r223803 - IR: Update clang for Metadata/Value split in r223802
Saleem Abdulrasool
compnerd at compnerd.org
Wed Dec 24 01:09:27 PST 2014
On Tue, Dec 23, 2014 at 5:38 PM, Saleem Abdulrasool <compnerd at compnerd.org>
wrote:
> I think I have a great reduction of this bug:
>
> %clang -target i686-linux-gnu -c %s -g -o /dev/null
>
> double _Complex f(void) {
> double _Complex c;
> return c;
> }
>
> It is somewhat flaky (okay pretty flaky), but, does reproduce the issue
> enough that you can bang r-enter until $debugger traps on the fault.
>
> The issue seems to be related to the emission of the debug loc in the
> epilogue, where it has an invalid sloc for the returned value. I've not
> done a full analysis of the issue, but throwing the reproduction out
> there in case someone more familiar with this code path can immediately see
> the issue.
>
> Thanks to David for the pointer to the thread!
>
http://reviews.llvm.org/D6775 seems to resolve the issue for me. The patch
itself is not ready to be committed, but, it should be in a reasonable
shape for testing.
> On Sunday, December 21, 2014, Yaron Keren <yaron.keren at gmail.com> wrote:
>
>> Ok, the last revision this example passes is r223801.
>>
>> r223802 (Metadata/Value split) until r223823 (including) don't compile
>> with Visual C++.
>> r223824 until r223857 (including) do compile but the example crashes, in
>> a different location than the LexicalBlockStack assert.
>> r223858 does not crash and fails the LexicalBlockStack assertion.
>>
>> so we first see the problem with r223858 but it may have been introduced
>> as early as r223802.
>>
>>
>> 2014-12-20 1:00 GMT+02:00 Yaron Keren <yaron.keren at gmail.com>:
>>
>> I suspect r223828 - DebugInfo: Accurate location information for complex
>> assignment‏, before it EmitStoreOfComplex was passing invalid
>> SourceLocation() into CGDebugInfo::EmitLocation which would return
>> immediately and the code path would not be exercised at all.
>>
>> It's also possible r223828 just exposed some other hidden bug.
>>
>> I won't have time for two builds to verify this today, if needed I'll
>> build first thing tommorrow.
>>
>>
>> 2014-12-20 0:36 GMT+02:00 David Blaikie <dblaikie at gmail.com>:
>>
>>
>>
>> On Fri, Dec 19, 2014 at 2:21 PM, Yaron Keren <yaron.keren at gmail.com>
>> wrote:
>>
>> I will look into creduce, looks like a very useful tool.
>>
>> The assert failing is not a clang assert but a Visual C++ header assert
>> (in debug mode only) checking empty std::vector every back() access to the
>> vector.
>> Maybe the libstdc++ std::vector runtime header does not have this assert
>> or it's not enabled?
>>
>> If I add an explicit assert for LexicalBlockStack:
>>
>> * assert(LexicalBlockStack.size());*
>> if (CurLoc == PrevLoc ||
>> SM.getExpansionLoc(CurLoc) == SM.getExpansionLoc(PrevLoc))
>> // New Builder may not be in sync with CGDebugInfo.
>> if (!Builder.getCurrentDebugLocation().isUnknown() &&
>> Builder.getCurrentDebugLocation().getScope(CGM.getLLVMContext())
>> ==
>> LexicalBlockStack.back())
>>
>> it gets triggered with toT r224610:
>>
>> Assertion failed: LexicalBlockStack.size(), file
>> ..\..\..\..\..\tools\clang\lib\CodeGen\CGDebugInfo.cpp, line 2648
>>
>> Could you try with this assert?
>>
>>
>> Yep, I can reproduce that, but don't know when it was introduced. Do you
>> have a revision range for when you started seeing this?
>>
>>
>>
>>
>> 2014-12-19 23:49 GMT+02:00 Yaron Keren <yaron.keren at gmail.com>:
>>
>> Thanks for checking so quickly, svn info shows r224610, I'll investigate
>> what's going on.
>>
>>
>> 2014-12-19 23:39 GMT+02:00 David Blaikie <dblaikie at gmail.com>:
>>
>>
>>
>> On Fri, Dec 19, 2014 at 1:18 PM, Yaron Keren <yaron.keren at gmail.com>
>> wrote:
>>
>> Hi,
>>
>> I have filed a C++ example triggering this.
>>
>>
>> Is this triggering on ToT clang? My patch (not this one from Duncan)
>> r224385 was reverted in r224441.
>>
>>
>> It's using boost... the source code is not long after preprocessed is
>> almost 25MB.
>>
>>
>> Just for future reference - the unpreprocessed source code length isn't
>> usually terribly important (so if you can't reduce the preprocessed source,
>> it's probably not too important to spend time reducing the unpreprocessed
>> source - you'll only be removing maybe a few hundred lines, out of the many
>> thousands that need to be reduced). Tools like creduce can help reduce the
>> preprocessed source without so much manual effort.
>>
>> In any case, I can't seem to reproduce the assertion failure from your
>> preprocessed file, nor from Francois example... (even with my patch
>> reapplied)...
>>
>> - David
>>
>>
>>
>> http://llvm.org/PR21987
>>
>> Yaron
>>
>>
>> 2014-12-17 22:21 GMT+02:00 David Blaikie <dblaikie at gmail.com>:
>>
>> Yeah, still sounds likely that that was my change, not this one.
>>
>> On Wed, Dec 17, 2014 at 12:19 PM, Duncan P. N. Exon Smith <
>> dexonsmith at apple.com> wrote:
>>
>> So r223803 (and r223802) should have been effectively NFC (at least once
>> the follow-up bugfixes were applied).
>>
>> I didn't change the logic around LexicalBlockStack -- just changed some
>> `push_back`s to `emplace_back`s because I changed the type being held in
>> it -- and I honestly don't know how it's supposed to work. (And I don't
>> know anything about ABIs.)
>>
>> If I'm going to help you debug this, I'll need some more guidance.
>> Ideally, you'd give me a patch and a reproduction to expose the problem
>> on ToT. (Or maybe David has some ideas?)
>>
>> (BTW, have you done a bisection? Are you sure this is the problematic
>> commit?)
>>
>> > On 2014-Dec-17, at 08:43, Francois Pichet <pichet2000 at gmail.com> wrote:
>> >
>> > Hi, the assert will occur for a target that use DefaultABIInfo where
>> Complex types are returned via the ABIArgInfo::Indirect mechanism. This is
>> the case for my out of tree target.
>> >
>> > EmitFunctionEnd will make LexicalBlockStack empty.
>> > EmitStoreOfComplex called from EmitFunctionEpilog will eventually
>> assume a non empty LexicalBlockStack.
>> >
>> > On Tue, Dec 16, 2014 at 6:15 PM, Duncan P. N. Exon Smith <
>> dexonsmith at apple.com> wrote:
>> > It's not reproducing for me:
>> >
>> > clang -g test.c
>> > test.c:3:8: warning: implicitly declaring library function 'casin' with
>> type '_Complex double
>> > (_Complex double)'
>> > z = casin(z);
>> > ^
>> > test.c:3:8: note: include the header <complex.h> or explicitly provide
>> a declaration for 'casin'
>> > 1 warning generated.
>> > Undefined symbols for architecture x86_64:
>> > "_main", referenced from:
>> > implicit entry/start for main executable
>> > ld: symbol(s) not found for architecture x86_64
>> > clang-3.6: error: linker command failed with exit code 1 (use -v to see
>> invocation)
>> > lrun: error: failed:
>> /Users/dexonsmith/data/llvm.debug/debug-info/bin/clang -g test.c
>> >
>> > If you can reproduce this ToT, please file a PR with preprocessed
>> source and
>> > the -cc1 command (usually the driver will produce these files for you)
>> and
>> > CC me.
>> >
>> > > On 2014 Dec 16, at 12:24, Francois Pichet <pichet2000 at gmail.com>
>> wrote:
>> > >
>> > > Hi, I re-synced a private repo of clang/llvm lately and I am getting
>> an assert when compiling musl-libc with clang in debug mode, I suspect this
>> commit. Basically LexicalBlockStack is empty when CGDebugInfo::EmitLocation
>> is called.
>> > >
>> > > clang -g test.c
>> > >
>> > > here is the test.c: http://pastebin.com/zXyAknCf
>> > >
>> > > Thanks,
>> > >
>> > > On Tue, Dec 9, 2014 at 1:39 PM, Duncan P. N. Exon Smith <
>> dexonsmith at apple.com> wrote:
>> > > Author: dexonsmith
>> > > Date: Tue Dec 9 12:39:32 2014
>> > > New Revision: 223803
>> > >
>> > > URL: http://llvm.org/viewvc/llvm-project?rev=223803&view=rev
>> > > Log:
>> > > IR: Update clang for Metadata/Value split in r223802
>> > >
>> > > Match LLVM API changes from r223802.
>> > >
>> > > Modified:
>> > > cfe/trunk/lib/CodeGen/CGBuiltin.cpp
>> > > cfe/trunk/lib/CodeGen/CGDebugInfo.cpp
>> > > cfe/trunk/lib/CodeGen/CGDebugInfo.h
>> > > cfe/trunk/lib/CodeGen/CGExpr.cpp
>> > > cfe/trunk/lib/CodeGen/CGLoopInfo.cpp
>> > > cfe/trunk/lib/CodeGen/CGObjC.cpp
>> > > cfe/trunk/lib/CodeGen/CGObjCGNU.cpp
>> > > cfe/trunk/lib/CodeGen/CGObjCMac.cpp
>> > > cfe/trunk/lib/CodeGen/CGStmt.cpp
>> > > cfe/trunk/lib/CodeGen/CodeGenFunction.cpp
>> > > cfe/trunk/lib/CodeGen/CodeGenModule.cpp
>> > > cfe/trunk/lib/CodeGen/CodeGenModule.h
>> > > cfe/trunk/lib/CodeGen/SanitizerMetadata.cpp
>> > > cfe/trunk/lib/CodeGen/TargetInfo.cpp
>> > >
>> > > Modified: cfe/trunk/lib/CodeGen/CGBuiltin.cpp
>> > > URL:
>> http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/CodeGen/CGBuiltin.cpp?rev=223803&r1=223802&r2=223803&view=diff
>> > >
>> ==============================================================================
>> > > --- cfe/trunk/lib/CodeGen/CGBuiltin.cpp (original)
>> > > +++ cfe/trunk/lib/CodeGen/CGBuiltin.cpp Tue Dec 9 12:39:32 2014
>> > > @@ -5932,8 +5932,8 @@ Value *CodeGenFunction::EmitX86BuiltinEx
>> > > case X86::BI__builtin_ia32_movntdq256:
>> > > case X86::BI__builtin_ia32_movnti:
>> > > case X86::BI__builtin_ia32_movnti64: {
>> > > - llvm::MDNode *Node = llvm::MDNode::get(getLLVMContext(),
>> > > - Builder.getInt32(1));
>> > > + llvm::MDNode *Node = llvm::MDNode::get(
>> > > + getLLVMContext(),
>> llvm::ConstantAsMetadata::get(Builder.getInt32(1)));
>> > >
>> > > // Convert the type of the pointer to a pointer to the stored
>> type.
>> > > Value *BC = Builder.CreateBitCast(Ops[0],
>> > >
>> > > Modified: cfe/trunk/lib/CodeGen/CGDebugInfo.cpp
>> > > URL:
>> http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/CodeGen/CGDebugInfo.cpp?rev=223803&r1=223802&r2=223803&view=diff
>> > >
>> ==============================================================================
>> > > --- cfe/trunk/lib/CodeGen/CGDebugInfo.cpp (original)
>> > > +++ cfe/trunk/lib/CodeGen/CGDebugInfo.cpp Tue Dec 9 12:39:32 2014
>> > > @@ -126,13 +126,13 @@ void CGDebugInfo::setLocation(SourceLoca
>> > > LBF.getScope(), getOrCreateFile(CurLoc));
>> > > llvm::MDNode *N = D;
>> > > LexicalBlockStack.pop_back();
>> > > - LexicalBlockStack.push_back(N);
>> > > + LexicalBlockStack.emplace_back(N);
>> > > } else if (Scope.isLexicalBlock() || Scope.isSubprogram()) {
>> > > llvm::DIDescriptor D =
>> > > DBuilder.createLexicalBlockFile(Scope,
>> getOrCreateFile(CurLoc));
>> > > llvm::MDNode *N = D;
>> > > LexicalBlockStack.pop_back();
>> > > - LexicalBlockStack.push_back(N);
>> > > + LexicalBlockStack.emplace_back(N);
>> > > }
>> > > }
>> > >
>> > > @@ -141,10 +141,9 @@ llvm::DIScope CGDebugInfo::getContextDes
>> > > if (!Context)
>> > > return TheCU;
>> > >
>> > > - llvm::DenseMap<const Decl *, llvm::WeakVH>::iterator I =
>> > > - RegionMap.find(Context);
>> > > + auto I = RegionMap.find(Context);
>> > > if (I != RegionMap.end()) {
>> > > - llvm::Value *V = I->second;
>> > > + llvm::Metadata *V = I->second;
>> > > return llvm::DIScope(dyn_cast_or_null<llvm::MDNode>(V));
>> > > }
>> > >
>> > > @@ -256,18 +255,17 @@ llvm::DIFile CGDebugInfo::getOrCreateFil
>> > >
>> > > // Cache the results.
>> > > const char *fname = PLoc.getFilename();
>> > > - llvm::DenseMap<const char *, llvm::WeakVH>::iterator it =
>> > > - DIFileCache.find(fname);
>> > > + auto it = DIFileCache.find(fname);
>> > >
>> > > if (it != DIFileCache.end()) {
>> > > // Verify that the information still exists.
>> > > - if (llvm::Value *V = it->second)
>> > > + if (llvm::Metadata *V = it->second)
>> > > return llvm::DIFile(cast<llvm::MDNode>(V));
>> > > }
>> > >
>> > > llvm::DIFile F = DBuilder.createFile(PLoc.getFilename(),
>> getCurrentDirname());
>> > >
>> > > - DIFileCache[fname] = F;
>> > > + DIFileCache[fname].reset(F);
>> > > return F;
>> > > }
>> > >
>> > > @@ -641,7 +639,9 @@ CGDebugInfo::getOrCreateRecordFwdDecl(co
>> > > SmallString<256> FullName = getUniqueTagTypeName(Ty, CGM, TheCU);
>> > > llvm::DICompositeType RetTy =
>> DBuilder.createReplaceableForwardDecl(
>> > > Tag, RDName, Ctx, DefUnit, Line, 0, 0, 0, FullName);
>> > > - ReplaceMap.push_back(std::make_pair(Ty, static_cast<llvm::Value
>> *>(RetTy)));
>> > > + ReplaceMap.emplace_back(
>> > > + std::piecewise_construct, std::make_tuple(Ty),
>> > > + std::make_tuple(static_cast<llvm::Metadata *>(RetTy)));
>> > > return RetTy;
>> > > }
>> > >
>> > > @@ -680,7 +680,7 @@ llvm::DIType CGDebugInfo::CreateType(con
>> > > if (BlockLiteralGeneric)
>> > > return BlockLiteralGeneric;
>> > >
>> > > - SmallVector<llvm::Value *, 8> EltTys;
>> > > + SmallVector<llvm::Metadata *, 8> EltTys;
>> > > llvm::DIType FieldTy;
>> > > QualType FType;
>> > > uint64_t FieldSize, FieldOffset;
>> > > @@ -784,7 +784,7 @@ llvm::DIType CGDebugInfo::CreateType(con
>> > >
>> > > llvm::DIType CGDebugInfo::CreateType(const FunctionType *Ty,
>> > > llvm::DIFile Unit) {
>> > > - SmallVector<llvm::Value *, 16> EltTys;
>> > > + SmallVector<llvm::Metadata *, 16> EltTys;
>> > >
>> > > // Add the result type at least.
>> > > EltTys.push_back(getOrCreateType(Ty->getReturnType(), Unit));
>> > > @@ -857,10 +857,9 @@ llvm::DIType CGDebugInfo::createFieldTyp
>> > > }
>> > >
>> > > /// CollectRecordLambdaFields - Helper for CollectRecordFields.
>> > > -void
>> > > -CGDebugInfo::CollectRecordLambdaFields(const CXXRecordDecl *CXXDecl,
>> > > - SmallVectorImpl<llvm::Value
>> *> &elements,
>> > > - llvm::DIType RecordTy) {
>> > > +void CGDebugInfo::CollectRecordLambdaFields(
>> > > + const CXXRecordDecl *CXXDecl, SmallVectorImpl<llvm::Metadata *>
>> &elements,
>> > > + llvm::DIType RecordTy) {
>> > > // For C++11 Lambdas a Field will be the same as a Capture, but
>> the Capture
>> > > // has the name and the location of the variable so we should
>> iterate over
>> > > // both concurrently.
>> > > @@ -928,14 +927,14 @@ llvm::DIDerivedType CGDebugInfo::CreateR
>> > > unsigned Flags = getAccessFlag(Var->getAccess(), RD);
>> > > llvm::DIDerivedType GV = DBuilder.createStaticMemberType(
>> > > RecordTy, VName, VUnit, LineNumber, VTy, Flags, C);
>> > > - StaticDataMemberCache[Var->getCanonicalDecl()] = llvm::WeakVH(GV);
>> > > + StaticDataMemberCache[Var->getCanonicalDecl()].reset(GV);
>> > > return GV;
>> > > }
>> > >
>> > > /// CollectRecordNormalField - Helper for CollectRecordFields.
>> > > void CGDebugInfo::CollectRecordNormalField(
>> > > const FieldDecl *field, uint64_t OffsetInBits, llvm::DIFile
>> tunit,
>> > > - SmallVectorImpl<llvm::Value *> &elements, llvm::DIType RecordTy,
>> > > + SmallVectorImpl<llvm::Metadata *> &elements, llvm::DIType
>> RecordTy,
>> > > const RecordDecl *RD) {
>> > > StringRef name = field->getName();
>> > > QualType type = field->getType();
>> > > @@ -959,10 +958,10 @@ void CGDebugInfo::CollectRecordNormalFie
>> > >
>> > > /// CollectRecordFields - A helper function to collect debug info for
>> > > /// record fields. This is used while creating debug info entry for
>> a Record.
>> > > -void CGDebugInfo::CollectRecordFields(const RecordDecl *record,
>> > > - llvm::DIFile tunit,
>> > > - SmallVectorImpl<llvm::Value *>
>> &elements,
>> > > - llvm::DICompositeType
>> RecordTy) {
>> > > +void CGDebugInfo::CollectRecordFields(
>> > > + const RecordDecl *record, llvm::DIFile tunit,
>> > > + SmallVectorImpl<llvm::Metadata *> &elements,
>> > > + llvm::DICompositeType RecordTy) {
>> > > const CXXRecordDecl *CXXDecl = dyn_cast<CXXRecordDecl>(record);
>> > >
>> > > if (CXXDecl && CXXDecl->isLambda())
>> > > @@ -978,8 +977,7 @@ void CGDebugInfo::CollectRecordFields(co
>> > > for (const auto *I : record->decls())
>> > > if (const auto *V = dyn_cast<VarDecl>(I)) {
>> > > // Reuse the existing static member declaration if one exists
>> > > - llvm::DenseMap<const Decl *, llvm::WeakVH>::iterator MI =
>> > > - StaticDataMemberCache.find(V->getCanonicalDecl());
>> > > + auto MI = StaticDataMemberCache.find(V->getCanonicalDecl());
>> > > if (MI != StaticDataMemberCache.end()) {
>> > > assert(MI->second &&
>> > > "Static data member declaration should still
>> exist");
>> > > @@ -1019,7 +1017,7 @@ llvm::DICompositeType CGDebugInfo::getOr
>> > > getOrCreateType(QualType(Func, 0), Unit)).getTypeArray();
>> > > assert(Args.getNumElements() && "Invalid number of arguments!");
>> > >
>> > > - SmallVector<llvm::Value *, 16> Elts;
>> > > + SmallVector<llvm::Metadata *, 16> Elts;
>> > >
>> > > // First element is always return type. For 'void' functions it is
>> NULL.
>> > > Elts.push_back(Args.getElement(0));
>> > > @@ -1036,7 +1034,7 @@ llvm::DICompositeType CGDebugInfo::getOr
>> > > llvm::DIType PointeeType = getOrCreateType(PointeeTy, Unit);
>> > > llvm::DIType ThisPtrType =
>> > > DBuilder.createPointerType(PointeeType, Size, Align);
>> > > - TypeCache[ThisPtr.getAsOpaquePtr()] = ThisPtrType;
>> > > + TypeCache[ThisPtr.getAsOpaquePtr()].reset(ThisPtrType);
>> > > // TODO: This and the artificial type below are misleading, the
>> > > // types aren't artificial the argument is, but the current
>> > > // metadata doesn't represent that.
>> > > @@ -1044,7 +1042,7 @@ llvm::DICompositeType CGDebugInfo::getOr
>> > > Elts.push_back(ThisPtrType);
>> > > } else {
>> > > llvm::DIType ThisPtrType = getOrCreateType(ThisPtr, Unit);
>> > > - TypeCache[ThisPtr.getAsOpaquePtr()] = ThisPtrType;
>> > > + TypeCache[ThisPtr.getAsOpaquePtr()].reset(ThisPtrType);
>> > > ThisPtrType = DBuilder.createObjectPointerType(ThisPtrType);
>> > > Elts.push_back(ThisPtrType);
>> > > }
>> > > @@ -1147,7 +1145,7 @@ CGDebugInfo::CreateCXXMemberFunction(con
>> > > /* isDefinition=*/false, Virtuality, VIndex, ContainingType,
>> Flags,
>> > > CGM.getLangOpts().Optimize, nullptr, TParamsArray);
>> > >
>> > > - SPCache[Method->getCanonicalDecl()] = llvm::WeakVH(SP);
>> > > + SPCache[Method->getCanonicalDecl()].reset(SP);
>> > >
>> > > return SP;
>> > > }
>> > > @@ -1157,7 +1155,7 @@ CGDebugInfo::CreateCXXMemberFunction(con
>> > > /// a Record.
>> > > void CGDebugInfo::CollectCXXMemberFunctions(
>> > > const CXXRecordDecl *RD, llvm::DIFile Unit,
>> > > - SmallVectorImpl<llvm::Value *> &EltTys, llvm::DIType RecordTy) {
>> > > + SmallVectorImpl<llvm::Metadata *> &EltTys, llvm::DIType
>> RecordTy) {
>> > >
>> > > // Since we want more than just the individual member decls if we
>> > > // have templated functions iterate over every declaration to
>> gather
>> > > @@ -1188,7 +1186,7 @@ void CGDebugInfo::CollectCXXMemberFuncti
>> > > auto MI = SPCache.find(Method->getCanonicalDecl());
>> > > EltTys.push_back(MI == SPCache.end()
>> > > ? CreateCXXMemberFunction(Method, Unit,
>> RecordTy)
>> > > - : static_cast<llvm::Value *>(MI->second));
>> > > + : static_cast<llvm::Metadata
>> *>(MI->second));
>> > > }
>> > > }
>> > >
>> > > @@ -1196,7 +1194,7 @@ void CGDebugInfo::CollectCXXMemberFuncti
>> > > /// C++ base classes. This is used while creating debug info entry
>> for
>> > > /// a Record.
>> > > void CGDebugInfo::CollectCXXBases(const CXXRecordDecl *RD,
>> llvm::DIFile Unit,
>> > > - SmallVectorImpl<llvm::Value *>
>> &EltTys,
>> > > + SmallVectorImpl<llvm::Metadata *>
>> &EltTys,
>> > > llvm::DIType RecordTy) {
>> > >
>> > > const ASTRecordLayout &RL =
>> CGM.getContext().getASTRecordLayout(RD);
>> > > @@ -1238,7 +1236,7 @@ llvm::DIArray
>> > > CGDebugInfo::CollectTemplateParams(const TemplateParameterList
>> *TPList,
>> > > ArrayRef<TemplateArgument> TAList,
>> > > llvm::DIFile Unit) {
>> > > - SmallVector<llvm::Value *, 16> TemplateParams;
>> > > + SmallVector<llvm::Metadata *, 16> TemplateParams;
>> > > for (unsigned i = 0, e = TAList.size(); i != e; ++i) {
>> > > const TemplateArgument &TA = TAList[i];
>> > > StringRef Name;
>> > > @@ -1263,7 +1261,7 @@ CGDebugInfo::CollectTemplateParams(const
>> > > const ValueDecl *D = TA.getAsDecl();
>> > > QualType T =
>> TA.getParamTypeForDecl().getDesugaredType(CGM.getContext());
>> > > llvm::DIType TTy = getOrCreateType(T, Unit);
>> > > - llvm::Value *V = nullptr;
>> > > + llvm::Constant *V = nullptr;
>> > > const CXXMethodDecl *MD;
>> > > // Variable pointer template parameters have a value that is
>> the address
>> > > // of the variable.
>> > > @@ -1295,7 +1293,7 @@ CGDebugInfo::CollectTemplateParams(const
>> > > case TemplateArgument::NullPtr: {
>> > > QualType T = TA.getNullPtrType();
>> > > llvm::DIType TTy = getOrCreateType(T, Unit);
>> > > - llvm::Value *V = nullptr;
>> > > + llvm::Constant *V = nullptr;
>> > > // Special case member data pointer null values since they're
>> actually -1
>> > > // instead of zero.
>> > > if (const MemberPointerType *MPT =
>> > > @@ -1332,7 +1330,7 @@ CGDebugInfo::CollectTemplateParams(const
>> > > QualType T = E->getType();
>> > > if (E->isGLValue())
>> > > T = CGM.getContext().getLValueReferenceType(T);
>> > > - llvm::Value *V = CGM.EmitConstantExpr(E, T);
>> > > + llvm::Constant *V = CGM.EmitConstantExpr(E, T);
>> > > assert(V && "Expression in template argument isn't constant");
>> > > llvm::DIType TTy = getOrCreateType(T, Unit);
>> > > llvm::DITemplateValueParameter TVP =
>> > > @@ -1385,7 +1383,7 @@ llvm::DIType CGDebugInfo::getOrCreateVTa
>> > > ASTContext &Context = CGM.getContext();
>> > >
>> > > /* Function type */
>> > > - llvm::Value *STy = getOrCreateType(Context.IntTy, Unit);
>> > > + llvm::Metadata *STy = getOrCreateType(Context.IntTy, Unit);
>> > > llvm::DITypeArray SElements = DBuilder.getOrCreateTypeArray(STy);
>> > > llvm::DIType SubTy = DBuilder.createSubroutineType(Unit,
>> SElements);
>> > > unsigned Size = Context.getTypeSize(Context.VoidPtrTy);
>> > > @@ -1404,7 +1402,7 @@ StringRef CGDebugInfo::getVTableName(con
>> > > /// CollectVTableInfo - If the C++ class has vtable info then insert
>> appropriate
>> > > /// debug info entry in EltTys vector.
>> > > void CGDebugInfo::CollectVTableInfo(const CXXRecordDecl *RD,
>> llvm::DIFile Unit,
>> > > - SmallVectorImpl<llvm::Value *>
>> &EltTys) {
>> > > + SmallVectorImpl<llvm::Metadata
>> *> &EltTys) {
>> > > const ASTRecordLayout &RL =
>> CGM.getContext().getASTRecordLayout(RD);
>> > >
>> > > // If there is a primary base then it will hold vtable info.
>> > > @@ -1447,12 +1445,11 @@ void CGDebugInfo::completeType(const Enu
>> > > void *TyPtr = Ty.getAsOpaquePtr();
>> > > auto I = TypeCache.find(TyPtr);
>> > > if (I == TypeCache.end() ||
>> > > - !llvm::DIType(cast<llvm::MDNode>(static_cast<llvm::Value
>> *>(I->second)))
>> > > - .isForwardDecl())
>> > > + !llvm::DIType(cast<llvm::MDNode>(I->second)).isForwardDecl())
>> > > return;
>> > > llvm::DIType Res = CreateTypeDefinition(Ty->castAs<EnumType>());
>> > > assert(!Res.isForwardDecl());
>> > > - TypeCache[TyPtr] = Res;
>> > > + TypeCache[TyPtr].reset(Res);
>> > > }
>> > >
>> > > void CGDebugInfo::completeType(const RecordDecl *RD) {
>> > > @@ -1482,12 +1479,11 @@ void CGDebugInfo::completeClassData(cons
>> > > void *TyPtr = Ty.getAsOpaquePtr();
>> > > auto I = TypeCache.find(TyPtr);
>> > > if (I != TypeCache.end() &&
>> > > - !llvm::DIType(cast<llvm::MDNode>(static_cast<llvm::Value
>> *>(I->second)))
>> > > - .isForwardDecl())
>> > > + !llvm::DIType(cast<llvm::MDNode>(I->second)).isForwardDecl())
>> > > return;
>> > > llvm::DIType Res = CreateTypeDefinition(Ty->castAs<RecordType>());
>> > > assert(!Res.isForwardDecl());
>> > > - TypeCache[TyPtr] = Res;
>> > > + TypeCache[TyPtr].reset(Res);
>> > > }
>> > >
>> > > static bool
>> hasExplicitMemberDefinition(CXXRecordDecl::method_iterator I,
>> > > @@ -1571,11 +1567,11 @@ llvm::DIType CGDebugInfo::CreateTypeDefi
>> > > CollectContainingType(CXXDecl, FwdDecl);
>> > >
>> > > // Push the struct on region stack.
>> > > - LexicalBlockStack.push_back(&*FwdDecl);
>> > > - RegionMap[Ty->getDecl()] = llvm::WeakVH(FwdDecl);
>> > > + LexicalBlockStack.emplace_back(&*FwdDecl);
>> > > + RegionMap[Ty->getDecl()].reset(FwdDecl);
>> > >
>> > > // Convert all the elements.
>> > > - SmallVector<llvm::Value *, 16> EltTys;
>> > > + SmallVector<llvm::Metadata *, 16> EltTys;
>> > > // what about nested types?
>> > >
>> > > // Note: The split of CXXDecl information here is intentional, the
>> > > @@ -1599,7 +1595,7 @@ llvm::DIType CGDebugInfo::CreateTypeDefi
>> > > llvm::DIArray Elements = DBuilder.getOrCreateArray(EltTys);
>> > > FwdDecl.setArrays(Elements);
>> > >
>> > > - RegionMap[Ty->getDecl()] = llvm::WeakVH(FwdDecl);
>> > > + RegionMap[Ty->getDecl()].reset(FwdDecl);
>> > > return FwdDecl;
>> > > }
>> > >
>> > > @@ -1680,14 +1676,14 @@ llvm::DIType CGDebugInfo::CreateTypeDefi
>> > > llvm::DIArray(), RuntimeLang);
>> > >
>> > > QualType QTy(Ty, 0);
>> > > - TypeCache[QTy.getAsOpaquePtr()] = RealDecl;
>> > > + TypeCache[QTy.getAsOpaquePtr()].reset(RealDecl);
>> > >
>> > > // Push the struct on region stack.
>> > > - LexicalBlockStack.push_back(static_cast<llvm::MDNode *>(RealDecl));
>> > > - RegionMap[Ty->getDecl()] = llvm::WeakVH(RealDecl);
>> > > + LexicalBlockStack.emplace_back(static_cast<llvm::MDNode
>> *>(RealDecl));
>> > > + RegionMap[Ty->getDecl()].reset(RealDecl);
>> > >
>> > > // Convert all the elements.
>> > > - SmallVector<llvm::Value *, 16> EltTys;
>> > > + SmallVector<llvm::Metadata *, 16> EltTys;
>> > >
>> > > ObjCInterfaceDecl *SClass = ID->getSuperClass();
>> > > if (SClass) {
>> > > @@ -1813,7 +1809,7 @@ llvm::DIType CGDebugInfo::CreateType(con
>> > > // Use Count == -1 to express such arrays.
>> > > Count = -1;
>> > >
>> > > - llvm::Value *Subscript = DBuilder.getOrCreateSubrange(0, Count);
>> > > + llvm::Metadata *Subscript = DBuilder.getOrCreateSubrange(0, Count);
>> > > llvm::DIArray SubscriptArray =
>> DBuilder.getOrCreateArray(Subscript);
>> > >
>> > > uint64_t Size = CGM.getContext().getTypeSize(Ty);
>> > > @@ -1849,7 +1845,7 @@ llvm::DIType CGDebugInfo::CreateType(con
>> > > // Add the dimensions of the array. FIXME: This loses CV
>> qualifiers from
>> > > // interior arrays, do we care? Why aren't nested arrays
>> represented the
>> > > // obvious/recursive way?
>> > > - SmallVector<llvm::Value *, 8> Subscripts;
>> > > + SmallVector<llvm::Metadata *, 8> Subscripts;
>> > > QualType EltTy(Ty, 0);
>> > > while ((Ty = dyn_cast<ArrayType>(EltTy))) {
>> > > // If the number of elements is known, then count is that
>> number. Otherwise,
>> > > @@ -1932,7 +1928,9 @@ llvm::DIType CGDebugInfo::CreateEnumType
>> > > llvm::DIType RetTy = DBuilder.createReplaceableForwardDecl(
>> > > llvm::dwarf::DW_TAG_enumeration_type, EDName, EDContext,
>> DefUnit, Line,
>> > > 0, Size, Align, FullName);
>> > > - ReplaceMap.push_back(std::make_pair(Ty, static_cast<llvm::Value
>> *>(RetTy)));
>> > > + ReplaceMap.emplace_back(
>> > > + std::piecewise_construct, std::make_tuple(Ty),
>> > > + std::make_tuple(static_cast<llvm::Metadata *>(RetTy)));
>> > > return RetTy;
>> > > }
>> > >
>> > > @@ -1951,7 +1949,7 @@ llvm::DIType CGDebugInfo::CreateTypeDefi
>> > > SmallString<256> FullName = getUniqueTagTypeName(Ty, CGM, TheCU);
>> > >
>> > > // Create DIEnumerator elements for each enumerator.
>> > > - SmallVector<llvm::Value *, 16> Enumerators;
>> > > + SmallVector<llvm::Metadata *, 16> Enumerators;
>> > > ED = ED->getDefinition();
>> > > for (const auto *Enum : ED->enumerators()) {
>> > > Enumerators.push_back(DBuilder.createEnumerator(
>> > > @@ -2039,7 +2037,7 @@ llvm::DIType CGDebugInfo::getTypeOrNull(
>> > > auto it = TypeCache.find(Ty.getAsOpaquePtr());
>> > > if (it != TypeCache.end()) {
>> > > // Verify that the debug info still exists.
>> > > - if (llvm::Value *V = it->second)
>> > > + if (llvm::Metadata *V = it->second)
>> > > return llvm::DIType(cast<llvm::MDNode>(V));
>> > > }
>> > >
>> > > @@ -2074,7 +2072,7 @@ llvm::DIType CGDebugInfo::getOrCreateTyp
>> > > void *TyPtr = Ty.getAsOpaquePtr();
>> > >
>> > > // And update the type cache.
>> > > - TypeCache[TyPtr] = Res;
>> > > + TypeCache[TyPtr].reset(Res);
>> > >
>> > > return Res;
>> > > }
>> > > @@ -2209,7 +2207,7 @@ llvm::DIType CGDebugInfo::getOrCreateLim
>> > > Res.setArrays(T.getElements());
>> > >
>> > > // And update the type cache.
>> > > - TypeCache[QTy.getAsOpaquePtr()] = Res;
>> > > + TypeCache[QTy.getAsOpaquePtr()].reset(Res);
>> > > return Res;
>> > > }
>> > >
>> > > @@ -2257,8 +2255,8 @@ llvm::DICompositeType CGDebugInfo::Creat
>> > > RDContext, RDName, DefUnit, Line, Size, Align, 0,
>> llvm::DIType(),
>> > > llvm::DIArray(), 0, llvm::DIType(), FullName);
>> > >
>> > > - RegionMap[Ty->getDecl()] = llvm::WeakVH(RealDecl);
>> > > - TypeCache[QualType(Ty, 0).getAsOpaquePtr()] = RealDecl;
>> > > + RegionMap[Ty->getDecl()].reset(RealDecl);
>> > > + TypeCache[QualType(Ty, 0).getAsOpaquePtr()].reset(RealDecl);
>> > >
>> > > if (const ClassTemplateSpecializationDecl *TSpecial =
>> > > dyn_cast<ClassTemplateSpecializationDecl>(RD))
>> > > @@ -2401,8 +2399,9 @@ CGDebugInfo::getFunctionForwardDeclarati
>> > > CGM.getLangOpts().Optimize,
>> nullptr,
>> > > TParamsArray,
>> getFunctionDeclaration(FD));
>> > > const FunctionDecl *CanonDecl =
>> cast<FunctionDecl>(FD->getCanonicalDecl());
>> > > - FwdDeclReplaceMap.push_back(std::make_pair(CanonDecl,
>> > > - static_cast<llvm::Value
>> *>(SP)));
>> > > + FwdDeclReplaceMap.emplace_back(
>> > > + std::piecewise_construct, std::make_tuple(CanonDecl),
>> > > + std::make_tuple(static_cast<llvm::Metadata *>(SP)));
>> > > return SP;
>> > > }
>> > >
>> > > @@ -2421,8 +2420,10 @@ CGDebugInfo::getGlobalVariableForwardDec
>> > > Line,
>> getOrCreateType(T, Unit),
>> > >
>> !VD->isExternallyVisible(),
>> > > nullptr, nullptr);
>> > > -
>> FwdDeclReplaceMap.push_back(std::make_pair(cast<VarDecl>(VD->getCanonicalDecl()),
>> > > - static_cast<llvm::Value
>> *>(GV)));
>> > > + FwdDeclReplaceMap.emplace_back(
>> > > + std::piecewise_construct,
>> > > + std::make_tuple(cast<VarDecl>(VD->getCanonicalDecl())),
>> > > + std::make_tuple(static_cast<llvm::Metadata *>(GV)));
>> > > return GV;
>> > > }
>> > >
>> > > @@ -2434,13 +2435,10 @@ llvm::DIDescriptor CGDebugInfo::getDecla
>> > > if (const TypeDecl *TD = dyn_cast<TypeDecl>(D))
>> > > return getOrCreateType(CGM.getContext().getTypeDeclType(TD),
>> > > getOrCreateFile(TD->getLocation()));
>> > > - llvm::DenseMap<const Decl *, llvm::WeakVH>::iterator I =
>> > > - DeclCache.find(D->getCanonicalDecl());
>> > > + auto I = DeclCache.find(D->getCanonicalDecl());
>> > >
>> > > - if (I != DeclCache.end()) {
>> > > - llvm::Value *V = I->second;
>> > > - return llvm::DIDescriptor(dyn_cast_or_null<llvm::MDNode>(V));
>> > > - }
>> > > + if (I != DeclCache.end())
>> > > + return
>> llvm::DIDescriptor(dyn_cast_or_null<llvm::MDNode>(I->second));
>> > >
>> > > // No definition for now. Emit a forward definition that might be
>> > > // merged with a potential upcoming definition.
>> > > @@ -2465,8 +2463,7 @@ llvm::DISubprogram CGDebugInfo::getFunct
>> > > // Setup context.
>> > > llvm::DIScope S =
>> getContextDescriptor(cast<Decl>(D->getDeclContext()));
>> > >
>> > > - llvm::DenseMap<const FunctionDecl *, llvm::WeakVH>::iterator MI =
>> > > - SPCache.find(FD->getCanonicalDecl());
>> > > + auto MI = SPCache.find(FD->getCanonicalDecl());
>> > > if (MI == SPCache.end()) {
>> > > if (const CXXMethodDecl *MD =
>> > > dyn_cast<CXXMethodDecl>(FD->getCanonicalDecl())) {
>> > > @@ -2477,18 +2474,15 @@ llvm::DISubprogram CGDebugInfo::getFunct
>> > > }
>> > > }
>> > > if (MI != SPCache.end()) {
>> > > - llvm::Value *V = MI->second;
>> > > - llvm::DISubprogram SP(dyn_cast_or_null<llvm::MDNode>(V));
>> > > + llvm::DISubprogram
>> SP(dyn_cast_or_null<llvm::MDNode>(MI->second));
>> > > if (SP.isSubprogram() && !SP.isDefinition())
>> > > return SP;
>> > > }
>> > >
>> > > for (auto NextFD : FD->redecls()) {
>> > > - llvm::DenseMap<const FunctionDecl *, llvm::WeakVH>::iterator MI =
>> > > - SPCache.find(NextFD->getCanonicalDecl());
>> > > + auto MI = SPCache.find(NextFD->getCanonicalDecl());
>> > > if (MI != SPCache.end()) {
>> > > - llvm::Value *V = MI->second;
>> > > - llvm::DISubprogram SP(dyn_cast_or_null<llvm::MDNode>(V));
>> > > + llvm::DISubprogram
>> SP(dyn_cast_or_null<llvm::MDNode>(MI->second));
>> > > if (SP.isSubprogram() && !SP.isDefinition())
>> > > return SP;
>> > > }
>> > > @@ -2513,7 +2507,7 @@ llvm::DICompositeType CGDebugInfo::getOr
>> > > return getOrCreateMethodType(Method, F);
>> > > if (const ObjCMethodDecl *OMethod = dyn_cast<ObjCMethodDecl>(D)) {
>> > > // Add "self" and "_cmd"
>> > > - SmallVector<llvm::Value *, 16> Elts;
>> > > + SmallVector<llvm::Metadata *, 16> Elts;
>> > >
>> > > // First element is always return type. For 'void' functions it
>> is NULL.
>> > > QualType ResultTy = OMethod->getReturnType();
>> > > @@ -2546,7 +2540,7 @@ llvm::DICompositeType CGDebugInfo::getOr
>> > > // unspecified parameter.
>> > > if (const FunctionDecl *FD = dyn_cast<FunctionDecl>(D))
>> > > if (FD->isVariadic()) {
>> > > - SmallVector<llvm::Value *, 16> EltTys;
>> > > + SmallVector<llvm::Metadata *, 16> EltTys;
>> > > EltTys.push_back(getOrCreateType(FD->getReturnType(), F));
>> > > if (const FunctionProtoType *FPT =
>> dyn_cast<FunctionProtoType>(FnType))
>> > > for (unsigned i = 0, e = FPT->getNumParams(); i != e; ++i)
>> > > @@ -2581,15 +2575,13 @@ void CGDebugInfo::EmitFunctionStart(Glob
>> > > LinkageName = Fn->getName();
>> > > } else if (const FunctionDecl *FD = dyn_cast<FunctionDecl>(D)) {
>> > > // If there is a DISubprogram for this function available then
>> use it.
>> > > - llvm::DenseMap<const FunctionDecl *, llvm::WeakVH>::iterator FI =
>> > > - SPCache.find(FD->getCanonicalDecl());
>> > > + auto FI = SPCache.find(FD->getCanonicalDecl());
>> > > if (FI != SPCache.end()) {
>> > > - llvm::Value *V = FI->second;
>> > > - llvm::DIDescriptor SP(dyn_cast_or_null<llvm::MDNode>(V));
>> > > + llvm::DIDescriptor
>> SP(dyn_cast_or_null<llvm::MDNode>(FI->second));
>> > > if (SP.isSubprogram() &&
>> llvm::DISubprogram(SP).isDefinition()) {
>> > > llvm::MDNode *SPN = SP;
>> > > - LexicalBlockStack.push_back(SPN);
>> > > - RegionMap[D] = llvm::WeakVH(SP);
>> > > + LexicalBlockStack.emplace_back(SPN);
>> > > + RegionMap[D].reset(SP);
>> > > return;
>> > > }
>> > > }
>> > > @@ -2629,14 +2621,14 @@ void CGDebugInfo::EmitFunctionStart(Glob
>> > > // code for the initialization of globals. Do not record these
>> decls
>> > > // as they will overwrite the actual VarDecl Decl in the cache.
>> > > if (HasDecl && isa<FunctionDecl>(D))
>> > > - DeclCache.insert(std::make_pair(D->getCanonicalDecl(),
>> llvm::WeakVH(SP)));
>> > > +
>> DeclCache[D->getCanonicalDecl()].reset(static_cast<llvm::Metadata *>(SP));
>> > >
>> > > // Push the function onto the lexical block stack.
>> > > llvm::MDNode *SPN = SP;
>> > > - LexicalBlockStack.push_back(SPN);
>> > > + LexicalBlockStack.emplace_back(SPN);
>> > >
>> > > if (HasDecl)
>> > > - RegionMap[D] = llvm::WeakVH(SP);
>> > > + RegionMap[D].reset(SP);
>> > > }
>> > >
>> > > /// EmitLocation - Emit metadata to indicate a change in line/column
>> > > @@ -2676,7 +2668,7 @@ void CGDebugInfo::CreateLexicalBlock(Sou
>> > > :
>> LexicalBlockStack.back()),
>> > > getOrCreateFile(CurLoc), getLineNumber(CurLoc),
>> getColumnNumber(CurLoc));
>> > > llvm::MDNode *DN = D;
>> > > - LexicalBlockStack.push_back(DN);
>> > > + LexicalBlockStack.emplace_back(DN);
>> > > }
>> > >
>> > > /// EmitLexicalBlockStart - Constructs the debug code for entering a
>> declarative
>> > > @@ -2732,7 +2724,7 @@ void CGDebugInfo::EmitFunctionEnd(CGBuil
>> > > llvm::DIType CGDebugInfo::EmitTypeForVarWithBlocksAttr(const VarDecl
>> *VD,
>> > > uint64_t
>> *XOffset) {
>> > >
>> > > - SmallVector<llvm::Value *, 5> EltTys;
>> > > + SmallVector<llvm::Metadata *, 5> EltTys;
>> > > QualType FType;
>> > > uint64_t FieldSize, FieldOffset;
>> > > unsigned FieldAlign;
>> > > @@ -3047,7 +3039,7 @@ void CGDebugInfo::EmitDeclareOfBlockLite
>> > > const llvm::StructLayout *blockLayout =
>> > > CGM.getDataLayout().getStructLayout(block.StructureType);
>> > >
>> > > - SmallVector<llvm::Value *, 16> fields;
>> > > + SmallVector<llvm::Metadata *, 16> fields;
>> > > fields.push_back(createFieldType("__isa", C.VoidPtrTy, 0, loc,
>> AS_public,
>> > >
>> blockLayout->getElementOffsetInBits(0),
>> > > tunit, tunit));
>> > > @@ -3181,8 +3173,7 @@ llvm::DIDerivedType
>> > > CGDebugInfo::getOrCreateStaticDataMemberDeclarationOrNull(const
>> VarDecl *D) {
>> > > if (!D->isStaticDataMember())
>> > > return llvm::DIDerivedType();
>> > > - llvm::DenseMap<const Decl *, llvm::WeakVH>::iterator MI =
>> > > - StaticDataMemberCache.find(D->getCanonicalDecl());
>> > > + auto MI = StaticDataMemberCache.find(D->getCanonicalDecl());
>> > > if (MI != StaticDataMemberCache.end()) {
>> > > assert(MI->second && "Static data member declaration should
>> still exist");
>> > > return llvm::DIDerivedType(cast<llvm::MDNode>(MI->second));
>> > > @@ -3255,7 +3246,7 @@ void CGDebugInfo::EmitGlobalVariable(llv
>> > > Var->hasInternalLinkage(), Var,
>> > > getOrCreateStaticDataMemberDeclarationOrNull(D));
>> > > }
>> > > - DeclCache.insert(std::make_pair(D->getCanonicalDecl(),
>> llvm::WeakVH(GV)));
>> > > + DeclCache[D->getCanonicalDecl()].reset(static_cast<llvm::Metadata
>> *>(GV));
>> > > }
>> > >
>> > > /// EmitGlobalVariable - Emit global variable's debug info.
>> > > @@ -3291,13 +3282,12 @@ void CGDebugInfo::EmitGlobalVariable(con
>> > > llvm::DIDescriptor DContext =
>> > > getContextDescriptor(dyn_cast<Decl>(VD->getDeclContext()));
>> > >
>> > > - auto pair = DeclCache.insert(std::make_pair(VD, llvm::WeakVH()));
>> > > - if (!pair.second)
>> > > + auto &GV = DeclCache[VD];
>> > > + if (GV)
>> > > return;
>> > > - llvm::DIGlobalVariable GV = DBuilder.createGlobalVariable(
>> > > + GV.reset(DBuilder.createGlobalVariable(
>> > > DContext, Name, StringRef(), Unit,
>> getLineNumber(VD->getLocation()), Ty,
>> > > - true, Init,
>> getOrCreateStaticDataMemberDeclarationOrNull(VarD));
>> > > - pair.first->second = llvm::WeakVH(GV);
>> > > + true, Init,
>> getOrCreateStaticDataMemberDeclarationOrNull(VarD)));
>> > > }
>> > >
>> > > llvm::DIScope CGDebugInfo::getCurrentContextDescriptor(const Decl
>> *D) {
>> > > @@ -3334,7 +3324,7 @@ llvm::DIImportedEntity
>> > > CGDebugInfo::EmitNamespaceAlias(const NamespaceAliasDecl &NA) {
>> > > if (CGM.getCodeGenOpts().getDebugInfo() <
>> CodeGenOptions::LimitedDebugInfo)
>> > > return llvm::DIImportedEntity(nullptr);
>> > > - llvm::WeakVH &VH = NamespaceAliasCache[&NA];
>> > > + auto &VH = NamespaceAliasCache[&NA];
>> > > if (VH)
>> > > return llvm::DIImportedEntity(cast<llvm::MDNode>(VH));
>> > > llvm::DIImportedEntity R(nullptr);
>> > > @@ -3350,7 +3340,7 @@ CGDebugInfo::EmitNamespaceAlias(const Na
>> > > getCurrentContextDescriptor(cast<Decl>(NA.getDeclContext())),
>> > >
>> getOrCreateNameSpace(cast<NamespaceDecl>(NA.getAliasedNamespace())),
>> > > getLineNumber(NA.getLocation()), NA.getName());
>> > > - VH = R;
>> > > + VH.reset(R);
>> > > return R;
>> > > }
>> > >
>> > > @@ -3359,8 +3349,7 @@ CGDebugInfo::EmitNamespaceAlias(const Na
>> > > llvm::DINameSpace
>> > > CGDebugInfo::getOrCreateNameSpace(const NamespaceDecl *NSDecl) {
>> > > NSDecl = NSDecl->getCanonicalDecl();
>> > > - llvm::DenseMap<const NamespaceDecl *, llvm::WeakVH>::iterator I =
>> > > - NameSpaceCache.find(NSDecl);
>> > > + auto I = NameSpaceCache.find(NSDecl);
>> > > if (I != NameSpaceCache.end())
>> > > return llvm::DINameSpace(cast<llvm::MDNode>(I->second));
>> > >
>> > > @@ -3370,7 +3359,7 @@ CGDebugInfo::getOrCreateNameSpace(const
>> > > getContextDescriptor(dyn_cast<Decl>(NSDecl->getDeclContext()));
>> > > llvm::DINameSpace NS =
>> > > DBuilder.createNameSpace(Context, NSDecl->getName(), FileD,
>> LineNo);
>> > > - NameSpaceCache[NSDecl] = llvm::WeakVH(NS);
>> > > + NameSpaceCache[NSDecl].reset(NS);
>> > > return NS;
>> > > }
>> > >
>> > > @@ -3401,19 +3390,19 @@ void CGDebugInfo::finalize() {
>> > > for (const auto &p : FwdDeclReplaceMap) {
>> > > assert(p.second);
>> > > llvm::DIDescriptor FwdDecl(cast<llvm::MDNode>(p.second));
>> > > - llvm::WeakVH VH;
>> > > + llvm::Metadata *Repl;
>> > >
>> > > auto it = DeclCache.find(p.first);
>> > > // If there has been no definition for the declaration, call RAUV
>> > > // with ourselves, that will destroy the temporary MDNode and
>> > > // replace it with a standard one, avoiding leaking memory.
>> > > if (it == DeclCache.end())
>> > > - VH = p.second;
>> > > + Repl = p.second;
>> > > else
>> > > - VH = it->second;
>> > > + Repl = it->second;
>> > >
>> > > FwdDecl.replaceAllUsesWith(CGM.getLLVMContext(),
>> > > -
>> llvm::DIDescriptor(cast<llvm::MDNode>(VH)));
>> > > +
>> llvm::DIDescriptor(cast<llvm::MDNode>(Repl)));
>> > > }
>> > >
>> > > // We keep our own list of retained types, because we need to look
>> > >
>> > > Modified: cfe/trunk/lib/CodeGen/CGDebugInfo.h
>> > > URL:
>> http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/CodeGen/CGDebugInfo.h?rev=223803&r1=223802&r2=223803&view=diff
>> > >
>> ==============================================================================
>> > > --- cfe/trunk/lib/CodeGen/CGDebugInfo.h (original)
>> > > +++ cfe/trunk/lib/CodeGen/CGDebugInfo.h Tue Dec 9 12:39:32 2014
>> > > @@ -65,7 +65,7 @@ class CGDebugInfo {
>> > > llvm::DIType BlockLiteralGeneric;
>> > >
>> > > /// TypeCache - Cache of previously constructed Types.
>> > > - llvm::DenseMap<const void *, llvm::WeakVH> TypeCache;
>> > > + llvm::DenseMap<const void *, llvm::TrackingMDRef> TypeCache;
>> > >
>> > > struct ObjCInterfaceCacheEntry {
>> > > const ObjCInterfaceType *Type;
>> > > @@ -85,15 +85,16 @@ class CGDebugInfo {
>> > >
>> > > /// ReplaceMap - Cache of forward declared types to RAUW at the
>> end of
>> > > /// compilation.
>> > > - std::vector<std::pair<const TagType *, llvm::WeakVH>> ReplaceMap;
>> > > + std::vector<std::pair<const TagType *, llvm::TrackingMDRef>>
>> ReplaceMap;
>> > >
>> > > /// \brief Cache of replaceable forward declarartions (functions
>> and
>> > > /// variables) to RAUW at the end of compilation.
>> > > - std::vector<std::pair<const DeclaratorDecl *, llvm::WeakVH>>
>> FwdDeclReplaceMap;
>> > > + std::vector<std::pair<const DeclaratorDecl *, llvm::TrackingMDRef>>
>> > > + FwdDeclReplaceMap;
>> > >
>> > > // LexicalBlockStack - Keep track of our current nested lexical
>> block.
>> > > - std::vector<llvm::TrackingVH<llvm::MDNode> > LexicalBlockStack;
>> > > - llvm::DenseMap<const Decl *, llvm::WeakVH> RegionMap;
>> > > + std::vector<llvm::TrackingMDNodeRef> LexicalBlockStack;
>> > > + llvm::DenseMap<const Decl *, llvm::TrackingMDRef> RegionMap;
>> > > // FnBeginRegionCount - Keep track of LexicalBlockStack counter at
>> the
>> > > // beginning of a function. This is used to pop unbalanced regions
>> at
>> > > // the end of a function.
>> > > @@ -104,14 +105,15 @@ class CGDebugInfo {
>> > > llvm::BumpPtrAllocator DebugInfoNames;
>> > > StringRef CWDName;
>> > >
>> > > - llvm::DenseMap<const char *, llvm::WeakVH> DIFileCache;
>> > > - llvm::DenseMap<const FunctionDecl *, llvm::WeakVH> SPCache;
>> > > + llvm::DenseMap<const char *, llvm::TrackingMDRef> DIFileCache;
>> > > + llvm::DenseMap<const FunctionDecl *, llvm::TrackingMDRef> SPCache;
>> > > /// \brief Cache declarations relevant to
>> DW_TAG_imported_declarations (C++
>> > > /// using declarations) that aren't covered by other more specific
>> caches.
>> > > - llvm::DenseMap<const Decl *, llvm::WeakVH> DeclCache;
>> > > - llvm::DenseMap<const NamespaceDecl *, llvm::WeakVH> NameSpaceCache;
>> > > - llvm::DenseMap<const NamespaceAliasDecl *, llvm::WeakVH>
>> NamespaceAliasCache;
>> > > - llvm::DenseMap<const Decl *, llvm::WeakVH> StaticDataMemberCache;
>> > > + llvm::DenseMap<const Decl *, llvm::TrackingMDRef> DeclCache;
>> > > + llvm::DenseMap<const NamespaceDecl *, llvm::TrackingMDRef>
>> NameSpaceCache;
>> > > + llvm::DenseMap<const NamespaceAliasDecl *, llvm::TrackingMDRef>
>> > > + NamespaceAliasCache;
>> > > + llvm::DenseMap<const Decl *, llvm::TrackingMDRef>
>> StaticDataMemberCache;
>> > >
>> > > /// Helper functions for getOrCreateType.
>> > > unsigned Checksum(const ObjCInterfaceDecl *InterfaceDecl);
>> > > @@ -162,14 +164,12 @@ class CGDebugInfo {
>> > > llvm::DIFile F,
>> > > llvm::DIType RecordTy);
>> > >
>> > > - void CollectCXXMemberFunctions(const CXXRecordDecl *Decl,
>> > > - llvm::DIFile F,
>> > > - SmallVectorImpl<llvm::Value *> &E,
>> > > + void CollectCXXMemberFunctions(const CXXRecordDecl *Decl,
>> llvm::DIFile F,
>> > > + SmallVectorImpl<llvm::Metadata *>
>> &E,
>> > > llvm::DIType T);
>> > >
>> > > - void CollectCXXBases(const CXXRecordDecl *Decl,
>> > > - llvm::DIFile F,
>> > > - SmallVectorImpl<llvm::Value *> &EltTys,
>> > > + void CollectCXXBases(const CXXRecordDecl *Decl, llvm::DIFile F,
>> > > + SmallVectorImpl<llvm::Metadata *> &EltTys,
>> > > llvm::DIType RecordTy);
>> > >
>> > > llvm::DIArray
>> > > @@ -192,23 +192,21 @@ class CGDebugInfo {
>> > >
>> > > // Helpers for collecting fields of a record.
>> > > void CollectRecordLambdaFields(const CXXRecordDecl *CXXDecl,
>> > > - SmallVectorImpl<llvm::Value *> &E,
>> > > + SmallVectorImpl<llvm::Metadata *>
>> &E,
>> > > llvm::DIType RecordTy);
>> > > llvm::DIDerivedType CreateRecordStaticField(const VarDecl *Var,
>> > > llvm::DIType RecordTy,
>> > > const RecordDecl* RD);
>> > > void CollectRecordNormalField(const FieldDecl *Field, uint64_t
>> OffsetInBits,
>> > > llvm::DIFile F,
>> > > - SmallVectorImpl<llvm::Value *> &E,
>> > > - llvm::DIType RecordTy,
>> > > - const RecordDecl* RD);
>> > > + SmallVectorImpl<llvm::Metadata *> &E,
>> > > + llvm::DIType RecordTy, const
>> RecordDecl *RD);
>> > > void CollectRecordFields(const RecordDecl *Decl, llvm::DIFile F,
>> > > - SmallVectorImpl<llvm::Value *> &E,
>> > > + SmallVectorImpl<llvm::Metadata *> &E,
>> > > llvm::DICompositeType RecordTy);
>> > >
>> > > - void CollectVTableInfo(const CXXRecordDecl *Decl,
>> > > - llvm::DIFile F,
>> > > - SmallVectorImpl<llvm::Value *> &EltTys);
>> > > + void CollectVTableInfo(const CXXRecordDecl *Decl, llvm::DIFile F,
>> > > + SmallVectorImpl<llvm::Metadata *> &EltTys);
>> > >
>> > > // CreateLexicalBlock - Create a new lexical block node and push
>> it on
>> > > // the stack.
>> > >
>> > > Modified: cfe/trunk/lib/CodeGen/CGExpr.cpp
>> > > URL:
>> http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/CodeGen/CGExpr.cpp?rev=223803&r1=223802&r2=223803&view=diff
>> > >
>> ==============================================================================
>> > > --- cfe/trunk/lib/CodeGen/CGExpr.cpp (original)
>> > > +++ cfe/trunk/lib/CodeGen/CGExpr.cpp Tue Dec 9 12:39:32 2014
>> > > @@ -1415,8 +1415,8 @@ llvm::Value *CodeGenFunction::EmitExtVec
>> > > RValue CodeGenFunction::EmitLoadOfGlobalRegLValue(LValue LV) {
>> > > assert((LV.getType()->isIntegerType() ||
>> LV.getType()->isPointerType()) &&
>> > > "Bad type for register variable");
>> > > - llvm::MDNode *RegName = dyn_cast<llvm::MDNode>(LV.getGlobalReg());
>> > > - assert(RegName && "Register LValue is not metadata");
>> > > + llvm::MDNode *RegName = cast<llvm::MDNode>(
>> > > + cast<llvm::MetadataAsValue>(LV.getGlobalReg())->getMetadata());
>> > >
>> > > // We accept integer and pointer types only
>> > > llvm::Type *OrigTy = CGM.getTypes().ConvertType(LV.getType());
>> > > @@ -1426,7 +1426,8 @@ RValue CodeGenFunction::EmitLoadOfGlobal
>> > > llvm::Type *Types[] = { Ty };
>> > >
>> > > llvm::Value *F = CGM.getIntrinsic(llvm::Intrinsic::read_register,
>> Types);
>> > > - llvm::Value *Call = Builder.CreateCall(F, RegName);
>> > > + llvm::Value *Call = Builder.CreateCall(
>> > > + F, llvm::MetadataAsValue::get(Ty->getContext(), RegName));
>> > > if (OrigTy->isPointerTy())
>> > > Call = Builder.CreateIntToPtr(Call, OrigTy);
>> > > return RValue::get(Call);
>> > > @@ -1680,7 +1681,8 @@ void CodeGenFunction::EmitStoreThroughEx
>> > > void CodeGenFunction::EmitStoreThroughGlobalRegLValue(RValue Src,
>> LValue Dst) {
>> > > assert((Dst.getType()->isIntegerType() ||
>> Dst.getType()->isPointerType()) &&
>> > > "Bad type for register variable");
>> > > - llvm::MDNode *RegName = dyn_cast<llvm::MDNode>(Dst.getGlobalReg());
>> > > + llvm::MDNode *RegName = cast<llvm::MDNode>(
>> > > +
>> cast<llvm::MetadataAsValue>(Dst.getGlobalReg())->getMetadata());
>> > > assert(RegName && "Register LValue is not metadata");
>> > >
>> > > // We accept integer and pointer types only
>> > > @@ -1694,7 +1696,8 @@ void CodeGenFunction::EmitStoreThroughGl
>> > > llvm::Value *Value = Src.getScalarVal();
>> > > if (OrigTy->isPointerTy())
>> > > Value = Builder.CreatePtrToInt(Value, Ty);
>> > > - Builder.CreateCall2(F, RegName, Value);
>> > > + Builder.CreateCall2(F,
>> llvm::MetadataAsValue::get(Ty->getContext(), RegName),
>> > > + Value);
>> > > }
>> > >
>> > > // setObjCGCLValueClass - sets class of the lvalue for the purpose of
>> > > @@ -1889,10 +1892,12 @@ static LValue EmitGlobalNamedRegister(co
>> > > if (M->getNumOperands() == 0) {
>> > > llvm::MDString *Str = llvm::MDString::get(CGM.getLLVMContext(),
>> > > Asm->getLabel());
>> > > - llvm::Value *Ops[] = { Str };
>> > > + llvm::Metadata *Ops[] = {Str};
>> > > M->addOperand(llvm::MDNode::get(CGM.getLLVMContext(), Ops));
>> > > }
>> > > - return LValue::MakeGlobalReg(M->getOperand(0), VD->getType(),
>> Alignment);
>> > > + return LValue::MakeGlobalReg(
>> > > + llvm::MetadataAsValue::get(CGM.getLLVMContext(),
>> M->getOperand(0)),
>> > > + VD->getType(), Alignment);
>> > > }
>> > >
>> > > LValue CodeGenFunction::EmitDeclRefLValue(const DeclRefExpr *E) {
>> > >
>> > > Modified: cfe/trunk/lib/CodeGen/CGLoopInfo.cpp
>> > > URL:
>> http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/CodeGen/CGLoopInfo.cpp?rev=223803&r1=223802&r2=223803&view=diff
>> > >
>> ==============================================================================
>> > > --- cfe/trunk/lib/CodeGen/CGLoopInfo.cpp (original)
>> > > +++ cfe/trunk/lib/CodeGen/CGLoopInfo.cpp Tue Dec 9 12:39:32 2014
>> > > @@ -24,40 +24,39 @@ static MDNode *createMetadata(LLVMContex
>> > > Attrs.VectorizerEnable == LoopAttributes::VecUnspecified)
>> > > return nullptr;
>> > >
>> > > - SmallVector<Value *, 4> Args;
>> > > + SmallVector<Metadata *, 4> Args;
>> > > // Reserve operand 0 for loop id self reference.
>> > > MDNode *TempNode = MDNode::getTemporary(Ctx, None);
>> > > Args.push_back(TempNode);
>> > >
>> > > // Setting vectorizer.width
>> > > if (Attrs.VectorizerWidth > 0) {
>> > > - Value *Vals[] = { MDString::get(Ctx,
>> "llvm.loop.vectorize.width"),
>> > > - ConstantInt::get(Type::getInt32Ty(Ctx),
>> > > - Attrs.VectorizerWidth) };
>> > > + Metadata *Vals[] = {MDString::get(Ctx,
>> "llvm.loop.vectorize.width"),
>> > > + ConstantAsMetadata::get(ConstantInt::get(
>> > > + Type::getInt32Ty(Ctx),
>> Attrs.VectorizerWidth))};
>> > > Args.push_back(MDNode::get(Ctx, Vals));
>> > > }
>> > >
>> > > // Setting vectorizer.unroll
>> > > if (Attrs.VectorizerUnroll > 0) {
>> > > - Value *Vals[] = { MDString::get(Ctx,
>> "llvm.loop.interleave.count"),
>> > > - ConstantInt::get(Type::getInt32Ty(Ctx),
>> > > - Attrs.VectorizerUnroll) };
>> > > + Metadata *Vals[] = {MDString::get(Ctx,
>> "llvm.loop.interleave.count"),
>> > > + ConstantAsMetadata::get(ConstantInt::get(
>> > > + Type::getInt32Ty(Ctx),
>> Attrs.VectorizerUnroll))};
>> > > Args.push_back(MDNode::get(Ctx, Vals));
>> > > }
>> > >
>> > > // Setting vectorizer.enable
>> > > if (Attrs.VectorizerEnable != LoopAttributes::VecUnspecified) {
>> > > - Value *Vals[] = { MDString::get(Ctx,
>> "llvm.loop.vectorize.enable"),
>> > > - ConstantInt::get(Type::getInt1Ty(Ctx),
>> > > - (Attrs.VectorizerEnable ==
>> > > - LoopAttributes::VecEnable))
>> };
>> > > + Metadata *Vals[] = {
>> > > + MDString::get(Ctx, "llvm.loop.vectorize.enable"),
>> > > + ConstantAsMetadata::get(ConstantInt::get(
>> > > + Type::getInt1Ty(Ctx),
>> > > + (Attrs.VectorizerEnable == LoopAttributes::VecEnable)))};
>> > > Args.push_back(MDNode::get(Ctx, Vals));
>> > > }
>> > >
>> > > - MDNode *LoopID = MDNode::get(Ctx, Args);
>> > > - assert(LoopID->use_empty() && "LoopID should not be used");
>> > > -
>> > > // Set the first operand to itself.
>> > > + MDNode *LoopID = MDNode::get(Ctx, Args);
>> > > LoopID->replaceOperandWith(0, LoopID);
>> > > MDNode::deleteTemporary(TempNode);
>> > > return LoopID;
>> > >
>> > > Modified: cfe/trunk/lib/CodeGen/CGObjC.cpp
>> > > URL:
>> http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/CodeGen/CGObjC.cpp?rev=223803&r1=223802&r2=223803&view=diff
>> > >
>> ==============================================================================
>> > > --- cfe/trunk/lib/CodeGen/CGObjC.cpp (original)
>> > > +++ cfe/trunk/lib/CodeGen/CGObjC.cpp Tue Dec 9 12:39:32 2014
>> > > @@ -1938,9 +1938,8 @@ llvm::Value *CodeGenFunction::EmitARCRet
>> > > = cast<llvm::CallInst>(result->stripPointerCasts());
>> > > assert(call->getCalledValue() ==
>> CGM.getARCEntrypoints().objc_retainBlock);
>> > >
>> > > - SmallVector<llvm::Value*,1> args;
>> > > call->setMetadata("clang.arc.copy_on_escape",
>> > > - llvm::MDNode::get(Builder.getContext(), args));
>> > > + llvm::MDNode::get(Builder.getContext(), None));
>> > > }
>> > >
>> > > return result;
>> > > @@ -1982,8 +1981,8 @@ CodeGenFunction::EmitARCRetainAutoreleas
>> > >
>> "clang.arc.retainAutoreleasedReturnValueMarker");
>> > > assert(metadata->getNumOperands() <= 1);
>> > > if (metadata->getNumOperands() == 0) {
>> > > - llvm::Value *string = llvm::MDString::get(getLLVMContext(),
>> assembly);
>> > > - metadata->addOperand(llvm::MDNode::get(getLLVMContext(),
>> string));
>> > > + metadata->addOperand(llvm::MDNode::get(
>> > > + getLLVMContext(), llvm::MDString::get(getLLVMContext(),
>> assembly)));
>> > > }
>> > > }
>> > > }
>> > > @@ -2016,9 +2015,8 @@ void CodeGenFunction::EmitARCRelease(llv
>> > > llvm::CallInst *call = EmitNounwindRuntimeCall(fn, value);
>> > >
>> > > if (precise == ARCImpreciseLifetime) {
>> > > - SmallVector<llvm::Value*,1> args;
>> > > call->setMetadata("clang.imprecise_release",
>> > > - llvm::MDNode::get(Builder.getContext(), args));
>> > > + llvm::MDNode::get(Builder.getContext(), None));
>> > > }
>> > > }
>> > >
>> > >
>> > > Modified: cfe/trunk/lib/CodeGen/CGObjCGNU.cpp
>> > > URL:
>> http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/CodeGen/CGObjCGNU.cpp?rev=223803&r1=223802&r2=223803&view=diff
>> > >
>> ==============================================================================
>> > > --- cfe/trunk/lib/CodeGen/CGObjCGNU.cpp (original)
>> > > +++ cfe/trunk/lib/CodeGen/CGObjCGNU.cpp Tue Dec 9 12:39:32 2014
>> > > @@ -1296,11 +1296,11 @@ CGObjCGNU::GenerateMessageSendSuper(Code
>> > > llvm::Value *imp = LookupIMPSuper(CGF, ObjCSuper, cmd, MSI);
>> > > imp = EnforceType(Builder, imp, MSI.MessengerType);
>> > >
>> > > - llvm::Value *impMD[] = {
>> > > + llvm::Metadata *impMD[] = {
>> > > llvm::MDString::get(VMContext, Sel.getAsString()),
>> > > llvm::MDString::get(VMContext,
>> Class->getSuperClass()->getNameAsString()),
>> > > - llvm::ConstantInt::get(llvm::Type::getInt1Ty(VMContext),
>> IsClassMessage)
>> > > - };
>> > > + llvm::ConstantAsMetadata::get(llvm::ConstantInt::get(
>> > > + llvm::Type::getInt1Ty(VMContext), IsClassMessage))};
>> > > llvm::MDNode *node = llvm::MDNode::get(VMContext, impMD);
>> > >
>> > > llvm::Instruction *call;
>> > > @@ -1371,12 +1371,11 @@ CGObjCGNU::GenerateMessageSend(CodeGenFu
>> > > cmd = EnforceType(Builder, cmd, SelectorTy);
>> > > Receiver = EnforceType(Builder, Receiver, IdTy);
>> > >
>> > > - llvm::Value *impMD[] = {
>> > > - llvm::MDString::get(VMContext, Sel.getAsString()),
>> > > - llvm::MDString::get(VMContext, Class ?
>> Class->getNameAsString() :""),
>> > > - llvm::ConstantInt::get(llvm::Type::getInt1Ty(VMContext),
>> > > - Class!=nullptr)
>> > > - };
>> > > + llvm::Metadata *impMD[] = {
>> > > + llvm::MDString::get(VMContext, Sel.getAsString()),
>> > > + llvm::MDString::get(VMContext, Class ?
>> Class->getNameAsString() : ""),
>> > > + llvm::ConstantAsMetadata::get(llvm::ConstantInt::get(
>> > > + llvm::Type::getInt1Ty(VMContext), Class != nullptr))};
>> > > llvm::MDNode *node = llvm::MDNode::get(VMContext, impMD);
>> > >
>> > > CallArgList ActualArgs;
>> > >
>> > > Modified: cfe/trunk/lib/CodeGen/CGObjCMac.cpp
>> > > URL:
>> http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/CodeGen/CGObjCMac.cpp?rev=223803&r1=223802&r2=223803&view=diff
>> > >
>> ==============================================================================
>> > > --- cfe/trunk/lib/CodeGen/CGObjCMac.cpp (original)
>> > > +++ cfe/trunk/lib/CodeGen/CGObjCMac.cpp Tue Dec 9 12:39:32 2014
>> > > @@ -4278,11 +4278,10 @@ void CGObjCCommonMac::EmitImageInfo() {
>> > > eImageInfo_GCOnly);
>> > >
>> > > // Require that GC be specified and set to
>> eImageInfo_GarbageCollected.
>> > > - llvm::Value *Ops[2] = {
>> > > - llvm::MDString::get(VMContext, "Objective-C Garbage
>> Collection"),
>> > > - llvm::ConstantInt::get(llvm::Type::getInt32Ty(VMContext),
>> > > - eImageInfo_GarbageCollected)
>> > > - };
>> > > + llvm::Metadata *Ops[2] = {
>> > > + llvm::MDString::get(VMContext, "Objective-C Garbage
>> Collection"),
>> > > + llvm::ConstantAsMetadata::get(llvm::ConstantInt::get(
>> > > + llvm::Type::getInt32Ty(VMContext),
>> eImageInfo_GarbageCollected))};
>> > > Mod.addModuleFlag(llvm::Module::Require, "Objective-C GC Only",
>> > > llvm::MDNode::get(VMContext, Ops));
>> > > }
>> > >
>> > > Modified: cfe/trunk/lib/CodeGen/CGStmt.cpp
>> > > URL:
>> http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/CodeGen/CGStmt.cpp?rev=223803&r1=223802&r2=223803&view=diff
>> > >
>> ==============================================================================
>> > > --- cfe/trunk/lib/CodeGen/CGStmt.cpp (original)
>> > > +++ cfe/trunk/lib/CodeGen/CGStmt.cpp Tue Dec 9 12:39:32 2014
>> > > @@ -591,7 +591,9 @@ void CodeGenFunction::EmitCondBrHints(ll
>> > > return;
>> > >
>> > > // Add vectorize and unroll hints to the metadata on the
>> conditional branch.
>> > > - SmallVector<llvm::Value *, 2> Metadata(1);
>> > > + //
>> > > + // FIXME: Should this really start with a size of 1?
>> > > + SmallVector<llvm::Metadata *, 2> Metadata(1);
>> > > for (const auto *Attr : Attrs) {
>> > > const LoopHintAttr *LH = dyn_cast<LoopHintAttr>(Attr);
>> > >
>> > > @@ -629,7 +631,7 @@ void CodeGenFunction::EmitCondBrHints(ll
>> > > ValueInt = static_cast<int>(ValueAPS.getSExtValue());
>> > > }
>> > >
>> > > - llvm::Value *Value;
>> > > + llvm::Constant *Value;
>> > > llvm::MDString *Name;
>> > > switch (Option) {
>> > > case LoopHintAttr::Vectorize:
>> > > @@ -656,15 +658,16 @@ void CodeGenFunction::EmitCondBrHints(ll
>> > > break;
>> > > }
>> > >
>> > > - SmallVector<llvm::Value *, 2> OpValues;
>> > > + SmallVector<llvm::Metadata *, 2> OpValues;
>> > > OpValues.push_back(Name);
>> > > if (Value)
>> > > - OpValues.push_back(Value);
>> > > + OpValues.push_back(llvm::ConstantAsMetadata::get(Value));
>> > >
>> > > // Set or overwrite metadata indicated by Name.
>> > > Metadata.push_back(llvm::MDNode::get(Context, OpValues));
>> > > }
>> > >
>> > > + // FIXME: This condition is never false. Should it be an assert?
>> > > if (!Metadata.empty()) {
>> > > // Add llvm.loop MDNode to CondBr.
>> > > llvm::MDNode *LoopID = llvm::MDNode::get(Context, Metadata);
>> > > @@ -1766,10 +1769,10 @@ llvm::Value* CodeGenFunction::EmitAsmInp
>> > > /// asm.
>> > > static llvm::MDNode *getAsmSrcLocInfo(const StringLiteral *Str,
>> > > CodeGenFunction &CGF) {
>> > > - SmallVector<llvm::Value *, 8> Locs;
>> > > + SmallVector<llvm::Metadata *, 8> Locs;
>> > > // Add the location of the first line to the MDNode.
>> > > - Locs.push_back(llvm::ConstantInt::get(CGF.Int32Ty,
>> > > -
>> Str->getLocStart().getRawEncoding()));
>> > > +
>> Locs.push_back(llvm::ConstantAsMetadata::get(llvm::ConstantInt::get(
>> > > + CGF.Int32Ty, Str->getLocStart().getRawEncoding())));
>> > > StringRef StrVal = Str->getString();
>> > > if (!StrVal.empty()) {
>> > > const SourceManager &SM =
>> CGF.CGM.getContext().getSourceManager();
>> > > @@ -1781,8 +1784,8 @@ static llvm::MDNode *getAsmSrcLocInfo(co
>> > > if (StrVal[i] != '\n') continue;
>> > > SourceLocation LineLoc = Str->getLocationOfByte(i+1, SM,
>> LangOpts,
>> > >
>> CGF.getTarget());
>> > > - Locs.push_back(llvm::ConstantInt::get(CGF.Int32Ty,
>> > > -
>> LineLoc.getRawEncoding()));
>> > > + Locs.push_back(llvm::ConstantAsMetadata::get(
>> > > + llvm::ConstantInt::get(CGF.Int32Ty,
>> LineLoc.getRawEncoding())));
>> > > }
>> > > }
>> > >
>> > > @@ -2052,7 +2055,9 @@ void CodeGenFunction::EmitAsmStmt(const
>> > > } else {
>> > > // At least put the line number on MS inline asm blobs.
>> > > auto Loc = llvm::ConstantInt::get(Int32Ty,
>> S.getAsmLoc().getRawEncoding());
>> > > - Result->setMetadata("srcloc",
>> llvm::MDNode::get(getLLVMContext(), Loc));
>> > > + Result->setMetadata("srcloc",
>> > > + llvm::MDNode::get(getLLVMContext(),
>> > > +
>> llvm::ConstantAsMetadata::get(Loc)));
>> > > }
>> > >
>> > > // Extract all of the register value results from the asm.
>> > >
>> > > Modified: cfe/trunk/lib/CodeGen/CodeGenFunction.cpp
>> > > URL:
>> http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/CodeGen/CodeGenFunction.cpp?rev=223803&r1=223802&r2=223803&view=diff
>> > >
>> ==============================================================================
>> > > --- cfe/trunk/lib/CodeGen/CodeGenFunction.cpp (original)
>> > > +++ cfe/trunk/lib/CodeGen/CodeGenFunction.cpp Tue Dec 9 12:39:32 2014
>> > > @@ -349,9 +349,9 @@ void CodeGenFunction::EmitMCountInstrume
>> > > // information in the program executable. The argument information
>> stored
>> > > // includes the argument name, its type, the address and access
>> qualifiers used.
>> > > static void GenOpenCLArgMetadata(const FunctionDecl *FD,
>> llvm::Function *Fn,
>> > > - CodeGenModule
>> &CGM,llvm::LLVMContext &Context,
>> > > - SmallVector <llvm::Value*, 5>
>> &kernelMDArgs,
>> > > - CGBuilderTy& Builder, ASTContext
>> &ASTCtx) {
>> > > + CodeGenModule &CGM,
>> llvm::LLVMContext &Context,
>> > > + SmallVector<llvm::Metadata *, 5>
>> &kernelMDArgs,
>> > > + CGBuilderTy &Builder, ASTContext
>> &ASTCtx) {
>> > > // Create MDNodes that represent the kernel arg metadata.
>> > > // Each MDNode is a list in the form of "key", N number of values
>> which is
>> > > // the same number of values as their are kernel arguments.
>> > > @@ -359,28 +359,28 @@ static void GenOpenCLArgMetadata(const F
>> > > const PrintingPolicy &Policy = ASTCtx.getPrintingPolicy();
>> > >
>> > > // MDNode for the kernel argument address space qualifiers.
>> > > - SmallVector<llvm::Value*, 8> addressQuals;
>> > > + SmallVector<llvm::Metadata *, 8> addressQuals;
>> > > addressQuals.push_back(llvm::MDString::get(Context,
>> "kernel_arg_addr_space"));
>> > >
>> > > // MDNode for the kernel argument access qualifiers (images only).
>> > > - SmallVector<llvm::Value*, 8> accessQuals;
>> > > + SmallVector<llvm::Metadata *, 8> accessQuals;
>> > > accessQuals.push_back(llvm::MDString::get(Context,
>> "kernel_arg_access_qual"));
>> > >
>> > > // MDNode for the kernel argument type names.
>> > > - SmallVector<llvm::Value*, 8> argTypeNames;
>> > > + SmallVector<llvm::Metadata *, 8> argTypeNames;
>> > > argTypeNames.push_back(llvm::MDString::get(Context,
>> "kernel_arg_type"));
>> > >
>> > > // MDNode for the kernel argument base type names.
>> > > - SmallVector<llvm::Value*, 8> argBaseTypeNames;
>> > > + SmallVector<llvm::Metadata *, 8> argBaseTypeNames;
>> > > argBaseTypeNames.push_back(
>> > > llvm::MDString::get(Context, "kernel_arg_base_type"));
>> > >
>> > > // MDNode for the kernel argument type qualifiers.
>> > > - SmallVector<llvm::Value*, 8> argTypeQuals;
>> > > + SmallVector<llvm::Metadata *, 8> argTypeQuals;
>> > > argTypeQuals.push_back(llvm::MDString::get(Context,
>> "kernel_arg_type_qual"));
>> > >
>> > > // MDNode for the kernel argument names.
>> > > - SmallVector<llvm::Value*, 8> argNames;
>> > > + SmallVector<llvm::Metadata *, 8> argNames;
>> > > argNames.push_back(llvm::MDString::get(Context,
>> "kernel_arg_name"));
>> > >
>> > > for (unsigned i = 0, e = FD->getNumParams(); i != e; ++i) {
>> > > @@ -392,8 +392,8 @@ static void GenOpenCLArgMetadata(const F
>> > > QualType pointeeTy = ty->getPointeeType();
>> > >
>> > > // Get address qualifier.
>> > > -
>> addressQuals.push_back(Builder.getInt32(ASTCtx.getTargetAddressSpace(
>> > > - pointeeTy.getAddressSpace())));
>> > > +
>> addressQuals.push_back(llvm::ConstantAsMetadata::get(Builder.getInt32(
>> > > +
>> ASTCtx.getTargetAddressSpace(pointeeTy.getAddressSpace()))));
>> > >
>> > > // Get argument type name.
>> > > std::string typeName =
>> > > @@ -432,7 +432,8 @@ static void GenOpenCLArgMetadata(const F
>> > > AddrSpc =
>> > >
>> CGM.getContext().getTargetAddressSpace(LangAS::opencl_global);
>> > >
>> > > - addressQuals.push_back(Builder.getInt32(AddrSpc));
>> > > + addressQuals.push_back(
>> > > + llvm::ConstantAsMetadata::get(Builder.getInt32(AddrSpc)));
>> > >
>> > > // Get argument type name.
>> > > std::string typeName =
>> ty.getUnqualifiedType().getAsString(Policy);
>> > > @@ -495,8 +496,8 @@ void CodeGenFunction::EmitOpenCLKernelMe
>> > >
>> > > llvm::LLVMContext &Context = getLLVMContext();
>> > >
>> > > - SmallVector <llvm::Value*, 5> kernelMDArgs;
>> > > - kernelMDArgs.push_back(Fn);
>> > > + SmallVector<llvm::Metadata *, 5> kernelMDArgs;
>> > > + kernelMDArgs.push_back(llvm::ConstantAsMetadata::get(Fn));
>> > >
>> > > GenOpenCLArgMetadata(FD, Fn, CGM, Context, kernelMDArgs, Builder,
>> > > getContext());
>> > > @@ -507,33 +508,31 @@ void CodeGenFunction::EmitOpenCLKernelMe
>> > > bool isSignedInteger =
>> > > hintQTy->isSignedIntegerType() ||
>> > > (hintEltQTy &&
>> hintEltQTy->getElementType()->isSignedIntegerType());
>> > > - llvm::Value *attrMDArgs[] = {
>> > > - llvm::MDString::get(Context, "vec_type_hint"),
>> > > -
>> llvm::UndefValue::get(CGM.getTypes().ConvertType(A->getTypeHint())),
>> > > - llvm::ConstantInt::get(
>> > > - llvm::IntegerType::get(Context, 32),
>> > > - llvm::APInt(32, (uint64_t)(isSignedInteger ? 1 : 0)))
>> > > - };
>> > > + llvm::Metadata *attrMDArgs[] = {
>> > > + llvm::MDString::get(Context, "vec_type_hint"),
>> > > + llvm::ConstantAsMetadata::get(llvm::UndefValue::get(
>> > > + CGM.getTypes().ConvertType(A->getTypeHint()))),
>> > > + llvm::ConstantAsMetadata::get(llvm::ConstantInt::get(
>> > > + llvm::IntegerType::get(Context, 32),
>> > > + llvm::APInt(32, (uint64_t)(isSignedInteger ? 1 : 0))))};
>> > > kernelMDArgs.push_back(llvm::MDNode::get(Context, attrMDArgs));
>> > > }
>> > >
>> > > if (const WorkGroupSizeHintAttr *A =
>> FD->getAttr<WorkGroupSizeHintAttr>()) {
>> > > - llvm::Value *attrMDArgs[] = {
>> > > - llvm::MDString::get(Context, "work_group_size_hint"),
>> > > - Builder.getInt32(A->getXDim()),
>> > > - Builder.getInt32(A->getYDim()),
>> > > - Builder.getInt32(A->getZDim())
>> > > - };
>> > > + llvm::Metadata *attrMDArgs[] = {
>> > > + llvm::MDString::get(Context, "work_group_size_hint"),
>> > > +
>> llvm::ConstantAsMetadata::get(Builder.getInt32(A->getXDim())),
>> > > +
>> llvm::ConstantAsMetadata::get(Builder.getInt32(A->getYDim())),
>> > > +
>> llvm::ConstantAsMetadata::get(Builder.getInt32(A->getZDim()))};
>> > > kernelMDArgs.push_back(llvm::MDNode::get(Context, attrMDArgs));
>> > > }
>> > >
>> > > if (const ReqdWorkGroupSizeAttr *A =
>> FD->getAttr<ReqdWorkGroupSizeAttr>()) {
>> > > - llvm::Value *attrMDArgs[] = {
>> > > - llvm::MDString::get(Context, "reqd_work_group_size"),
>> > > - Builder.getInt32(A->getXDim()),
>> > > - Builder.getInt32(A->getYDim()),
>> > > - Builder.getInt32(A->getZDim())
>> > > - };
>> > > + llvm::Metadata *attrMDArgs[] = {
>> > > + llvm::MDString::get(Context, "reqd_work_group_size"),
>> > > +
>> llvm::ConstantAsMetadata::get(Builder.getInt32(A->getXDim())),
>> > > +
>> llvm::ConstantAsMetadata::get(Builder.getInt32(A->getYDim())),
>> > > +
>> llvm::ConstantAsMetadata::get(Builder.getInt32(A->getZDim()))};
>> > > kernelMDArgs.push_back(llvm::MDNode::get(Context, attrMDArgs));
>> > > }
>> > >
>> > >
>> > > Modified: cfe/trunk/lib/CodeGen/CodeGenModule.cpp
>> > > URL:
>> http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/CodeGen/CodeGenModule.cpp?rev=223803&r1=223802&r2=223803&view=diff
>> > >
>> ==============================================================================
>> > > --- cfe/trunk/lib/CodeGen/CodeGenModule.cpp (original)
>> > > +++ cfe/trunk/lib/CodeGen/CodeGenModule.cpp Tue Dec 9 12:39:32 2014
>> > > @@ -952,29 +952,28 @@ void CodeGenModule::emitLLVMUsed() {
>> > > }
>> > >
>> > > void CodeGenModule::AppendLinkerOptions(StringRef Opts) {
>> > > - llvm::Value *MDOpts = llvm::MDString::get(getLLVMContext(), Opts);
>> > > + auto *MDOpts = llvm::MDString::get(getLLVMContext(), Opts);
>> > >
>> LinkerOptionsMetadata.push_back(llvm::MDNode::get(getLLVMContext(),
>> MDOpts));
>> > > }
>> > >
>> > > void CodeGenModule::AddDetectMismatch(StringRef Name, StringRef
>> Value) {
>> > > llvm::SmallString<32> Opt;
>> > > getTargetCodeGenInfo().getDetectMismatchOption(Name, Value, Opt);
>> > > - llvm::Value *MDOpts = llvm::MDString::get(getLLVMContext(), Opt);
>> > > + auto *MDOpts = llvm::MDString::get(getLLVMContext(), Opt);
>> > >
>> LinkerOptionsMetadata.push_back(llvm::MDNode::get(getLLVMContext(),
>> MDOpts));
>> > > }
>> > >
>> > > void CodeGenModule::AddDependentLib(StringRef Lib) {
>> > > llvm::SmallString<24> Opt;
>> > > getTargetCodeGenInfo().getDependentLibraryOption(Lib, Opt);
>> > > - llvm::Value *MDOpts = llvm::MDString::get(getLLVMContext(), Opt);
>> > > + auto *MDOpts = llvm::MDString::get(getLLVMContext(), Opt);
>> > >
>> LinkerOptionsMetadata.push_back(llvm::MDNode::get(getLLVMContext(),
>> MDOpts));
>> > > }
>> > >
>> > > /// \brief Add link options implied by the given module, including
>> modules
>> > > /// it depends on, using a postorder walk.
>> > > -static void addLinkOptionsPostorder(CodeGenModule &CGM,
>> > > - Module *Mod,
>> > > - SmallVectorImpl<llvm::Value *>
>> &Metadata,
>> > > +static void addLinkOptionsPostorder(CodeGenModule &CGM, Module *Mod,
>> > > + SmallVectorImpl<llvm::Metadata
>> *> &Metadata,
>> > > llvm::SmallPtrSet<Module *, 16>
>> &Visited) {
>> > > // Import this module's parent.
>> > > if (Mod->Parent && Visited.insert(Mod->Parent).second) {
>> > > @@ -994,10 +993,9 @@ static void addLinkOptionsPostorder(Code
>> > > // Link against a framework. Frameworks are currently Darwin
>> only, so we
>> > > // don't to ask TargetCodeGenInfo for the spelling of the linker
>> option.
>> > > if (Mod->LinkLibraries[I-1].IsFramework) {
>> > > - llvm::Value *Args[2] = {
>> > > - llvm::MDString::get(Context, "-framework"),
>> > > - llvm::MDString::get(Context, Mod->LinkLibraries[I-1].Library)
>> > > - };
>> > > + llvm::Metadata *Args[2] = {
>> > > + llvm::MDString::get(Context, "-framework"),
>> > > + llvm::MDString::get(Context, Mod->LinkLibraries[I -
>> 1].Library)};
>> > >
>> > > Metadata.push_back(llvm::MDNode::get(Context, Args));
>> > > continue;
>> > > @@ -1007,7 +1005,7 @@ static void addLinkOptionsPostorder(Code
>> > > llvm::SmallString<24> Opt;
>> > > CGM.getTargetCodeGenInfo().getDependentLibraryOption(
>> > > Mod->LinkLibraries[I-1].Library, Opt);
>> > > - llvm::Value *OptString = llvm::MDString::get(Context, Opt);
>> > > + auto *OptString = llvm::MDString::get(Context, Opt);
>> > > Metadata.push_back(llvm::MDNode::get(Context, OptString));
>> > > }
>> > > }
>> > > @@ -1060,7 +1058,7 @@ void CodeGenModule::EmitModuleLinkOption
>> > > // Add link options for all of the imported modules in reverse
>> topological
>> > > // order. We don't do anything to try to order import link flags
>> with respect
>> > > // to linker options inserted by things like #pragma comment().
>> > > - SmallVector<llvm::Value *, 16> MetadataArgs;
>> > > + SmallVector<llvm::Metadata *, 16> MetadataArgs;
>> > > Visited.clear();
>> > > for (llvm::SetVector<clang::Module *>::iterator M =
>> LinkModules.begin(),
>> > > MEnd =
>> LinkModules.end();
>> > > @@ -3396,10 +3394,9 @@ static void EmitGlobalDeclMetadata(CodeG
>> > >
>> CGM.getModule().getOrInsertNamedMetadata("clang.global.decl.ptrs");
>> > >
>> > > // TODO: should we report variant information for ctors/dtors?
>> > > - llvm::Value *Ops[] = {
>> > > - Addr,
>> > > - GetPointerConstant(CGM.getLLVMContext(), D.getDecl())
>> > > - };
>> > > + llvm::Metadata *Ops[] = {llvm::ConstantAsMetadata::get(Addr),
>> > > +
>> llvm::ConstantAsMetadata::get(GetPointerConstant(
>> > > + CGM.getLLVMContext(), D.getDecl()))};
>> > > GlobalMetadata->addOperand(llvm::MDNode::get(CGM.getLLVMContext(),
>> Ops));
>> > > }
>> > >
>> > > @@ -3462,7 +3459,9 @@ void CodeGenFunction::EmitDeclMetadata()
>> > > llvm::Value *Addr = I.second;
>> > > if (auto *Alloca = dyn_cast<llvm::AllocaInst>(Addr)) {
>> > > llvm::Value *DAddr = GetPointerConstant(getLLVMContext(), D);
>> > > - Alloca->setMetadata(DeclPtrKind, llvm::MDNode::get(Context,
>> DAddr));
>> > > + Alloca->setMetadata(
>> > > + DeclPtrKind, llvm::MDNode::get(
>> > > + Context,
>> llvm::ValueAsMetadata::getConstant(DAddr)));
>> > > } else if (auto *GV = dyn_cast<llvm::GlobalValue>(Addr)) {
>> > > GlobalDecl GD = GlobalDecl(cast<VarDecl>(D));
>> > > EmitGlobalDeclMetadata(CGM, GlobalMetadata, GD, GV);
>> > > @@ -3476,9 +3475,7 @@ void CodeGenModule::EmitVersionIdentMeta
>> > > std::string Version = getClangFullVersion();
>> > > llvm::LLVMContext &Ctx = TheModule.getContext();
>> > >
>> > > - llvm::Value *IdentNode[] = {
>> > > - llvm::MDString::get(Ctx, Version)
>> > > - };
>> > > + llvm::Metadata *IdentNode[] = {llvm::MDString::get(Ctx, Version)};
>> > > IdentMetadata->addOperand(llvm::MDNode::get(Ctx, IdentNode));
>> > > }
>> > >
>> > > @@ -3506,9 +3503,8 @@ void CodeGenModule::EmitCoverageFile() {
>> > > llvm::MDString::get(Ctx, getCodeGenOpts().CoverageFile);
>> > > for (int i = 0, e = CUNode->getNumOperands(); i != e; ++i) {
>> > > llvm::MDNode *CU = CUNode->getOperand(i);
>> > > - llvm::Value *node[] = { CoverageFile, CU };
>> > > - llvm::MDNode *N = llvm::MDNode::get(Ctx, node);
>> > > - GCov->addOperand(N);
>> > > + llvm::Metadata *Elts[] = {CoverageFile, CU};
>> > > + GCov->addOperand(llvm::MDNode::get(Ctx, Elts));
>> > > }
>> > > }
>> > > }
>> > >
>> > > Modified: cfe/trunk/lib/CodeGen/CodeGenModule.h
>> > > URL:
>> http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/CodeGen/CodeGenModule.h?rev=223803&r1=223802&r2=223803&view=diff
>> > >
>> ==============================================================================
>> > > --- cfe/trunk/lib/CodeGen/CodeGenModule.h (original)
>> > > +++ cfe/trunk/lib/CodeGen/CodeGenModule.h Tue Dec 9 12:39:32 2014
>> > > @@ -421,7 +421,7 @@ class CodeGenModule : public CodeGenType
>> > > llvm::SetVector<clang::Module *> ImportedModules;
>> > >
>> > > /// \brief A vector of metadata strings.
>> > > - SmallVector<llvm::Value *, 16> LinkerOptionsMetadata;
>> > > + SmallVector<llvm::Metadata *, 16> LinkerOptionsMetadata;
>> > >
>> > > /// @name Cache for Objective-C runtime types
>> > > /// @{
>> > > @@ -591,9 +591,7 @@ public:
>> > >
>> > > llvm::MDNode *getNoObjCARCExceptionsMetadata() {
>> > > if (!NoObjCARCExceptionsMetadata)
>> > > - NoObjCARCExceptionsMetadata =
>> > > - llvm::MDNode::get(getLLVMContext(),
>> > > - SmallVector<llvm::Value*,1>());
>> > > + NoObjCARCExceptionsMetadata =
>> llvm::MDNode::get(getLLVMContext(), None);
>> > > return NoObjCARCExceptionsMetadata;
>> > > }
>> > >
>> > >
>> > > Modified: cfe/trunk/lib/CodeGen/SanitizerMetadata.cpp
>> > > URL:
>> <http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/CodeGen/SanitizerMetadata.cpp?rev=223803&r1=223802&r2=223803&view=diff>
>>
>>
>
> --
> Saleem Abdulrasool
> compnerd (at) compnerd (dot) org
>
--
Saleem Abdulrasool
compnerd (at) compnerd (dot) org
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