r189600 - Debug Info: generate a unique identifier for C++ struct, class, union, and enum.

David Blaikie dblaikie at gmail.com
Thu Aug 29 13:39:14 PDT 2013


On Thu, Aug 29, 2013 at 1:08 PM, Manman Ren <manman.ren at gmail.com> wrote:
>
>
>
> On Thu, Aug 29, 2013 at 12:56 PM, David Blaikie <dblaikie at gmail.com> wrote:
>>
>> On Thu, Aug 29, 2013 at 11:51 AM, Manman Ren <manman.ren at gmail.com> wrote:
>> > Author: mren
>> > Date: Thu Aug 29 13:51:51 2013
>> > New Revision: 189600
>> >
>> > URL: http://llvm.org/viewvc/llvm-project?rev=189600&view=rev
>> > Log:
>> > Debug Info: generate a unique identifier for C++ struct, class, union,
>> > and enum.
>>
>> We've generally been pre-commit reviewing this, so I'm a little
>> surprised to see this committed outright - but I'm OK reviewing this
>> in post-commit (Eric may have other ideas).
>
>
> In one of your previous replies, you said
> With test case updates or the change to use null values for empty
> strings, please go ahead and commit this patch.
>
> I may have misunderstood the patch you meant there.

Yep, looking back at that thread the thing we were describing was
"adding unique identifiers from Clang" - I hadn't considered that
discussion or patch to include anything about retaining the types.

>> > We use CXX mangler to generate unique identifier for external C++
>> > struct,
>> > union, class and enum. Types with unique identifier are added to
>> > RetainedTypes
>> > to make sure they are treated as used even when all uses are replaced
>> > with
>> > the identifiers.
>> >
>> > A single type can be added to RetainedTypes multiple times. For example,
>> > both
>> > createForwardDecl and createLimitedType can add the same type to
>> > RetainedTypes.
>> > A set is used to avoid duplication when updating AllRetainTypes in
>> > DIBuilder.
>> >
>> > Testing cases are updated to reflect the unique identifier generated for
>> > types.
>> > The order of MDNodes is changed because of retained types and testing
>> > cases
>> > are updated accordingly.
>> >
>> > Testing case debug-info-uuid.cpp now emits error with Itanium mangler,
>> > since
>> > uuid is not yet handled in Itanium mangler.
>>
>> That's fine - I don't see any reason to do the work to make that
>> happen, so I wouldn't worry about that if I were you.
>>
>> > We choose to update RetainedTypes in clang, then at finalize(), we
>> > update
>> > AllRetainTypes in DIBuilder. The other choice is to update
>> > AllRetainTypes
>> > in DIBuilder when creating a DICompositeType with unique identifier.
>> > This
>> > option requires using ValueHandle for AllRetainTypes in DIBuilder since
>> > the created DICompositeType can be modified later on by
>> > setContainingType etc.
>>
>> I'd probably have rather seen this change made first so we could then
>> make DIBuilder retain any type with a specified unique identifier
>> automatically. Having the caller do this seems rather error-prone.
>
>
> That (updating RetainedTypes in clang) was in the original patch I sent out.

The original originals? I never got around to reading through those, sorry.

> Because of the
> need to use ValueHandle for AllRetainTypes if we go with the DIBuilder
> route, I thought we agreed
> on updating in clang. There may be miscommunication somewhere, if you think
> I should revert his patch
> and continue discussions, let me know.
>
>>
>>
>> >
>> > Modified:
>> >     cfe/trunk/lib/CodeGen/CGDebugInfo.cpp
>> >     cfe/trunk/test/CodeGenCXX/debug-info-artificial-arg.cpp
>> >     cfe/trunk/test/CodeGenCXX/debug-info-class.cpp
>> >     cfe/trunk/test/CodeGenCXX/debug-info-decl-nested.cpp
>> >     cfe/trunk/test/CodeGenCXX/debug-info-enum.cpp
>> >     cfe/trunk/test/CodeGenCXX/debug-info-method.cpp
>> >     cfe/trunk/test/CodeGenCXX/debug-info-namespace.cpp
>> >     cfe/trunk/test/CodeGenCXX/debug-info-static-member.cpp
>> >     cfe/trunk/test/CodeGenCXX/debug-info-template-limit.cpp
>> >     cfe/trunk/test/CodeGenCXX/debug-info-template-member.cpp
>> >     cfe/trunk/test/CodeGenCXX/debug-info-template-quals.cpp
>> >     cfe/trunk/test/CodeGenCXX/debug-info-template.cpp
>> >     cfe/trunk/test/CodeGenCXX/debug-info-union-template.cpp
>> >     cfe/trunk/test/CodeGenCXX/debug-info-uuid.cpp
>> >     cfe/trunk/test/CodeGenCXX/debug-info.cpp
>> >
>> > Modified: cfe/trunk/lib/CodeGen/CGDebugInfo.cpp
>> > URL:
>> > http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/CodeGen/CGDebugInfo.cpp?rev=189600&r1=189599&r2=189600&view=diff
>> >
>> > ==============================================================================
>> > --- cfe/trunk/lib/CodeGen/CGDebugInfo.cpp (original)
>> > +++ cfe/trunk/lib/CodeGen/CGDebugInfo.cpp Thu Aug 29 13:51:51 2013
>> > @@ -599,6 +599,29 @@ llvm::DIType CGDebugInfo::CreateType(con
>> >                                 Ty->getPointeeType(), Unit);
>> >  }
>> >
>> > +/// In C++ mode, types have linkage, so we can rely on the ODR and
>> > +/// on their mangled names, if they're external. Otherwise, we append
>> > +/// the CU's directory and file name.
>>
>> This comment seems inconsistent with the implementation. The
>> "otherwise we append the CU's directory and file name" isn't being
>> done (nor should it be - I agree with the implementation, just not the
>> comment)
>
> You are right, I need to update the comments here.
>>
>>
>> > +static void getUniqueTagTypeName(const TagType *Ty, CodeGenModule &CGM,
>> > +                                 llvm::DICompileUnit TheCU,
>> > +                                 SmallString<256> &FullName) {
>>
>> I'd probably just return a SmallString from the function & rely on
>> NRVO. Return an empty string on 'failure' paths.
>
> That is reasonable.
>>
>>
>> > +  // FIXME: ODR should apply to ObjC++ exactly the same wasy it does to
>> > C++.
>> > +  // For now, only apply ODR with C++.
>> > +  const TagDecl *TD = Ty->getDecl();
>> > +  if (TheCU.getLanguage() != llvm::dwarf::DW_LANG_C_plus_plus ||
>> > +      !TD->isExternallyVisible())
>> > +    return;
>> > +  // Microsoft Mangler does not have support for mangleCXXRTTIName yet.
>> > +  if (CGM.getTarget().getCXXABI().isMicrosoft())
>> > +    return;
>> > +
>> > +  // TODO: This is using the RTTI name. Is there a better way to get
>> > +  // a unique string for a type?
>> > +  llvm::raw_svector_ostream Out(FullName);
>> > +  CGM.getCXXABI().getMangleContext().mangleCXXRTTIName(QualType(Ty, 0),
>> > Out);
>> > +  Out.flush();
>> > +}
>> > +
>> >  // Creates a forward declaration for a RecordDecl in the given context.
>> >  llvm::DICompositeType
>> >  CGDebugInfo::getOrCreateRecordFwdDecl(const RecordType *Ty,
>> > @@ -621,7 +644,14 @@ CGDebugInfo::getOrCreateRecordFwdDecl(co
>> >    }
>> >
>> >    // Create the type.
>> > -  return DBuilder.createForwardDecl(Tag, RDName, Ctx, DefUnit, Line);
>> > +  SmallString<256> FullName;
>> > +  getUniqueTagTypeName(Ty, CGM, TheCU, FullName);
>> > +  if (!FullName.empty()) {
>> > +    QualType QTy(Ty, 0);
>> > +    RetainedTypes.push_back(QTy.getAsOpaquePtr());
>> > +  }
>>
>> All these "if (!empty()) { retain }" are kind of annoying/repetitive &
>> would go away if we handled this in DIBuilder.
>>
>> > +  return DBuilder.createForwardDecl(Tag, RDName, Ctx, DefUnit, Line, 0,
>> > 0, 0,
>> > +                                    FullName.str());
>> >  }
>> >
>> >  // Walk up the context chain and create forward decls for record decls,
>> > @@ -1884,6 +1914,13 @@ llvm::DIType CGDebugInfo::CreateEnumType
>> >      Align = CGM.getContext().getTypeAlign(ED->getTypeForDecl());
>> >    }
>> >
>> > +  SmallString<256> FullName;
>> > +  getUniqueTagTypeName(Ty, CGM, TheCU, FullName);
>> > +  if (!FullName.empty()) {
>> > +    QualType QTy(Ty, 0);
>> > +    RetainedTypes.push_back(QTy.getAsOpaquePtr());
>> > +  }
>> > +
>> >    // If this is just a forward declaration, construct an appropriately
>> >    // marked node and just return it.
>> >    if (!ED->getDefinition()) {
>> > @@ -1894,7 +1931,7 @@ llvm::DIType CGDebugInfo::CreateEnumType
>> >      StringRef EDName = ED->getName();
>> >      return
>> > DBuilder.createForwardDecl(llvm::dwarf::DW_TAG_enumeration_type,
>> >                                        EDName, EDContext, DefUnit, Line,
>> > 0,
>> > -                                      Size, Align);
>> > +                                      Size, Align, FullName.str());
>>
>> You shouldn't need to call "str()" here (& in every other call you've
>> updated). A SmallString should be implicitly convertible to StringRef.
>
> Got it, I will double check and update accordingly.
>
> Thanks,
> Manman
>>
>>
>> >    }
>> >
>> >    // Create DIEnumerator elements for each enumerator.
>> > @@ -1920,7 +1957,7 @@ llvm::DIType CGDebugInfo::CreateEnumType
>> >    llvm::DIType DbgTy =
>> >      DBuilder.createEnumerationType(EnumContext, ED->getName(), DefUnit,
>> > Line,
>> >                                     Size, Align, EltArray,
>> > -                                   ClassTy);
>> > +                                   ClassTy, FullName.str());
>> >    return DbgTy;
>> >  }
>> >
>> > @@ -2270,20 +2307,28 @@ llvm::DICompositeType CGDebugInfo::Creat
>> >    uint64_t Align = CGM.getContext().getTypeAlign(Ty);
>> >    llvm::DICompositeType RealDecl;
>> >
>> > +  SmallString<256> FullName;
>> > +  getUniqueTagTypeName(Ty, CGM, TheCU, FullName);
>> > +  if (!FullName.empty()) {
>> > +    QualType QTy(Ty, 0);
>> > +    RetainedTypes.push_back(QTy.getAsOpaquePtr());
>> > +  }
>> > +
>> >    if (RD->isUnion())
>> >      RealDecl = DBuilder.createUnionType(RDContext, RDName, DefUnit,
>> > Line,
>> > -                                        Size, Align, 0,
>> > llvm::DIArray());
>> > +                                        Size, Align, 0,
>> > llvm::DIArray(), 0,
>> > +                                        FullName.str());
>> >    else if (RD->isClass()) {
>> >      // FIXME: This could be a struct type giving a default visibility
>> > different
>> >      // than C++ class type, but needs llvm metadata changes first.
>> >      RealDecl = DBuilder.createClassType(RDContext, RDName, DefUnit,
>> > Line,
>> >                                          Size, Align, 0, 0,
>> > llvm::DIType(),
>> >                                          llvm::DIArray(),
>> > llvm::DIType(),
>> > -                                        llvm::DIArray());
>> > +                                        llvm::DIArray(),
>> > FullName.str());
>> >    } else
>> >      RealDecl = DBuilder.createStructType(RDContext, RDName, DefUnit,
>> > Line,
>> >                                           Size, Align, 0,
>> > llvm::DIType(),
>> > -                                         llvm::DIArray());
>> > +                                         llvm::DIArray(), 0, 0,
>> > FullName.str());
>> >
>> >    RegionMap[Ty->getDecl()] = llvm::WeakVH(RealDecl);
>> >    TypeCache[QualType(Ty, 0).getAsOpaquePtr()] = RealDecl;
>> > @@ -3290,9 +3335,17 @@ void CGDebugInfo::finalize() {
>> >
>> >    // We keep our own list of retained types, because we need to look
>> >    // up the final type in the type cache.
>> > +  // Both createForwardDecl and createLimitedType can add the same type
>> > to
>> > +  // RetainedTypes. A set is used to avoid duplication.
>> > +  llvm::SmallPtrSet<void *, 16> RetainSet;
>> >    for (std::vector<void *>::const_iterator RI = RetainedTypes.begin(),
>> >           RE = RetainedTypes.end(); RI != RE; ++RI)
>> > -
>> > DBuilder.retainType(llvm::DIType(cast<llvm::MDNode>(TypeCache[*RI])));
>> > +    if (RetainSet.insert(*RI)) {
>> > +      llvm::DenseMap<void *, llvm::WeakVH>::iterator it =
>> > +        TypeCache.find(*RI);
>> > +      if (it != TypeCache.end() && it->second)
>> > +
>> > DBuilder.retainType(llvm::DIType(cast<llvm::MDNode>(it->second)));
>> > +    }
>> >
>> >    DBuilder.finalize();
>> >  }
>> >
>> > Modified: cfe/trunk/test/CodeGenCXX/debug-info-artificial-arg.cpp
>> > URL:
>> > http://llvm.org/viewvc/llvm-project/cfe/trunk/test/CodeGenCXX/debug-info-artificial-arg.cpp?rev=189600&r1=189599&r2=189600&view=diff
>> >
>> > ==============================================================================
>> > --- cfe/trunk/test/CodeGenCXX/debug-info-artificial-arg.cpp (original)
>> > +++ cfe/trunk/test/CodeGenCXX/debug-info-artificial-arg.cpp Thu Aug 29
>> > 13:51:51 2013
>> > @@ -22,8 +22,8 @@ int main(int argc, char **argv) {
>> >    A reallyA (500);
>> >  }
>> >
>> > -// CHECK: ![[ARTARG:.*]] = {{.*}} ; [ DW_TAG_pointer_type ] [line 0,
>> > size 64, align 64, offset 0] [artificial] [from A]
>> >  // CHECK: ![[CLASSTYPE:.*]] = {{.*}} ; [ DW_TAG_class_type ] [A]
>> > +// CHECK: ![[ARTARG:.*]] = {{.*}} ; [ DW_TAG_pointer_type ] [line 0,
>> > size 64, align 64, offset 0] [artificial] [from A]
>> >  // CHECK: metadata ![[CLASSTYPE]], {{.*}} ; [ DW_TAG_subprogram ] [line
>> > 12] [A]
>> >  // CHECK: metadata [[FUNCTYPE:![0-9]*]], i32 0, null, null, null} ; [
>> > DW_TAG_subroutine_type ]
>> >  // CHECK: [[FUNCTYPE]] = metadata !{null, metadata ![[ARTARG]],
>> > metadata !{{.*}}, metadata !{{.*}}}
>> >
>> > Modified: cfe/trunk/test/CodeGenCXX/debug-info-class.cpp
>> > URL:
>> > http://llvm.org/viewvc/llvm-project/cfe/trunk/test/CodeGenCXX/debug-info-class.cpp?rev=189600&r1=189599&r2=189600&view=diff
>> >
>> > ==============================================================================
>> > --- cfe/trunk/test/CodeGenCXX/debug-info-class.cpp (original)
>> > +++ cfe/trunk/test/CodeGenCXX/debug-info-class.cpp Thu Aug 29 13:51:51
>> > 2013
>> > @@ -96,33 +96,32 @@ int main(int argc, char **argv) {
>> >  // CHECK: DW_TAG_class_type ] [B]
>> >  // CHECK: metadata !"_vptr$B", {{.*}}, i32 64, metadata !{{.*}}} ; [
>> > DW_TAG_member ]
>> >
>> > -// CHECK: [[C:![0-9]*]] = {{.*}} metadata [[C_MEM:![0-9]*]], i32 0,
>> > metadata [[C]], null, null} ; [ DW_TAG_structure_type ] [C] {{.*}} [def]
>> > +// CHECK: [[C:![0-9]*]] = {{.*}} metadata [[C_MEM:![0-9]*]], i32 0,
>> > metadata [[C]], null, metadata !"_ZTS1C"} ; [ DW_TAG_structure_type ] [C]
>> > {{.*}} [def]
>> >  // CHECK: [[C_MEM]] = metadata !{metadata [[C_VPTR:![0-9]*]], metadata
>> > [[C_S:![0-9]*]], metadata [[C_DTOR:![0-9]*]]}
>> >  // CHECK: [[C_VPTR]] = {{.*}} ; [ DW_TAG_member ] [_vptr$C] {{.*}}
>> > [artificial]
>> >  // CHECK: [[C_S]] = {{.*}} ; [ DW_TAG_member ] [s] {{.*}} [static]
>> > [from int]
>> >  // CHECK: [[C_DTOR]] = {{.*}} ; [ DW_TAG_subprogram ] {{.*}} [~C]
>> >
>> > -// CHECK: ; [ DW_TAG_structure_type ] [A]
>> > -// CHECK: HdrSize
>> > -// CHECK: metadata [[D_MEM:![0-9]*]], i32 0, null, null, null} ; [
>> > DW_TAG_structure_type ] [D] {{.*}} [decl]
>> > +// CHECK: ; [ DW_TAG_structure_type ] [I] {{.*}} [def]
>> > +// CHECK: metadata [[D_MEM:![0-9]*]], i32 0, null, null, metadata
>> > !"_ZTS1D"} ; [ DW_TAG_structure_type ] [D] {{.*}} [decl]
>> >  // CHECK: [[D_MEM]] = metadata !{metadata [[D_FUNC:![0-9]*]]}
>> >  // CHECK: [[D_FUNC]] = {{.*}} ; [ DW_TAG_subprogram ] {{.*}} [func]
>> > -
>> > -// CHECK: ; [ DW_TAG_structure_type ] [I] {{.*}} [def]
>> > -
>> > -// CHECK: [[F_I_DEF:![0-9]*]] = {{.*}}, metadata [[F_I:![0-9]*]]} ; [
>> > DW_TAG_variable ] [i]
>> > +// CHECK: null, i32 0, null, null, metadata !"_ZTS1E"} ; [
>> > DW_TAG_structure_type ] [E] {{.*}} [decl]
>> > +// CHECK: [[F:![0-9]*]] = {{.*}} metadata [[F_MEM:![0-9]*]], i32 0,
>> > null, null, metadata !"_ZTS1F"} ; [ DW_TAG_structure_type ] [F] {{.*}} [def]
>> > +// CHECK: [[F_MEM]] = metadata !{metadata [[F_I:![0-9]*]]}
>> >  // CHECK: [[F_I]] = {{.*}} ; [ DW_TAG_member ] [i]
>> > -// CHECK: [[F:![0-9]*]] = {{.*}} metadata [[F_MEM:![0-9]*]], i32 0,
>> > null, null, null} ; [ DW_TAG_structure_type ] [F] {{.*}} [def]
>> > -// CHECK: [[F_MEM]] = metadata !{metadata [[F_I]]}
>> >
>> > -// CHECK: null, i32 0, null, null, null} ; [ DW_TAG_structure_type ]
>> > [E] {{.*}} [decl]
>> > -
>> > -// CHECK: metadata [[G_INNER_MEM:![0-9]*]], i32 0, null, null, null} ;
>> > [ DW_TAG_structure_type ] [inner] [line 50, {{.*}} [def]
>> >  // Context chains (in Clang -flimit-debug-info and in GCC generally)
>> > contain
>> >  // definitions without members (& without a vbase 'containing type'):
>> > -// CHECK: null, i32 0, null, null, null} ; [ DW_TAG_structure_type ]
>> > [G] {{.*}} [def]
>> > +// CHECK: null, i32 0, null, null, metadata !"_ZTS1G"} ; [
>> > DW_TAG_structure_type ] [G] {{.*}} [def]
>> > +// CHECK: metadata [[G_INNER_MEM:![0-9]*]], i32 0, null, null, metadata
>> > !"_ZTSN1G5innerE"} ; [ DW_TAG_structure_type ] [inner] [line 50, {{.*}}
>> > [def]
>> >  // CHECK: [[G_INNER_MEM]] = metadata !{metadata [[G_INNER_I:![0-9]*]]}
>> >  // CHECK: [[G_INNER_I]] = {{.*}} ; [ DW_TAG_member ] [j] {{.*}} [from
>> > int]
>> >
>> > +// CHECK: ; [ DW_TAG_structure_type ] [A]
>> > +// CHECK: HdrSize
>> > +
>> > +// CHECK: [[F_I_DEF:![0-9]*]] = {{.*}}, metadata [[F_I]]} ; [
>> > DW_TAG_variable ] [i]
>> > +
>> >  // CHECK: ![[EXCEPTLOC]] = metadata !{i32 84,
>> >  // CHECK: ![[RETLOC]] = metadata !{i32 83,
>> >
>> > Modified: cfe/trunk/test/CodeGenCXX/debug-info-decl-nested.cpp
>> > URL:
>> > http://llvm.org/viewvc/llvm-project/cfe/trunk/test/CodeGenCXX/debug-info-decl-nested.cpp?rev=189600&r1=189599&r2=189600&view=diff
>> >
>> > ==============================================================================
>> > --- cfe/trunk/test/CodeGenCXX/debug-info-decl-nested.cpp (original)
>> > +++ cfe/trunk/test/CodeGenCXX/debug-info-decl-nested.cpp Thu Aug 29
>> > 13:51:51 2013
>> > @@ -35,11 +35,11 @@ class OuterClass1
>> >    public:
>> >      InnerClass1();
>> >    } theInnerClass1;
>> > -// CHECK1: metadata {{.*}}, metadata ![[DECL:[0-9]+]], metadata {{.*}},
>> > i32 [[@LINE+5]]} ; [ DW_TAG_subprogram ] [line [[@LINE+5]]] [def] [Bar]
>> > +// CHECK1: [[DECL:[0-9]+]] = {{.*}} ; [ DW_TAG_subprogram ] [line
>> > [[@LINE+2]]] [private] [Bar]
>> > +// CHECK1: metadata {{.*}}, metadata ![[DECL]], metadata {{.*}}, i32
>> > [[@LINE+4]]} ; [ DW_TAG_subprogram ] [line [[@LINE+4]]] [def] [Bar]
>> >    void Bar(const Foo1 *);
>> >  };
>> >  OuterClass1::InnerClass1 OuterClass1::theInnerClass1;
>> > -// CHECK1: [[DECL]] = {{.*}} ; [ DW_TAG_subprogram ] [line [[@LINE-3]]]
>> > [private] [Bar]
>> >  void OuterClass1::Bar(const Foo1 *meta) { }
>> >
>> >
>> >
>> > Modified: cfe/trunk/test/CodeGenCXX/debug-info-enum.cpp
>> > URL:
>> > http://llvm.org/viewvc/llvm-project/cfe/trunk/test/CodeGenCXX/debug-info-enum.cpp?rev=189600&r1=189599&r2=189600&view=diff
>> >
>> > ==============================================================================
>> > --- cfe/trunk/test/CodeGenCXX/debug-info-enum.cpp (original)
>> > +++ cfe/trunk/test/CodeGenCXX/debug-info-enum.cpp Thu Aug 29 13:51:51
>> > 2013
>> > @@ -4,7 +4,7 @@
>> >  // CHECK: [[ENUMS]] = metadata !{metadata [[E1:![0-9]*]], metadata
>> > [[E2:![0-9]*]], metadata [[E3:![0-9]*]]}
>> >
>> >  namespace test1 {
>> > -// CHECK: [[E1]] = metadata !{i32 {{[^,]*}}, {{[^,]*}}, metadata
>> > [[TEST1:![0-9]*]], {{.*}}, metadata [[TEST1_ENUMS:![0-9]*]], {{[^,]*}},
>> > null, null, null} ; [ DW_TAG_enumeration_type ] [e]
>> > +// CHECK: [[E1]] = metadata !{i32 {{[^,]*}}, {{[^,]*}}, metadata
>> > [[TEST1:![0-9]*]], {{.*}}, metadata [[TEST1_ENUMS:![0-9]*]], {{[^,]*}},
>> > null, null, metadata !"_ZTSN5test11eE"} ; [ DW_TAG_enumeration_type ] [e]
>> >  // CHECK: [[TEST1]] = {{.*}} ; [ DW_TAG_namespace ] [test1]
>> >  // CHECK: [[TEST1_ENUMS]] = metadata !{metadata [[TEST1_E:![0-9]*]]}
>> >  // CHECK: [[TEST1_E]] = {{.*}}, metadata !"E", i64 0} ; [
>> > DW_TAG_enumerator ] [E :: 0]
>> > @@ -16,7 +16,7 @@ void foo() {
>> >
>> >  namespace test2 {
>> >  // rdar://8195980
>> > -// CHECK: [[E2]] = metadata !{i32 {{[^,]*}}, {{[^,]*}}, metadata
>> > [[TEST2:![0-9]*]], {{.*}}, metadata [[TEST1_ENUMS]], {{[^,]*}}, null, null,
>> > null} ; [ DW_TAG_enumeration_type ] [e]
>> > +// CHECK: [[E2]] = metadata !{i32 {{[^,]*}}, {{[^,]*}}, metadata
>> > [[TEST2:![0-9]*]], {{.*}}, metadata [[TEST1_ENUMS]], {{[^,]*}}, null, null,
>> > metadata !"_ZTSN5test21eE"} ; [ DW_TAG_enumeration_type ] [e]
>> >  // CHECK: [[TEST2]] = {{.*}} ; [ DW_TAG_namespace ] [test2]
>> >  enum e { E };
>> >  bool func(int i) {
>> > @@ -25,7 +25,7 @@ bool func(int i) {
>> >  }
>> >
>> >  namespace test3 {
>> > -// CHECK: [[E3]] = metadata !{i32 {{[^,]*}}, {{[^,]*}}, metadata
>> > [[TEST3:![0-9]*]], {{.*}}, metadata [[TEST3_ENUMS:![0-9]*]], {{[^,]*}},
>> > null, null, null} ; [ DW_TAG_enumeration_type ] [e]
>> > +// CHECK: [[E3]] = metadata !{i32 {{[^,]*}}, {{[^,]*}}, metadata
>> > [[TEST3:![0-9]*]], {{.*}}, metadata [[TEST3_ENUMS:![0-9]*]], {{[^,]*}},
>> > null, null, metadata !"_ZTSN5test31eE"} ; [ DW_TAG_enumeration_type ] [e]
>> >  // CHECK: [[TEST3]] = {{.*}} ; [ DW_TAG_namespace ] [test3]
>> >  // CHECK: [[TEST3_ENUMS]] = metadata !{metadata [[TEST3_E:![0-9]*]]}
>> >  // CHECK: [[TEST3_E]] = {{.*}}, metadata !"E", i64 -1} ; [
>> > DW_TAG_enumerator ] [E :: -1]
>> >
>> > Modified: cfe/trunk/test/CodeGenCXX/debug-info-method.cpp
>> > URL:
>> > http://llvm.org/viewvc/llvm-project/cfe/trunk/test/CodeGenCXX/debug-info-method.cpp?rev=189600&r1=189599&r2=189600&view=diff
>> >
>> > ==============================================================================
>> > --- cfe/trunk/test/CodeGenCXX/debug-info-method.cpp (original)
>> > +++ cfe/trunk/test/CodeGenCXX/debug-info-method.cpp Thu Aug 29 13:51:51
>> > 2013
>> > @@ -1,6 +1,7 @@
>> >  // RUN: %clang_cc1 -emit-llvm -std=c++11 -g %s -o - | FileCheck %s
>> > -// CHECK: ![[THISTYPE:[0-9]+]] = {{.*}} ; [ DW_TAG_pointer_type ]
>> > {{.*}} [artificial] [from A]
>> > +// CHECK: metadata !"_ZTS1A"} ; [ DW_TAG_class_type ] [A]
>> >  // CHECK: metadata !"_ZN1A3fooEiS_3$_0", {{.*}} [protected]
>> > +// CHECK: ![[THISTYPE:[0-9]+]] = {{.*}} ; [ DW_TAG_pointer_type ]
>> > {{.*}} [artificial] [from A]
>> >  // CHECK: DW_TAG_ptr_to_member_type
>> >  // CHECK: {{.*}}metadata ![[MEMFUNTYPE:[0-9]+]], metadata !{{.*}}} ; [
>> > DW_TAG_ptr_to_member_type ] {{.*}} [from ]
>> >  // CHECK: ![[MEMFUNTYPE]] = {{.*}}metadata ![[MEMFUNARGS:[0-9]+]], i32
>> > 0, null, null, null} ; [ DW_TAG_subroutine_type ] {{.*}} [from ]
>> >
>> > Modified: cfe/trunk/test/CodeGenCXX/debug-info-namespace.cpp
>> > URL:
>> > http://llvm.org/viewvc/llvm-project/cfe/trunk/test/CodeGenCXX/debug-info-namespace.cpp?rev=189600&r1=189599&r2=189600&view=diff
>> >
>> > ==============================================================================
>> > --- cfe/trunk/test/CodeGenCXX/debug-info-namespace.cpp (original)
>> > +++ cfe/trunk/test/CodeGenCXX/debug-info-namespace.cpp Thu Aug 29
>> > 13:51:51 2013
>> > @@ -41,9 +41,11 @@ int func(bool b) {
>> >
>> >  // CHECK: [[CU:![0-9]*]] = {{.*}}[[MODULES:![0-9]*]], metadata !""} ; [
>> > DW_TAG_compile_unit ]
>> >  // CHECK: [[FILE:![0-9]*]] {{.*}}debug-info-namespace.cpp"
>> > +// CHECK: [[FOO:![0-9]*]] {{.*}} ; [ DW_TAG_structure_type ] [foo]
>> > [line 5, size 0, align 0, offset 0] [decl] [from ]
>> >  // CHECK: [[FOOCPP:![0-9]*]] = metadata !{metadata !"foo.cpp", {{.*}}
>> >  // CHECK: [[NS:![0-9]*]] = {{.*}}, metadata [[FILE2:![0-9]*]], metadata
>> > [[CTXT:![0-9]*]], {{.*}} ; [ DW_TAG_namespace ] [B] [line 1]
>> >  // CHECK: [[CTXT]] = {{.*}}, metadata [[FILE]], null, {{.*}} ; [
>> > DW_TAG_namespace ] [A] [line 5]
>> > +// CHECK: [[BAR:![0-9]*]] {{.*}} ; [ DW_TAG_structure_type ] [bar]
>> > [line 6, {{.*}}] [decl] [from ]
>> >  // CHECK: [[F1:![0-9]*]] {{.*}} ; [ DW_TAG_subprogram ] [line 4] [def]
>> > [f1]
>> >  // CHECK: [[FUNC:![0-9]*]] {{.*}} ; [ DW_TAG_subprogram ] {{.*}} [def]
>> > [func]
>> >  // CHECK: [[FILE2]]} ; [ DW_TAG_file_type ] [{{.*}}foo.cpp]
>> > @@ -57,9 +59,7 @@ int func(bool b) {
>> >  // CHECK: [[LEX1]] = metadata !{i32 {{[0-9]*}}, metadata [[FILE2]],
>> > metadata [[FUNC]], i32 {{[0-9]*}}, i32 0, i32 {{.*}}} ; [
>> > DW_TAG_lexical_block ]
>> >  // CHECK: [[M5]] = metadata !{i32 {{[0-9]*}}, metadata [[FUNC]],
>> > metadata [[CTXT]], i32 {{[0-9]*}}} ; [ DW_TAG_imported_module ]
>> >  // CHECK: [[M6]] = metadata !{i32 {{[0-9]*}}, metadata [[FUNC]],
>> > metadata [[FOO:![0-9]*]], i32 23} ; [ DW_TAG_imported_declaration ]
>> > -// CHECK: [[FOO]] {{.*}} ; [ DW_TAG_structure_type ] [foo] [line 5,
>> > size 0, align 0, offset 0] [decl] [from ]
>> >  // CHECK: [[M7]] = metadata !{i32 {{[0-9]*}}, metadata [[FUNC]],
>> > metadata [[BAR:![0-9]*]], i32 {{[0-9]*}}} ; [ DW_TAG_imported_declaration ]
>> > -// CHECK: [[BAR]] {{.*}} ; [ DW_TAG_structure_type ] [bar] [line 6,
>> > {{.*}}] [decl] [from ]
>> >  // CHECK: [[M8]] = metadata !{i32 {{[0-9]*}}, metadata [[FUNC]],
>> > metadata [[F1]], i32 {{[0-9]*}}} ; [ DW_TAG_imported_declaration ]
>> >  // CHECK: [[M9]] = metadata !{i32 {{[0-9]*}}, metadata [[FUNC]],
>> > metadata [[I]], i32 {{[0-9]*}}} ; [ DW_TAG_imported_declaration ]
>> >  // CHECK: [[M10]] = metadata !{i32 {{[0-9]*}}, metadata [[FUNC]],
>> > metadata [[BAZ:![0-9]*]], i32 {{[0-9]*}}} ; [ DW_TAG_imported_declaration ]
>> >
>> > Modified: cfe/trunk/test/CodeGenCXX/debug-info-static-member.cpp
>> > URL:
>> > http://llvm.org/viewvc/llvm-project/cfe/trunk/test/CodeGenCXX/debug-info-static-member.cpp?rev=189600&r1=189599&r2=189600&view=diff
>> >
>> > ==============================================================================
>> > --- cfe/trunk/test/CodeGenCXX/debug-info-static-member.cpp (original)
>> > +++ cfe/trunk/test/CodeGenCXX/debug-info-static-member.cpp Thu Aug 29
>> > 13:51:51 2013
>> > @@ -33,13 +33,15 @@ int main()
>> >  // why the definition of "a" comes before the declarations while
>> >  // "b" and "c" come after.
>> >
>> > -// CHECK: metadata !"a", {{.*}} @_ZN1C1aE, metadata ![[DECL_A:[0-9]+]]}
>> > ; [ DW_TAG_variable ] [a] {{.*}} [def]
>> > -// CHECK: ![[DECL_A]] = metadata {{.*}} [ DW_TAG_member ] [a] [line
>> > {{.*}}, size 0, align 0, offset 0] [private] [static]
>> > +// CHECK: metadata !"_ZTS1X"} ; [ DW_TAG_enumeration_type ] [X]
>> > +// CHECK: metadata !"_ZTS1C"} ; [ DW_TAG_class_type ] [C]
>> > +// CHECK: ![[DECL_A:[0-9]+]] = metadata {{.*}} [ DW_TAG_member ] [a]
>> > [line {{.*}}, size 0, align 0, offset 0] [private] [static]
>> >  // CHECK: metadata !"const_a", {{.*}}, i1 true} ; [ DW_TAG_member ]
>> > [const_a] [line {{.*}}, size 0, align 0, offset 0] [private] [static]
>> >  // CHECK: ![[DECL_B:[0-9]+]] {{.*}} metadata !"b", {{.*}} [
>> > DW_TAG_member ] [b] [line {{.*}}, size 0, align 0, offset 0] [protected]
>> > [static]
>> >  // CHECK: metadata !"const_b", {{.*}}, float 0x{{.*}}} ; [
>> > DW_TAG_member ] [const_b] [line {{.*}}, size 0, align 0, offset 0]
>> > [protected] [static]
>> >  // CHECK: ![[DECL_C:[0-9]+]] {{.*}} metadata !"c", {{.*}} [
>> > DW_TAG_member ] [c] [line {{.*}}, size 0, align 0, offset 0] [static]
>> >  // CHECK: metadata !"const_c", {{.*}} [ DW_TAG_member ] [const_c] [line
>> > {{.*}}, size 0, align 0, offset 0] [static]
>> >  // CHECK: metadata !"x_a", {{.*}} [ DW_TAG_member ] [x_a] {{.*}}
>> > [static]
>> > +// CHECK: metadata !"a", {{.*}} @_ZN1C1aE, metadata ![[DECL_A]]} ; [
>> > DW_TAG_variable ] [a] {{.*}} [def]
>> >  // CHECK: metadata !"b", {{.*}} @_ZN1C1bE, metadata ![[DECL_B]]} ; [
>> > DW_TAG_variable ] [b] {{.*}} [def]
>> >  // CHECK: metadata !"c", {{.*}} @_ZN1C1cE, metadata ![[DECL_C]]} ; [
>> > DW_TAG_variable ] [c] {{.*}} [def]
>> >
>> > Modified: cfe/trunk/test/CodeGenCXX/debug-info-template-limit.cpp
>> > URL:
>> > http://llvm.org/viewvc/llvm-project/cfe/trunk/test/CodeGenCXX/debug-info-template-limit.cpp?rev=189600&r1=189599&r2=189600&view=diff
>> >
>> > ==============================================================================
>> > --- cfe/trunk/test/CodeGenCXX/debug-info-template-limit.cpp (original)
>> > +++ cfe/trunk/test/CodeGenCXX/debug-info-template-limit.cpp Thu Aug 29
>> > 13:51:51 2013
>> > @@ -1,8 +1,8 @@
>> >  // RUN: %clang -flimit-debug-info -emit-llvm -g -S %s -o - | FileCheck
>> > %s
>> >
>> >  // Check that this pointer type is TC<int>
>> > -// CHECK: ![[LINE:[0-9]+]]} ; [ DW_TAG_pointer_type ]{{.*}}[from
>> > TC<int>]
>> > -// CHECK-NEXT: ![[LINE]] ={{.*}}"TC<int>"
>> > +// CHECK: ![[LINE:[0-9]+]] = {{.*}}"TC<int>"
>> > +// CHECK: ![[LINE]]} ; [ DW_TAG_pointer_type ]{{.*}}[from TC<int>]
>> >
>> >  template<typename T>
>> >  class TC {
>> >
>> > Modified: cfe/trunk/test/CodeGenCXX/debug-info-template-member.cpp
>> > URL:
>> > http://llvm.org/viewvc/llvm-project/cfe/trunk/test/CodeGenCXX/debug-info-template-member.cpp?rev=189600&r1=189599&r2=189600&view=diff
>> >
>> > ==============================================================================
>> > --- cfe/trunk/test/CodeGenCXX/debug-info-template-member.cpp (original)
>> > +++ cfe/trunk/test/CodeGenCXX/debug-info-template-member.cpp Thu Aug 29
>> > 13:51:51 2013
>> > @@ -16,9 +16,17 @@ inline int add3(int x) {
>> >    return MyClass().add<3>(x); // even though add<3> is ODR used, don't
>> > emit it since we don't codegen it
>> >  }
>> >
>> > -// CHECK: [[C:![0-9]*]] = {{.*}}, metadata [[C_MEM:![0-9]*]], i32 0,
>> > metadata [[C]], null, null} ; [ DW_TAG_structure_type ] [MyClass]
>> > +// CHECK: [[FOO_MEM:![0-9]*]], i32 0, null, null, metadata !"_ZTS3foo"}
>> > ; [ DW_TAG_structure_type ] [foo]
>> > +// CHECK: [[FOO_MEM]] = metadata !{metadata [[FOO_FUNC:![0-9]*]]}
>> > +// CHECK: [[FOO_FUNC]] = {{.*}}, metadata
>> > !"_ZN3foo4funcEN5outerIS_E5innerE", i32 {{[0-9]*}}, metadata
>> > [[FOO_FUNC_TYPE:![0-9]*]], {{.*}} ; [ DW_TAG_subprogram ] {{.*}} [func]
>> > +// CHECK: [[FOO_FUNC_TYPE]] = {{.*}}, metadata
>> > [[FOO_FUNC_PARAMS:![0-9]*]], i32 0, null, null, null} ; [
>> > DW_TAG_subroutine_type ]
>> > +// CHECK: [[FOO_FUNC_PARAMS]] = metadata !{null, metadata !{{[0-9]*}},
>> > metadata [[OUTER_FOO_INNER:![0-9]*]]}
>> > +// CHECK: [[OUTER_FOO_INNER]] = {{.*}} ; [ DW_TAG_structure_type ]
>> > [inner]
>> > +
>> > +// CHECK: [[C:![0-9]*]] = {{.*}}, metadata [[C_MEM:![0-9]*]], i32 0,
>> > metadata [[C]], null, metadata !"_ZTS7MyClass"} ; [ DW_TAG_structure_type ]
>> > [MyClass]
>> >  // CHECK: [[C_MEM]] = metadata !{metadata [[C_VPTR:![0-9]*]], metadata
>> > [[C_ADD:![0-9]*]], metadata [[C_FUNC:![0-9]*]], metadata [[C_CTOR:![0-9]*]]}
>> >  // CHECK: [[C_VPTR]] = {{.*}} ; [ DW_TAG_member ] [_vptr$MyClass]
>> > +
>> >  // CHECK: [[C_ADD]] = {{.*}} ; [ DW_TAG_subprogram ] [line 4] [add<2>]
>> >  // CHECK: [[C_FUNC]] = {{.*}} ; [ DW_TAG_subprogram ] [line 7] [func]
>> >  // CHECK: [[C_CTOR]] = {{.*}} ; [ DW_TAG_subprogram ] [line 0]
>> > [MyClass]
>> > @@ -43,10 +51,4 @@ inline void func() {
>> >
>> >  outer<foo>::inner x;
>> >
>> > -// CHECK: metadata [[OUTER_FOO_INNER:![0-9]*]], i32 {{[0-9]*}}, i32
>> > {{[0-9]*}}, %"struct.outer<foo>::inner"* @x, {{.*}} ; [ DW_TAG_variable ]
>> > [x]
>> > -// CHECK: [[OUTER_FOO_INNER]] = {{.*}} ; [ DW_TAG_structure_type ]
>> > [inner]
>> > -// CHECK: [[FOO_MEM:![0-9]*]], i32 0, null, null, null} ; [
>> > DW_TAG_structure_type ] [foo]
>> > -// CHECK: [[FOO_MEM]] = metadata !{metadata [[FOO_FUNC:![0-9]*]]}
>> > -// CHECK: [[FOO_FUNC]] = {{.*}}, metadata
>> > !"_ZN3foo4funcEN5outerIS_E5innerE", i32 {{[0-9]*}}, metadata
>> > [[FOO_FUNC_TYPE:![0-9]*]], {{.*}} ; [ DW_TAG_subprogram ] {{.*}} [func]
>> > -// CHECK: [[FOO_FUNC_TYPE]] = {{.*}}, metadata
>> > [[FOO_FUNC_PARAMS:![0-9]*]], i32 0, null, null, null} ; [
>> > DW_TAG_subroutine_type ]
>> > -// CHECK: [[FOO_FUNC_PARAMS]] = metadata !{null, metadata !{{[0-9]*}},
>> > metadata [[OUTER_FOO_INNER]]}
>> > +// CHECK: metadata [[OUTER_FOO_INNER]], i32 {{[0-9]*}}, i32 {{[0-9]*}},
>> > %"struct.outer<foo>::inner"* @x, {{.*}} ; [ DW_TAG_variable ] [x]
>> >
>> > Modified: cfe/trunk/test/CodeGenCXX/debug-info-template-quals.cpp
>> > URL:
>> > http://llvm.org/viewvc/llvm-project/cfe/trunk/test/CodeGenCXX/debug-info-template-quals.cpp?rev=189600&r1=189599&r2=189600&view=diff
>> >
>> > ==============================================================================
>> > --- cfe/trunk/test/CodeGenCXX/debug-info-template-quals.cpp (original)
>> > +++ cfe/trunk/test/CodeGenCXX/debug-info-template-quals.cpp Thu Aug 29
>> > 13:51:51 2013
>> > @@ -15,13 +15,13 @@ void foo (const char *c) {
>> >    str.assign(c, str);
>> >  }
>> >
>> > -// CHECK: [[P:.*]] = {{.*}}, metadata [[CON:![0-9]*]]} ; [
>> > DW_TAG_pointer_type ] [line 0, size 64, align 64, offset 0] [from ]
>> > +// CHECK: [[BS:.*]] = {{.*}} ; [ DW_TAG_structure_type ]
>> > [basic_string<char>] [line 4, size 8, align 8, offset 0] [def] [from ]
>> > +// CHECK: [[TYPE:![0-9]*]] = metadata !{i32 {{.*}}, metadata
>> > [[ARGS:.*]], i32 0, null, null, null} ; [ DW_TAG_subroutine_type ]
>> > +// CHECK: [[ARGS]] = metadata !{metadata !{{.*}}, metadata !{{.*}},
>> > metadata [[P:![0-9]*]], metadata [[R:.*]]}
>> > +// CHECK: [[P]] = {{.*}}, metadata [[CON:![0-9]*]]} ; [
>> > DW_TAG_pointer_type ] [line 0, size 64, align 64, offset 0] [from ]
>> >  // CHECK: [[CON]] = {{.*}}, metadata [[CH:![0-9]*]]} ; [
>> > DW_TAG_const_type ] [line 0, size 0, align 0, offset 0] [from char]
>> >  // CHECK: [[CH]] = {{.*}} ; [ DW_TAG_base_type ] [char] [line 0, size
>> > 8, align 8, offset 0, enc DW_ATE_signed_char]
>> >
>> > -// CHECK: {{.*}} metadata [[TYPE:![0-9]*]], {{.*}}, metadata
>> > !{{[0-9]*}}, metadata !{{[0-9]*}}, i32 8} ; [ DW_TAG_subprogram ] [line 7]
>> > [def] [scope 8] [assign]
>> > -// CHECK: [[TYPE]] = metadata !{i32 {{.*}}, metadata [[ARGS:.*]], i32
>> > 0, null, null, null} ; [ DW_TAG_subroutine_type ]
>> > -// CHECK: [[ARGS]] = metadata !{metadata !{{.*}}, metadata !{{.*}},
>> > metadata [[P]], metadata [[R:.*]]}
>> > -// CHECK: [[BS:.*]] = {{.*}} ; [ DW_TAG_structure_type ]
>> > [basic_string<char>] [line 4, size 8, align 8, offset 0] [def] [from ]
>> >  // CHECK: [[R]] = {{.*}}, metadata [[CON2:![0-9]*]]} ; [
>> > DW_TAG_reference_type ] [line 0, size 0, align 0, offset 0] [from ]
>> >  // CHECK: [[CON2]] = {{.*}}, metadata [[BS]]} ; [ DW_TAG_const_type ]
>> > [line 0, size 0, align 0, offset 0] [from basic_string<char>]
>> > +// CHECK: {{.*}} metadata [[TYPE]], {{.*}}, metadata !{{[0-9]*}},
>> > metadata !{{[0-9]*}}, i32 8} ; [ DW_TAG_subprogram ] [line 7] [def] [scope
>> > 8] [assign]
>> >
>> > Modified: cfe/trunk/test/CodeGenCXX/debug-info-template.cpp
>> > URL:
>> > http://llvm.org/viewvc/llvm-project/cfe/trunk/test/CodeGenCXX/debug-info-template.cpp?rev=189600&r1=189599&r2=189600&view=diff
>> >
>> > ==============================================================================
>> > --- cfe/trunk/test/CodeGenCXX/debug-info-template.cpp (original)
>> > +++ cfe/trunk/test/CodeGenCXX/debug-info-template.cpp Thu Aug 29
>> > 13:51:51 2013
>> > @@ -3,10 +3,7 @@
>> >  // CHECK: [[EMPTY:![0-9]*]] = metadata !{i32 0}
>> >
>> >
>> > -// CHECK: [[INT:![0-9]*]] = {{.*}} ; [ DW_TAG_base_type ] [int]
>> > -// CHECK: metadata [[TCNESTED:![0-9]*]], i32 0, i32 1,
>> > %"struct.TC<unsigned int, 2, &glb, &foo::e, &foo::f, &func, tmpl_impl, 1, 2,
>> > 3>::nested"* @tci, null} ; [ DW_TAG_variable ] [tci]
>> > -// CHECK: [[TCNESTED]] = metadata !{i32 {{[0-9]*}}, metadata
>> > !{{[0-9]*}}, metadata [[TC:![0-9]*]], {{.*}} ; [ DW_TAG_structure_type ]
>> > [nested]
>> > -// CHECK: [[TC]] = {{.*}}, metadata [[TCARGS:![0-9]*]], null} ; [
>> > DW_TAG_structure_type ] [TC<unsigned int, 2, &glb, &foo::e, &foo::f, &func,
>> > tmpl_impl, 1, 2, 3>]
>> > +// CHECK: [[TC:![0-9]*]] = {{.*}}, metadata [[TCARGS:![0-9]*]],
>> > metadata !"{{.*}}"} ; [ DW_TAG_structure_type ] [TC<unsigned int, 2, &glb,
>> > &foo::e, &foo::f, &func, tmpl_impl, 1, 2, 3>]
>> >  // CHECK: [[TCARGS]] = metadata !{metadata [[TCARG1:![0-9]*]], metadata
>> > [[TCARG2:![0-9]*]], metadata [[TCARG3:![0-9]*]], metadata
>> > [[TCARG4:![0-9]*]], metadata [[TCARG5:![0-9]*]], metadata
>> > [[TCARG6:![0-9]*]], metadata [[TCARG7:![0-9]*]], metadata
>> > [[TCARG8:![0-9]*]]}
>> >  //
>> >  // We seem to be missing file/line/col info on template value
>> > parameters -
>> > @@ -15,9 +12,10 @@
>> >  //
>> >  // CHECK: [[TCARG1]] = {{.*}}metadata !"T", metadata [[UINT:![0-9]*]],
>> > {{.*}} ; [ DW_TAG_template_type_parameter ]
>> >  // CHECK: [[UINT:![0-9]*]] = {{.*}} ; [ DW_TAG_base_type ] [unsigned
>> > int]
>> > -// CHECK: [[TCARG2]] = {{.*}}metadata !"", metadata [[UINT:![0-9]*]],
>> > i32 2, {{.*}} ; [ DW_TAG_template_value_parameter ]
>> > +// CHECK: [[TCARG2]] = {{.*}}metadata !"", metadata [[UINT]], i32 2,
>> > {{.*}} ; [ DW_TAG_template_value_parameter ]
>> >  // CHECK: [[TCARG3]] = {{.*}}metadata !"x", metadata
>> > [[INTPTR:![0-9]*]], i32* @glb, {{.*}} ; [ DW_TAG_template_value_parameter ]
>> > -// CHECK: [[INTPTR]] = {{.*}}, metadata [[INT]]} ; [
>> > DW_TAG_pointer_type ] [line 0, size 64, align 64, offset 0] [from int]
>> > +// CHECK: [[INTPTR]] = {{.*}}, metadata [[INT:![0-9]*]]} ; [
>> > DW_TAG_pointer_type ] [line 0, size 64, align 64, offset 0] [from int]
>> > +// CHECK: [[INT]] = {{.*}} ; [ DW_TAG_base_type ] [int]
>> >  // CHECK: [[TCARG4]] = {{.*}}metadata !"a", metadata
>> > [[MEMINTPTR:![0-9]*]], i64 8, {{.*}} ; [ DW_TAG_template_value_parameter ]
>> >  // CHECK: [[MEMINTPTR]] = {{.*}}, metadata [[FOO:![0-9]*]]} ; [
>> > DW_TAG_ptr_to_member_type ] {{.*}}[from int]
>> >  //
>> > @@ -48,8 +46,8 @@
>> >  // CHECK: [[TCARG8_3]] = {{.*}}metadata !"", metadata [[INT]], i32 3,
>> > {{.*}} ; [ DW_TAG_template_value_parameter ]
>> >
>> >
>> > -// CHECK: metadata [[TCNT:![0-9]*]], i32 0, i32 1, %struct.TC* @tcn,
>> > null} ; [ DW_TAG_variable ] [tcn]
>> > -// CHECK: [[TCNT:![0-9]*]] = {{.*}}, metadata [[TCNARGS:![0-9]*]],
>> > null} ; [ DW_TAG_structure_type ] [TC<int, -3, nullptr, nullptr, nullptr,
>> > nullptr, tmpl_impl>]
>> > +// CHECK: [[TCNESTED:![0-9]*]] = metadata !{i32 {{[0-9]*}}, metadata
>> > !{{[0-9]*}}, metadata [[TC]], {{.*}} ; [ DW_TAG_structure_type ] [nested]
>> > +// CHECK: [[TCNT:![0-9]*]] = {{.*}}, metadata [[TCNARGS:![0-9]*]],
>> > metadata !"{{.*}}"} ; [ DW_TAG_structure_type ] [TC<int, -3, nullptr,
>> > nullptr, nullptr, nullptr, tmpl_impl>]
>> >  // CHECK: [[TCNARGS]] = metadata !{metadata [[TCNARG1:![0-9]*]],
>> > metadata [[TCNARG2:![0-9]*]], metadata [[TCNARG3:![0-9]*]], metadata
>> > [[TCNARG4:![0-9]*]], metadata [[TCNARG5:![0-9]*]], metadata
>> > [[TCNARG6:![0-9]*]], metadata [[TCARG7:![0-9]*]], metadata
>> > [[TCNARG8:![0-9]*]]}
>> >  // CHECK: [[TCNARG1]] = {{.*}}metadata !"T", metadata [[INT]], {{.*}} ;
>> > [ DW_TAG_template_type_parameter ]
>> >  // CHECK: [[TCNARG2]] = {{.*}}metadata !"", metadata [[INT]], i32 -3,
>> > {{.*}} ; [ DW_TAG_template_value_parameter ]
>> > @@ -70,10 +68,14 @@
>> >  // CHECK: [[TCNARG6]] = {{.*}}metadata !"f", metadata [[FUNPTR]], i8 0,
>> > {{.*}} ; [ DW_TAG_template_value_parameter ]
>> >  // CHECK: [[TCNARG8]] = {{.*}}metadata !"Is", null, metadata [[EMPTY]],
>> > {{.*}} ; [ DW_TAG_GNU_template_parameter_pack ]
>> >
>> > -// CHECK: metadata [[PTOARGS:![0-9]*]], null} ; [ DW_TAG_structure_type
>> > ] [PaddingAtEndTemplate<&PaddedObj>]
>> > +// CHECK: metadata [[PTOARGS:![0-9]*]], metadata !"{{.*}}"} ; [
>> > DW_TAG_structure_type ] [PaddingAtEndTemplate<&PaddedObj>]
>> >  // CHECK: [[PTOARGS]] = metadata !{metadata [[PTOARG1:![0-9]*]]}
>> >  // CHECK: [[PTOARG1]] = {{.*}}metadata !"", metadata
>> > [[CONST_PADDINGATEND_PTR:![0-9]*]], { i32, i8, [3 x i8] }* @PaddedObj,
>> > {{.*}} ; [ DW_TAG_template_value_parameter ]
>> >  // CHECK: [[CONST_PADDINGATEND_PTR]] = {{.*}} ; [ DW_TAG_pointer_type ]
>> > [line 0, size 64, align 64, offset 0] [from PaddingAtEnd]
>> > +
>> > +// CHECK: metadata [[TCNESTED]], i32 0, i32 1, %"struct.TC<unsigned
>> > int, 2, &glb, &foo::e, &foo::f, &func, tmpl_impl, 1, 2, 3>::nested"* @tci,
>> > null} ; [ DW_TAG_variable ] [tci]
>> > +
>> > +// CHECK: metadata [[TCNT:![0-9]*]], i32 0, i32 1, %struct.TC* @tcn,
>> > null} ; [ DW_TAG_variable ] [tcn]
>> >  struct foo {
>> >    char pad[8]; // make the member pointer to 'e' a bit more interesting
>> > (nonzero)
>> >    int e;
>> >
>> > Modified: cfe/trunk/test/CodeGenCXX/debug-info-union-template.cpp
>> > URL:
>> > http://llvm.org/viewvc/llvm-project/cfe/trunk/test/CodeGenCXX/debug-info-union-template.cpp?rev=189600&r1=189599&r2=189600&view=diff
>> >
>> > ==============================================================================
>> > --- cfe/trunk/test/CodeGenCXX/debug-info-union-template.cpp (original)
>> > +++ cfe/trunk/test/CodeGenCXX/debug-info-union-template.cpp Thu Aug 29
>> > 13:51:51 2013
>> > @@ -10,6 +10,6 @@ namespace PR15637 {
>> >    Value<float> f;
>> >  }
>> >
>> > -// CHECK: {{.*}}, metadata !"Value<float>", {{.*}}, null, metadata
>> > [[TTPARAM:.*]], null} ; [ DW_TAG_union_type ] [Value<float>]
>> > +// CHECK: {{.*}}, metadata !"Value<float>", {{.*}}, null, metadata
>> > [[TTPARAM:.*]], metadata !"_ZTSN7PR156375ValueIfEE"} ; [ DW_TAG_union_type ]
>> > [Value<float>]
>> >  // CHECK: [[TTPARAM]] = metadata !{metadata [[PARAMS:.*]]}
>> >  // CHECK: [[PARAMS]] = metadata !{{{.*}}metadata !"T",{{.*}}} ; [
>> > DW_TAG_template_type_parameter ]
>> >
>> > Modified: cfe/trunk/test/CodeGenCXX/debug-info-uuid.cpp
>> > URL:
>> > http://llvm.org/viewvc/llvm-project/cfe/trunk/test/CodeGenCXX/debug-info-uuid.cpp?rev=189600&r1=189599&r2=189600&view=diff
>> >
>> > ==============================================================================
>> > --- cfe/trunk/test/CodeGenCXX/debug-info-uuid.cpp (original)
>> > +++ cfe/trunk/test/CodeGenCXX/debug-info-uuid.cpp Thu Aug 29 13:51:51
>> > 2013
>> > @@ -1,5 +1,5 @@
>> >  // RUN: %clang_cc1 -emit-llvm -fms-extensions -triple=x86_64-pc-win32
>> > -cxx-abi microsoft -g %s -o - -std=c++11 | FileCheck %s
>> > -// RUN: %clang_cc1 -emit-llvm -fms-extensions
>> > -triple=x86_64-unknown-unknown -g %s -o - -std=c++11 | FileCheck %s
>> > +// RUN: not %clang_cc1 -emit-llvm -fms-extensions
>> > -triple=x86_64-unknown-unknown -g %s -std=c++11 2>&1 | FileCheck %s
>> > --check-prefix=CHECK-ITANIUM
>> >
>> >  // CHECK: metadata [[TGIARGS:![0-9]*]], null} ; [ DW_TAG_structure_type
>> > ] [tmpl_guid<&__uuidof(uuid)>]
>> >  // CHECK: [[TGIARGS]] = metadata !{metadata [[TGIARG1:![0-9]*]]}
>> > @@ -8,6 +8,8 @@
>> >  // CHECK: [[CONST_GUID]] = {{.*}}, metadata [[GUID:![0-9]*]]} ; [
>> > DW_TAG_const_type ] [line 0, size 0, align 0, offset 0] [from _GUID]
>> >  // CHECK: [[GUID]] = {{.*}} ; [ DW_TAG_structure_type ] [_GUID]
>> >
>> > +// CHECK-ITANIUM: error: cannot yet mangle expression type
>> > CXXUuidofExpr
>> > +
>> >  struct _GUID;
>> >  template <const _GUID *>
>> >  struct tmpl_guid {
>> >
>> > Modified: cfe/trunk/test/CodeGenCXX/debug-info.cpp
>> > URL:
>> > http://llvm.org/viewvc/llvm-project/cfe/trunk/test/CodeGenCXX/debug-info.cpp?rev=189600&r1=189599&r2=189600&view=diff
>> >
>> > ==============================================================================
>> > --- cfe/trunk/test/CodeGenCXX/debug-info.cpp (original)
>> > +++ cfe/trunk/test/CodeGenCXX/debug-info.cpp Thu Aug 29 13:51:51 2013
>> > @@ -77,9 +77,15 @@ foo func(foo f) {
>> >    return f; // reference 'f' for now because otherwise we hit another
>> > bug
>> >  }
>> >
>> > +// CHECK: [[FOO:![0-9]*]] = metadata !{i32 {{[0-9]*}}, metadata
>> > !{{[0-9]*}}, metadata [[PR14763:![0-9]*]], {{.*}} ; [ DW_TAG_structure_type
>> > ] [foo]
>> > +// CHECK: [[PR14763]] = {{.*}} ; [ DW_TAG_namespace ] [pr14763]
>> > +// CHECK: [[INCTYPE:![0-9]*]] = {{.*}} ; [ DW_TAG_structure_type ]
>> > [incomplete]{{.*}} [decl]
>> > +// CHECK: metadata [[A_MEM:![0-9]*]], i32 0, null, null, metadata
>> > !"_ZTSN7pr162141aE"} ; [ DW_TAG_structure_type ] [a]
>> > +// CHECK: [[A_MEM]] = metadata !{metadata [[A_I:![0-9]*]]}
>> > +// CHECK: [[A_I]] = {{.*}} ; [ DW_TAG_member ] [i] {{.*}} [from int]
>> > +// CHECK: ; [ DW_TAG_structure_type ] [b] {{.*}}[decl]
>> > +
>> >  // CHECK: [[FUNC:![0-9]*]] = {{.*}} metadata
>> > !"_ZN7pr147634funcENS_3fooE", i32 {{[0-9]*}}, metadata
>> > [[FUNC_TYPE:![0-9]*]], {{.*}} ; [ DW_TAG_subprogram ] {{.*}} [def] [func]
>> > -// CHECK: [[PR14763:![0-9]*]] = {{.*}} ; [ DW_TAG_namespace ] [pr14763]
>> > -// CHECK: [[FOO:![0-9]*]] = metadata !{i32 {{[0-9]*}}, metadata
>> > !{{[0-9]*}}, metadata [[PR14763]], {{.*}} ; [ DW_TAG_structure_type ] [foo]
>> >  }
>> >
>> >  namespace pr9608 { // also pr9600
>> > @@ -87,8 +93,7 @@ struct incomplete;
>> >  incomplete (*x)[3];
>> >  // CHECK: metadata [[INCARRAYPTR:![0-9]*]], i32 0, i32 1, [3 x i8]**
>> > @_ZN6pr96081xE, null} ; [ DW_TAG_variable ] [x]
>> >  // CHECK: [[INCARRAYPTR]] = {{.*}}metadata [[INCARRAY:![0-9]*]]} ; [
>> > DW_TAG_pointer_type ]
>> > -// CHECK: [[INCARRAY]] = {{.*}}metadata [[INCTYPE:![0-9]*]], metadata
>> > {{![0-9]*}}, i32 0, null, null, null} ; [ DW_TAG_array_type ] [line 0, size
>> > 0, align 0, offset 0] [from incomplete]
>> > -// CHECK: [[INCTYPE]] = {{.*}} ; [ DW_TAG_structure_type ]
>> > [incomplete]{{.*}} [decl]
>> > +// CHECK: [[INCARRAY]] = {{.*}}metadata [[INCTYPE]], metadata
>> > {{![0-9]*}}, i32 0, null, null, null} ; [ DW_TAG_array_type ] [line 0, size
>> > 0, align 0, offset 0] [from incomplete]
>> >  }
>> >
>> >  // For some reason the argument for PR14763 ended up all the way down
>> > here
>> > @@ -112,8 +117,4 @@ void func() {
>> >    const bt *b_cnst_ptr_inst;
>> >  }
>> >
>> > -// CHECK: metadata [[A_MEM:![0-9]*]], i32 0, null, null, null} ; [
>> > DW_TAG_structure_type ] [a]
>> > -// CHECK: [[A_MEM]] = metadata !{metadata [[A_I:![0-9]*]]}
>> > -// CHECK: [[A_I]] = {{.*}} ; [ DW_TAG_member ] [i] {{.*}} [from int]
>> > -// CHECK: ; [ DW_TAG_structure_type ] [b] {{.*}}[decl]
>> >  }
>> >
>> >
>> > _______________________________________________
>> > cfe-commits mailing list
>> > cfe-commits at cs.uiuc.edu
>> > http://lists.cs.uiuc.edu/mailman/listinfo/cfe-commits
>
>



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