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acb4e847f5
Checking each module dependency info if it is up-to-date with respect to when the cache contents were serialized in a prior scan. - Add a timestamp field to the serialization format for the dependency scanner cache - Add a flag "-validate-prior-dependency-scan-cache" which, when combined with "-load-dependency-scan-cache" will have the scanner prune dependencies from the deserialized cache which have inputs that are newer than the prior scan itself With the above in-place, the scan otherwise proceeds as-is, getting cache hits for entries still valid since the prior scan.
333 lines
13 KiB
C++
333 lines
13 KiB
C++
//===--- Statistics.def - Statistics Macro Metaprogramming Database -*- C++ -*-===//
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//
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// This source file is part of the Swift.org open source project
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//
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// Copyright (c) 2014 - 2018 Apple Inc. and the Swift project authors
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// Licensed under Apache License v2.0 with Runtime Library Exception
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//
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// See https://swift.org/LICENSE.txt for license information
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// See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
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//
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//===----------------------------------------------------------------------===//
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//
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// This file defines the database of always-available statistic counters.
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//
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// DRIVER_STATISTIC(Id)
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// - Id is an identifier suitable for use in C++
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//
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// FRONTEND_STATISTIC(Subsystem, Id)
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// - Subsystem is a token to be stringified as a name prefix
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// - Id is an identifier suitable for use in C++
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//
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//===----------------------------------------------------------------------===//
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/// Driver statistics are collected for driver processes
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#ifdef DRIVER_STATISTIC
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/// Total number of jobs (frontend, merge-modules, link, etc.) run by the
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/// driver. This should be some number less than the total number of files in
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/// the module in primary-files mode, and will likely just be 1 or 2 in WMO
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/// mode.
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DRIVER_STATISTIC(NumDriverJobsRun)
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/// Total number of jobs (frontend, merge-modules, link, etc.) which _could_
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/// have been run by the driver, but that it decided to skip due to analysis of
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/// the dependency graph induced by .swiftdeps files. This, added together with
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/// the number of driver jobs run (above) should be relatively constant
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/// run-over-run.
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DRIVER_STATISTIC(NumDriverJobsSkipped)
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/// Total number of driver processes that exited with EXIT_FAILURE / not with
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/// EXIT_SUCCESS.
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DRIVER_STATISTIC(NumProcessFailures)
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/// Total number of driver poll() calls on subprocess pipes.
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DRIVER_STATISTIC(NumDriverPipePolls)
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/// Total number of driver read() calls on subprocess pipes.
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DRIVER_STATISTIC(NumDriverPipeReads)
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/// Next 10 statistics count dirtying-events in the driver's dependency graph,
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/// which it uses to decide which files are invalid (and thus which files to
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/// build). There are two dimensions to each dirtying event:
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///
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/// - the type of dependency that caused the dirtying (top-level names, dynamic
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/// lookups, nominal type usage, member usage, or external-files)
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///
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/// - whether the dependency should "cascade" (transitively dirty the node's
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/// own downstream dependents, vs. just dirtying the node itself)
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DRIVER_STATISTIC(DriverDepCascadingTopLevel)
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DRIVER_STATISTIC(DriverDepCascadingDynamic)
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DRIVER_STATISTIC(DriverDepCascadingNominal)
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DRIVER_STATISTIC(DriverDepCascadingMember)
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DRIVER_STATISTIC(DriverDepCascadingExternal)
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DRIVER_STATISTIC(DriverDepTopLevel)
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DRIVER_STATISTIC(DriverDepDynamic)
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DRIVER_STATISTIC(DriverDepNominal)
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DRIVER_STATISTIC(DriverDepMember)
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DRIVER_STATISTIC(DriverDepExternal)
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/// Maximum Resident Set Size (roughly: physical memory actually used) by the
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/// tree of processes launched by the driver (i.e. the entire compilation).
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DRIVER_STATISTIC(ChildrenMaxRSS)
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#endif
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/// Driver statistics are collected for frontend processes
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#ifdef FRONTEND_STATISTIC
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/// Total number of frontend processes that exited with EXIT_FAILURE / not with
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/// EXIT_SUCCESS.
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FRONTEND_STATISTIC(Frontend, NumProcessFailures)
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/// Total instructions-executed count in each frontend process.
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FRONTEND_STATISTIC(Frontend, NumInstructionsExecuted)
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/// Maximum number of bytes allocated via malloc.
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FRONTEND_STATISTIC(Frontend, MaxMallocUsage)
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/// Number of source buffers visible in the source manager.
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FRONTEND_STATISTIC(AST, NumSourceBuffers)
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/// Total number of lines of source code (just by counting newlines) in all the
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/// source buffers visible in the source manager. Crude proxy for "project
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/// size".
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FRONTEND_STATISTIC(AST, NumSourceLines)
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/// The NumSourceLines value of a frontend divided by the user-time of the
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/// frontend; stored and emitted separately so there's a precomputed value a
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/// user can grep-for to find a slow frontend.
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FRONTEND_STATISTIC(AST, NumSourceLinesPerSecond)
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/// Number of libraries (including frameworks) linked against.
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FRONTEND_STATISTIC(AST, NumLinkLibraries)
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/// Number of top-level modules loaded in the AST context.
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FRONTEND_STATISTIC(AST, NumLoadedModules)
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/// Number of Clang entities imported into the AST context.
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FRONTEND_STATISTIC(AST, NumTotalClangImportedEntities)
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/// Number of bytes allocated in the AST's local arenas.
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FRONTEND_STATISTIC(AST, NumASTBytesAllocated)
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/// Number of file-level dependencies of this frontend job, as tracked in the
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/// AST context's dependency collector.
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FRONTEND_STATISTIC(AST, NumDependencies)
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FRONTEND_STATISTIC(AST, NumIncrementalDependencies)
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FRONTEND_STATISTIC(AST, NumMacroPluginDependencies)
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/// Number of top-level, dynamic, and member names referenced in this frontend
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/// job's source file, as tracked by the AST context's referenced-name tracker.
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FRONTEND_STATISTIC(AST, NumReferencedTopLevelNames)
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FRONTEND_STATISTIC(AST, NumReferencedDynamicNames)
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FRONTEND_STATISTIC(AST, NumReferencedMemberNames)
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/// Number of declarations in the AST context.
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FRONTEND_STATISTIC(AST, NumDecls)
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/// Number of local type declarations in the AST context.
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FRONTEND_STATISTIC(AST, NumLocalTypeDecls)
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/// Number of Objective-C declarations in the AST context.
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FRONTEND_STATISTIC(AST, NumObjCMethods)
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/// Number of operators in the AST context.
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FRONTEND_STATISTIC(AST, NumOperators)
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/// Number of precedence groups in the AST context.
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FRONTEND_STATISTIC(AST, NumPrecedenceGroups)
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/// Number of local lookups into a module.
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FRONTEND_STATISTIC(AST, NumModuleLookupValue)
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/// Number of local lookups into a module's class members, for
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/// AnyObject lookup.
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FRONTEND_STATISTIC(AST, NumModuleLookupClassMember)
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/// Number of ASTScope lookups
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FRONTEND_STATISTIC(AST, NumASTScopeLookups)
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/// Number of ASTScope expansions
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FRONTEND_STATISTIC(AST, NumASTScopeExpansions)
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/// Number of lookups of the cached import graph for a module or
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/// source file.
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FRONTEND_STATISTIC(AST, ImportSetFoldHit)
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FRONTEND_STATISTIC(AST, ImportSetFoldMiss)
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FRONTEND_STATISTIC(AST, ImportSetCacheHit)
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FRONTEND_STATISTIC(AST, ImportSetCacheMiss)
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FRONTEND_STATISTIC(AST, ModuleVisibilityCacheHit)
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FRONTEND_STATISTIC(AST, ModuleVisibilityCacheMiss)
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FRONTEND_STATISTIC(AST, ModuleShadowCacheHit)
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FRONTEND_STATISTIC(AST, ModuleShadowCacheMiss)
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/// Number of types deserialized.
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FRONTEND_STATISTIC(AST, NumDepScanFilesystemLookups)
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/// Number of full function bodies parsed.
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FRONTEND_STATISTIC(Parse, NumFunctionsParsed)
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/// Number of full braced decl list parsed.
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FRONTEND_STATISTIC(Parse, NumIterableDeclContextParsed)
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#define SWIFT_REQUEST(ZONE, NAME, SIG, CACHE, LocOptions) FRONTEND_STATISTIC(Parse, NAME)
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#include "swift/AST/ParseTypeIDZone.def"
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#undef SWIFT_REQUEST
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/// Number of conformances that were deserialized by this frontend job.
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FRONTEND_STATISTIC(Sema, NumConformancesDeserialized)
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/// Number of pairs of modules we've checked for cross-imports.
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FRONTEND_STATISTIC(Sema, NumCrossImportsChecked)
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/// Number of pairs of modules we've actually found cross-imports for.
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FRONTEND_STATISTIC(Sema, NumCrossImportsFound)
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/// Number of steps recorded in the trail while solving expression type
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/// constraints. A rough proxy for "how much work the expression
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/// type checker did".
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FRONTEND_STATISTIC(Sema, NumTrailSteps)
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/// Number of constraint-solving scopes created in the typechecker, while
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/// solving expression type constraints. Another rough proxy for "how much
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/// work the expression type checker did".
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FRONTEND_STATISTIC(Sema, NumConstraintScopes)
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/// Number of constraint-solving scopes that were created but which
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/// did not themselves lead to the creation of further scopes, either
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/// because we successfully found a solution, or some constraint failed.
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///
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/// Note: This can vary based on the number of connected components we
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/// generate, since each connected component will itself have at least
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/// one leaf scope.
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FRONTEND_STATISTIC(Sema, NumLeafScopes)
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/// Number of constraints considered per attempt to
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/// contract constraint graph edges.
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/// This is a measure of complexity of the contraction algorithm.
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FRONTEND_STATISTIC(Sema, NumConstraintsConsideredForEdgeContraction)
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/// Number of constraint-solving scopes created in the typechecker, while
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/// solving expression type constraints. A rough proxy for "how much work the
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/// expression typechecker did".
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FRONTEND_STATISTIC(Sema, NumCyclicOneWayComponentsCollapsed)
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/// Number of declarations that were deserialized. A rough proxy for the amount
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/// of material loaded from other modules.
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FRONTEND_STATISTIC(Sema, NumDeclsDeserialized)
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/// Number of declarations type checked.
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FRONTEND_STATISTIC(Sema, NumDeclsTypechecked)
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/// Number of synthesized accessors.
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FRONTEND_STATISTIC(Sema, NumAccessorsSynthesized)
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/// Number of synthesized accessor bodies.
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FRONTEND_STATISTIC(Sema, NumAccessorBodiesSynthesized)
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/// Number of requirement machines constructed. Rough proxy for
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/// amount of work the requirement machine does analyzing type signatures.
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FRONTEND_STATISTIC(Sema, NumRequirementMachines)
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/// Number of new rules added by Knuth-Bendix completion procedure.
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FRONTEND_STATISTIC(Sema, NumRequirementMachineCompletionSteps)
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/// Number of new rules added by concrete term unification.
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FRONTEND_STATISTIC(Sema, NumRequirementMachineUnifiedConcreteTerms)
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/// Number of conformance paths we had to compute.
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FRONTEND_STATISTIC(Sema, NumConformancePathsRecorded)
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/// Number of lazy requirement signatures registered.
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FRONTEND_STATISTIC(Sema, NumLazyRequirementSignatures)
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/// Number of lazy requirement signatures deserialized.
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FRONTEND_STATISTIC(Sema, NumLazyRequirementSignaturesLoaded)
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/// Number of lazy iterable declaration contexts constructed.
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FRONTEND_STATISTIC(Sema, NumLazyIterableDeclContexts)
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/// Number of member-name lookups that avoided loading all members.
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FRONTEND_STATISTIC(Sema, NamedLazyMemberLoadSuccessCount)
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/// Number of types deserialized.
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FRONTEND_STATISTIC(Sema, NumTypesDeserialized)
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/// Number of lazy iterable declaration contexts left unloaded.
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FRONTEND_STATISTIC(Sema, NumUnloadedLazyIterableDeclContexts)
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/// Number of Swift 6 errors, including those that are downgraded to
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/// warnings in Swift 5 mode.
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FRONTEND_STATISTIC(Sema, NumSwift6Errors)
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/// Number of lookups into a module and its imports.
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/// All type check requests go into the Sema area.
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#define SWIFT_REQUEST(ZONE, NAME, Sig, Caching, LocOptions) FRONTEND_STATISTIC(Sema, NAME)
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#include "swift/AST/AccessTypeIDZone.def"
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#include "swift/AST/NameLookupTypeIDZone.def"
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#include "swift/AST/TypeCheckerTypeIDZone.def"
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#include "swift/Sema/IDETypeCheckingRequestIDZone.def"
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#include "swift/IDE/IDERequestIDZone.def"
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#include "swift/ClangImporter/ClangImporterTypeIDZone.def"
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#include "swift/ConstExtract/ConstExtractTypeIDZone.def"
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#undef SWIFT_REQUEST
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#define SWIFT_REQUEST(ZONE, NAME, Sig, Caching, LocOptions) FRONTEND_STATISTIC(SILGen, NAME)
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#include "swift/AST/SILGenTypeIDZone.def"
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#undef SWIFT_REQUEST
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/// The next 10 statistics count 5 kinds of SIL entities present
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/// after the SILGen and SILOpt phases. The entities are functions,
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/// vtables, witness tables, default witness tables and global
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/// variables.
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FRONTEND_STATISTIC(SILModule, NumSILGenFunctions)
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FRONTEND_STATISTIC(SILModule, NumSILGenVtables)
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FRONTEND_STATISTIC(SILModule, NumSILGenWitnessTables)
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FRONTEND_STATISTIC(SILModule, NumSILGenDefaultWitnessTables)
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FRONTEND_STATISTIC(SILModule, NumSILGenGlobalVariables)
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#define SWIFT_REQUEST(ZONE, NAME, Sig, Caching, LocOptions) FRONTEND_STATISTIC(SILOptimizer, NAME)
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#include "swift/AST/SILOptimizerTypeIDZone.def"
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#undef SWIFT_REQUEST
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FRONTEND_STATISTIC(SILModule, NumSILOptFunctions)
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FRONTEND_STATISTIC(SILModule, NumSILOptVtables)
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FRONTEND_STATISTIC(SILModule, NumSILOptWitnessTables)
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FRONTEND_STATISTIC(SILModule, NumSILOptDefaultWitnessTables)
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FRONTEND_STATISTIC(SILModule, NumSILOptGlobalVariables)
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#define SWIFT_REQUEST(ZONE, NAME, Sig, Caching, LocOptions) FRONTEND_STATISTIC(IRGen, NAME)
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#include "swift/AST/IRGenTypeIDZone.def"
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#undef SWIFT_REQUEST
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/// The next 10 statistics count kinds of LLVM entities produced
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/// during the IRGen phase: globals, functions, aliases, ifuncs,
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/// named metadata, value and comdat symbols, basic blocks,
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/// instructions, and GOT entries.
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FRONTEND_STATISTIC(IRModule, NumIRGlobals)
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FRONTEND_STATISTIC(IRModule, NumIRFunctions)
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FRONTEND_STATISTIC(IRModule, NumIRAliases)
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FRONTEND_STATISTIC(IRModule, NumIRIFuncs)
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FRONTEND_STATISTIC(IRModule, NumIRNamedMetaData)
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FRONTEND_STATISTIC(IRModule, NumIRValueSymbols)
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FRONTEND_STATISTIC(IRModule, NumIRComdatSymbols)
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FRONTEND_STATISTIC(IRModule, NumIRBasicBlocks)
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FRONTEND_STATISTIC(IRModule, NumIRInsts)
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FRONTEND_STATISTIC(IRModule, NumGOTEntries)
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/// Number of bytes written to the object-file output stream
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/// of the frontend job, which should be the same as the size of
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/// the .o file you find on disk after the frontend exits.
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FRONTEND_STATISTIC(LLVM, NumLLVMBytesOutput)
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#define SWIFT_REQUEST(ZONE, NAME, Sig, Caching, LocOptions) FRONTEND_STATISTIC(TBDGen, NAME)
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#include "swift/AST/TBDGenTypeIDZone.def"
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#undef SWIFT_REQUEST
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#endif
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