass(InvalidateAnalysisPass< \
std::remove_reference<decltype(CREATE_PASS)>::type>()); \
return true; \
}
#include "PassRegistry.def"
return false;
}
bool PassBuilder::parseAAPassName(AAManager &AA, StringRef Name) {
#define MODULE_ALIAS_ANALYSIS(NAME, CREATE_PASS) \
if (Name == NAME) { \
AA.registerModuleAnalysis< \
std::remove_reference<decltype(CREATE_PASS)>::type>(); \
return true; \
}
#define FUNCTION_ALIAS_ANALYSIS(NAME, CREATE_PASS) \
if (Name == NAME) { \
AA.registerFunctionAnalysis< \
std::remove_reference<decltype(CREATE_PASS)>::type>(); \
return true; \
}
#include "PassRegistry.def"
return false;
}
bool PassBuilder::parseLoopPassPipeline(LoopPassManager &LPM,
ArrayRef<PipelineElement> Pipeline,
bool VerifyEachPass,
bool DebugLogging) {
for (const auto &Element : Pipeline) {
if (!parseLoopPass(LPM, Element, VerifyEachPass, DebugLogging))
return false;
// FIXME: No verifier support for Loop passes!
}
return true;
}
bool PassBuilder::parseFunctionPassPipeline(FunctionPassManager &FPM,
ArrayRef<PipelineElement> Pipeline,
bool VerifyEachPass,
bool DebugLogging) {
for (const auto &Element : Pipeline) {
if (!parseFunctionPass(FPM, Element, VerifyEachPass, DebugLogging))
return false;
if (VerifyEachPass)
FPM.addPass(VerifierPass());
}
return true;
}
bool PassBuilder::parseCGSCCPassPipeline(CGSCCPassManager &CGPM,
ArrayRef<PipelineElement> Pipeline,
bool VerifyEachPass,
bool DebugLogging) {
for (const auto &Element : Pipeline) {
if (!parseCGSCCPass(CGPM, Element, VerifyEachPass, DebugLogging))
return false;
// FIXME: No verifier support for CGSCC passes!
}
return true;
}
void PassBuilder::crossRegisterProxies(LoopAnalysisManager &LAM,
FunctionAnalysisManager &FAM,
CGSCCAnalysisManager &CGAM,
ModuleAnalysisManager &MAM) {
MAM.registerPass([&] { return FunctionAnalysisManagerModuleProxy(FAM); });
MAM.registerPass([&] { return CGSCCAnalysisManagerModuleProxy(CGAM); });
CGAM.registerPass([&] { return ModuleAnalysisManagerCGSCCProxy(MAM); });
FAM.registerPass([&] { return CGSCCAnalysisManagerFunctionProxy(CGAM); });
FAM.registerPass([&] { return ModuleAnalysisManagerFunctionProxy(MAM); });
FAM.registerPass([&] { return LoopAnalysisManagerFunctionProxy(LAM); });
LAM.registerPass([&] { return FunctionAnalysisManagerLoopProxy(FAM); });
}
bool PassBuilder::parseModulePassPipeline(ModulePassManager &MPM,
ArrayRef<PipelineElement> Pipeline,
bool VerifyEachPass,
bool DebugLogging) {
for (const auto &Element : Pipeline) {
if (!parseModulePass(MPM, Element, VerifyEachPass, DebugLogging))
return false;
if (VerifyEachPass)
MPM.addPass(VerifierPass());
}
return true;
}
// Primary pass pipeline description parsing routine.
// FIXME: Should this routine accept a TargetMachine or require the caller to
// pre-populate the analysis managers with target-specific stuff?
bool PassBuilder::parsePassPipeline(ModulePassManager &MPM,
StringRef PipelineText, bool VerifyEachPass,
bool DebugLogging) {
auto Pipeline = parsePipelineText(PipelineText);
if (!Pipeline || Pipeline->empty())
return false;
// If the first name isn't at the module layer, wrap the pipeline up
// automatically.
StringRef FirstName = Pipeline->front().Name;
if (!isModulePassName(FirstName)) {
if (isCGSCCPassName(FirstName))
Pipeline = {{"cgscc", std::move(*Pipeline)}};
else if (isFunctionPassName(FirstName))
Pipeline = {{"function", std::move(*Pipeline)}};
else if (isLoopPassName(FirstName))
Pipeline = {{"function", {{"loop", std::move(*Pipeline)}}}};
else
// Unknown pass name!
return false;
}
return parseModulePassPipeline(MPM, *Pipeline, VerifyEachPass, DebugLogging);
}
bool PassBuilder::parseAAPipeline(AAManager &AA, StringRef PipelineText) {
while (!PipelineText.empty()) {
StringRef Name;
std::tie(Name, PipelineText) = PipelineText.split(',');
if (!parseAAPassName(AA, Name))
return false;
}
return true;
}
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