Revert "[analyzer] [NFC] Split up RetainSummaryManager from RetainCountChecker"

This reverts commit a786521fa66c72edd308baff0c08961b6d964fb1.

Bots haven't caught up yet, but broke modules build with:

../tools/clang/include/clang/StaticAnalyzer/Checkers/MPIFunctionClassifier.h:18:10:
fatal error: cyclic dependency in module 'Clang_StaticAnalyzer_Core':
Clang_StaticAnalyzer_Core -> Clang_Analysis ->
Clang_StaticAnalyzer_Checkers -> Clang_StaticAnalyzer_Core
         ^

llvm-svn: 340117

1 files changed, 0 insertions, 902 deletions

diff --git a/clang/lib/Analysis/RetainSummaryManager.cpp b/clang/lib/Analysis/RetainSummaryManager.cpp
deleted file mode 100644
index ba2fce40c50..00000000000
--- a/clang/lib/Analysis/RetainSummaryManager.cpp
+++ /dev/null
@@ -1,902 +0,0 @@
-//== RetainSummaryManager.cpp - Summaries for reference counting --*- C++ -*--//
-//
-//                     The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-//
-//  This file defines summaries implementation for retain counting, which
-//  implements a reference count checker for Core Foundation and Cocoa
-//  on (Mac OS X).
-//
-//===----------------------------------------------------------------------===//
-
-#include "clang/Analysis/RetainSummaryManager.h"
-#include "clang/Analysis/DomainSpecific/CocoaConventions.h"
-#include "clang/AST/Attr.h"
-#include "clang/AST/DeclCXX.h"
-#include "clang/AST/DeclObjC.h"
-#include "clang/AST/ParentMap.h"
-
-using namespace clang;
-using namespace ento;
-
-ArgEffects RetainSummaryManager::getArgEffects() {
-  ArgEffects AE = ScratchArgs;
-  ScratchArgs = AF.getEmptyMap();
-  return AE;
-}
-
-const RetainSummary *
-RetainSummaryManager::getPersistentSummary(const RetainSummary &OldSumm) {
-  // Unique "simple" summaries -- those without ArgEffects.
-  if (OldSumm.isSimple()) {
-    ::llvm::FoldingSetNodeID ID;
-    OldSumm.Profile(ID);
-
-    void *Pos;
-    CachedSummaryNode *N = SimpleSummaries.FindNodeOrInsertPos(ID, Pos);
-
-    if (!N) {
-      N = (CachedSummaryNode *) BPAlloc.Allocate<CachedSummaryNode>();
-      new (N) CachedSummaryNode(OldSumm);
-      SimpleSummaries.InsertNode(N, Pos);
-    }
-
-    return &N->getValue();
-  }
-
-  RetainSummary *Summ = (RetainSummary *) BPAlloc.Allocate<RetainSummary>();
-  new (Summ) RetainSummary(OldSumm);
-  return Summ;
-}
-
-static bool hasRCAnnotation(const Decl *D, StringRef rcAnnotation) {
-  for (const auto *Ann : D->specific_attrs<AnnotateAttr>()) {
-    if (Ann->getAnnotation() == rcAnnotation)
-      return true;
-  }
-  return false;
-}
-
-static bool isRetain(const FunctionDecl *FD, StringRef FName) {
-  return FName.startswith_lower("retain") || FName.endswith_lower("retain");
-}
-
-static bool isRelease(const FunctionDecl *FD, StringRef FName) {
-  return FName.startswith_lower("release") || FName.endswith_lower("release");
-}
-
-static bool isAutorelease(const FunctionDecl *FD, StringRef FName) {
-  return FName.startswith_lower("autorelease") ||
-         FName.endswith_lower("autorelease");
-}
-
-static bool isMakeCollectable(StringRef FName) {
-  return FName.contains_lower("MakeCollectable");
-}
-
-const RetainSummary *
-RetainSummaryManager::generateSummary(const FunctionDecl *FD,
-                                      bool &AllowAnnotations) {
-  // We generate "stop" summaries for implicitly defined functions.
-  if (FD->isImplicit()) {
-    return getPersistentStopSummary();
-  }
-
-  // [PR 3337] Use 'getAs<FunctionType>' to strip away any typedefs on the
-  // function's type.
-  const FunctionType *FT = FD->getType()->getAs<FunctionType>();
-  const IdentifierInfo *II = FD->getIdentifier();
-  if (!II)
-    return getDefaultSummary();
-
-  StringRef FName = II->getName();
-
-  // Strip away preceding '_'.  Doing this here will effect all the checks
-  // down below.
-  FName = FName.substr(FName.find_first_not_of('_'));
-
-  // Inspect the result type.
-  QualType RetTy = FT->getReturnType();
-  std::string RetTyName = RetTy.getAsString();
-
-  // FIXME: This should all be refactored into a chain of "summary lookup"
-  //  filters.
-  assert(ScratchArgs.isEmpty());
-
-  if (FName == "pthread_create" || FName == "pthread_setspecific") {
-    // Part of: <rdar://problem/7299394> and <rdar://problem/11282706>.
-    // This will be addressed better with IPA.
-    return getPersistentStopSummary();
-  } else if(FName == "NSMakeCollectable") {
-    // Handle: id NSMakeCollectable(CFTypeRef)
-    AllowAnnotations = false;
-    return RetTy->isObjCIdType() ? getUnarySummary(FT, cfmakecollectable)
-                                 : getPersistentStopSummary();
-  } else if (FName == "CFPlugInInstanceCreate") {
-    return getPersistentSummary(RetEffect::MakeNoRet());
-  } else if (FName == "IORegistryEntrySearchCFProperty" ||
-             (RetTyName == "CFMutableDictionaryRef" &&
-              (FName == "IOBSDNameMatching" || FName == "IOServiceMatching" ||
-               FName == "IOServiceNameMatching" ||
-               FName == "IORegistryEntryIDMatching" ||
-               FName == "IOOpenFirmwarePathMatching"))) {
-    // Part of <rdar://problem/6961230>. (IOKit)
-    // This should be addressed using a API table.
-    return getPersistentSummary(RetEffect::MakeOwned(RetEffect::CF), DoNothing,
-                             DoNothing);
-  } else if (FName == "IOServiceGetMatchingService" ||
-             FName == "IOServiceGetMatchingServices") {
-    // FIXES: <rdar://problem/6326900>
-    // This should be addressed using a API table.  This strcmp is also
-    // a little gross, but there is no need to super optimize here.
-    ScratchArgs = AF.add(ScratchArgs, 1, DecRef);
-    return getPersistentSummary(RetEffect::MakeNoRet(), DoNothing, DoNothing);
-  } else if (FName == "IOServiceAddNotification" ||
-             FName == "IOServiceAddMatchingNotification") {
-    // Part of <rdar://problem/6961230>. (IOKit)
-    // This should be addressed using a API table.
-    ScratchArgs = AF.add(ScratchArgs, 2, DecRef);
-    return getPersistentSummary(RetEffect::MakeNoRet(), DoNothing, DoNothing);
-  } else if (FName == "CVPixelBufferCreateWithBytes") {
-    // FIXES: <rdar://problem/7283567>
-    // Eventually this can be improved by recognizing that the pixel
-    // buffer passed to CVPixelBufferCreateWithBytes is released via
-    // a callback and doing full IPA to make sure this is done correctly.
-    // FIXME: This function has an out parameter that returns an
-    // allocated object.
-    ScratchArgs = AF.add(ScratchArgs, 7, StopTracking);
-    return getPersistentSummary(RetEffect::MakeNoRet(), DoNothing, DoNothing);
-  } else if (FName == "CGBitmapContextCreateWithData") {
-    // FIXES: <rdar://problem/7358899>
-    // Eventually this can be improved by recognizing that 'releaseInfo'
-    // passed to CGBitmapContextCreateWithData is released via
-    // a callback and doing full IPA to make sure this is done correctly.
-    ScratchArgs = AF.add(ScratchArgs, 8, StopTracking);
-    return getPersistentSummary(RetEffect::MakeOwned(RetEffect::CF), DoNothing,
-                             DoNothing);
-  } else if (FName == "CVPixelBufferCreateWithPlanarBytes") {
-    // FIXES: <rdar://problem/7283567>
-    // Eventually this can be improved by recognizing that the pixel
-    // buffer passed to CVPixelBufferCreateWithPlanarBytes is released
-    // via a callback and doing full IPA to make sure this is done
-    // correctly.
-    ScratchArgs = AF.add(ScratchArgs, 12, StopTracking);
-    return getPersistentSummary(RetEffect::MakeNoRet(), DoNothing, DoNothing);
-  } else if (FName == "VTCompressionSessionEncodeFrame") {
-    // The context argument passed to VTCompressionSessionEncodeFrame()
-    // is passed to the callback specified when creating the session
-    // (e.g. with VTCompressionSessionCreate()) which can release it.
-    // To account for this possibility, conservatively stop tracking
-    // the context.
-    ScratchArgs = AF.add(ScratchArgs, 5, StopTracking);
-    return getPersistentSummary(RetEffect::MakeNoRet(), DoNothing, DoNothing);
-  } else if (FName == "dispatch_set_context" ||
-             FName == "xpc_connection_set_context") {
-    // <rdar://problem/11059275> - The analyzer currently doesn't have
-    // a good way to reason about the finalizer function for libdispatch.
-    // If we pass a context object that is memory managed, stop tracking it.
-    // <rdar://problem/13783514> - Same problem, but for XPC.
-    // FIXME: this hack should possibly go away once we can handle
-    // libdispatch and XPC finalizers.
-    ScratchArgs = AF.add(ScratchArgs, 1, StopTracking);
-    return getPersistentSummary(RetEffect::MakeNoRet(), DoNothing, DoNothing);
-  } else if (FName.startswith("NSLog")) {
-    return getDoNothingSummary();
-  } else if (FName.startswith("NS") &&
-             (FName.find("Insert") != StringRef::npos)) {
-    // Whitelist NSXXInsertXX, for example NSMapInsertIfAbsent, since they can
-    // be deallocated by NSMapRemove. (radar://11152419)
-    ScratchArgs = AF.add(ScratchArgs, 1, StopTracking);
-    ScratchArgs = AF.add(ScratchArgs, 2, StopTracking);
-    return getPersistentSummary(RetEffect::MakeNoRet(), DoNothing, DoNothing);
-  }
-
-  if (RetTy->isPointerType()) {
-    // For CoreFoundation ('CF') types.
-    if (cocoa::isRefType(RetTy, "CF", FName)) {
-      if (isRetain(FD, FName)) {
-        // CFRetain isn't supposed to be annotated. However, this may as well
-        // be a user-made "safe" CFRetain function that is incorrectly
-        // annotated as cf_returns_retained due to lack of better options.
-        // We want to ignore such annotation.
-        AllowAnnotations = false;
-
-        return getUnarySummary(FT, cfretain);
-      } else if (isAutorelease(FD, FName)) {
-        // The headers use cf_consumed, but we can fully model CFAutorelease
-        // ourselves.
-        AllowAnnotations = false;
-
-        return getUnarySummary(FT, cfautorelease);
-      } else if (isMakeCollectable(FName)) {
-        AllowAnnotations = false;
-        return getUnarySummary(FT, cfmakecollectable);
-      } else {
-        return getCFCreateGetRuleSummary(FD);
-      }
-    }
-
-    // For CoreGraphics ('CG') and CoreVideo ('CV') types.
-    if (cocoa::isRefType(RetTy, "CG", FName) ||
-        cocoa::isRefType(RetTy, "CV", FName)) {
-      if (isRetain(FD, FName))
-        return getUnarySummary(FT, cfretain);
-      else
-        return getCFCreateGetRuleSummary(FD);
-    }
-
-    // For all other CF-style types, use the Create/Get
-    // rule for summaries but don't support Retain functions
-    // with framework-specific prefixes.
-    if (coreFoundation::isCFObjectRef(RetTy)) {
-      return getCFCreateGetRuleSummary(FD);
-    }
-
-    if (FD->hasAttr<CFAuditedTransferAttr>()) {
-      return getCFCreateGetRuleSummary(FD);
-    }
-  }
-
-  // Check for release functions, the only kind of functions that we care
-  // about that don't return a pointer type.
-  if (FName.size() >= 2 && FName[0] == 'C' &&
-      (FName[1] == 'F' || FName[1] == 'G')) {
-    // Test for 'CGCF'.
-    FName = FName.substr(FName.startswith("CGCF") ? 4 : 2);
-
-    if (isRelease(FD, FName))
-      return getUnarySummary(FT, cfrelease);
-    else {
-      assert(ScratchArgs.isEmpty());
-      // Remaining CoreFoundation and CoreGraphics functions.
-      // We use to assume that they all strictly followed the ownership idiom
-      // and that ownership cannot be transferred.  While this is technically
-      // correct, many methods allow a tracked object to escape.  For example:
-      //
-      //   CFMutableDictionaryRef x = CFDictionaryCreateMutable(...);
-      //   CFDictionaryAddValue(y, key, x);
-      //   CFRelease(x);
-      //   ... it is okay to use 'x' since 'y' has a reference to it
-      //
-      // We handle this and similar cases with the follow heuristic.  If the
-      // function name contains "InsertValue", "SetValue", "AddValue",
-      // "AppendValue", or "SetAttribute", then we assume that arguments may
-      // "escape."  This means that something else holds on to the object,
-      // allowing it be used even after its local retain count drops to 0.
-      ArgEffect E = (StrInStrNoCase(FName, "InsertValue") != StringRef::npos ||
-                     StrInStrNoCase(FName, "AddValue") != StringRef::npos ||
-                     StrInStrNoCase(FName, "SetValue") != StringRef::npos ||
-                     StrInStrNoCase(FName, "AppendValue") != StringRef::npos ||
-                     StrInStrNoCase(FName, "SetAttribute") != StringRef::npos)
-                        ? MayEscape
-                        : DoNothing;
-
-      return getPersistentSummary(RetEffect::MakeNoRet(), DoNothing, E);
-    }
-  }
-
-  return getDefaultSummary();
-}
-
-const RetainSummary *
-RetainSummaryManager::getFunctionSummary(const FunctionDecl *FD) {
-  // If we don't know what function we're calling, use our default summary.
-  if (!FD)
-    return getDefaultSummary();
-
-  // Look up a summary in our cache of FunctionDecls -> Summaries.
-  FuncSummariesTy::iterator I = FuncSummaries.find(FD);
-  if (I != FuncSummaries.end())
-    return I->second;
-
-  // No summary?  Generate one.
-  bool AllowAnnotations = true;
-  const RetainSummary *S = generateSummary(FD, AllowAnnotations);
-
-  // Annotations override defaults.
-  if (AllowAnnotations)
-    updateSummaryFromAnnotations(S, FD);
-
-  FuncSummaries[FD] = S;
-  return S;
-}
-
-//===----------------------------------------------------------------------===//
-// Summary creation for functions (largely uses of Core Foundation).
-//===----------------------------------------------------------------------===//
-
-static ArgEffect getStopTrackingHardEquivalent(ArgEffect E) {
-  switch (E) {
-  case DoNothing:
-  case Autorelease:
-  case DecRefBridgedTransferred:
-  case IncRef:
-  case IncRefMsg:
-  case MakeCollectable:
-  case UnretainedOutParameter:
-  case RetainedOutParameter:
-  case MayEscape:
-  case StopTracking:
-  case StopTrackingHard:
-    return StopTrackingHard;
-  case DecRef:
-  case DecRefAndStopTrackingHard:
-    return DecRefAndStopTrackingHard;
-  case DecRefMsg:
-  case DecRefMsgAndStopTrackingHard:
-    return DecRefMsgAndStopTrackingHard;
-  case Dealloc:
-    return Dealloc;
-  }
-
-  llvm_unreachable("Unknown ArgEffect kind");
-}
-
-void RetainSummaryManager::updateSummaryForCall(const RetainSummary *&S,
-                                                const CallEvent &Call) {
-  if (Call.hasNonZeroCallbackArg()) {
-    ArgEffect RecEffect =
-      getStopTrackingHardEquivalent(S->getReceiverEffect());
-    ArgEffect DefEffect =
-      getStopTrackingHardEquivalent(S->getDefaultArgEffect());
-
-    ArgEffects CustomArgEffects = S->getArgEffects();
-    for (ArgEffects::iterator I = CustomArgEffects.begin(),
-                              E = CustomArgEffects.end();
-         I != E; ++I) {
-      ArgEffect Translated = getStopTrackingHardEquivalent(I->second);
-      if (Translated != DefEffect)
-        ScratchArgs = AF.add(ScratchArgs, I->first, Translated);
-    }
-
-    RetEffect RE = RetEffect::MakeNoRetHard();
-
-    // Special cases where the callback argument CANNOT free the return value.
-    // This can generally only happen if we know that the callback will only be
-    // called when the return value is already being deallocated.
-    if (const SimpleFunctionCall *FC = dyn_cast<SimpleFunctionCall>(&Call)) {
-      if (IdentifierInfo *Name = FC->getDecl()->getIdentifier()) {
-        // When the CGBitmapContext is deallocated, the callback here will free
-        // the associated data buffer.
-        // The callback in dispatch_data_create frees the buffer, but not
-        // the data object.
-        if (Name->isStr("CGBitmapContextCreateWithData") ||
-            Name->isStr("dispatch_data_create"))
-          RE = S->getRetEffect();
-      }
-    }
-
-    S = getPersistentSummary(RE, RecEffect, DefEffect);
-  }
-
-  // Special case '[super init];' and '[self init];'
-  //
-  // Even though calling '[super init]' without assigning the result to self
-  // and checking if the parent returns 'nil' is a bad pattern, it is common.
-  // Additionally, our Self Init checker already warns about it. To avoid
-  // overwhelming the user with messages from both checkers, we model the case
-  // of '[super init]' in cases when it is not consumed by another expression
-  // as if the call preserves the value of 'self'; essentially, assuming it can
-  // never fail and return 'nil'.
-  // Note, we don't want to just stop tracking the value since we want the
-  // RetainCount checker to report leaks and use-after-free if SelfInit checker
-  // is turned off.
-  if (const ObjCMethodCall *MC = dyn_cast<ObjCMethodCall>(&Call)) {
-    if (MC->getMethodFamily() == OMF_init && MC->isReceiverSelfOrSuper()) {
-
-      // Check if the message is not consumed, we know it will not be used in
-      // an assignment, ex: "self = [super init]".
-      const Expr *ME = MC->getOriginExpr();
-      const LocationContext *LCtx = MC->getLocationContext();
-      ParentMap &PM = LCtx->getAnalysisDeclContext()->getParentMap();
-      if (!PM.isConsumedExpr(ME)) {
-        RetainSummaryTemplate ModifiableSummaryTemplate(S, *this);
-        ModifiableSummaryTemplate->setReceiverEffect(DoNothing);
-        ModifiableSummaryTemplate->setRetEffect(RetEffect::MakeNoRet());
-      }
-    }
-  }
-}
-
-const RetainSummary *
-RetainSummaryManager::getSummary(const CallEvent &Call,
-                                 QualType ReceiverType) {
-  const RetainSummary *Summ;
-  switch (Call.getKind()) {
-  case CE_Function:
-    Summ = getFunctionSummary(cast<SimpleFunctionCall>(Call).getDecl());
-    break;
-  case CE_CXXMember:
-  case CE_CXXMemberOperator:
-  case CE_Block:
-  case CE_CXXConstructor:
-  case CE_CXXDestructor:
-  case CE_CXXAllocator:
-    // FIXME: These calls are currently unsupported.
-    return getPersistentStopSummary();
-  case CE_ObjCMessage: {
-    const ObjCMethodCall &Msg = cast<ObjCMethodCall>(Call);
-    if (Msg.isInstanceMessage())
-      Summ = getInstanceMethodSummary(Msg, ReceiverType);
-    else
-      Summ = getClassMethodSummary(Msg);
-    break;
-  }
-  }
-
-  updateSummaryForCall(Summ, Call);
-
-  assert(Summ && "Unknown call type?");
-  return Summ;
-}
-
-
-const RetainSummary *
-RetainSummaryManager::getCFCreateGetRuleSummary(const FunctionDecl *FD) {
-  if (coreFoundation::followsCreateRule(FD))
-    return getCFSummaryCreateRule(FD);
-
-  return getCFSummaryGetRule(FD);
-}
-
-bool RetainSummaryManager::isTrustedReferenceCountImplementation(
-    const FunctionDecl *FD) {
-  return hasRCAnnotation(FD, "rc_ownership_trusted_implementation");
-}
-
-bool RetainSummaryManager::canEval(const CallExpr *CE,
-                                   const FunctionDecl *FD,
-                                   bool &hasTrustedImplementationAnnotation) {
-  // For now, we're only handling the functions that return aliases of their
-  // arguments: CFRetain (and its families).
-  // Eventually we should add other functions we can model entirely,
-  // such as CFRelease, which don't invalidate their arguments or globals.
-  if (CE->getNumArgs() != 1)
-    return false;
-
-  IdentifierInfo *II = FD->getIdentifier();
-  if (!II)
-    return false;
-
-  StringRef FName = II->getName();
-  FName = FName.substr(FName.find_first_not_of('_'));
-
-  QualType ResultTy = CE->getCallReturnType(Ctx);
-  if (ResultTy->isObjCIdType()) {
-    return II->isStr("NSMakeCollectable");
-  } else if (ResultTy->isPointerType()) {
-    // Handle: (CF|CG|CV)Retain
-    //         CFAutorelease
-    // It's okay to be a little sloppy here.
-    if (cocoa::isRefType(ResultTy, "CF", FName) ||
-        cocoa::isRefType(ResultTy, "CG", FName) ||
-        cocoa::isRefType(ResultTy, "CV", FName))
-      return isRetain(FD, FName) || isAutorelease(FD, FName) ||
-             isMakeCollectable(FName);
-
-    const FunctionDecl* FDD = FD->getDefinition();
-    if (FDD && isTrustedReferenceCountImplementation(FDD)) {
-      hasTrustedImplementationAnnotation = true;
-      return true;
-    }
-  }
-
-  return false;
-
-}
-
-const RetainSummary *
-RetainSummaryManager::getUnarySummary(const FunctionType* FT,
-                                      UnaryFuncKind func) {
-
-  // Sanity check that this is *really* a unary function.  This can
-  // happen if people do weird things.
-  const FunctionProtoType* FTP = dyn_cast<FunctionProtoType>(FT);
-  if (!FTP || FTP->getNumParams() != 1)
-    return getPersistentStopSummary();
-
-  assert (ScratchArgs.isEmpty());
-
-  ArgEffect Effect;
-  switch (func) {
-  case cfretain: Effect = IncRef; break;
-  case cfrelease: Effect = DecRef; break;
-  case cfautorelease: Effect = Autorelease; break;
-  case cfmakecollectable: Effect = MakeCollectable; break;
-  }
-
-  ScratchArgs = AF.add(ScratchArgs, 0, Effect);
-  return getPersistentSummary(RetEffect::MakeNoRet(), DoNothing, DoNothing);
-}
-
-const RetainSummary *
-RetainSummaryManager::getCFSummaryCreateRule(const FunctionDecl *FD) {
-  assert (ScratchArgs.isEmpty());
-
-  return getPersistentSummary(RetEffect::MakeOwned(RetEffect::CF));
-}
-
-const RetainSummary *
-RetainSummaryManager::getCFSummaryGetRule(const FunctionDecl *FD) {
-  assert (ScratchArgs.isEmpty());
-  return getPersistentSummary(RetEffect::MakeNotOwned(RetEffect::CF),
-                              DoNothing, DoNothing);
-}
-
-
-
-
-//===----------------------------------------------------------------------===//
-// Summary creation for Selectors.
-//===----------------------------------------------------------------------===//
-
-Optional<RetEffect>
-RetainSummaryManager::getRetEffectFromAnnotations(QualType RetTy,
-                                                  const Decl *D) {
-  if (cocoa::isCocoaObjectRef(RetTy)) {
-    if (D->hasAttr<NSReturnsRetainedAttr>())
-      return ObjCAllocRetE;
-
-    if (D->hasAttr<NSReturnsNotRetainedAttr>() ||
-        D->hasAttr<NSReturnsAutoreleasedAttr>())
-      return RetEffect::MakeNotOwned(RetEffect::ObjC);
-
-  } else if (!RetTy->isPointerType()) {
-    return None;
-  }
-
-  if (D->hasAttr<CFReturnsRetainedAttr>())
-    return RetEffect::MakeOwned(RetEffect::CF);
-  else if (hasRCAnnotation(D, "rc_ownership_returns_retained"))
-    return RetEffect::MakeOwned(RetEffect::Generalized);
-
-  if (D->hasAttr<CFReturnsNotRetainedAttr>())
-    return RetEffect::MakeNotOwned(RetEffect::CF);
-
-  return None;
-}
-
-void
-RetainSummaryManager::updateSummaryFromAnnotations(const RetainSummary *&Summ,
-                                                   const FunctionDecl *FD) {
-  if (!FD)
-    return;
-
-  assert(Summ && "Must have a summary to add annotations to.");
-  RetainSummaryTemplate Template(Summ, *this);
-
-  // Effects on the parameters.
-  unsigned parm_idx = 0;
-  for (FunctionDecl::param_const_iterator pi = FD->param_begin(),
-         pe = FD->param_end(); pi != pe; ++pi, ++parm_idx) {
-    const ParmVarDecl *pd = *pi;
-    if (pd->hasAttr<NSConsumedAttr>())
-      Template->addArg(AF, parm_idx, DecRefMsg);
-    else if (pd->hasAttr<CFConsumedAttr>() ||
-             hasRCAnnotation(pd, "rc_ownership_consumed"))
-      Template->addArg(AF, parm_idx, DecRef);
-    else if (pd->hasAttr<CFReturnsRetainedAttr>() ||
-             hasRCAnnotation(pd, "rc_ownership_returns_retained")) {
-      QualType PointeeTy = pd->getType()->getPointeeType();
-      if (!PointeeTy.isNull())
-        if (coreFoundation::isCFObjectRef(PointeeTy))
-          Template->addArg(AF, parm_idx, RetainedOutParameter);
-    } else if (pd->hasAttr<CFReturnsNotRetainedAttr>()) {
-      QualType PointeeTy = pd->getType()->getPointeeType();
-      if (!PointeeTy.isNull())
-        if (coreFoundation::isCFObjectRef(PointeeTy))
-          Template->addArg(AF, parm_idx, UnretainedOutParameter);
-    }
-  }
-
-  QualType RetTy = FD->getReturnType();
-  if (Optional<RetEffect> RetE = getRetEffectFromAnnotations(RetTy, FD))
-    Template->setRetEffect(*RetE);
-}
-
-void
-RetainSummaryManager::updateSummaryFromAnnotations(const RetainSummary *&Summ,
-                                                   const ObjCMethodDecl *MD) {
-  if (!MD)
-    return;
-
-  assert(Summ && "Must have a valid summary to add annotations to");
-  RetainSummaryTemplate Template(Summ, *this);
-
-  // Effects on the receiver.
-  if (MD->hasAttr<NSConsumesSelfAttr>())
-    Template->setReceiverEffect(DecRefMsg);
-
-  // Effects on the parameters.
-  unsigned parm_idx = 0;
-  for (ObjCMethodDecl::param_const_iterator
-         pi=MD->param_begin(), pe=MD->param_end();
-       pi != pe; ++pi, ++parm_idx) {
-    const ParmVarDecl *pd = *pi;
-    if (pd->hasAttr<NSConsumedAttr>())
-      Template->addArg(AF, parm_idx, DecRefMsg);
-    else if (pd->hasAttr<CFConsumedAttr>()) {
-      Template->addArg(AF, parm_idx, DecRef);
-    } else if (pd->hasAttr<CFReturnsRetainedAttr>()) {
-      QualType PointeeTy = pd->getType()->getPointeeType();
-      if (!PointeeTy.isNull())
-        if (coreFoundation::isCFObjectRef(PointeeTy))
-          Template->addArg(AF, parm_idx, RetainedOutParameter);
-    } else if (pd->hasAttr<CFReturnsNotRetainedAttr>()) {
-      QualType PointeeTy = pd->getType()->getPointeeType();
-      if (!PointeeTy.isNull())
-        if (coreFoundation::isCFObjectRef(PointeeTy))
-          Template->addArg(AF, parm_idx, UnretainedOutParameter);
-    }
-  }
-
-  QualType RetTy = MD->getReturnType();
-  if (Optional<RetEffect> RetE = getRetEffectFromAnnotations(RetTy, MD))
-    Template->setRetEffect(*RetE);
-}
-
-const RetainSummary *
-RetainSummaryManager::getStandardMethodSummary(const ObjCMethodDecl *MD,
-                                               Selector S, QualType RetTy) {
-  // Any special effects?
-  ArgEffect ReceiverEff = DoNothing;
-  RetEffect ResultEff = RetEffect::MakeNoRet();
-
-  // Check the method family, and apply any default annotations.
-  switch (MD ? MD->getMethodFamily() : S.getMethodFamily()) {
-    case OMF_None:
-    case OMF_initialize:
-    case OMF_performSelector:
-      // Assume all Objective-C methods follow Cocoa Memory Management rules.
-      // FIXME: Does the non-threaded performSelector family really belong here?
-      // The selector could be, say, @selector(copy).
-      if (cocoa::isCocoaObjectRef(RetTy))
-        ResultEff = RetEffect::MakeNotOwned(RetEffect::ObjC);
-      else if (coreFoundation::isCFObjectRef(RetTy)) {
-        // ObjCMethodDecl currently doesn't consider CF objects as valid return
-        // values for alloc, new, copy, or mutableCopy, so we have to
-        // double-check with the selector. This is ugly, but there aren't that
-        // many Objective-C methods that return CF objects, right?
-        if (MD) {
-          switch (S.getMethodFamily()) {
-          case OMF_alloc:
-          case OMF_new:
-          case OMF_copy:
-          case OMF_mutableCopy:
-            ResultEff = RetEffect::MakeOwned(RetEffect::CF);
-            break;
-          default:
-            ResultEff = RetEffect::MakeNotOwned(RetEffect::CF);
-            break;
-          }
-        } else {
-          ResultEff = RetEffect::MakeNotOwned(RetEffect::CF);
-        }
-      }
-      break;
-    case OMF_init:
-      ResultEff = ObjCInitRetE;
-      ReceiverEff = DecRefMsg;
-      break;
-    case OMF_alloc:
-    case OMF_new:
-    case OMF_copy:
-    case OMF_mutableCopy:
-      if (cocoa::isCocoaObjectRef(RetTy))
-        ResultEff = ObjCAllocRetE;
-      else if (coreFoundation::isCFObjectRef(RetTy))
-        ResultEff = RetEffect::MakeOwned(RetEffect::CF);
-      break;
-    case OMF_autorelease:
-      ReceiverEff = Autorelease;
-      break;
-    case OMF_retain:
-      ReceiverEff = IncRefMsg;
-      break;
-    case OMF_release:
-      ReceiverEff = DecRefMsg;
-      break;
-    case OMF_dealloc:
-      ReceiverEff = Dealloc;
-      break;
-    case OMF_self:
-      // -self is handled specially by the ExprEngine to propagate the receiver.
-      break;
-    case OMF_retainCount:
-    case OMF_finalize:
-      // These methods don't return objects.
-      break;
-  }
-
-  // If one of the arguments in the selector has the keyword 'delegate' we
-  // should stop tracking the reference count for the receiver.  This is
-  // because the reference count is quite possibly handled by a delegate
-  // method.
-  if (S.isKeywordSelector()) {
-    for (unsigned i = 0, e = S.getNumArgs(); i != e; ++i) {
-      StringRef Slot = S.getNameForSlot(i);
-      if (Slot.substr(Slot.size() - 8).equals_lower("delegate")) {
-        if (ResultEff == ObjCInitRetE)
-          ResultEff = RetEffect::MakeNoRetHard();
-        else
-          ReceiverEff = StopTrackingHard;
-      }
-    }
-  }
-
-  if (ScratchArgs.isEmpty() && ReceiverEff == DoNothing &&
-      ResultEff.getKind() == RetEffect::NoRet)
-    return getDefaultSummary();
-
-  return getPersistentSummary(ResultEff, ReceiverEff, MayEscape);
-}
-
-const RetainSummary *RetainSummaryManager::getInstanceMethodSummary(
-    const ObjCMethodCall &Msg, QualType ReceiverType) {
-  const ObjCInterfaceDecl *ReceiverClass = nullptr;
-
-  // We do better tracking of the type of the object than the core ExprEngine.
-  // See if we have its type in our private state.
-  if (!ReceiverType.isNull())
-    if (const auto *PT = ReceiverType->getAs<ObjCObjectPointerType>())
-      ReceiverClass = PT->getInterfaceDecl();
-
-  // If we don't know what kind of object this is, fall back to its static type.
-  if (!ReceiverClass)
-    ReceiverClass = Msg.getReceiverInterface();
-
-  // FIXME: The receiver could be a reference to a class, meaning that
-  //  we should use the class method.
-  // id x = [NSObject class];
-  // [x performSelector:... withObject:... afterDelay:...];
-  Selector S = Msg.getSelector();
-  const ObjCMethodDecl *Method = Msg.getDecl();
-  if (!Method && ReceiverClass)
-    Method = ReceiverClass->getInstanceMethod(S);
-
-  return getMethodSummary(S, ReceiverClass, Method, Msg.getResultType(),
-                          ObjCMethodSummaries);
-}
-
-const RetainSummary *
-RetainSummaryManager::getMethodSummary(Selector S, const ObjCInterfaceDecl *ID,
-                                       const ObjCMethodDecl *MD, QualType RetTy,
-                                       ObjCMethodSummariesTy &CachedSummaries) {
-
-  // Look up a summary in our summary cache.
-  const RetainSummary *Summ = CachedSummaries.find(ID, S);
-
-  if (!Summ) {
-    Summ = getStandardMethodSummary(MD, S, RetTy);
-
-    // Annotations override defaults.
-    updateSummaryFromAnnotations(Summ, MD);
-
-    // Memoize the summary.
-    CachedSummaries[ObjCSummaryKey(ID, S)] = Summ;
-  }
-
-  return Summ;
-}
-
-void RetainSummaryManager::InitializeClassMethodSummaries() {
-  assert(ScratchArgs.isEmpty());
-  // Create the [NSAssertionHandler currentHander] summary.
-  addClassMethSummary("NSAssertionHandler", "currentHandler",
-                getPersistentSummary(RetEffect::MakeNotOwned(RetEffect::ObjC)));
-
-  // Create the [NSAutoreleasePool addObject:] summary.
-  ScratchArgs = AF.add(ScratchArgs, 0, Autorelease);
-  addClassMethSummary("NSAutoreleasePool", "addObject",
-                      getPersistentSummary(RetEffect::MakeNoRet(),
-                                           DoNothing, Autorelease));
-}
-
-void RetainSummaryManager::InitializeMethodSummaries() {
-
-  assert (ScratchArgs.isEmpty());
-
-  // Create the "init" selector.  It just acts as a pass-through for the
-  // receiver.
-  const RetainSummary *InitSumm = getPersistentSummary(ObjCInitRetE, DecRefMsg);
-  addNSObjectMethSummary(GetNullarySelector("init", Ctx), InitSumm);
-
-  // awakeAfterUsingCoder: behaves basically like an 'init' method.  It
-  // claims the receiver and returns a retained object.
-  addNSObjectMethSummary(GetUnarySelector("awakeAfterUsingCoder", Ctx),
-                         InitSumm);
-
-  // The next methods are allocators.
-  const RetainSummary *AllocSumm = getPersistentSummary(ObjCAllocRetE);
-  const RetainSummary *CFAllocSumm =
-    getPersistentSummary(RetEffect::MakeOwned(RetEffect::CF));
-
-  // Create the "retain" selector.
-  RetEffect NoRet = RetEffect::MakeNoRet();
-  const RetainSummary *Summ = getPersistentSummary(NoRet, IncRefMsg);
-  addNSObjectMethSummary(GetNullarySelector("retain", Ctx), Summ);
-
-  // Create the "release" selector.
-  Summ = getPersistentSummary(NoRet, DecRefMsg);
-  addNSObjectMethSummary(GetNullarySelector("release", Ctx), Summ);
-
-  // Create the -dealloc summary.
-  Summ = getPersistentSummary(NoRet, Dealloc);
-  addNSObjectMethSummary(GetNullarySelector("dealloc", Ctx), Summ);
-
-  // Create the "autorelease" selector.
-  Summ = getPersistentSummary(NoRet, Autorelease);
-  addNSObjectMethSummary(GetNullarySelector("autorelease", Ctx), Summ);
-
-  // For NSWindow, allocated objects are (initially) self-owned.
-  // FIXME: For now we opt for false negatives with NSWindow, as these objects
-  //  self-own themselves.  However, they only do this once they are displayed.
-  //  Thus, we need to track an NSWindow's display status.
-  //  This is tracked in <rdar://problem/6062711>.
-  //  See also http://llvm.org/bugs/show_bug.cgi?id=3714.
-  const RetainSummary *NoTrackYet = getPersistentSummary(RetEffect::MakeNoRet(),
-                                                   StopTracking,
-                                                   StopTracking);
-
-  addClassMethSummary("NSWindow", "alloc", NoTrackYet);
-
-  // For NSPanel (which subclasses NSWindow), allocated objects are not
-  //  self-owned.
-  // FIXME: For now we don't track NSPanels. object for the same reason
-  //   as for NSWindow objects.
-  addClassMethSummary("NSPanel", "alloc", NoTrackYet);
-
-  // For NSNull, objects returned by +null are singletons that ignore
-  // retain/release semantics.  Just don't track them.
-  // <rdar://problem/12858915>
-  addClassMethSummary("NSNull", "null", NoTrackYet);
-
-  // Don't track allocated autorelease pools, as it is okay to prematurely
-  // exit a method.
-  addClassMethSummary("NSAutoreleasePool", "alloc", NoTrackYet);
-  addClassMethSummary("NSAutoreleasePool", "allocWithZone", NoTrackYet, false);
-  addClassMethSummary("NSAutoreleasePool", "new", NoTrackYet);
-
-  // Create summaries QCRenderer/QCView -createSnapShotImageOfType:
-  addInstMethSummary("QCRenderer", AllocSumm, "createSnapshotImageOfType");
-  addInstMethSummary("QCView", AllocSumm, "createSnapshotImageOfType");
-
-  // Create summaries for CIContext, 'createCGImage' and
-  // 'createCGLayerWithSize'.  These objects are CF objects, and are not
-  // automatically garbage collected.
-  addInstMethSummary("CIContext", CFAllocSumm, "createCGImage", "fromRect");
-  addInstMethSummary("CIContext", CFAllocSumm, "createCGImage", "fromRect",
-                     "format", "colorSpace");
-  addInstMethSummary("CIContext", CFAllocSumm, "createCGLayerWithSize", "info");
-}
-
-CallEffects CallEffects::getEffect(const ObjCMethodDecl *MD) {
-  ASTContext &Ctx = MD->getASTContext();
-  LangOptions L = Ctx.getLangOpts();
-  RetainSummaryManager M(Ctx, L.ObjCAutoRefCount);
-  const RetainSummary *S = M.getMethodSummary(MD);
-  CallEffects CE(S->getRetEffect());
-  CE.Receiver = S->getReceiverEffect();
-  unsigned N = MD->param_size();
-  for (unsigned i = 0; i < N; ++i) {
-    CE.Args.push_back(S->getArg(i));
-  }
-  return CE;
-}
-
-CallEffects CallEffects::getEffect(const FunctionDecl *FD) {
-  ASTContext &Ctx = FD->getASTContext();
-  LangOptions L = Ctx.getLangOpts();
-  RetainSummaryManager M(Ctx, L.ObjCAutoRefCount);
-  const RetainSummary *S = M.getFunctionSummary(FD);
-  CallEffects CE(S->getRetEffect());
-  unsigned N = FD->param_size();
-  for (unsigned i = 0; i < N; ++i) {
-    CE.Args.push_back(S->getArg(i));
-  }
-  return CE;
-}