r201274 - MS ABI: Implement #pragma vtordisp() and clang-cl /vdN
Reid Kleckner
reid at kleckner.net
Wed Feb 12 15:50:27 PST 2014
Author: rnk
Date: Wed Feb 12 17:50:26 2014
New Revision: 201274
URL: http://llvm.org/viewvc/llvm-project?rev=201274&view=rev
Log:
MS ABI: Implement #pragma vtordisp() and clang-cl /vdN
These features are new in VS 2013 and are necessary in order to layout
std::ostream correctly. Currently we have an ABI incompatibility when
self-hosting with the 2013 stdlib in our convertible_fwd_ostream wrapper
in gtest.
This change adds another implicit attribute, MSVtorDispAttr, because
implicit attributes are currently the best way to make sure the
information stays on class templates through instantiation.
Reviewers: majnemer
Differential Revision: http://llvm-reviews.chandlerc.com/D2746
Added:
cfe/trunk/test/SemaCXX/pragma-vtordisp.cpp
cfe/trunk/test/SemaCXX/vtordisp-mode.cpp
Modified:
cfe/trunk/include/clang/AST/DeclCXX.h
cfe/trunk/include/clang/Basic/Attr.td
cfe/trunk/include/clang/Basic/DiagnosticParseKinds.td
cfe/trunk/include/clang/Basic/DiagnosticSemaKinds.td
cfe/trunk/include/clang/Basic/LangOptions.def
cfe/trunk/include/clang/Basic/TokenKinds.def
cfe/trunk/include/clang/Driver/CC1Options.td
cfe/trunk/include/clang/Driver/CLCompatOptions.td
cfe/trunk/include/clang/Lex/Preprocessor.h
cfe/trunk/include/clang/Parse/Parser.h
cfe/trunk/include/clang/Sema/Sema.h
cfe/trunk/lib/AST/MicrosoftCXXABI.cpp
cfe/trunk/lib/AST/RecordLayoutBuilder.cpp
cfe/trunk/lib/Driver/Tools.cpp
cfe/trunk/lib/Frontend/CompilerInvocation.cpp
cfe/trunk/lib/Lex/Pragma.cpp
cfe/trunk/lib/Lex/Preprocessor.cpp
cfe/trunk/lib/Parse/ParsePragma.cpp
cfe/trunk/lib/Parse/ParsePragma.h
cfe/trunk/lib/Parse/Parser.cpp
cfe/trunk/lib/Sema/Sema.cpp
cfe/trunk/lib/Sema/SemaAttr.cpp
cfe/trunk/test/Layout/ms-x86-vtordisp.cpp
Modified: cfe/trunk/include/clang/AST/DeclCXX.h
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/include/clang/AST/DeclCXX.h?rev=201274&r1=201273&r2=201274&view=diff
==============================================================================
--- cfe/trunk/include/clang/AST/DeclCXX.h (original)
+++ cfe/trunk/include/clang/AST/DeclCXX.h Wed Feb 12 17:50:26 2014
@@ -1615,6 +1615,10 @@ public:
(hasDefinition() && isPolymorphic());
}
+ /// \brief Controls when vtordisps will be emitted if this record is used as a
+ /// virtual base.
+ MSVtorDispAttr::Mode getMSVtorDispMode() const;
+
/// \brief Determine whether this lambda expression was known to be dependent
/// at the time it was created, even if its context does not appear to be
/// dependent.
Modified: cfe/trunk/include/clang/Basic/Attr.td
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/include/clang/Basic/Attr.td?rev=201274&r1=201273&r2=201274&view=diff
==============================================================================
--- cfe/trunk/include/clang/Basic/Attr.td (original)
+++ cfe/trunk/include/clang/Basic/Attr.td Wed Feb 12 17:50:26 2014
@@ -1431,6 +1431,23 @@ def MSInheritance : InheritableAttr {
}];
}
+def MSVtorDisp : InheritableAttr {
+ // This attribute has no spellings as it is only ever created implicitly.
+ let Spellings = [];
+ let Args = [UnsignedArgument<"vdm">];
+ let SemaHandler = 0;
+
+ let AdditionalMembers = [{
+ enum Mode {
+ Never,
+ ForVBaseOverride,
+ ForVFTable
+ };
+
+ Mode getVtorDispMode() const { return Mode(vdm); }
+ }];
+}
+
def Unaligned : IgnoredAttr {
let Spellings = [Keyword<"__unaligned">];
}
Modified: cfe/trunk/include/clang/Basic/DiagnosticParseKinds.td
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/include/clang/Basic/DiagnosticParseKinds.td?rev=201274&r1=201273&r2=201274&view=diff
==============================================================================
--- cfe/trunk/include/clang/Basic/DiagnosticParseKinds.td (original)
+++ cfe/trunk/include/clang/Basic/DiagnosticParseKinds.td Wed Feb 12 17:50:26 2014
@@ -770,6 +770,9 @@ def warn_pragma_expected_rparen : Warnin
"missing ')' after '#pragma %0' - ignoring">, InGroup<IgnoredPragmas>;
def warn_pragma_expected_identifier : Warning<
"expected identifier in '#pragma %0' - ignored">, InGroup<IgnoredPragmas>;
+def warn_pragma_expected_integer : Warning<
+ "expected integer between %0 and %1 inclusive in '#pragma %2' - ignored">,
+ InGroup<IgnoredPragmas>;
def warn_pragma_ms_struct : Warning<
"incorrect use of '#pragma ms_struct on|off' - ignored">,
InGroup<IgnoredPragmas>;
@@ -789,8 +792,8 @@ def warn_pragma_align_invalid_option : W
"invalid alignment option in '#pragma %select{align|options align}0' - ignored">,
InGroup<IgnoredPragmas>;
// - #pragma pack
-def warn_pragma_pack_invalid_action : Warning<
- "unknown action for '#pragma pack' - ignored">,
+def warn_pragma_invalid_action : Warning<
+ "unknown action for '#pragma %0' - ignored">,
InGroup<IgnoredPragmas>;
def warn_pragma_pack_malformed : Warning<
"expected integer or identifier in '#pragma pack' - ignored">,
Modified: cfe/trunk/include/clang/Basic/DiagnosticSemaKinds.td
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/include/clang/Basic/DiagnosticSemaKinds.td?rev=201274&r1=201273&r2=201274&view=diff
==============================================================================
--- cfe/trunk/include/clang/Basic/DiagnosticSemaKinds.td (original)
+++ cfe/trunk/include/clang/Basic/DiagnosticSemaKinds.td Wed Feb 12 17:50:26 2014
@@ -480,7 +480,7 @@ def warn_pragma_pack_invalid_alignment :
def warn_pragma_pack_show : Warning<"value of #pragma pack(show) == %0">;
def warn_pragma_pack_pop_identifer_and_alignment : Warning<
"specifying both a name and alignment to 'pop' is undefined">;
-def warn_pragma_pack_pop_failed : Warning<"#pragma pack(pop, ...) failed: %0">,
+def warn_pragma_pop_failed : Warning<"#pragma %0(pop, ...) failed: %1">,
InGroup<IgnoredPragmas>;
def warn_pragma_ms_struct_failed : Warning<"#pramga ms_struct can not be used with dynamic classes or structures">,
InGroup<IgnoredPragmas>;
Modified: cfe/trunk/include/clang/Basic/LangOptions.def
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/include/clang/Basic/LangOptions.def?rev=201274&r1=201273&r2=201274&view=diff
==============================================================================
--- cfe/trunk/include/clang/Basic/LangOptions.def (original)
+++ cfe/trunk/include/clang/Basic/LangOptions.def Wed Feb 12 17:50:26 2014
@@ -176,6 +176,7 @@ BENIGN_LANGOPT(NumLargeByValueCopy, 32,
"if non-zero, warn about parameter or return Warn if parameter/return value is larger in bytes than this setting. 0 is no check.")
VALUE_LANGOPT(MSCVersion, 32, 0,
"version of Microsoft Visual C/C++")
+VALUE_LANGOPT(VtorDispMode, 2, 1, "How many vtordisps to insert")
LANGOPT(ApplePragmaPack, 1, 0, "Apple gcc-compatible #pragma pack handling")
Modified: cfe/trunk/include/clang/Basic/TokenKinds.def
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/include/clang/Basic/TokenKinds.def?rev=201274&r1=201273&r2=201274&view=diff
==============================================================================
--- cfe/trunk/include/clang/Basic/TokenKinds.def (original)
+++ cfe/trunk/include/clang/Basic/TokenKinds.def Wed Feb 12 17:50:26 2014
@@ -678,6 +678,11 @@ ANNOTATION(pragma_fp_contract)
// handles them.
ANNOTATION(pragma_ms_pointers_to_members)
+// Annotation for #pragma vtordisp...
+// The lexer produces these so that they only take effect when the parser
+// handles them.
+ANNOTATION(pragma_ms_vtordisp)
+
// Annotation for #pragma OPENCL EXTENSION...
// The lexer produces these so that they only take effect when the parser
// handles them.
Modified: cfe/trunk/include/clang/Driver/CC1Options.td
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/include/clang/Driver/CC1Options.td?rev=201274&r1=201273&r2=201274&view=diff
==============================================================================
--- cfe/trunk/include/clang/Driver/CC1Options.td (original)
+++ cfe/trunk/include/clang/Driver/CC1Options.td Wed Feb 12 17:50:26 2014
@@ -474,6 +474,8 @@ def fsized_deallocation : Flag<["-"], "f
HelpText<"Enable C++1y sized global deallocation functions">;
def fobjc_subscripting_legacy_runtime : Flag<["-"], "fobjc-subscripting-legacy-runtime">,
HelpText<"Allow Objective-C array and dictionary subscripting in legacy runtime">;
+def vtordisp_mode_EQ : Joined<["-"], "vtordisp-mode=">,
+ HelpText<"Control vtordisp placement on win32 targets">;
//===----------------------------------------------------------------------===//
// Header Search Options
Modified: cfe/trunk/include/clang/Driver/CLCompatOptions.td
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/include/clang/Driver/CLCompatOptions.td?rev=201274&r1=201273&r2=201274&view=diff
==============================================================================
--- cfe/trunk/include/clang/Driver/CLCompatOptions.td (original)
+++ cfe/trunk/include/clang/Driver/CLCompatOptions.td Wed Feb 12 17:50:26 2014
@@ -117,6 +117,8 @@ def _SLASH_WX : CLFlag<"WX">, HelpText<"
def _SLASH_WX_ : CLFlag<"WX-">, HelpText<"Do not treat warnings as errors">,
Alias<W_Joined>, AliasArgs<["no-error"]>;
def _SLASH_w_flag : CLFlag<"w">, HelpText<"Disable all warnings">, Alias<w>;
+def _SLASH_vd : CLJoined<"vd">, HelpText<"Control vtordisp placement">,
+ Alias<vtordisp_mode_EQ>;
def _SLASH_Z7 : CLFlag<"Z7">, Alias<gline_tables_only>;
def _SLASH_Zi : CLFlag<"Zi">, HelpText<"Enable debug information">,
Alias<gline_tables_only>;
@@ -241,7 +243,6 @@ def _SLASH_Qpar : CLFlag<"Qpar">;
def _SLASH_Qvec_report : CLJoined<"Qvec-report">;
def _SLASH_u : CLFlag<"u">;
def _SLASH_V : CLFlag<"V">;
-def _SLASH_vd : CLJoined<"vd">;
def _SLASH_volatile : CLFlag<"volatile">;
def _SLASH_WL : CLFlag<"WL">;
def _SLASH_Wp64 : CLFlag<"Wp64">;
Modified: cfe/trunk/include/clang/Lex/Preprocessor.h
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/include/clang/Lex/Preprocessor.h?rev=201274&r1=201273&r2=201274&view=diff
==============================================================================
--- cfe/trunk/include/clang/Lex/Preprocessor.h (original)
+++ cfe/trunk/include/clang/Lex/Preprocessor.h Wed Feb 12 17:50:26 2014
@@ -803,6 +803,11 @@ public:
while (Result.getKind() == tok::comment);
}
+ /// \brief Parses a simple integer literal to get its numeric value. Floating
+ /// point literals and user defined literals are rejected. Used primarily to
+ /// handle pragmas that accept integer arguments.
+ bool parseSimpleIntegerLiteral(Token &Tok, uint64_t &Value);
+
/// Disables macro expansion everywhere except for preprocessor directives.
void SetMacroExpansionOnlyInDirectives() {
DisableMacroExpansion = true;
Modified: cfe/trunk/include/clang/Parse/Parser.h
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/include/clang/Parse/Parser.h?rev=201274&r1=201273&r2=201274&view=diff
==============================================================================
--- cfe/trunk/include/clang/Parse/Parser.h (original)
+++ cfe/trunk/include/clang/Parse/Parser.h Wed Feb 12 17:50:26 2014
@@ -156,6 +156,7 @@ class Parser : public CodeCompletionHand
OwningPtr<PragmaHandler> MSCommentHandler;
OwningPtr<PragmaHandler> MSDetectMismatchHandler;
OwningPtr<PragmaHandler> MSPointersToMembers;
+ OwningPtr<PragmaHandler> MSVtorDisp;
/// Whether the '>' token acts as an operator or not. This will be
/// true except when we are parsing an expression within a C++
@@ -460,6 +461,8 @@ private:
void HandlePragmaMSPointersToMembers();
+ void HandlePragmaMSVtorDisp();
+
/// \brief Handle the annotation token produced for
/// #pragma align...
void HandlePragmaAlign();
Modified: cfe/trunk/include/clang/Sema/Sema.h
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/include/clang/Sema/Sema.h?rev=201274&r1=201273&r2=201274&view=diff
==============================================================================
--- cfe/trunk/include/clang/Sema/Sema.h (original)
+++ cfe/trunk/include/clang/Sema/Sema.h Wed Feb 12 17:50:26 2014
@@ -266,6 +266,25 @@ public:
LangOptions::PragmaMSPointersToMembersKind
MSPointerToMemberRepresentationMethod;
+ enum PragmaVtorDispKind {
+ PVDK_Push, //< #pragma vtordisp(push, mode)
+ PVDK_Set, //< #pragma vtordisp(mode)
+ PVDK_Pop, //< #pragma vtordisp(pop)
+ PVDK_Reset //< #pragma vtordisp()
+ };
+
+ /// \brief Whether to insert vtordisps prior to virtual bases in the Microsoft
+ /// C++ ABI. Possible values are 0, 1, and 2, which mean:
+ ///
+ /// 0: Suppress all vtordisps
+ /// 1: Insert vtordisps in the presence of vbase overrides and non-trivial
+ /// structors
+ /// 2: Always insert vtordisps to support RTTI on partially constructed
+ /// objects
+ ///
+ /// The stack always has at least one element in it.
+ SmallVector<MSVtorDispAttr::Mode, 2> VtorDispModeStack;
+
/// \brief Source location for newly created implicit MSInheritanceAttrs
SourceLocation ImplicitMSInheritanceAttrLoc;
@@ -6984,6 +7003,10 @@ public:
LangOptions::PragmaMSPointersToMembersKind Kind,
SourceLocation PragmaLoc);
+ /// \brief Called on well formed \#pragma vtordisp().
+ void ActOnPragmaMSVtorDisp(PragmaVtorDispKind Kind, SourceLocation PragmaLoc,
+ MSVtorDispAttr::Mode Value);
+
/// ActOnPragmaDetectMismatch - Call on well-formed \#pragma detect_mismatch
void ActOnPragmaDetectMismatch(StringRef Name, StringRef Value);
Modified: cfe/trunk/lib/AST/MicrosoftCXXABI.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/AST/MicrosoftCXXABI.cpp?rev=201274&r1=201273&r2=201274&view=diff
==============================================================================
--- cfe/trunk/lib/AST/MicrosoftCXXABI.cpp (original)
+++ cfe/trunk/lib/AST/MicrosoftCXXABI.cpp Wed Feb 12 17:50:26 2014
@@ -109,6 +109,12 @@ CXXRecordDecl::getMSInheritanceModel() c
return IA->getSemanticSpelling();
}
+MSVtorDispAttr::Mode CXXRecordDecl::getMSVtorDispMode() const {
+ if (MSVtorDispAttr *VDA = getAttr<MSVtorDispAttr>())
+ return VDA->getVtorDispMode();
+ return MSVtorDispAttr::Mode(getASTContext().getLangOpts().VtorDispMode);
+}
+
// Returns the number of pointer and integer slots used to represent a member
// pointer in the MS C++ ABI.
//
Modified: cfe/trunk/lib/AST/RecordLayoutBuilder.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/AST/RecordLayoutBuilder.cpp?rev=201274&r1=201273&r2=201274&view=diff
==============================================================================
--- cfe/trunk/lib/AST/RecordLayoutBuilder.cpp (original)
+++ cfe/trunk/lib/AST/RecordLayoutBuilder.cpp Wed Feb 12 17:50:26 2014
@@ -2731,6 +2731,30 @@ RequiresVtordisp(const llvm::SmallPtrSet
llvm::SmallPtrSet<const CXXRecordDecl *, 2>
MicrosoftRecordLayoutBuilder::computeVtorDispSet(const CXXRecordDecl *RD) {
llvm::SmallPtrSet<const CXXRecordDecl *, 2> HasVtordispSet;
+
+ // /vd0 or #pragma vtordisp(0): Never use vtordisps when used as a vbase.
+ if (RD->getMSVtorDispMode() == MSVtorDispAttr::Never)
+ return HasVtordispSet;
+
+ // /vd2 or #pragma vtordisp(2): Always use vtordisps for virtual bases with
+ // vftables.
+ if (RD->getMSVtorDispMode() == MSVtorDispAttr::ForVFTable) {
+ for (CXXRecordDecl::base_class_const_iterator I = RD->vbases_begin(),
+ E = RD->vbases_end();
+ I != E; ++I) {
+ const CXXRecordDecl *BaseDecl = I->getType()->getAsCXXRecordDecl();
+ const ASTRecordLayout &Layout = Context.getASTRecordLayout(BaseDecl);
+ if (Layout.hasExtendableVFPtr())
+ HasVtordispSet.insert(BaseDecl);
+ }
+ return HasVtordispSet;
+ }
+
+ // /vd1 or #pragma vtordisp(1): Try to guess based on whether we think it's
+ // possible for a partially constructed object with virtual base overrides to
+ // escape a non-trivial constructor.
+ assert(RD->getMSVtorDispMode() == MSVtorDispAttr::ForVBaseOverride);
+
// If any of our bases need a vtordisp for this type, so do we. Check our
// direct bases for vtordisp requirements.
for (CXXRecordDecl::base_class_const_iterator i = RD->bases_begin(),
Modified: cfe/trunk/lib/Driver/Tools.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Driver/Tools.cpp?rev=201274&r1=201273&r2=201274&view=diff
==============================================================================
--- cfe/trunk/lib/Driver/Tools.cpp (original)
+++ cfe/trunk/lib/Driver/Tools.cpp Wed Feb 12 17:50:26 2014
@@ -4056,6 +4056,9 @@ void Clang::AddClangCLArgs(const ArgList
CmdArgs.push_back("-fms-memptr-rep=virtual");
}
+ if (Arg *A = Args.getLastArg(options::OPT_vtordisp_mode_EQ))
+ A->render(Args, CmdArgs);
+
if (!Args.hasArg(options::OPT_fdiagnostics_format_EQ)) {
CmdArgs.push_back("-fdiagnostics-format");
if (Args.hasArg(options::OPT__SLASH_fallback))
Modified: cfe/trunk/lib/Frontend/CompilerInvocation.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Frontend/CompilerInvocation.cpp?rev=201274&r1=201273&r2=201274&view=diff
==============================================================================
--- cfe/trunk/lib/Frontend/CompilerInvocation.cpp (original)
+++ cfe/trunk/lib/Frontend/CompilerInvocation.cpp Wed Feb 12 17:50:26 2014
@@ -1310,6 +1310,7 @@ static void ParseLangArgs(LangOptions &O
Opts.MicrosoftExt = Opts.MSVCCompat || Args.hasArg(OPT_fms_extensions);
Opts.AsmBlocks = Args.hasArg(OPT_fasm_blocks) || Opts.MicrosoftExt;
Opts.MSCVersion = getLastArgIntValue(Args, OPT_fmsc_version, 0, Diags);
+ Opts.VtorDispMode = getLastArgIntValue(Args, OPT_vtordisp_mode_EQ, 1, Diags);
Opts.Borland = Args.hasArg(OPT_fborland_extensions);
Opts.WritableStrings = Args.hasArg(OPT_fwritable_strings);
Opts.ConstStrings = Args.hasFlag(OPT_fconst_strings, OPT_fno_const_strings,
Modified: cfe/trunk/lib/Lex/Pragma.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Lex/Pragma.cpp?rev=201274&r1=201273&r2=201274&view=diff
==============================================================================
--- cfe/trunk/lib/Lex/Pragma.cpp (original)
+++ cfe/trunk/lib/Lex/Pragma.cpp Wed Feb 12 17:50:26 2014
@@ -1008,24 +1008,6 @@ public:
}
};
-// Returns -1 on failure.
-static int LexSimpleInt(Preprocessor &PP, Token &Tok) {
- assert(Tok.is(tok::numeric_constant));
- SmallString<8> IntegerBuffer;
- bool NumberInvalid = false;
- StringRef Spelling = PP.getSpelling(Tok, IntegerBuffer, &NumberInvalid);
- if (NumberInvalid)
- return -1;
- NumericLiteralParser Literal(Spelling, Tok.getLocation(), PP);
- if (Literal.hadError || !Literal.isIntegerLiteral() || Literal.hasUDSuffix())
- return -1;
- llvm::APInt APVal(32, 0);
- if (Literal.GetIntegerValue(APVal))
- return -1;
- PP.Lex(Tok);
- return int(APVal.getLimitedValue(INT_MAX));
-}
-
/// "\#pragma warning(...)". MSVC's diagnostics do not map cleanly to clang's
/// diagnostics, so we don't really implement this pragma. We parse it and
/// ignore it to avoid -Wunknown-pragma warnings.
@@ -1060,8 +1042,10 @@ struct PragmaWarningHandler : public Pra
PP.Lex(Tok);
if (Tok.is(tok::comma)) {
PP.Lex(Tok);
- if (Tok.is(tok::numeric_constant))
- Level = LexSimpleInt(PP, Tok);
+ uint64_t Value;
+ if (Tok.is(tok::numeric_constant) &&
+ PP.parseSimpleIntegerLiteral(Tok, Value))
+ Level = int(Value);
if (Level < 0 || Level > 4) {
PP.Diag(Tok, diag::warn_pragma_warning_push_level);
return;
@@ -1105,12 +1089,13 @@ struct PragmaWarningHandler : public Pra
SmallVector<int, 4> Ids;
PP.Lex(Tok);
while (Tok.is(tok::numeric_constant)) {
- int Id = LexSimpleInt(PP, Tok);
- if (Id <= 0) {
+ uint64_t Value;
+ if (!PP.parseSimpleIntegerLiteral(Tok, Value) || Value == 0 ||
+ Value > INT_MAX) {
PP.Diag(Tok, diag::warn_pragma_warning_expected_number);
return;
}
- Ids.push_back(Id);
+ Ids.push_back(int(Value));
}
if (Callbacks)
Callbacks->PragmaWarning(DiagLoc, Specifier, Ids);
Modified: cfe/trunk/lib/Lex/Preprocessor.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Lex/Preprocessor.cpp?rev=201274&r1=201273&r2=201274&view=diff
==============================================================================
--- cfe/trunk/lib/Lex/Preprocessor.cpp (original)
+++ cfe/trunk/lib/Lex/Preprocessor.cpp Wed Feb 12 17:50:26 2014
@@ -819,6 +819,24 @@ bool Preprocessor::FinishLexStringLitera
return true;
}
+bool Preprocessor::parseSimpleIntegerLiteral(Token &Tok, uint64_t &Value) {
+ assert(Tok.is(tok::numeric_constant));
+ SmallString<8> IntegerBuffer;
+ bool NumberInvalid = false;
+ StringRef Spelling = getSpelling(Tok, IntegerBuffer, &NumberInvalid);
+ if (NumberInvalid)
+ return false;
+ NumericLiteralParser Literal(Spelling, Tok.getLocation(), *this);
+ if (Literal.hadError || !Literal.isIntegerLiteral() || Literal.hasUDSuffix())
+ return false;
+ llvm::APInt APVal(64, 0);
+ if (Literal.GetIntegerValue(APVal))
+ return false;
+ Lex(Tok);
+ Value = APVal.getLimitedValue();
+ return true;
+}
+
void Preprocessor::addCommentHandler(CommentHandler *Handler) {
assert(Handler && "NULL comment handler");
assert(std::find(CommentHandlers.begin(), CommentHandlers.end(), Handler) ==
Modified: cfe/trunk/lib/Parse/ParsePragma.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Parse/ParsePragma.cpp?rev=201274&r1=201273&r2=201274&view=diff
==============================================================================
--- cfe/trunk/lib/Parse/ParsePragma.cpp (original)
+++ cfe/trunk/lib/Parse/ParsePragma.cpp Wed Feb 12 17:50:26 2014
@@ -189,6 +189,15 @@ void Parser::HandlePragmaMSPointersToMem
Actions.ActOnPragmaMSPointersToMembers(RepresentationMethod, PragmaLoc);
}
+void Parser::HandlePragmaMSVtorDisp() {
+ assert(Tok.is(tok::annot_pragma_ms_vtordisp));
+ uintptr_t Value = reinterpret_cast<uintptr_t>(Tok.getAnnotationValue());
+ Sema::PragmaVtorDispKind Kind =
+ static_cast<Sema::PragmaVtorDispKind>((Value >> 16) & 0xFFFF);
+ MSVtorDispAttr::Mode Mode = MSVtorDispAttr::Mode(Value & 0xFFFF);
+ SourceLocation PragmaLoc = ConsumeToken(); // The annotation token.
+ Actions.ActOnPragmaMSVtorDisp(Kind, PragmaLoc, Mode);
+}
// #pragma GCC visibility comes in two variants:
// 'push' '(' [visibility] ')'
@@ -291,7 +300,7 @@ void PragmaPackHandler::HandlePragma(Pre
} else if (II->isStr("pop")) {
Kind = Sema::PPK_Pop;
} else {
- PP.Diag(Tok.getLocation(), diag::warn_pragma_pack_invalid_action);
+ PP.Diag(Tok.getLocation(), diag::warn_pragma_invalid_action) << "pack";
return;
}
PP.Lex(Tok);
@@ -903,6 +912,97 @@ void PragmaMSPointersToMembers::HandlePr
PP.EnterToken(AnnotTok);
}
+/// \brief Handle '#pragma vtordisp'
+// The grammar for this pragma is as follows:
+//
+// <vtordisp-mode> ::= ('off' | 'on' | '0' | '1' | '2' )
+//
+// #pragma vtordisp '(' ['push' ','] vtordisp-mode ')'
+// #pragma vtordisp '(' 'pop' ')'
+// #pragma vtordisp '(' ')'
+void PragmaMSVtorDisp::HandlePragma(Preprocessor &PP,
+ PragmaIntroducerKind Introducer,
+ Token &Tok) {
+ SourceLocation VtorDispLoc = Tok.getLocation();
+ PP.Lex(Tok);
+ if (Tok.isNot(tok::l_paren)) {
+ PP.Diag(VtorDispLoc, diag::warn_pragma_expected_lparen) << "vtordisp";
+ return;
+ }
+ PP.Lex(Tok);
+
+ Sema::PragmaVtorDispKind Kind = Sema::PVDK_Set;
+ const IdentifierInfo *II = Tok.getIdentifierInfo();
+ if (II) {
+ if (II->isStr("push")) {
+ // #pragma vtordisp(push, mode)
+ PP.Lex(Tok);
+ if (Tok.isNot(tok::comma)) {
+ PP.Diag(VtorDispLoc, diag::warn_pragma_expected_punc) << "vtordisp";
+ return;
+ }
+ PP.Lex(Tok);
+ Kind = Sema::PVDK_Push;
+ // not push, could be on/off
+ } else if (II->isStr("pop")) {
+ // #pragma vtordisp(pop)
+ PP.Lex(Tok);
+ Kind = Sema::PVDK_Pop;
+ }
+ // not push or pop, could be on/off
+ } else {
+ if (Tok.is(tok::r_paren)) {
+ // #pragma vtordisp()
+ Kind = Sema::PVDK_Reset;
+ }
+ }
+
+
+ uint64_t Value;
+ if (Kind == Sema::PVDK_Push || Kind == Sema::PVDK_Set) {
+ const IdentifierInfo *II = Tok.getIdentifierInfo();
+ if (II && II->isStr("off")) {
+ PP.Lex(Tok);
+ Value = 0;
+ } else if (II && II->isStr("on")) {
+ PP.Lex(Tok);
+ Value = 1;
+ } else if (Tok.is(tok::numeric_constant) &&
+ PP.parseSimpleIntegerLiteral(Tok, Value)) {
+ if (Value > 2) {
+ PP.Diag(Tok.getLocation(), diag::warn_pragma_expected_integer)
+ << 0 << 2 << "vtordisp";
+ return;
+ }
+ } else {
+ PP.Diag(Tok.getLocation(), diag::warn_pragma_invalid_action)
+ << "vtordisp";
+ return;
+ }
+ }
+
+ // Finish the pragma: ')' $
+ if (Tok.isNot(tok::r_paren)) {
+ PP.Diag(VtorDispLoc, diag::warn_pragma_expected_rparen) << "vtordisp";
+ return;
+ }
+ PP.Lex(Tok);
+ if (Tok.isNot(tok::eod)) {
+ PP.Diag(Tok.getLocation(), diag::warn_pragma_extra_tokens_at_eol)
+ << "vtordisp";
+ return;
+ }
+
+ // Enter the annotation.
+ Token AnnotTok;
+ AnnotTok.startToken();
+ AnnotTok.setKind(tok::annot_pragma_ms_vtordisp);
+ AnnotTok.setLocation(VtorDispLoc);
+ AnnotTok.setAnnotationValue(
+ reinterpret_cast<void *>(static_cast<uintptr_t>((Kind << 16) | Value)));
+ PP.EnterToken(AnnotTok);
+}
+
/// \brief Handle the Microsoft \#pragma detect_mismatch extension.
///
/// The syntax is:
Modified: cfe/trunk/lib/Parse/ParsePragma.h
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Parse/ParsePragma.h?rev=201274&r1=201273&r2=201274&view=diff
==============================================================================
--- cfe/trunk/lib/Parse/ParsePragma.h (original)
+++ cfe/trunk/lib/Parse/ParsePragma.h Wed Feb 12 17:50:26 2014
@@ -141,6 +141,13 @@ public:
Token &FirstToken);
};
+class PragmaMSVtorDisp : public PragmaHandler {
+public:
+ explicit PragmaMSVtorDisp() : PragmaHandler("vtordisp") {}
+ virtual void HandlePragma(Preprocessor &PP, PragmaIntroducerKind Introducer,
+ Token &FirstToken);
+};
+
} // end namespace clang
#endif
Modified: cfe/trunk/lib/Parse/Parser.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Parse/Parser.cpp?rev=201274&r1=201273&r2=201274&view=diff
==============================================================================
--- cfe/trunk/lib/Parse/Parser.cpp (original)
+++ cfe/trunk/lib/Parse/Parser.cpp Wed Feb 12 17:50:26 2014
@@ -110,6 +110,8 @@ Parser::Parser(Preprocessor &pp, Sema &a
PP.AddPragmaHandler(MSDetectMismatchHandler.get());
MSPointersToMembers.reset(new PragmaMSPointersToMembers());
PP.AddPragmaHandler(MSPointersToMembers.get());
+ MSVtorDisp.reset(new PragmaMSVtorDisp());
+ PP.AddPragmaHandler(MSVtorDisp.get());
}
CommentSemaHandler.reset(new ActionCommentHandler(actions));
@@ -487,6 +489,8 @@ Parser::~Parser() {
MSDetectMismatchHandler.reset();
PP.RemovePragmaHandler(MSPointersToMembers.get());
MSPointersToMembers.reset();
+ PP.RemovePragmaHandler(MSVtorDisp.get());
+ MSVtorDisp.reset();
}
PP.RemovePragmaHandler("STDC", FPContractHandler.get());
@@ -709,6 +713,9 @@ Parser::ParseExternalDeclaration(ParsedA
case tok::annot_pragma_ms_pointers_to_members:
HandlePragmaMSPointersToMembers();
return DeclGroupPtrTy();
+ case tok::annot_pragma_ms_vtordisp:
+ HandlePragmaMSVtorDisp();
+ return DeclGroupPtrTy();
case tok::semi:
// Either a C++11 empty-declaration or attribute-declaration.
SingleDecl = Actions.ActOnEmptyDeclaration(getCurScope(),
Modified: cfe/trunk/lib/Sema/Sema.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Sema/Sema.cpp?rev=201274&r1=201273&r2=201274&view=diff
==============================================================================
--- cfe/trunk/lib/Sema/Sema.cpp (original)
+++ cfe/trunk/lib/Sema/Sema.cpp Wed Feb 12 17:50:26 2014
@@ -77,7 +77,8 @@ Sema::Sema(Preprocessor &pp, ASTContext
CurContext(0), OriginalLexicalContext(0),
PackContext(0), MSStructPragmaOn(false),
MSPointerToMemberRepresentationMethod(
- pp.getLangOpts().getMSPointerToMemberRepresentationMethod()),
+ LangOpts.getMSPointerToMemberRepresentationMethod()),
+ VtorDispModeStack(1, MSVtorDispAttr::Mode(LangOpts.VtorDispMode)),
VisContext(0),
IsBuildingRecoveryCallExpr(false),
ExprNeedsCleanups(false), LateTemplateParser(0), OpaqueParser(0),
Modified: cfe/trunk/lib/Sema/SemaAttr.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Sema/SemaAttr.cpp?rev=201274&r1=201273&r2=201274&view=diff
==============================================================================
--- cfe/trunk/lib/Sema/SemaAttr.cpp (original)
+++ cfe/trunk/lib/Sema/SemaAttr.cpp Wed Feb 12 17:50:26 2014
@@ -130,9 +130,15 @@ void Sema::AddAlignmentAttributesForReco
}
void Sema::AddMsStructLayoutForRecord(RecordDecl *RD) {
- if (!MSStructPragmaOn)
- return;
- RD->addAttr(MsStructAttr::CreateImplicit(Context));
+ if (MSStructPragmaOn)
+ RD->addAttr(MsStructAttr::CreateImplicit(Context));
+
+ // FIXME: We should merge AddAlignmentAttributesForRecord with
+ // AddMsStructLayoutForRecord into AddPragmaAttributesForRecord, which takes
+ // all active pragmas and applies them as attributes to class definitions.
+ if (VtorDispModeStack.back() != getLangOpts().VtorDispMode)
+ RD->addAttr(
+ MSVtorDispAttr::CreateImplicit(Context, VtorDispModeStack.back()));
}
void Sema::ActOnPragmaOptionsAlign(PragmaOptionsAlignKind Kind,
@@ -246,8 +252,8 @@ void Sema::ActOnPragmaPack(PragmaPackKin
// If a name was specified then failure indicates the name
// wasn't found. Otherwise failure indicates the stack was
// empty.
- Diag(PragmaLoc, diag::warn_pragma_pack_pop_failed)
- << (Name ? "no record matching name" : "stack empty");
+ Diag(PragmaLoc, diag::warn_pragma_pop_failed)
+ << "pack" << (Name ? "no record matching name" : "stack empty");
// FIXME: Warn about popping named records as MSVC does.
} else {
@@ -294,6 +300,31 @@ void Sema::ActOnPragmaMSPointersToMember
ImplicitMSInheritanceAttrLoc = PragmaLoc;
}
+void Sema::ActOnPragmaMSVtorDisp(PragmaVtorDispKind Kind,
+ SourceLocation PragmaLoc,
+ MSVtorDispAttr::Mode Mode) {
+ switch (Kind) {
+ case PVDK_Set:
+ VtorDispModeStack.back() = Mode;
+ break;
+ case PVDK_Push:
+ VtorDispModeStack.push_back(Mode);
+ break;
+ case PVDK_Reset:
+ VtorDispModeStack.clear();
+ VtorDispModeStack.push_back(MSVtorDispAttr::Mode(LangOpts.VtorDispMode));
+ break;
+ case PVDK_Pop:
+ VtorDispModeStack.pop_back();
+ if (VtorDispModeStack.empty()) {
+ Diag(PragmaLoc, diag::warn_pragma_pop_failed) << "vtordisp"
+ << "stack empty";
+ VtorDispModeStack.push_back(MSVtorDispAttr::Mode(LangOpts.VtorDispMode));
+ }
+ break;
+ }
+}
+
void Sema::ActOnPragmaUnused(const Token &IdTok, Scope *curScope,
SourceLocation PragmaLoc) {
Modified: cfe/trunk/test/Layout/ms-x86-vtordisp.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/test/Layout/ms-x86-vtordisp.cpp?rev=201274&r1=201273&r2=201274&view=diff
==============================================================================
--- cfe/trunk/test/Layout/ms-x86-vtordisp.cpp (original)
+++ cfe/trunk/test/Layout/ms-x86-vtordisp.cpp Wed Feb 12 17:50:26 2014
@@ -1,4 +1,4 @@
-// RUN: %clang_cc1 -fno-rtti -emit-llvm-only -triple i686-pc-win32 -fdump-record-layouts -fsyntax-only %s 2>&1 \
+// RUN: %clang_cc1 -fno-rtti -fms-extensions -emit-llvm-only -triple i686-pc-win32 -fdump-record-layouts -fsyntax-only %s 2>&1 \
// RUN: | FileCheck %s
// RUN: %clang_cc1 -fno-rtti -emit-llvm-only -triple x86_64-pc-win32 -fdump-record-layouts -fsyntax-only %s 2>/dev/null \
// RUN: | FileCheck %s -check-prefix CHECK-X64
@@ -214,9 +214,125 @@ struct XC : virtual XB {
// CHECK-X64-NEXT: | [sizeof=40, align=8
// CHECK-X64-NEXT: | nvsize=8, nvalign=8]
+namespace pragma_test1 {
+// No overrides means no vtordisps by default.
+struct A { virtual ~A(); virtual void foo(); int a; };
+struct B : virtual A { virtual ~B(); virtual void bar(); int b; };
+struct C : virtual B { int c; };
+// CHECK: *** Dumping AST Record Layout
+// CHECK: *** Dumping AST Record Layout
+// CHECK: *** Dumping AST Record Layout
+// CHECK-NEXT: 0 | struct pragma_test1::C
+// CHECK-NEXT: 0 | (C vbtable pointer)
+// CHECK-NEXT: 4 | int c
+// CHECK-NEXT: 8 | struct pragma_test1::A (virtual base)
+// CHECK-NEXT: 8 | (A vftable pointer)
+// CHECK-NEXT: 12 | int a
+// CHECK-NEXT: 16 | struct pragma_test1::B (virtual base)
+// CHECK-NEXT: 16 | (B vftable pointer)
+// CHECK-NEXT: 20 | (B vbtable pointer)
+// CHECK-NEXT: 24 | int b
+// CHECK-NEXT: | [sizeof=28, align=4
+// CHECK-NEXT: | nvsize=8, nvalign=4]
+}
+
+namespace pragma_test2 {
+struct A { virtual ~A(); virtual void foo(); int a; };
+#pragma vtordisp(push,2)
+struct B : virtual A { virtual ~B(); virtual void bar(); int b; };
+struct C : virtual B { int c; };
+#pragma vtordisp(pop)
+// CHECK: *** Dumping AST Record Layout
+// CHECK: *** Dumping AST Record Layout
+// CHECK: *** Dumping AST Record Layout
+// CHECK-NEXT: 0 | struct pragma_test2::C
+// CHECK-NEXT: 0 | (C vbtable pointer)
+// CHECK-NEXT: 4 | int c
+// CHECK-NEXT: 8 | (vtordisp for vbase A)
+// CHECK-NEXT: 12 | struct pragma_test2::A (virtual base)
+// CHECK-NEXT: 12 | (A vftable pointer)
+// CHECK-NEXT: 16 | int a
+// By adding a virtual method and vftable to B, now we need a vtordisp.
+// CHECK-NEXT: 20 | (vtordisp for vbase B)
+// CHECK-NEXT: 24 | struct pragma_test2::B (virtual base)
+// CHECK-NEXT: 24 | (B vftable pointer)
+// CHECK-NEXT: 28 | (B vbtable pointer)
+// CHECK-NEXT: 32 | int b
+// CHECK-NEXT: | [sizeof=36, align=4
+// CHECK-NEXT: | nvsize=8, nvalign=4]
+}
+
+namespace pragma_test3 {
+struct A { virtual ~A(); virtual void foo(); int a; };
+#pragma vtordisp(push,2)
+struct B : virtual A { virtual ~B(); virtual void foo(); int b; };
+struct C : virtual B { int c; };
+#pragma vtordisp(pop)
+// CHECK: *** Dumping AST Record Layout
+// CHECK: *** Dumping AST Record Layout
+// CHECK: *** Dumping AST Record Layout
+// CHECK-NEXT: 0 | struct pragma_test3::C
+// CHECK-NEXT: 0 | (C vbtable pointer)
+// CHECK-NEXT: 4 | int c
+// CHECK-NEXT: 8 | (vtordisp for vbase A)
+// CHECK-NEXT: 12 | struct pragma_test3::A (virtual base)
+// CHECK-NEXT: 12 | (A vftable pointer)
+// CHECK-NEXT: 16 | int a
+// No vtordisp before B! It doesn't have its own vftable.
+// CHECK-NEXT: 20 | struct pragma_test3::B (virtual base)
+// CHECK-NEXT: 20 | (B vbtable pointer)
+// CHECK-NEXT: 24 | int b
+// CHECK-NEXT: | [sizeof=28, align=4
+// CHECK-NEXT: | nvsize=8, nvalign=4]
+}
+
+namespace pragma_test4 {
+struct A {
+ A();
+ virtual void foo();
+ int a;
+};
+
+// Make sure the pragma applies to class template decls before they've been
+// instantiated.
+#pragma vtordisp(push,2)
+template <typename T>
+struct B : virtual A {
+ B();
+ virtual ~B();
+ virtual void bar();
+ T b;
+};
+#pragma vtordisp(pop)
+
+struct C : virtual B<int> { int c; };
+// CHECK: *** Dumping AST Record Layout
+// CHECK: *** Dumping AST Record Layout
+// CHECK: *** Dumping AST Record Layout
+// CHECK-NEXT: 0 | struct pragma_test4::C
+// CHECK-NEXT: 0 | (C vbtable pointer)
+// CHECK-NEXT: 4 | int c
+// Pragma applies to B, which has vbase A.
+// CHECK-NEXT: 8 | (vtordisp for vbase A)
+// CHECK-NEXT: 12 | struct pragma_test4::A (virtual base)
+// CHECK-NEXT: 12 | (A vftable pointer)
+// CHECK-NEXT: 16 | int a
+// Pragma does not apply to C, and B doesn't usually need a vtordisp in C.
+// CHECK-NEXT: 20 | struct pragma_test4::B<int> (virtual base)
+// CHECK-NEXT: 20 | (B vftable pointer)
+// CHECK-NEXT: 24 | (B vbtable pointer)
+// CHECK-NEXT: 28 | int b
+// CHECK-NEXT: | [sizeof=32, align=4
+// CHECK-NEXT: | nvsize=8, nvalign=4]
+}
+
int a[
sizeof(A)+
sizeof(C)+
sizeof(D)+
sizeof(CT)+
-sizeof(XC)];
+sizeof(XC)+
+sizeof(pragma_test1::C)+
+sizeof(pragma_test2::C)+
+sizeof(pragma_test3::C)+
+sizeof(pragma_test4::C)];
Added: cfe/trunk/test/SemaCXX/pragma-vtordisp.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/test/SemaCXX/pragma-vtordisp.cpp?rev=201274&view=auto
==============================================================================
--- cfe/trunk/test/SemaCXX/pragma-vtordisp.cpp (added)
+++ cfe/trunk/test/SemaCXX/pragma-vtordisp.cpp Wed Feb 12 17:50:26 2014
@@ -0,0 +1,40 @@
+// RUN: %clang_cc1 -std=c++11 -fms-extensions -fms-compatibility -fsyntax-only -triple=i386-pc-win32 -verify %s
+
+struct A { int a; };
+
+#pragma vtordisp(pop) // expected-warning {{#pragma vtordisp(pop, ...) failed: stack empty}}
+#pragma vtordisp(push, 0)
+#pragma vtordisp(push, 1)
+#pragma vtordisp(push, 2)
+struct B : virtual A { int b; };
+#pragma vtordisp(pop)
+#pragma vtordisp(pop)
+#pragma vtordisp(pop)
+#pragma vtordisp(pop) // expected-warning {{#pragma vtordisp(pop, ...) failed: stack empty}}
+
+#pragma vtordisp(push, 3) // expected-warning {{expected integer between 0 and 2 inclusive in '#pragma vtordisp' - ignored}}
+#pragma vtordisp()
+
+#define ONE 1
+#pragma vtordisp(push, ONE)
+#define TWO 1
+#pragma vtordisp(push, TWO)
+
+// Test a reset.
+#pragma vtordisp()
+#pragma vtordisp(pop) // expected-warning {{#pragma vtordisp(pop, ...) failed: stack empty}}
+
+#pragma vtordisp( // expected-warning {{unknown action for '#pragma vtordisp' - ignored}}
+#pragma vtordisp(asdf) // expected-warning {{unknown action for '#pragma vtordisp' - ignored}}
+#pragma vtordisp(,) // expected-warning {{unknown action for '#pragma vtordisp' - ignored}}
+#pragma vtordisp // expected-warning {{missing '(' after '#pragma vtordisp' - ignoring}}
+#pragma vtordisp(3) // expected-warning {{expected integer between 0 and 2 inclusive in '#pragma vtordisp' - ignored}}
+#pragma vtordisp(), stuff // expected-warning {{extra tokens}}
+
+struct C {
+// FIXME: Our implementation based on token insertion makes it impossible for
+// the pragma to appear everywhere we should support it.
+//#pragma vtordisp()
+ struct D : virtual A {
+ };
+};
Added: cfe/trunk/test/SemaCXX/vtordisp-mode.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/test/SemaCXX/vtordisp-mode.cpp?rev=201274&view=auto
==============================================================================
--- cfe/trunk/test/SemaCXX/vtordisp-mode.cpp (added)
+++ cfe/trunk/test/SemaCXX/vtordisp-mode.cpp Wed Feb 12 17:50:26 2014
@@ -0,0 +1,26 @@
+// RUN: %clang_cc1 -triple i686-pc-win32 -std=c++11 -vtordisp-mode=0 -DVTORDISP_MODE=0 %s -verify
+// RUN: %clang_cc1 -triple i686-pc-win32 -std=c++11 -vtordisp-mode=1 -DVTORDISP_MODE=1 %s -verify
+// RUN: %clang_cc1 -triple i686-pc-win32 -std=c++11 -vtordisp-mode=2 -DVTORDISP_MODE=2 %s -verify
+
+// expected-no-diagnostics
+
+struct A {
+ A();
+ virtual void foo();
+};
+
+// At /vd1, there is a vtordisp before A.
+struct B : virtual A {
+ B();
+ virtual void foo();
+ virtual void bar();
+};
+
+// At /vd2, there is a vtordisp before B, but only because it has its own
+// vftable.
+struct C : virtual B {
+ C();
+};
+
+// There are two vfptrs, two vbptrs, and some number of vtordisps.
+static_assert(sizeof(C) == 2 * 4 + 2 * 4 + 4 * VTORDISP_MODE, "size mismatch");
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