forked from OSchip/llvm-project
347 lines
12 KiB
C++
347 lines
12 KiB
C++
//===-- AnalyzerOptions.cpp - Analysis Engine Options -----------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file contains special accessors for analyzer configuration options
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// with string representations.
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//
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//===----------------------------------------------------------------------===//
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#include "clang/StaticAnalyzer/Core/AnalyzerOptions.h"
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#include "clang/StaticAnalyzer/Core/Checker.h"
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#include "llvm/ADT/SmallString.h"
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#include "llvm/ADT/StringSwitch.h"
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#include "llvm/Support/ErrorHandling.h"
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#include "llvm/Support/raw_ostream.h"
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using namespace clang;
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using namespace ento;
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using namespace llvm;
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AnalyzerOptions::UserModeKind AnalyzerOptions::getUserMode() {
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if (UserMode == UMK_NotSet) {
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StringRef ModeStr =
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Config.insert(std::make_pair("mode", "deep")).first->second;
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UserMode = llvm::StringSwitch<UserModeKind>(ModeStr)
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.Case("shallow", UMK_Shallow)
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.Case("deep", UMK_Deep)
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.Default(UMK_NotSet);
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assert(UserMode != UMK_NotSet && "User mode is invalid.");
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}
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return UserMode;
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}
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IPAKind AnalyzerOptions::getIPAMode() {
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if (IPAMode == IPAK_NotSet) {
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// Use the User Mode to set the default IPA value.
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// Note, we have to add the string to the Config map for the ConfigDumper
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// checker to function properly.
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const char *DefaultIPA = nullptr;
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UserModeKind HighLevelMode = getUserMode();
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if (HighLevelMode == UMK_Shallow)
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DefaultIPA = "inlining";
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else if (HighLevelMode == UMK_Deep)
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DefaultIPA = "dynamic-bifurcate";
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assert(DefaultIPA);
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// Lookup the ipa configuration option, use the default from User Mode.
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StringRef ModeStr =
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Config.insert(std::make_pair("ipa", DefaultIPA)).first->second;
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IPAKind IPAConfig = llvm::StringSwitch<IPAKind>(ModeStr)
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.Case("none", IPAK_None)
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.Case("basic-inlining", IPAK_BasicInlining)
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.Case("inlining", IPAK_Inlining)
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.Case("dynamic", IPAK_DynamicDispatch)
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.Case("dynamic-bifurcate", IPAK_DynamicDispatchBifurcate)
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.Default(IPAK_NotSet);
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assert(IPAConfig != IPAK_NotSet && "IPA Mode is invalid.");
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// Set the member variable.
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IPAMode = IPAConfig;
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}
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return IPAMode;
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}
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bool
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AnalyzerOptions::mayInlineCXXMemberFunction(CXXInlineableMemberKind K) {
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if (getIPAMode() < IPAK_Inlining)
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return false;
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if (!CXXMemberInliningMode) {
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static const char *ModeKey = "c++-inlining";
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StringRef ModeStr =
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Config.insert(std::make_pair(ModeKey, "destructors")).first->second;
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CXXInlineableMemberKind &MutableMode =
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const_cast<CXXInlineableMemberKind &>(CXXMemberInliningMode);
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MutableMode = llvm::StringSwitch<CXXInlineableMemberKind>(ModeStr)
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.Case("constructors", CIMK_Constructors)
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.Case("destructors", CIMK_Destructors)
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.Case("none", CIMK_None)
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.Case("methods", CIMK_MemberFunctions)
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.Default(CXXInlineableMemberKind());
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if (!MutableMode) {
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// FIXME: We should emit a warning here about an unknown inlining kind,
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// but the AnalyzerOptions doesn't have access to a diagnostic engine.
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MutableMode = CIMK_None;
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}
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}
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return CXXMemberInliningMode >= K;
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}
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static StringRef toString(bool b) { return b ? "true" : "false"; }
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StringRef AnalyzerOptions::getCheckerOption(StringRef CheckerName,
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StringRef OptionName,
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StringRef Default,
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bool SearchInParents) {
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// Search for a package option if the option for the checker is not specified
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// and search in parents is enabled.
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ConfigTable::const_iterator E = Config.end();
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do {
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ConfigTable::const_iterator I =
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Config.find((Twine(CheckerName) + ":" + OptionName).str());
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if (I != E)
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return StringRef(I->getValue());
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size_t Pos = CheckerName.rfind('.');
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if (Pos == StringRef::npos)
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return Default;
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CheckerName = CheckerName.substr(0, Pos);
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} while (!CheckerName.empty() && SearchInParents);
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return Default;
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}
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bool AnalyzerOptions::getBooleanOption(StringRef Name, bool DefaultVal,
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const CheckerBase *C,
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bool SearchInParents) {
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// FIXME: We should emit a warning here if the value is something other than
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// "true", "false", or the empty string (meaning the default value),
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// but the AnalyzerOptions doesn't have access to a diagnostic engine.
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StringRef Default = toString(DefaultVal);
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StringRef V =
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C ? getCheckerOption(C->getTagDescription(), Name, Default,
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SearchInParents)
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: StringRef(Config.insert(std::make_pair(Name, Default)).first->second);
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return llvm::StringSwitch<bool>(V)
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.Case("true", true)
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.Case("false", false)
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.Default(DefaultVal);
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}
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bool AnalyzerOptions::getBooleanOption(Optional<bool> &V, StringRef Name,
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bool DefaultVal, const CheckerBase *C,
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bool SearchInParents) {
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if (!V.hasValue())
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V = getBooleanOption(Name, DefaultVal, C, SearchInParents);
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return V.getValue();
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}
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bool AnalyzerOptions::includeTemporaryDtorsInCFG() {
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return getBooleanOption(IncludeTemporaryDtorsInCFG,
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"cfg-temporary-dtors",
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/* Default = */ false);
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}
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bool AnalyzerOptions::mayInlineCXXStandardLibrary() {
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return getBooleanOption(InlineCXXStandardLibrary,
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"c++-stdlib-inlining",
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/*Default=*/true);
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}
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bool AnalyzerOptions::mayInlineTemplateFunctions() {
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return getBooleanOption(InlineTemplateFunctions,
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"c++-template-inlining",
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/*Default=*/true);
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}
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bool AnalyzerOptions::mayInlineCXXAllocator() {
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return getBooleanOption(InlineCXXAllocator,
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"c++-allocator-inlining",
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/*Default=*/false);
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}
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bool AnalyzerOptions::mayInlineCXXContainerMethods() {
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return getBooleanOption(InlineCXXContainerMethods,
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"c++-container-inlining",
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/*Default=*/false);
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}
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bool AnalyzerOptions::mayInlineCXXSharedPtrDtor() {
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return getBooleanOption(InlineCXXSharedPtrDtor,
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"c++-shared_ptr-inlining",
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/*Default=*/false);
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}
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bool AnalyzerOptions::mayInlineObjCMethod() {
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return getBooleanOption(ObjCInliningMode,
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"objc-inlining",
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/* Default = */ true);
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}
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bool AnalyzerOptions::shouldSuppressNullReturnPaths() {
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return getBooleanOption(SuppressNullReturnPaths,
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"suppress-null-return-paths",
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/* Default = */ true);
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}
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bool AnalyzerOptions::shouldAvoidSuppressingNullArgumentPaths() {
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return getBooleanOption(AvoidSuppressingNullArgumentPaths,
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"avoid-suppressing-null-argument-paths",
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/* Default = */ false);
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}
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bool AnalyzerOptions::shouldSuppressInlinedDefensiveChecks() {
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return getBooleanOption(SuppressInlinedDefensiveChecks,
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"suppress-inlined-defensive-checks",
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/* Default = */ true);
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}
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bool AnalyzerOptions::shouldSuppressFromCXXStandardLibrary() {
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return getBooleanOption(SuppressFromCXXStandardLibrary,
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"suppress-c++-stdlib",
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/* Default = */ false);
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}
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bool AnalyzerOptions::shouldReportIssuesInMainSourceFile() {
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return getBooleanOption(ReportIssuesInMainSourceFile,
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"report-in-main-source-file",
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/* Default = */ false);
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}
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bool AnalyzerOptions::shouldWriteStableReportFilename() {
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return getBooleanOption(StableReportFilename,
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"stable-report-filename",
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/* Default = */ false);
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}
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int AnalyzerOptions::getOptionAsInteger(StringRef Name, int DefaultVal,
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const CheckerBase *C,
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bool SearchInParents) {
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SmallString<10> StrBuf;
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llvm::raw_svector_ostream OS(StrBuf);
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OS << DefaultVal;
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StringRef V = C ? getCheckerOption(C->getTagDescription(), Name, OS.str(),
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SearchInParents)
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: StringRef(Config.insert(std::make_pair(Name, OS.str()))
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.first->second);
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int Res = DefaultVal;
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bool b = V.getAsInteger(10, Res);
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assert(!b && "analyzer-config option should be numeric");
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(void)b;
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return Res;
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}
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StringRef AnalyzerOptions::getOptionAsString(StringRef Name,
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StringRef DefaultVal,
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const CheckerBase *C,
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bool SearchInParents) {
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return C ? getCheckerOption(C->getTagDescription(), Name, DefaultVal,
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SearchInParents)
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: StringRef(
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Config.insert(std::make_pair(Name, DefaultVal)).first->second);
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}
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unsigned AnalyzerOptions::getAlwaysInlineSize() {
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if (!AlwaysInlineSize.hasValue())
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AlwaysInlineSize = getOptionAsInteger("ipa-always-inline-size", 3);
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return AlwaysInlineSize.getValue();
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}
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unsigned AnalyzerOptions::getMaxInlinableSize() {
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if (!MaxInlinableSize.hasValue()) {
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int DefaultValue = 0;
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UserModeKind HighLevelMode = getUserMode();
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switch (HighLevelMode) {
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default:
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llvm_unreachable("Invalid mode.");
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case UMK_Shallow:
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DefaultValue = 4;
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break;
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case UMK_Deep:
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DefaultValue = 50;
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break;
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}
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MaxInlinableSize = getOptionAsInteger("max-inlinable-size", DefaultValue);
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}
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return MaxInlinableSize.getValue();
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}
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unsigned AnalyzerOptions::getGraphTrimInterval() {
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if (!GraphTrimInterval.hasValue())
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GraphTrimInterval = getOptionAsInteger("graph-trim-interval", 1000);
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return GraphTrimInterval.getValue();
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}
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unsigned AnalyzerOptions::getMaxTimesInlineLarge() {
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if (!MaxTimesInlineLarge.hasValue())
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MaxTimesInlineLarge = getOptionAsInteger("max-times-inline-large", 32);
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return MaxTimesInlineLarge.getValue();
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}
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unsigned AnalyzerOptions::getMinCFGSizeTreatFunctionsAsLarge() {
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if (!MinCFGSizeTreatFunctionsAsLarge.hasValue())
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MinCFGSizeTreatFunctionsAsLarge = getOptionAsInteger(
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"min-cfg-size-treat-functions-as-large", 14);
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return MinCFGSizeTreatFunctionsAsLarge.getValue();
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}
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unsigned AnalyzerOptions::getMaxNodesPerTopLevelFunction() {
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if (!MaxNodesPerTopLevelFunction.hasValue()) {
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int DefaultValue = 0;
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UserModeKind HighLevelMode = getUserMode();
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switch (HighLevelMode) {
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default:
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llvm_unreachable("Invalid mode.");
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case UMK_Shallow:
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DefaultValue = 75000;
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break;
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case UMK_Deep:
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DefaultValue = 150000;
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break;
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}
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MaxNodesPerTopLevelFunction = getOptionAsInteger("max-nodes", DefaultValue);
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}
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return MaxNodesPerTopLevelFunction.getValue();
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}
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bool AnalyzerOptions::shouldSynthesizeBodies() {
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return getBooleanOption("faux-bodies", true);
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}
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bool AnalyzerOptions::shouldPrunePaths() {
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return getBooleanOption("prune-paths", true);
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}
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bool AnalyzerOptions::shouldConditionalizeStaticInitializers() {
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return getBooleanOption("cfg-conditional-static-initializers", true);
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}
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bool AnalyzerOptions::shouldInlineLambdas() {
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if (!InlineLambdas.hasValue())
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InlineLambdas = getBooleanOption("inline-lambdas", /*Default=*/true);
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return InlineLambdas.getValue();
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}
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bool AnalyzerOptions::shouldWidenLoops() {
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if (!WidenLoops.hasValue())
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WidenLoops = getBooleanOption("widen-loops", /*Default=*/false);
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return WidenLoops.getValue();
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}
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