[llvm] r235050 - DebugInfo: Remove 'inlinedAt:' field from MDLocalVariable

David Blaikie dblaikie at gmail.com
Thu Apr 16 14:42:30 PDT 2015


re-add the commits list...

On Thu, Apr 16, 2015 at 2:41 PM, David Blaikie <dblaikie at gmail.com> wrote:

>
>
> On Thu, Apr 16, 2015 at 2:21 PM, Duncan P. N. Exon Smith <
> dexonsmith at apple.com> wrote:
>
>>
>> > On 2015-Apr-16, at 11:41, David Blaikie <dblaikie at gmail.com> wrote:
>> >
>> > (from IRC discussion)
>> >
>> > Looks like this might've caused the GDB buildbot regression seen here:
>> http://lab.llvm.org:8011/builders/clang-x86_64-ubuntu-gdb-75/builds/21390
>> >
>> > Specifically, in the below program
>> >
>> > int *g;
>> >
>> > static __attribute__((always_inline)) int f(int a) {
>> >   int l;
>> >   g = &l;
>> >   return a;
>> > }
>> >
>> > int main(void) {
>> >   f(0);
>> >   f(0);
>> >   return 0;
>> > }
>> >
>> > The inlined_subroutine for 'f' in 'main' has no DW_TAG_formal_parameter
>> (for 'a')
>>
>> I've tracked this down -- UserValue::match() needed to be updated.
>>
>> I fixed what might be an unrelated bug in DebugLocEntry.  I'll have
>> to separate out the two changes to see if this testcase provides any
>> coverage for `DebugLocEntry`; if not I'll maybe need some help from
>> you or Adrian coming up with a good testcase for that one.
>>
>> FTR, here's the patch with the two things intermingled.
>>
>>
>>
>> >
>> > (though this patch didn't regress the behavior, it's interesting to
>> note that there's only one inlined_subroutine in main, even though there
>> are two calls to 'f'... )
>>
>> I also happened upon the following patch, which "fixes" the inlined
>> subroutine thing.
>>
>>
>>
>>
>> The two patches together give:
>>
>> 0x00000076:   DW_TAG_subprogram [8] *
>>                 DW_AT_low_pc [DW_FORM_addr]     (0x0000000000000000)
>>                 DW_AT_high_pc [DW_FORM_addr]    (0x0000000000000016)
>>                 DW_AT_frame_base [DW_FORM_block1]       (<0x01> 56 )
>>                 DW_AT_name [DW_FORM_strp]       ( .debug_str[0x0000007b]
>> = "main")
>>                 DW_AT_decl_file [DW_FORM_data1]
>> ("/Users/dexonsmith/data/llvm/staging/play/inlined-at/t.c")
>>                 DW_AT_decl_line [DW_FORM_data1] (9)
>>                 DW_AT_prototyped [DW_FORM_flag] (0x01)
>>                 DW_AT_type [DW_FORM_ref4]       (cu + 0x004a =>
>> {0x0000004a})
>>                 DW_AT_external [DW_FORM_flag]   (0x01)
>>                 DW_AT_APPLE_optimized [DW_FORM_flag]    (0x01)
>>
>> 0x00000096:     DW_TAG_inlined_subroutine [9] *
>>                   DW_AT_abstract_origin [DW_FORM_ref4]  (cu + 0x0051 =>
>> {0x00000051} "f")
>>                   DW_AT_ranges [DW_FORM_data4]  (0x00000000)
>>
>
> What's the range of this subroutine?
>
>
>>                   DW_AT_call_file [DW_FORM_data1]
>>  ("/Users/dexonsmith/data/llvm/staging/play/inlined-at/t.c")
>>                   DW_AT_call_line [DW_FORM_data1]       (10)
>>
>> 0x000000a1:       DW_TAG_formal_parameter [10]
>>                     DW_AT_const_value [DW_FORM_sdata]   (0)
>>                     DW_AT_abstract_origin [DW_FORM_ref4]        (cu +
>> 0x005f => {0x0000005f} "a")
>>
>> 0x000000a7:       NULL
>>
>> 0x000000a8:     DW_TAG_inlined_subroutine [11] *
>>                   DW_AT_abstract_origin [DW_FORM_ref4]  (cu + 0x0051 =>
>> {0x00000051} "f")
>>                   DW_AT_low_pc [DW_FORM_addr]   (0x0000000000000004)
>>                   DW_AT_high_pc [DW_FORM_addr]  (0x0000000000000014)
>>                   DW_AT_call_file [DW_FORM_data1]
>>  ("/Users/dexonsmith/data/llvm/staging/play/inlined-at/t.c")
>>                   DW_AT_call_line [DW_FORM_data1]       (11)
>>
>> 0x000000bf:       DW_TAG_formal_parameter [10]
>>                     DW_AT_const_value [DW_FORM_sdata]   (0)
>>                     DW_AT_abstract_origin [DW_FORM_ref4]        (cu +
>> 0x005f => {0x0000005f} "a")
>>
>> 0x000000c5:       DW_TAG_variable [12]
>>                     DW_AT_location [DW_FORM_block1]     (<0x02> 72 00 )
>>                     DW_AT_abstract_origin [DW_FORM_ref4]        (cu +
>> 0x006a => {0x0000006a} "l")
>>
>> 0x000000cd:       NULL
>>
>> 0x000000ce:     NULL
>>
>>
>> (If instead of the code in that patch, you just comment out that
>> `if` statement (and early return) entirely, you then both
>> `DW_AT_low_pc` and `DW_AT_high_pc` show up with the value `0x4`.
>
>
> Neither of the inlined subroutines seem to have a high == low pc (0x4 or
> otherwise) in the above dump?
>
>
>> )
>>
>> Is it a bug or a feature that the first inlined subroutine is
>> current omitted?  I'm tending towards the latter, since the
>> instructions are all optimized out (so the function call is gone).
>>
>
> Feature, imho - if the range is empty I don't think it's important to
> include it in the debug info. Maybe some interesting debugger might want to
> use the info for something, but I haven't heard of any such features yet
> and I'm happy not to add excess debug info to our output until someone has
> a concrete compelling use case.
>
>
>>
>> For reference, here's the IR:
>>
>> define i32 @main() #0 {
>> entry:
>>   %l.i2 = alloca i32, align 4
>>   tail call void @llvm.dbg.value(metadata i32 0, i64 0, metadata !12,
>> metadata !21), !dbg !22
>>   %0 = bitcast i32* %l.i2 to i8*, !dbg !24
>>   call void @llvm.lifetime.start(i64 4, i8* %0), !dbg !24
>>   tail call void @llvm.dbg.value(metadata i32 0, i64 0, metadata !12,
>> metadata !21), !dbg !24
>>   tail call void @llvm.dbg.value(metadata i32* %l.i2, i64 0, metadata
>> !13, metadata !21), !dbg !26
>>   store i32* %l.i2, i32** @g, align 8, !dbg !27, !tbaa !28
>>   call void @llvm.lifetime.end(i64 4, i8* %0), !dbg !32
>>   ret i32 0, !dbg !33
>> }
>>
>> ...
>> !2 = !{}
>> !4 = !MDSubprogram(name: "main", scope: !1, file: !1, line: 9, type: !5,
>> isLocal: false, isDefinition: true, scopeLine: 9, flags: DIFlagPrototyped,
>> isOptimized: true, function: i32 ()* @main, variables: !2)
>> ...
>> !8 = !MDSubprogram(name: "f", scope: !1, file: !1, line: 3, type: !9,
>> isLocal: true, isDefinition: true, scopeLine: 3, flags: DIFlagPrototyped,
>> isOptimized: true, variables: !11)
>> ...
>> !11 = !{!12, !13}
>> !12 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "a", arg: 1,
>> scope: !8, file: !1, line: 3, type: !7)
>> !13 = !MDLocalVariable(tag: DW_TAG_auto_variable, name: "l", scope: !8,
>> file: !1, line: 4, type: !7)
>> ...
>> !22 = !MDLocation(line: 3, column: 49, scope: !8, inlinedAt: !23)
>> !23 = distinct !MDLocation(line: 10, column: 3, scope: !4)
>> !24 = !MDLocation(line: 3, column: 49, scope: !8, inlinedAt: !25)
>> !25 = distinct !MDLocation(line: 11, column: 3, scope: !4)
>> !26 = !MDLocation(line: 4, column: 7, scope: !8, inlinedAt: !25)
>> !32 = !MDLocation(line: 11, column: 3, scope: !4)
>> !33 = !MDLocation(line: 12, column: 3, scope: !4)
>>
>>
>> > On Wed, Apr 15, 2015 at 3:29 PM, Duncan P. N. Exon Smith <
>> dexonsmith at apple.com> wrote:
>> > Author: dexonsmith
>> > Date: Wed Apr 15 17:29:27 2015
>> > New Revision: 235050
>> >
>> > URL: http://llvm.org/viewvc/llvm-project?rev=235050&view=rev
>> > Log:
>> > DebugInfo: Remove 'inlinedAt:' field from MDLocalVariable
>> >
>> > Remove 'inlinedAt:' from MDLocalVariable.  Besides saving some memory
>> > (variables with it seem to be single largest `Metadata` contributer to
>> > memory usage right now in -g -flto builds), this stops optimization and
>> > backend passes from having to change local variables.
>> >
>> > The 'inlinedAt:' field was used by the backend in two ways:
>> >
>> >  1. To tell the backend whether and into what a variable was inlined.
>> >  2. To create a unique id for each inlined variable.
>> >
>> > Instead, rely on the 'inlinedAt:' field of the intrinsic's `!dbg`
>> > attachment, and change the DWARF backend to use a typedef called
>> > `InlinedVariable` which is `std::pair<MDLocalVariable*, MDLocation*>`.
>> > This `DebugLoc` is already passed reliably through the backend (as
>> > verified by r234021).
>> >
>> > This commit removes the check from r234021, but I added a new check
>> > (that will survive) in r235048, and changed the `DIBuilder` API in
>> > r235041 to require a `!dbg` attachment whose 'scope:` is in the same
>> > `MDSubprogram` as the variable's.
>> >
>> > If this breaks your out-of-tree testcases, perhaps the script I used
>> > (mdlocalvariable-drop-inlinedat.sh) will help; I'll attach it to PR22778
>> > in a moment.
>> >
>> > Modified:
>> >     llvm/trunk/docs/LangRef.rst
>> >     llvm/trunk/include/llvm/CodeGen/MachineModuleInfo.h
>> >     llvm/trunk/include/llvm/IR/DebugInfo.h
>> >     llvm/trunk/include/llvm/IR/DebugInfoMetadata.h
>> >     llvm/trunk/lib/AsmParser/LLParser.cpp
>> >     llvm/trunk/lib/Bitcode/Reader/BitcodeReader.cpp
>> >     llvm/trunk/lib/Bitcode/Writer/BitcodeWriter.cpp
>> >     llvm/trunk/lib/CodeGen/AsmPrinter/DbgValueHistoryCalculator.cpp
>> >     llvm/trunk/lib/CodeGen/AsmPrinter/DbgValueHistoryCalculator.h
>> >     llvm/trunk/lib/CodeGen/AsmPrinter/DwarfCompileUnit.cpp
>> >     llvm/trunk/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
>> >     llvm/trunk/lib/CodeGen/AsmPrinter/DwarfDebug.h
>> >     llvm/trunk/lib/CodeGen/LiveDebugVariables.cpp
>> >     llvm/trunk/lib/CodeGen/MachineInstr.cpp
>> >     llvm/trunk/lib/IR/AsmWriter.cpp
>> >     llvm/trunk/lib/IR/DebugInfo.cpp
>> >     llvm/trunk/lib/IR/DebugInfoMetadata.cpp
>> >     llvm/trunk/lib/IR/LLVMContextImpl.h
>> >     llvm/trunk/lib/IR/Verifier.cpp
>> >     llvm/trunk/lib/Transforms/Utils/InlineFunction.cpp
>> >     llvm/trunk/test/Assembler/mdlocalvariable.ll
>> >     llvm/trunk/test/CodeGen/ARM/debug-info-d16-reg.ll
>> >     llvm/trunk/test/CodeGen/ARM/debug-info-s16-reg.ll
>> >     llvm/trunk/test/CodeGen/X86/dbg-changes-codegen-branch-folding.ll
>> >     llvm/trunk/test/CodeGen/X86/stack-protector-dbginfo.ll
>> >     llvm/trunk/test/DebugInfo/2010-05-03-OriginDIE.ll
>> >     llvm/trunk/test/DebugInfo/2010-06-29-InlinedFnLocalVar.ll
>> >     llvm/trunk/test/DebugInfo/AArch64/cfi-eof-prologue.ll
>> >     llvm/trunk/test/DebugInfo/AArch64/frameindices.ll
>> >     llvm/trunk/test/DebugInfo/ARM/cfi-eof-prologue.ll
>> >     llvm/trunk/test/DebugInfo/Mips/InlinedFnLocalVar.ll
>> >     llvm/trunk/test/DebugInfo/PR20038.ll
>> >     llvm/trunk/test/DebugInfo/X86/InlinedFnLocalVar.ll
>> >     llvm/trunk/test/DebugInfo/X86/dbg-value-inlined-parameter.ll
>> >     llvm/trunk/test/DebugInfo/X86/debug-ranges-offset.ll
>> >     llvm/trunk/test/DebugInfo/X86/inline-member-function.ll
>> >     llvm/trunk/test/DebugInfo/X86/inline-seldag-test.ll
>> >     llvm/trunk/test/DebugInfo/X86/mi-print.ll
>> >     llvm/trunk/test/DebugInfo/X86/nodebug_with_debug_loc.ll
>> >     llvm/trunk/test/DebugInfo/X86/nophysreg.ll
>> >     llvm/trunk/test/DebugInfo/X86/recursive_inlining.ll
>> >     llvm/trunk/test/DebugInfo/cross-cu-inlining.ll
>> >     llvm/trunk/test/DebugInfo/inline-scopes.ll
>> >     llvm/trunk/test/DebugInfo/inlined-arguments.ll
>> >     llvm/trunk/test/DebugInfo/inlined-vars.ll
>> >     llvm/trunk/test/DebugInfo/missing-abstract-variable.ll
>> >     llvm/trunk/test/DebugInfo/namespace_inline_function_definition.ll
>> >     llvm/trunk/test/Transforms/Inline/alloca-dbgdeclare.ll
>> >     llvm/trunk/test/Transforms/Inline/inline_dbg_declare.ll
>> >     llvm/trunk/test/Transforms/Mem2Reg/ConvertDebugInfo2.ll
>> >     llvm/trunk/unittests/IR/MetadataTest.cpp
>> >
>> > Modified: llvm/trunk/docs/LangRef.rst
>> > URL:
>> http://llvm.org/viewvc/llvm-project/llvm/trunk/docs/LangRef.rst?rev=235050&r1=235049&r2=235050&view=diff
>> >
>> ==============================================================================
>> > --- llvm/trunk/docs/LangRef.rst (original)
>> > +++ llvm/trunk/docs/LangRef.rst Wed Apr 15 17:29:27 2015
>> > @@ -3235,21 +3235,15 @@ arguments (``DW_TAG_arg_variable``).  In
>> >  specifies the argument position, and this variable will be included in
>> the
>> >  ``variables:`` field of its :ref:`MDSubprogram`.
>> >
>> > -If set, the ``inlinedAt:`` field points at an :ref:`MDLocation`, and
>> the
>> > -variable represents an inlined version of a variable (with all other
>> fields
>> > -duplicated from the non-inlined version).
>> > -
>> >  .. code-block:: llvm
>> >
>> >      !0 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "this", arg:
>> 0,
>> >                            scope: !3, file: !2, line: 7, type: !3,
>> > -                          flags: DIFlagArtificial, inlinedAt: !4)
>> > +                          flags: DIFlagArtificial)
>> >      !1 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "x", arg: 1,
>> > -                          scope: !4, file: !2, line: 7, type: !3,
>> > -                          inlinedAt: !6)
>> > +                          scope: !4, file: !2, line: 7, type: !3)
>> >      !1 = !MDLocalVariable(tag: DW_TAG_auto_variable, name: "y",
>> > -                          scope: !5, file: !2, line: 7, type: !3,
>> > -                          inlinedAt: !6)
>> > +                          scope: !5, file: !2, line: 7, type: !3)
>> >
>> >  MDExpression
>> >  """"""""""""
>> >
>> > Modified: llvm/trunk/include/llvm/CodeGen/MachineModuleInfo.h
>> > URL:
>> http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/CodeGen/MachineModuleInfo.h?rev=235050&r1=235049&r2=235050&view=diff
>> >
>> ==============================================================================
>> > --- llvm/trunk/include/llvm/CodeGen/MachineModuleInfo.h (original)
>> > +++ llvm/trunk/include/llvm/CodeGen/MachineModuleInfo.h Wed Apr 15
>> 17:29:27 2015
>> > @@ -184,12 +184,13 @@ public:
>> >    static char ID; // Pass identification, replacement for typeid
>> >
>> >    struct VariableDbgInfo {
>> > -    TrackingMDNodeRef Var;
>> > -    TrackingMDNodeRef Expr;
>> > +    const MDLocalVariable *Var;
>> > +    const MDExpression *Expr;
>> >      unsigned Slot;
>> > -    DebugLoc Loc;
>> > +    const MDLocation *Loc;
>> >
>> > -    VariableDbgInfo(MDNode *Var, MDNode *Expr, unsigned Slot, DebugLoc
>> Loc)
>> > +    VariableDbgInfo(const MDLocalVariable *Var, const MDExpression
>> *Expr,
>> > +                    unsigned Slot, const MDLocation *Loc)
>> >          : Var(Var), Expr(Expr), Slot(Slot), Loc(Loc) {}
>> >    };
>> >    typedef SmallVector<VariableDbgInfo, 4> VariableDbgInfoMapTy;
>> > @@ -437,8 +438,8 @@ public:
>> >
>> >    /// setVariableDbgInfo - Collect information used to emit debugging
>> >    /// information of a variable.
>> > -  void setVariableDbgInfo(MDNode *Var, MDNode *Expr, unsigned Slot,
>> > -                          DebugLoc Loc) {
>> > +  void setVariableDbgInfo(const MDLocalVariable *Var, const
>> MDExpression *Expr,
>> > +                          unsigned Slot, const MDLocation *Loc) {
>> >      VariableDbgInfos.emplace_back(Var, Expr, Slot, Loc);
>> >    }
>> >
>> >
>> > Modified: llvm/trunk/include/llvm/IR/DebugInfo.h
>> > URL:
>> http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/IR/DebugInfo.h?rev=235050&r1=235049&r2=235050&view=diff
>> >
>> ==============================================================================
>> > --- llvm/trunk/include/llvm/IR/DebugInfo.h (original)
>> > +++ llvm/trunk/include/llvm/IR/DebugInfo.h Wed Apr 15 17:29:27 2015
>> > @@ -622,16 +622,6 @@ DISubprogram getDISubprogram(const Funct
>> >  /// \brief Find underlying composite type.
>> >  DICompositeType getDICompositeType(DIType T);
>> >
>> > -/// \brief Create a new inlined variable based on current variable.
>> > -///
>> > -/// @param DV            Current Variable.
>> > -/// @param InlinedScope  Location at current variable is inlined.
>> > -DIVariable createInlinedVariable(MDNode *DV, MDNode *InlinedScope,
>> > -                                 LLVMContext &VMContext);
>> > -
>> > -/// \brief Remove inlined scope from the variable.
>> > -DIVariable cleanseInlinedVariable(MDNode *DV, LLVMContext &VMContext);
>> > -
>> >  /// \brief Generate map by visiting all retained types.
>> >  DITypeIdentifierMap generateDITypeIdentifierMap(const NamedMDNode
>> *CU_Nodes);
>> >
>> >
>> > Modified: llvm/trunk/include/llvm/IR/DebugInfoMetadata.h
>> > URL:
>> http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/IR/DebugInfoMetadata.h?rev=235050&r1=235049&r2=235050&view=diff
>> >
>> ==============================================================================
>> > --- llvm/trunk/include/llvm/IR/DebugInfoMetadata.h (original)
>> > +++ llvm/trunk/include/llvm/IR/DebugInfoMetadata.h Wed Apr 15 17:29:27
>> 2015
>> > @@ -1877,38 +1877,32 @@ class MDLocalVariable : public MDVariabl
>> >    static MDLocalVariable *getImpl(LLVMContext &Context, unsigned Tag,
>> >                                    MDScope *Scope, StringRef Name,
>> MDFile *File,
>> >                                    unsigned Line, MDTypeRef Type,
>> unsigned Arg,
>> > -                                  unsigned Flags, MDLocation
>> *InlinedAt,
>> > -                                  StorageType Storage,
>> > +                                  unsigned Flags, StorageType Storage,
>> >                                    bool ShouldCreate = true) {
>> >      return getImpl(Context, Tag, Scope, getCanonicalMDString(Context,
>> Name),
>> > -                   File, Line, Type, Arg, Flags, InlinedAt, Storage,
>> > -                   ShouldCreate);
>> > +                   File, Line, Type, Arg, Flags, Storage,
>> ShouldCreate);
>> >    }
>> > -  static MDLocalVariable *getImpl(LLVMContext &Context, unsigned Tag,
>> > -                                  Metadata *Scope, MDString *Name,
>> > -                                  Metadata *File, unsigned Line,
>> Metadata *Type,
>> > -                                  unsigned Arg, unsigned Flags,
>> > -                                  Metadata *InlinedAt, StorageType
>> Storage,
>> > -                                  bool ShouldCreate = true);
>> > +  static MDLocalVariable *
>> > +  getImpl(LLVMContext &Context, unsigned Tag, Metadata *Scope,
>> MDString *Name,
>> > +          Metadata *File, unsigned Line, Metadata *Type, unsigned Arg,
>> > +          unsigned Flags, StorageType Storage, bool ShouldCreate =
>> true);
>> >
>> >    TempMDLocalVariable cloneImpl() const {
>> >      return getTemporary(getContext(), getTag(), getScope(), getName(),
>> > -                        getFile(), getLine(), getType(), getArg(),
>> getFlags(),
>> > -                        getInlinedAt());
>> > +                        getFile(), getLine(), getType(), getArg(),
>> getFlags());
>> >    }
>> >
>> >  public:
>> >    DEFINE_MDNODE_GET(MDLocalVariable,
>> >                      (unsigned Tag, MDLocalScope *Scope, StringRef Name,
>> >                       MDFile *File, unsigned Line, MDTypeRef Type,
>> unsigned Arg,
>> > -                     unsigned Flags, MDLocation *InlinedAt = nullptr),
>> > -                    (Tag, Scope, Name, File, Line, Type, Arg, Flags,
>> InlinedAt))
>> > +                     unsigned Flags),
>> > +                    (Tag, Scope, Name, File, Line, Type, Arg, Flags))
>> >    DEFINE_MDNODE_GET(MDLocalVariable,
>> >                      (unsigned Tag, Metadata *Scope, MDString *Name,
>> >                       Metadata *File, unsigned Line, Metadata *Type,
>> > -                     unsigned Arg, unsigned Flags,
>> > -                     Metadata *InlinedAt = nullptr),
>> > -                    (Tag, Scope, Name, File, Line, Type, Arg, Flags,
>> InlinedAt))
>> > +                     unsigned Arg, unsigned Flags),
>> > +                    (Tag, Scope, Name, File, Line, Type, Arg, Flags))
>> >
>> >    TempMDLocalVariable clone() const { return cloneImpl(); }
>> >
>> > @@ -1921,11 +1915,6 @@ public:
>> >
>> >    unsigned getArg() const { return Arg; }
>> >    unsigned getFlags() const { return Flags; }
>> > -  MDLocation *getInlinedAt() const {
>> > -    return cast_or_null<MDLocation>(getRawInlinedAt());
>> > -  }
>> > -
>> > -  Metadata *getRawInlinedAt() const { return getOperand(4); }
>> >
>> >    bool isArtificial() const { return getFlags() & FlagArtificial; }
>> >    bool isObjectPointer() const { return getFlags() &
>> FlagObjectPointer; }
>> > @@ -1936,21 +1925,8 @@ public:
>> >    /// inlined-at location as \c this.  (Otherwise, it's not a valid
>> attachemnt
>> >    /// to a \a DbgInfoIntrinsic.)
>> >    bool isValidLocationForIntrinsic(const MDLocation *DL) const {
>> > -    return DL && getInlinedAt() == DL->getInlinedAt() &&
>> > -           getScope()->getSubprogram() ==
>> DL->getScope()->getSubprogram();
>> > -  }
>> > -
>> > -  /// \brief Get an inlined version of this variable.
>> > -  ///
>> > -  /// Returns a version of this with \a getAlinedAt() set to \c
>> InlinedAt.
>> > -  MDLocalVariable *withInline(MDLocation *InlinedAt) const {
>> > -    if (InlinedAt == getInlinedAt())
>> > -      return const_cast<MDLocalVariable *>(this);
>> > -    auto Temp = clone();
>> > -    Temp->replaceOperandWith(4, InlinedAt);
>> > -    return replaceWithUniqued(std::move(Temp));
>> > +    return DL && getScope()->getSubprogram() ==
>> DL->getScope()->getSubprogram();
>> >    }
>> > -  MDLocalVariable *withoutInline() const { return withInline(nullptr);
>> }
>> >
>> >    static bool classof(const Metadata *MD) {
>> >      return MD->getMetadataID() == MDLocalVariableKind;
>> >
>> > Modified: llvm/trunk/lib/AsmParser/LLParser.cpp
>> > URL:
>> http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/AsmParser/LLParser.cpp?rev=235050&r1=235049&r2=235050&view=diff
>> >
>> ==============================================================================
>> > --- llvm/trunk/lib/AsmParser/LLParser.cpp (original)
>> > +++ llvm/trunk/lib/AsmParser/LLParser.cpp Wed Apr 15 17:29:27 2015
>> > @@ -3680,8 +3680,7 @@ bool LLParser::ParseMDGlobalVariable(MDN
>> >
>> >  /// ParseMDLocalVariable:
>> >  ///   ::= !MDLocalVariable(tag: DW_TAG_arg_variable, scope: !0, name:
>> "foo",
>> > -///                        file: !1, line: 7, type: !2, arg: 2, flags:
>> 7,
>> > -///                        inlinedAt: !3)
>> > +///                        file: !1, line: 7, type: !2, arg: 2, flags:
>> 7)
>> >  bool LLParser::ParseMDLocalVariable(MDNode *&Result, bool IsDistinct) {
>> >  #define VISIT_MD_FIELDS(OPTIONAL, REQUIRED)
>>         \
>> >    REQUIRED(tag, DwarfTagField, );
>>         \
>> > @@ -3691,14 +3690,13 @@ bool LLParser::ParseMDLocalVariable(MDNo
>> >    OPTIONAL(line, LineField, );
>>          \
>> >    OPTIONAL(type, MDField, );
>>          \
>> >    OPTIONAL(arg, MDUnsignedField, (0, UINT8_MAX));
>>         \
>> > -  OPTIONAL(flags, DIFlagField, );
>>         \
>> > -  OPTIONAL(inlinedAt, MDField, );
>> > +  OPTIONAL(flags, DIFlagField, );
>> >    PARSE_MD_FIELDS();
>> >  #undef VISIT_MD_FIELDS
>> >
>> > -  Result = GET_OR_DISTINCT(
>> > -      MDLocalVariable, (Context, tag.Val, scope.Val, name.Val,
>> file.Val,
>> > -                        line.Val, type.Val, arg.Val, flags.Val,
>> inlinedAt.Val));
>> > +  Result = GET_OR_DISTINCT(MDLocalVariable,
>> > +                           (Context, tag.Val, scope.Val, name.Val,
>> file.Val,
>> > +                            line.Val, type.Val, arg.Val, flags.Val));
>> >    return false;
>> >  }
>> >
>> >
>> > Modified: llvm/trunk/lib/Bitcode/Reader/BitcodeReader.cpp
>> > URL:
>> http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Bitcode/Reader/BitcodeReader.cpp?rev=235050&r1=235049&r2=235050&view=diff
>> >
>> ==============================================================================
>> > --- llvm/trunk/lib/Bitcode/Reader/BitcodeReader.cpp (original)
>> > +++ llvm/trunk/lib/Bitcode/Reader/BitcodeReader.cpp Wed Apr 15 17:29:27
>> 2015
>> > @@ -1911,7 +1911,8 @@ std::error_code BitcodeReader::ParseMeta
>> >        break;
>> >      }
>> >      case bitc::METADATA_LOCAL_VAR: {
>> > -      if (Record.size() != 10)
>> > +      // 10th field is for the obseleted 'inlinedAt:' field.
>> > +      if (Record.size() != 9 && Record.size() != 10)
>> >          return Error("Invalid record");
>> >
>> >        MDValueList.AssignValue(
>> > @@ -1919,7 +1920,7 @@ std::error_code BitcodeReader::ParseMeta
>> >                            (Context, Record[1], getMDOrNull(Record[2]),
>> >                             getMDString(Record[3]),
>> getMDOrNull(Record[4]),
>> >                             Record[5], getMDOrNull(Record[6]),
>> Record[7],
>> > -                           Record[8], getMDOrNull(Record[9]))),
>> > +                           Record[8])),
>> >            NextMDValueNo++);
>> >        break;
>> >      }
>> >
>> > Modified: llvm/trunk/lib/Bitcode/Writer/BitcodeWriter.cpp
>> > URL:
>> http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Bitcode/Writer/BitcodeWriter.cpp?rev=235050&r1=235049&r2=235050&view=diff
>> >
>> ==============================================================================
>> > --- llvm/trunk/lib/Bitcode/Writer/BitcodeWriter.cpp (original)
>> > +++ llvm/trunk/lib/Bitcode/Writer/BitcodeWriter.cpp Wed Apr 15 17:29:27
>> 2015
>> > @@ -1085,7 +1085,6 @@ static void WriteMDLocalVariable(const M
>> >    Record.push_back(VE.getMetadataOrNullID(N->getType()));
>> >    Record.push_back(N->getArg());
>> >    Record.push_back(N->getFlags());
>> > -  Record.push_back(VE.getMetadataOrNullID(N->getInlinedAt()));
>> >
>> >    Stream.EmitRecord(bitc::METADATA_LOCAL_VAR, Record, Abbrev);
>> >    Record.clear();
>> >
>> > Modified:
>> llvm/trunk/lib/CodeGen/AsmPrinter/DbgValueHistoryCalculator.cpp
>> > URL:
>> http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CodeGen/AsmPrinter/DbgValueHistoryCalculator.cpp?rev=235050&r1=235049&r2=235050&view=diff
>> >
>> ==============================================================================
>> > --- llvm/trunk/lib/CodeGen/AsmPrinter/DbgValueHistoryCalculator.cpp
>> (original)
>> > +++ llvm/trunk/lib/CodeGen/AsmPrinter/DbgValueHistoryCalculator.cpp Wed
>> Apr 15 17:29:27 2015
>> > @@ -33,7 +33,7 @@ static unsigned isDescribedByReg(const M
>> >    return MI.getOperand(0).isReg() ? MI.getOperand(0).getReg() : 0;
>> >  }
>> >
>> > -void DbgValueHistoryMap::startInstrRange(const MDNode *Var,
>> > +void DbgValueHistoryMap::startInstrRange(InlinedVariable Var,
>> >                                           const MachineInstr &MI) {
>> >    // Instruction range should start with a DBG_VALUE instruction for
>> the
>> >    // variable.
>> > @@ -48,7 +48,7 @@ void DbgValueHistoryMap::startInstrRange
>> >    Ranges.push_back(std::make_pair(&MI, nullptr));
>> >  }
>> >
>> > -void DbgValueHistoryMap::endInstrRange(const MDNode *Var,
>> > +void DbgValueHistoryMap::endInstrRange(InlinedVariable Var,
>> >                                         const MachineInstr &MI) {
>> >    auto &Ranges = VarInstrRanges[Var];
>> >    // Verify that the current instruction range is not yet closed.
>> > @@ -59,7 +59,7 @@ void DbgValueHistoryMap::endInstrRange(c
>> >    Ranges.back().second = &MI;
>> >  }
>> >
>> > -unsigned DbgValueHistoryMap::getRegisterForVar(const MDNode *Var)
>> const {
>> > +unsigned DbgValueHistoryMap::getRegisterForVar(InlinedVariable Var)
>> const {
>> >    const auto &I = VarInstrRanges.find(Var);
>> >    if (I == VarInstrRanges.end())
>> >      return 0;
>> > @@ -71,12 +71,13 @@ unsigned DbgValueHistoryMap::getRegister
>> >
>> >  namespace {
>> >  // Maps physreg numbers to the variables they describe.
>> > -typedef std::map<unsigned, SmallVector<const MDNode *, 1>>
>> RegDescribedVarsMap;
>> > +typedef DbgValueHistoryMap::InlinedVariable InlinedVariable;
>> > +typedef std::map<unsigned, SmallVector<InlinedVariable, 1>>
>> RegDescribedVarsMap;
>> >  }
>> >
>> >  // \brief Claim that @Var is not described by @RegNo anymore.
>> > -static void dropRegDescribedVar(RegDescribedVarsMap &RegVars,
>> > -                                unsigned RegNo, const MDNode *Var) {
>> > +static void dropRegDescribedVar(RegDescribedVarsMap &RegVars, unsigned
>> RegNo,
>> > +                                InlinedVariable Var) {
>> >    const auto &I = RegVars.find(RegNo);
>> >    assert(RegNo != 0U && I != RegVars.end());
>> >    auto &VarSet = I->second;
>> > @@ -89,8 +90,8 @@ static void dropRegDescribedVar(RegDescr
>> >  }
>> >
>> >  // \brief Claim that @Var is now described by @RegNo.
>> > -static void addRegDescribedVar(RegDescribedVarsMap &RegVars,
>> > -                               unsigned RegNo, const MDNode *Var) {
>> > +static void addRegDescribedVar(RegDescribedVarsMap &RegVars, unsigned
>> RegNo,
>> > +                               InlinedVariable Var) {
>> >    assert(RegNo != 0U);
>> >    auto &VarSet = RegVars[RegNo];
>> >    assert(std::find(VarSet.begin(), VarSet.end(), Var) == VarSet.end());
>> > @@ -203,9 +204,13 @@ void llvm::calculateDbgValueHistory(cons
>> >        // Use the base variable (without any DW_OP_piece expressions)
>> >        // as index into History. The full variables including the
>> >        // piece expressions are attached to the MI.
>> > -      DIVariable Var = MI.getDebugVariable();
>> > -      assert(Var->isValidLocationForIntrinsic(MI.getDebugLoc()) &&
>> > +      MDLocalVariable *RawVar = MI.getDebugVariable();
>> > +      assert(RawVar->isValidLocationForIntrinsic(MI.getDebugLoc()) &&
>> >               "Expected inlined-at fields to agree");
>> > +      MDLocation *IA = nullptr;
>> > +      if (MDLocation *Loc = MI.getDebugLoc())
>> > +        IA = Loc->getInlinedAt();
>> > +      InlinedVariable Var(RawVar, IA);
>> >
>> >        if (unsigned PrevReg = Result.getRegisterForVar(Var))
>> >          dropRegDescribedVar(RegVars, PrevReg, Var);
>> >
>> > Modified: llvm/trunk/lib/CodeGen/AsmPrinter/DbgValueHistoryCalculator.h
>> > URL:
>> http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CodeGen/AsmPrinter/DbgValueHistoryCalculator.h?rev=235050&r1=235049&r2=235050&view=diff
>> >
>> ==============================================================================
>> > --- llvm/trunk/lib/CodeGen/AsmPrinter/DbgValueHistoryCalculator.h
>> (original)
>> > +++ llvm/trunk/lib/CodeGen/AsmPrinter/DbgValueHistoryCalculator.h Wed
>> Apr 15 17:29:27 2015
>> > @@ -17,7 +17,8 @@ namespace llvm {
>> >
>> >  class MachineFunction;
>> >  class MachineInstr;
>> > -class MDNode;
>> > +class MDLocalVariable;
>> > +class MDLocation;
>> >  class TargetRegisterInfo;
>> >
>> >  // For each user variable, keep a list of instruction ranges where
>> this variable
>> > @@ -31,16 +32,19 @@ class DbgValueHistoryMap {
>> >  public:
>> >    typedef std::pair<const MachineInstr *, const MachineInstr *>
>> InstrRange;
>> >    typedef SmallVector<InstrRange, 4> InstrRanges;
>> > -  typedef MapVector<const MDNode *, InstrRanges> InstrRangesMap;
>> > +  typedef std::pair<const MDLocalVariable *, const MDLocation *>
>> > +      InlinedVariable;
>> > +  typedef MapVector<InlinedVariable, InstrRanges> InstrRangesMap;
>> > +
>> >  private:
>> >    InstrRangesMap VarInstrRanges;
>> >
>> >  public:
>> > -  void startInstrRange(const MDNode *Var, const MachineInstr &MI);
>> > -  void endInstrRange(const MDNode *Var, const MachineInstr &MI);
>> > +  void startInstrRange(InlinedVariable Var, const MachineInstr &MI);
>> > +  void endInstrRange(InlinedVariable Var, const MachineInstr &MI);
>> >    // Returns register currently describing @Var. If @Var is currently
>> >    // unaccessible or is not described by a register, returns 0.
>> > -  unsigned getRegisterForVar(const MDNode *Var) const;
>> > +  unsigned getRegisterForVar(InlinedVariable Var) const;
>> >
>> >    bool empty() const { return VarInstrRanges.empty(); }
>> >    void clear() { VarInstrRanges.clear(); }
>> >
>> > Modified: llvm/trunk/lib/CodeGen/AsmPrinter/DwarfCompileUnit.cpp
>> > URL:
>> http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CodeGen/AsmPrinter/DwarfCompileUnit.cpp?rev=235050&r1=235049&r2=235050&view=diff
>> >
>> ==============================================================================
>> > --- llvm/trunk/lib/CodeGen/AsmPrinter/DwarfCompileUnit.cpp (original)
>> > +++ llvm/trunk/lib/CodeGen/AsmPrinter/DwarfCompileUnit.cpp Wed Apr 15
>> 17:29:27 2015
>> > @@ -689,7 +689,7 @@ void DwarfCompileUnit::collectDeadVariab
>> >      SPDIE = getDIE(SP);
>> >    assert(SPDIE);
>> >    for (DIVariable DV : Variables) {
>> > -    DbgVariable NewVar(DV, DIExpression(), DD);
>> > +    DbgVariable NewVar(DV, nullptr, DIExpression(), DD);
>> >      auto VariableDie = constructVariableDIE(NewVar);
>> >      applyVariableAttributes(NewVar, *VariableDie);
>> >      SPDIE->addChild(std::move(VariableDie));
>> >
>> > Modified: llvm/trunk/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
>> > URL:
>> http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CodeGen/AsmPrinter/DwarfDebug.cpp?rev=235050&r1=235049&r2=235050&view=diff
>> >
>> ==============================================================================
>> > --- llvm/trunk/lib/CodeGen/AsmPrinter/DwarfDebug.cpp (original)
>> > +++ llvm/trunk/lib/CodeGen/AsmPrinter/DwarfDebug.cpp Wed Apr 15
>> 17:29:27 2015
>> > @@ -489,7 +489,8 @@ void DwarfDebug::finishVariableDefinitio
>> >      // DIE::getUnit isn't simple - it walks parent pointers, etc.
>> >      DwarfCompileUnit *Unit = lookupUnit(VariableDie->getUnit());
>> >      assert(Unit);
>> > -    DbgVariable *AbsVar =
>> getExistingAbstractVariable(Var->getVariable());
>> > +    DbgVariable *AbsVar = getExistingAbstractVariable(
>> > +        InlinedVariable(Var->getVariable(), Var->getInlinedAt()));
>> >      if (AbsVar && AbsVar->getDIE()) {
>> >        Unit->addDIEEntry(*VariableDie, dwarf::DW_AT_abstract_origin,
>> >                          *AbsVar->getDIE());
>> > @@ -660,48 +661,43 @@ void DwarfDebug::endModule() {
>> >  }
>> >
>> >  // Find abstract variable, if any, associated with Var.
>> > -DbgVariable *DwarfDebug::getExistingAbstractVariable(const DIVariable
>> &DV,
>> > +DbgVariable *DwarfDebug::getExistingAbstractVariable(InlinedVariable
>> IV,
>> >                                                       DIVariable
>> &Cleansed) {
>> > -  LLVMContext &Ctx = DV->getContext();
>> >    // More then one inlined variable corresponds to one abstract
>> variable.
>> > -  // FIXME: This duplication of variables when inlining should
>> probably be
>> > -  // removed. It's done to allow each DIVariable to describe its
>> location
>> > -  // because the DebugLoc on the dbg.value/declare isn't accurate. We
>> should
>> > -  // make it accurate then remove this duplication/cleansing stuff.
>> > -  Cleansed = cleanseInlinedVariable(DV, Ctx);
>> > +  Cleansed = IV.first;
>> >    auto I = AbstractVariables.find(Cleansed);
>> >    if (I != AbstractVariables.end())
>> >      return I->second.get();
>> >    return nullptr;
>> >  }
>> >
>> > -DbgVariable *DwarfDebug::getExistingAbstractVariable(const DIVariable
>> &DV) {
>> > +DbgVariable *DwarfDebug::getExistingAbstractVariable(InlinedVariable
>> IV) {
>> >    DIVariable Cleansed;
>> > -  return getExistingAbstractVariable(DV, Cleansed);
>> > +  return getExistingAbstractVariable(IV, Cleansed);
>> >  }
>> >
>> >  void DwarfDebug::createAbstractVariable(const DIVariable &Var,
>> >                                          LexicalScope *Scope) {
>> > -  auto AbsDbgVariable = make_unique<DbgVariable>(Var, DIExpression(),
>> this);
>> > +  auto AbsDbgVariable =
>> > +      make_unique<DbgVariable>(Var, nullptr, DIExpression(), this);
>> >    InfoHolder.addScopeVariable(Scope, AbsDbgVariable.get());
>> >    AbstractVariables[Var] = std::move(AbsDbgVariable);
>> >  }
>> >
>> > -void DwarfDebug::ensureAbstractVariableIsCreated(const DIVariable &DV,
>> > +void DwarfDebug::ensureAbstractVariableIsCreated(InlinedVariable IV,
>> >                                                   const MDNode
>> *ScopeNode) {
>> > -  DIVariable Cleansed = DV;
>> > -  if (getExistingAbstractVariable(DV, Cleansed))
>> > +  DIVariable Cleansed;
>> > +  if (getExistingAbstractVariable(IV, Cleansed))
>> >      return;
>> >
>> >    createAbstractVariable(Cleansed, LScopes.getOrCreateAbstractScope(
>> >                                         cast<MDLocalScope>(ScopeNode)));
>> >  }
>> >
>> > -void
>> > -DwarfDebug::ensureAbstractVariableIsCreatedIfScoped(const DIVariable
>> &DV,
>> > -                                                    const MDNode
>> *ScopeNode) {
>> > -  DIVariable Cleansed = DV;
>> > -  if (getExistingAbstractVariable(DV, Cleansed))
>> > +void DwarfDebug::ensureAbstractVariableIsCreatedIfScoped(
>> > +    InlinedVariable IV, const MDNode *ScopeNode) {
>> > +  DIVariable Cleansed;
>> > +  if (getExistingAbstractVariable(IV, Cleansed))
>> >      return;
>> >
>> >    if (LexicalScope *Scope =
>> > @@ -711,11 +707,12 @@ DwarfDebug::ensureAbstractVariableIsCrea
>> >
>> >  // Collect variable information from side table maintained by MMI.
>> >  void DwarfDebug::collectVariableInfoFromMMITable(
>> > -    SmallPtrSetImpl<const MDNode *> &Processed) {
>> > +    DenseSet<InlinedVariable> &Processed) {
>> >    for (const auto &VI : MMI->getVariableDbgInfo()) {
>> >      if (!VI.Var)
>> >        continue;
>> > -    Processed.insert(VI.Var);
>> > +    InlinedVariable Var(VI.Var, VI.Loc ? VI.Loc->getInlinedAt() :
>> nullptr);
>> > +    Processed.insert(Var);
>> >      LexicalScope *Scope = LScopes.findLexicalScope(VI.Loc);
>> >
>> >      // If variable scope is not found then skip this variable.
>> > @@ -726,8 +723,9 @@ void DwarfDebug::collectVariableInfoFrom
>> >      assert(DV->isValidLocationForIntrinsic(VI.Loc) &&
>> >             "Expected inlined-at fields to agree");
>> >      DIExpression Expr = cast_or_null<MDExpression>(VI.Expr);
>> > -    ensureAbstractVariableIsCreatedIfScoped(DV, Scope->getScopeNode());
>> > -    auto RegVar = make_unique<DbgVariable>(DV, Expr, this, VI.Slot);
>> > +    ensureAbstractVariableIsCreatedIfScoped(Var,
>> Scope->getScopeNode());
>> > +    auto RegVar =
>> > +        make_unique<DbgVariable>(Var.first, Var.second, Expr, this,
>> VI.Slot);
>> >      if (InfoHolder.addScopeVariable(Scope, RegVar.get()))
>> >        ConcreteVariables.push_back(std::move(RegVar));
>> >    }
>> > @@ -877,35 +875,34 @@ DwarfDebug::buildLocationList(SmallVecto
>> >
>> >
>> >  // Find variables for each lexical scope.
>> > -void
>> > -DwarfDebug::collectVariableInfo(DwarfCompileUnit &TheCU, DISubprogram
>> SP,
>> > -                                SmallPtrSetImpl<const MDNode *>
>> &Processed) {
>> > +void DwarfDebug::collectVariableInfo(DwarfCompileUnit &TheCU,
>> DISubprogram SP,
>> > +                                     DenseSet<InlinedVariable>
>> &Processed) {
>> >    // Grab the variable info that was squirreled away in the MMI
>> side-table.
>> >    collectVariableInfoFromMMITable(Processed);
>> >
>> >    for (const auto &I : DbgValues) {
>> > -    DIVariable DV = cast<MDLocalVariable>(I.first);
>> > -    if (Processed.count(DV))
>> > +    InlinedVariable IV = I.first;
>> > +    if (Processed.count(IV))
>> >        continue;
>> >
>> > -    // Instruction ranges, specifying where DV is accessible.
>> > +    // Instruction ranges, specifying where IV is accessible.
>> >      const auto &Ranges = I.second;
>> >      if (Ranges.empty())
>> >        continue;
>> >
>> >      LexicalScope *Scope = nullptr;
>> > -    if (MDLocation *IA = DV->getInlinedAt())
>> > -      Scope = LScopes.findInlinedScope(DV->getScope(), IA);
>> > +    if (const MDLocation *IA = IV.second)
>> > +      Scope = LScopes.findInlinedScope(IV.first->getScope(), IA);
>> >      else
>> > -      Scope = LScopes.findLexicalScope(DV->getScope());
>> > +      Scope = LScopes.findLexicalScope(IV.first->getScope());
>> >      // If variable scope is not found then skip this variable.
>> >      if (!Scope)
>> >        continue;
>> >
>> > -    Processed.insert(DV);
>> > +    Processed.insert(IV);
>> >      const MachineInstr *MInsn = Ranges.front().first;
>> >      assert(MInsn->isDebugValue() && "History must begin with debug
>> value");
>> > -    ensureAbstractVariableIsCreatedIfScoped(DV, Scope->getScopeNode());
>> > +    ensureAbstractVariableIsCreatedIfScoped(IV, Scope->getScopeNode());
>> >      ConcreteVariables.push_back(make_unique<DbgVariable>(MInsn, this));
>> >      DbgVariable *RegVar = ConcreteVariables.back().get();
>> >      InfoHolder.addScopeVariable(Scope, RegVar);
>> > @@ -931,12 +928,14 @@ DwarfDebug::collectVariableInfo(DwarfCom
>> >
>> >    // Collect info for variables that were optimized out.
>> >    for (DIVariable DV : SP->getVariables()) {
>> > -    if (!Processed.insert(DV).second)
>> > +    if (!Processed.insert(InlinedVariable(DV, nullptr)).second)
>> >        continue;
>> >      if (LexicalScope *Scope =
>> LScopes.findLexicalScope(DV->getScope())) {
>> > -      ensureAbstractVariableIsCreatedIfScoped(DV,
>> Scope->getScopeNode());
>> > +      ensureAbstractVariableIsCreatedIfScoped(InlinedVariable(DV,
>> nullptr),
>> > +                                              Scope->getScopeNode());
>> >        DIExpression NoExpr;
>> > -      ConcreteVariables.push_back(make_unique<DbgVariable>(DV, NoExpr,
>> this));
>> > +      ConcreteVariables.push_back(
>> > +          make_unique<DbgVariable>(DV, nullptr, NoExpr, this));
>> >        InfoHolder.addScopeVariable(Scope,
>> ConcreteVariables.back().get());
>> >      }
>> >    }
>> > @@ -1188,7 +1187,7 @@ void DwarfDebug::endFunction(const Machi
>> >    DISubprogram SP = cast<MDSubprogram>(FnScope->getScopeNode());
>> >    DwarfCompileUnit &TheCU = *SPMap.lookup(SP);
>> >
>> > -  SmallPtrSet<const MDNode *, 16> ProcessedVars;
>> > +  DenseSet<InlinedVariable> ProcessedVars;
>> >    collectVariableInfo(TheCU, SP, ProcessedVars);
>> >
>> >    // Add the range of this function to the list of ranges for the CU.
>> > @@ -1218,9 +1217,10 @@ void DwarfDebug::endFunction(const Machi
>> >      DISubprogram SP = cast<MDSubprogram>(AScope->getScopeNode());
>> >      // Collect info for variables that were optimized out.
>> >      for (DIVariable DV : SP->getVariables()) {
>> > -      if (!ProcessedVars.insert(DV).second)
>> > +      if (!ProcessedVars.insert(InlinedVariable(DV, nullptr)).second)
>> >          continue;
>> > -      ensureAbstractVariableIsCreated(DV, DV->getScope());
>> > +      ensureAbstractVariableIsCreated(InlinedVariable(DV, nullptr),
>> > +                                      DV->getScope());
>> >        assert(LScopes.getAbstractScopesList().size() ==
>> NumAbstractScopes
>> >               && "ensureAbstractVariableIsCreated inserted abstract
>> scopes");
>> >      }
>> >
>> > Modified: llvm/trunk/lib/CodeGen/AsmPrinter/DwarfDebug.h
>> > URL:
>> http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CodeGen/AsmPrinter/DwarfDebug.h?rev=235050&r1=235049&r2=235050&view=diff
>> >
>> ==============================================================================
>> > --- llvm/trunk/lib/CodeGen/AsmPrinter/DwarfDebug.h (original)
>> > +++ llvm/trunk/lib/CodeGen/AsmPrinter/DwarfDebug.h Wed Apr 15 17:29:27
>> 2015
>> > @@ -21,6 +21,7 @@
>> >  #include "DwarfAccelTable.h"
>> >  #include "DwarfFile.h"
>> >  #include "llvm/ADT/DenseMap.h"
>> > +#include "llvm/ADT/DenseSet.h"
>> >  #include "llvm/ADT/FoldingSet.h"
>> >  #include "llvm/ADT/MapVector.h"
>> >  #include "llvm/ADT/SmallPtrSet.h"
>> > @@ -74,7 +75,8 @@ public:
>> >  /// - Variables that are described by multiple MMI table entries have
>> multiple
>> >  ///   expressions and frame indices.
>> >  class DbgVariable {
>> > -  DIVariable Var;             /// Variable Descriptor.
>> > +  DIVariable Var;                    /// Variable Descriptor.
>> > +  DILocation IA;                     /// Inlined at location.
>> >    SmallVector<DIExpression, 1> Expr; /// Complex address location
>> expression.
>> >    DIE *TheDIE;                /// Variable DIE.
>> >    unsigned DotDebugLocOffset; /// Offset in DotDebugLocEntries.
>> > @@ -84,9 +86,10 @@ class DbgVariable {
>> >
>> >  public:
>> >    /// Construct a DbgVariable from a DIVariable.
>> > -    DbgVariable(DIVariable V, DIExpression E, DwarfDebug *DD, int FI =
>> ~0)
>> > -    : Var(V), Expr(1, E), TheDIE(nullptr), DotDebugLocOffset(~0U),
>> > -      MInsn(nullptr), DD(DD) {
>> > +  DbgVariable(DIVariable V, DILocation IA, DIExpression E, DwarfDebug
>> *DD,
>> > +              int FI = ~0)
>> > +      : Var(V), IA(IA), Expr(1, E), TheDIE(nullptr),
>> DotDebugLocOffset(~0U),
>> > +        MInsn(nullptr), DD(DD) {
>> >      FrameIndex.push_back(FI);
>> >      assert(!E || E->isValid());
>> >    }
>> > @@ -95,13 +98,18 @@ public:
>> >    /// AbstractVar may be NULL.
>> >    DbgVariable(const MachineInstr *DbgValue, DwarfDebug *DD)
>> >        : Var(DbgValue->getDebugVariable()),
>> > +        IA(DbgValue->getDebugLoc() ?
>> DbgValue->getDebugLoc()->getInlinedAt()
>> > +                                   : nullptr),
>> >          Expr(1, DbgValue->getDebugExpression()), TheDIE(nullptr),
>> >          DotDebugLocOffset(~0U), MInsn(DbgValue), DD(DD) {
>> >      FrameIndex.push_back(~0);
>> > +    if (MDLocation *Loc = DbgValue->getDebugLoc())
>> > +      IA = Loc->getInlinedAt();
>> >    }
>> >
>> >    // Accessors.
>> >    DIVariable getVariable() const { return Var; }
>> > +  DILocation getInlinedAt() const { return IA; }
>> >    const ArrayRef<DIExpression> getExpression() const { return Expr; }
>> >    void setDIE(DIE &D) { TheDIE = &D; }
>> >    DIE *getDIE() const { return TheDIE; }
>> > @@ -115,6 +123,7 @@ public:
>> >      assert(  DotDebugLocOffset == ~0U &&   !MInsn && "not an MMI
>> entry");
>> >      assert(V.DotDebugLocOffset == ~0U && !V.MInsn && "not an MMI
>> entry");
>> >      assert(V.Var == Var && "conflicting DIVariable");
>> > +    assert(V.IA == IA && "conflicting inlined-at location");
>> >
>> >      if (V.getFrameIndex().back() != ~0) {
>> >        auto E = V.getExpression();
>> > @@ -323,14 +332,16 @@ class DwarfDebug : public AsmPrinterHand
>> >      return InfoHolder.getUnits();
>> >    }
>> >
>> > +  typedef DbgValueHistoryMap::InlinedVariable InlinedVariable;
>> > +
>> >    /// \brief Find abstract variable associated with Var.
>> > -  DbgVariable *getExistingAbstractVariable(const DIVariable &DV,
>> > +  DbgVariable *getExistingAbstractVariable(InlinedVariable IV,
>> >                                             DIVariable &Cleansed);
>> > -  DbgVariable *getExistingAbstractVariable(const DIVariable &DV);
>> > +  DbgVariable *getExistingAbstractVariable(InlinedVariable IV);
>> >    void createAbstractVariable(const DIVariable &DV, LexicalScope
>> *Scope);
>> > -  void ensureAbstractVariableIsCreated(const DIVariable &Var,
>> > +  void ensureAbstractVariableIsCreated(InlinedVariable Var,
>> >                                         const MDNode *Scope);
>> > -  void ensureAbstractVariableIsCreatedIfScoped(const DIVariable &Var,
>> > +  void ensureAbstractVariableIsCreatedIfScoped(InlinedVariable Var,
>> >                                                 const MDNode *Scope);
>> >
>> >    /// \brief Construct a DIE for this abstract scope.
>> > @@ -460,7 +471,7 @@ class DwarfDebug : public AsmPrinterHand
>> >
>> >    /// \brief Populate LexicalScope entries with variables' info.
>> >    void collectVariableInfo(DwarfCompileUnit &TheCU, DISubprogram SP,
>> > -                           SmallPtrSetImpl<const MDNode *>
>> &ProcessedVars);
>> > +                           DenseSet<InlinedVariable> &ProcessedVars);
>> >
>> >    /// \brief Build the location list for all DBG_VALUEs in the
>> >    /// function that describe the same variable.
>> > @@ -469,7 +480,7 @@ class DwarfDebug : public AsmPrinterHand
>> >
>> >    /// \brief Collect variable information from the side table
>> maintained
>> >    /// by MMI.
>> > -  void collectVariableInfoFromMMITable(SmallPtrSetImpl<const MDNode *>
>> &P);
>> > +  void collectVariableInfoFromMMITable(DenseSet<InlinedVariable> &P);
>> >
>> >    /// \brief Ensure that a label will be emitted before MI.
>> >    void requestLabelBeforeInsn(const MachineInstr *MI) {
>> >
>> > Modified: llvm/trunk/lib/CodeGen/LiveDebugVariables.cpp
>> > URL:
>> http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CodeGen/LiveDebugVariables.cpp?rev=235050&r1=235049&r2=235050&view=diff
>> >
>> ==============================================================================
>> > --- llvm/trunk/lib/CodeGen/LiveDebugVariables.cpp (original)
>> > +++ llvm/trunk/lib/CodeGen/LiveDebugVariables.cpp Wed Apr 15 17:29:27
>> 2015
>> > @@ -378,12 +378,13 @@ static void printDebugLoc(DebugLoc DL, r
>> >    CommentOS << " ]";
>> >  }
>> >
>> > -static void printExtendedName(raw_ostream &OS, const MDLocalVariable
>> *V) {
>> > +static void printExtendedName(raw_ostream &OS, const MDLocalVariable
>> *V,
>> > +                              const MDLocation *DL) {
>> >    const LLVMContext &Ctx = V->getContext();
>> >    StringRef Res = V->getName();
>> >    if (!Res.empty())
>> >      OS << Res << "," << V->getLine();
>> > -  if (auto *InlinedAt = V->getInlinedAt()) {
>> > +  if (auto *InlinedAt = DL->getInlinedAt()) {
>> >      if (DebugLoc InlinedAtDL = InlinedAt) {
>> >        OS << " @[";
>> >        printDebugLoc(InlinedAtDL, OS, Ctx);
>> > @@ -395,7 +396,7 @@ static void printExtendedName(raw_ostrea
>> >  void UserValue::print(raw_ostream &OS, const TargetRegisterInfo *TRI) {
>> >    DIVariable DV = cast<MDLocalVariable>(Variable);
>> >    OS << "!\"";
>> > -  printExtendedName(OS, DV);
>> > +  printExtendedName(OS, DV, dl);
>> >
>> >    OS << "\"\t";
>> >    if (offset)
>> >
>> > Modified: llvm/trunk/lib/CodeGen/MachineInstr.cpp
>> > URL:
>> http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CodeGen/MachineInstr.cpp?rev=235050&r1=235049&r2=235050&view=diff
>> >
>> ==============================================================================
>> > --- llvm/trunk/lib/CodeGen/MachineInstr.cpp (original)
>> > +++ llvm/trunk/lib/CodeGen/MachineInstr.cpp Wed Apr 15 17:29:27 2015
>> > @@ -1712,7 +1712,7 @@ void MachineInstr::print(raw_ostream &OS
>> >      if (!HaveSemi) OS << ";";
>> >      DIVariable DV = cast<MDLocalVariable>(getOperand(e -
>> 2).getMetadata());
>> >      OS << " line no:" <<  DV->getLine();
>> > -    if (auto *InlinedAt = DV->getInlinedAt()) {
>> > +    if (auto *InlinedAt = debugLoc->getInlinedAt()) {
>> >        DebugLoc InlinedAtDL(InlinedAt);
>> >        if (InlinedAtDL && MF) {
>> >          OS << " inlined @[ ";
>> >
>> > Modified: llvm/trunk/lib/IR/AsmWriter.cpp
>> > URL:
>> http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/IR/AsmWriter.cpp?rev=235050&r1=235049&r2=235050&view=diff
>> >
>> ==============================================================================
>> > --- llvm/trunk/lib/IR/AsmWriter.cpp (original)
>> > +++ llvm/trunk/lib/IR/AsmWriter.cpp Wed Apr 15 17:29:27 2015
>> > @@ -1745,7 +1745,6 @@ static void writeMDLocalVariable(raw_ost
>> >    Printer.printInt("line", N->getLine());
>> >    Printer.printMetadata("type", N->getRawType());
>> >    Printer.printDIFlags("flags", N->getFlags());
>> > -  Printer.printMetadata("inlinedAt", N->getRawInlinedAt());
>> >    Out << ")";
>> >  }
>> >
>> >
>> > Modified: llvm/trunk/lib/IR/DebugInfo.cpp
>> > URL:
>> http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/IR/DebugInfo.cpp?rev=235050&r1=235049&r2=235050&view=diff
>> >
>> ==============================================================================
>> > --- llvm/trunk/lib/IR/DebugInfo.cpp (original)
>> > +++ llvm/trunk/lib/IR/DebugInfo.cpp Wed Apr 15 17:29:27 2015
>> > @@ -35,16 +35,6 @@ using namespace llvm::dwarf;
>> >
>> >  DIScopeRef DIScope::getRef() const { return MDScopeRef::get(get()); }
>> >
>> > -DIVariable llvm::createInlinedVariable(MDNode *DV, MDNode
>> *InlinedScope,
>> > -                                       LLVMContext &VMContext) {
>> > -  return cast<MDLocalVariable>(DV)
>> > -      ->withInline(cast_or_null<MDLocation>(InlinedScope));
>> > -}
>> > -
>> > -DIVariable llvm::cleanseInlinedVariable(MDNode *DV, LLVMContext
>> &VMContext) {
>> > -  return cast<MDLocalVariable>(DV)->withoutInline();
>> > -}
>> > -
>> >  DISubprogram llvm::getDISubprogram(const MDNode *Scope) {
>> >    if (auto *LocalScope = dyn_cast_or_null<MDLocalScope>(Scope))
>> >      return LocalScope->getSubprogram();
>> >
>> > Modified: llvm/trunk/lib/IR/DebugInfoMetadata.cpp
>> > URL:
>> http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/IR/DebugInfoMetadata.cpp?rev=235050&r1=235049&r2=235050&view=diff
>> >
>> ==============================================================================
>> > --- llvm/trunk/lib/IR/DebugInfoMetadata.cpp (original)
>> > +++ llvm/trunk/lib/IR/DebugInfoMetadata.cpp Wed Apr 15 17:29:27 2015
>> > @@ -450,10 +450,12 @@ MDGlobalVariable::getImpl(LLVMContext &C
>> >                         Ops);
>> >  }
>> >
>> > -MDLocalVariable *MDLocalVariable::getImpl(
>> > -    LLVMContext &Context, unsigned Tag, Metadata *Scope, MDString
>> *Name,
>> > -    Metadata *File, unsigned Line, Metadata *Type, unsigned Arg,
>> unsigned Flags,
>> > -    Metadata *InlinedAt, StorageType Storage, bool ShouldCreate) {
>> > +MDLocalVariable *MDLocalVariable::getImpl(LLVMContext &Context,
>> unsigned Tag,
>> > +                                          Metadata *Scope, MDString
>> *Name,
>> > +                                          Metadata *File, unsigned
>> Line,
>> > +                                          Metadata *Type, unsigned Arg,
>> > +                                          unsigned Flags, StorageType
>> Storage,
>> > +                                          bool ShouldCreate) {
>> >    // Truncate Arg to 8 bits.
>> >    //
>> >    // FIXME: This is gross (and should be changed to an assert or
>> removed), but
>> > @@ -463,8 +465,8 @@ MDLocalVariable *MDLocalVariable::getImp
>> >    assert(Scope && "Expected scope");
>> >    assert(isCanonical(Name) && "Expected canonical MDString");
>> >    DEFINE_GETIMPL_LOOKUP(MDLocalVariable, (Tag, Scope, getString(Name),
>> File,
>> > -                                          Line, Type, Arg, Flags,
>> InlinedAt));
>> > -  Metadata *Ops[] = {Scope, Name, File, Type, InlinedAt};
>> > +                                          Line, Type, Arg, Flags));
>> > +  Metadata *Ops[] = {Scope, Name, File, Type};
>> >    DEFINE_GETIMPL_STORE(MDLocalVariable, (Tag, Line, Arg, Flags), Ops);
>> >  }
>> >
>> >
>> > Modified: llvm/trunk/lib/IR/LLVMContextImpl.h
>> > URL:
>> http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/IR/LLVMContextImpl.h?rev=235050&r1=235049&r2=235050&view=diff
>> >
>> ==============================================================================
>> > --- llvm/trunk/lib/IR/LLVMContextImpl.h (original)
>> > +++ llvm/trunk/lib/IR/LLVMContextImpl.h Wed Apr 15 17:29:27 2015
>> > @@ -736,29 +736,24 @@ template <> struct MDNodeKeyImpl<MDLocal
>> >    Metadata *Type;
>> >    unsigned Arg;
>> >    unsigned Flags;
>> > -  Metadata *InlinedAt;
>> >
>> >    MDNodeKeyImpl(unsigned Tag, Metadata *Scope, StringRef Name,
>> Metadata *File,
>> > -                unsigned Line, Metadata *Type, unsigned Arg, unsigned
>> Flags,
>> > -                Metadata *InlinedAt)
>> > +                unsigned Line, Metadata *Type, unsigned Arg, unsigned
>> Flags)
>> >        : Tag(Tag), Scope(Scope), Name(Name), File(File), Line(Line),
>> Type(Type),
>> > -        Arg(Arg), Flags(Flags), InlinedAt(InlinedAt) {}
>> > +        Arg(Arg), Flags(Flags) {}
>> >    MDNodeKeyImpl(const MDLocalVariable *N)
>> >        : Tag(N->getTag()), Scope(N->getRawScope()), Name(N->getName()),
>> >          File(N->getRawFile()), Line(N->getLine()),
>> Type(N->getRawType()),
>> > -        Arg(N->getArg()), Flags(N->getFlags()),
>> > -        InlinedAt(N->getRawInlinedAt()) {}
>> > +        Arg(N->getArg()), Flags(N->getFlags()) {}
>> >
>> >    bool isKeyOf(const MDLocalVariable *RHS) const {
>> >      return Tag == RHS->getTag() && Scope == RHS->getRawScope() &&
>> >             Name == RHS->getName() && File == RHS->getRawFile() &&
>> >             Line == RHS->getLine() && Type == RHS->getRawType() &&
>> > -           Arg == RHS->getArg() && Flags == RHS->getFlags() &&
>> > -           InlinedAt == RHS->getRawInlinedAt();
>> > +           Arg == RHS->getArg() && Flags == RHS->getFlags();
>> >    }
>> >    unsigned getHashValue() const {
>> > -    return hash_combine(Tag, Scope, Name, File, Line, Type, Arg, Flags,
>> > -                        InlinedAt);
>> > +    return hash_combine(Tag, Scope, Name, File, Line, Type, Arg,
>> Flags);
>> >    }
>> >  };
>> >
>> >
>> > Modified: llvm/trunk/lib/IR/Verifier.cpp
>> > URL:
>> http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/IR/Verifier.cpp?rev=235050&r1=235049&r2=235050&view=diff
>> >
>> ==============================================================================
>> > --- llvm/trunk/lib/IR/Verifier.cpp (original)
>> > +++ llvm/trunk/lib/IR/Verifier.cpp Wed Apr 15 17:29:27 2015
>> > @@ -1075,9 +1075,6 @@ void Verifier::visitMDLocalVariable(cons
>> >           "invalid tag", &N);
>> >    Assert(N.getRawScope() && isa<MDLocalScope>(N.getRawScope()),
>> >           "local variable requires a valid scope", &N, N.getRawScope());
>> > -  if (auto *IA = N.getRawInlinedAt())
>> > -    Assert(isa<MDLocation>(IA), "local variable requires a valid
>> scope", &N,
>> > -           IA);
>> >  }
>> >
>> >  void Verifier::visitMDExpression(const MDExpression &N) {
>> > @@ -3401,17 +3398,12 @@ void Verifier::visitDbgIntrinsic(StringR
>> >    BasicBlock *BB = DII.getParent();
>> >    Function *F = BB ? BB->getParent() : nullptr;
>> >
>> > -  // The inlined-at attachments for variables and !dbg attachments
>> must agree.
>> > +  // The scopes for variables and !dbg attachments must agree.
>> >    MDLocalVariable *Var = DII.getVariable();
>> > -  MDLocation *VarIA = Var->getInlinedAt();
>> >    MDLocation *Loc = DII.getDebugLoc();
>> >    Assert(Loc, "llvm.dbg." + Kind + " intrinsic requires a !dbg
>> attachment",
>> >           &DII, BB, F);
>> >
>> > -  MDLocation *LocIA = Loc->getInlinedAt();
>> > -  Assert(VarIA == LocIA, "mismatched variable and !dbg inlined-at",
>> &DII, BB, F,
>> > -         Var, VarIA, Loc, LocIA);
>> > -
>> >    MDSubprogram *VarSP = getSubprogram(Var->getRawScope());
>> >    MDSubprogram *LocSP = getSubprogram(Loc->getRawScope());
>> >    if (!VarSP || !LocSP)
>> >
>> > Modified: llvm/trunk/lib/Transforms/Utils/InlineFunction.cpp
>> > URL:
>> http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Transforms/Utils/InlineFunction.cpp?rev=235050&r1=235049&r2=235050&view=diff
>> >
>> ==============================================================================
>> > --- llvm/trunk/lib/Transforms/Utils/InlineFunction.cpp (original)
>> > +++ llvm/trunk/lib/Transforms/Utils/InlineFunction.cpp Wed Apr 15
>> 17:29:27 2015
>> > @@ -904,19 +904,6 @@ static void fixupLineNumbers(Function *F
>> >          BI->setDebugLoc(TheCallDL);
>> >        } else {
>> >          BI->setDebugLoc(updateInlinedAtInfo(DL, InlinedAtNode,
>> BI->getContext(), IANodes));
>> > -        if (DbgValueInst *DVI = dyn_cast<DbgValueInst>(BI)) {
>> > -          LLVMContext &Ctx = BI->getContext();
>> > -          MDNode *InlinedAt = BI->getDebugLoc().getInlinedAt();
>> > -          DVI->setOperand(2, MetadataAsValue::get(
>> > -                                 Ctx,
>> createInlinedVariable(DVI->getVariable(),
>> > -                                                            InlinedAt,
>> Ctx)));
>> > -        } else if (DbgDeclareInst *DDI = dyn_cast<DbgDeclareInst>(BI))
>> {
>> > -          LLVMContext &Ctx = BI->getContext();
>> > -          MDNode *InlinedAt = BI->getDebugLoc().getInlinedAt();
>> > -          DDI->setOperand(1, MetadataAsValue::get(
>> > -                                 Ctx,
>> createInlinedVariable(DDI->getVariable(),
>> > -                                                            InlinedAt,
>> Ctx)));
>> > -        }
>> >        }
>> >      }
>> >    }
>> >
>> > Modified: llvm/trunk/test/Assembler/mdlocalvariable.ll
>> > URL:
>> http://llvm.org/viewvc/llvm-project/llvm/trunk/test/Assembler/mdlocalvariable.ll?rev=235050&r1=235049&r2=235050&view=diff
>> >
>> ==============================================================================
>> > --- llvm/trunk/test/Assembler/mdlocalvariable.ll (original)
>> > +++ llvm/trunk/test/Assembler/mdlocalvariable.ll Wed Apr 15 17:29:27
>> 2015
>> > @@ -12,13 +12,13 @@
>> >  !3 = !MDBasicType(name: "int", size: 32, align: 32, encoding:
>> DW_ATE_signed)
>> >  !4 = !MDLocation(scope: !0)
>> >
>> > -; CHECK: !5 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "foo",
>> arg: 3, scope: !0, file: !2, line: 7, type: !3, flags: DIFlagArtificial,
>> inlinedAt: !4)
>> > -; CHECK: !6 = !MDLocalVariable(tag: DW_TAG_auto_variable, name: "foo",
>> scope: !0, file: !2, line: 7, type: !3, flags: DIFlagArtificial, inlinedAt:
>> !4)
>> > +; CHECK: !5 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "foo",
>> arg: 3, scope: !0, file: !2, line: 7, type: !3, flags: DIFlagArtificial)
>> > +; CHECK: !6 = !MDLocalVariable(tag: DW_TAG_auto_variable, name: "foo",
>> scope: !0, file: !2, line: 7, type: !3, flags: DIFlagArtificial)
>> >  !5 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "foo", arg: 3,
>> >                        scope: !0, file: !2, line: 7, type: !3,
>> > -                      flags: DIFlagArtificial, inlinedAt: !4)
>> > +                      flags: DIFlagArtificial)
>> >  !6 = !MDLocalVariable(tag: DW_TAG_auto_variable, name: "foo", scope:
>> !0,
>> > -                      file: !2, line: 7, type: !3, flags:
>> DIFlagArtificial, inlinedAt: !4)
>> > +                      file: !2, line: 7, type: !3, flags:
>> DIFlagArtificial)
>> >
>> >  ; CHECK: !7 = !MDLocalVariable(tag: DW_TAG_arg_variable, arg: 0,
>> scope: !0)
>> >  ; CHECK: !8 = !MDLocalVariable(tag: DW_TAG_auto_variable, scope: !0)
>> >
>> > Modified: llvm/trunk/test/CodeGen/ARM/debug-info-d16-reg.ll
>> > URL:
>> http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/ARM/debug-info-d16-reg.ll?rev=235050&r1=235049&r2=235050&view=diff
>> >
>> ==============================================================================
>> > --- llvm/trunk/test/CodeGen/ARM/debug-info-d16-reg.ll (original)
>> > +++ llvm/trunk/test/CodeGen/ARM/debug-info-d16-reg.ll Wed Apr 15
>> 17:29:27 2015
>> > @@ -82,9 +82,9 @@ declare i32 @puts(i8* nocapture) nounwin
>> >  !20 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "val", line: 4,
>> arg: 2, scope: !9, file: !1, type: !7)
>> >  !21 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "c", line: 4,
>> arg: 3, scope: !9, file: !1, type: !8)
>> >
>> > -!49 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "ptr", line: 4,
>> arg: 1, scope: !9, file: !1, type: !6, inlinedAt: !37)
>> > -!50 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "val", line: 4,
>> arg: 2, scope: !9, file: !1, type: !7, inlinedAt: !37)
>> > -!51 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "c", line: 4,
>> arg: 2, scope: !9, file: !1, type: !8, inlinedAt: !37)
>> > +!49 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "ptr", line: 4,
>> arg: 1, scope: !9, file: !1, type: !6)
>> > +!50 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "val", line: 4,
>> arg: 2, scope: !9, file: !1, type: !7)
>> > +!51 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "c", line: 4,
>> arg: 2, scope: !9, file: !1, type: !8)
>> >
>> >  !22 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "argc", line:
>> 17, arg: 0, scope: !10, file: !1, type: !5)
>> >  !23 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "argv", line:
>> 17, arg: 0, scope: !10, file: !1, type: !13)
>> >
>> > Modified: llvm/trunk/test/CodeGen/ARM/debug-info-s16-reg.ll
>> > URL:
>> http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/ARM/debug-info-s16-reg.ll?rev=235050&r1=235049&r2=235050&view=diff
>> >
>> ==============================================================================
>> > --- llvm/trunk/test/CodeGen/ARM/debug-info-s16-reg.ll (original)
>> > +++ llvm/trunk/test/CodeGen/ARM/debug-info-s16-reg.ll Wed Apr 15
>> 17:29:27 2015
>> > @@ -80,9 +80,9 @@ declare void @llvm.dbg.value(metadata, i
>> >  !12 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "c", line: 4,
>> arg: 3, scope: !0, file: !1, type: !13)
>> >  !13 = !MDBasicType(tag: DW_TAG_base_type, name: "unsigned char", size:
>> 8, align: 8, encoding: DW_ATE_unsigned_char)
>> >
>> > -!58 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "ptr", line: 4,
>> arg: 1, scope: !0, file: !1, type: !9, inlinedAt: !40)
>> > -!60 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "val", line: 4,
>> arg: 2, scope: !0, file: !1, type: !11, inlinedAt: !40)
>> > -!62 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "c", line: 4,
>> arg: 3, scope: !0, file: !1, type: !13, inlinedAt: !40)
>> > +!58 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "ptr", line: 4,
>> arg: 1, scope: !0, file: !1, type: !9)
>> > +!60 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "val", line: 4,
>> arg: 2, scope: !0, file: !1, type: !11)
>> > +!62 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "c", line: 4,
>> arg: 3, scope: !0, file: !1, type: !13)
>> >
>> >  !14 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "ptr", line:
>> 11, arg: 1, scope: !6, file: !1, type: !9)
>> >  !15 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "val", line:
>> 11, arg: 2, scope: !6, file: !1, type: !11)
>> >
>> > Modified:
>> llvm/trunk/test/CodeGen/X86/dbg-changes-codegen-branch-folding.ll
>> > URL:
>> http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/X86/dbg-changes-codegen-branch-folding.ll?rev=235050&r1=235049&r2=235050&view=diff
>> >
>> ==============================================================================
>> > --- llvm/trunk/test/CodeGen/X86/dbg-changes-codegen-branch-folding.ll
>> (original)
>> > +++ llvm/trunk/test/CodeGen/X86/dbg-changes-codegen-branch-folding.ll
>> Wed Apr 15 17:29:27 2015
>> > @@ -169,36 +169,36 @@ attributes #2 = { nounwind readnone }
>> >  !53 = distinct !MDLexicalBlock(line: 14, column: 0, file: !1, scope:
>> !51)
>> >  !54 = !MDLocation(line: 16, scope: !53)
>> >  !55 = !MDLocation(line: 17, scope: !24)
>> > -!56 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "this", arg: 1,
>> flags: DIFlagArtificial | DIFlagObjectPointer, scope: !40, type: !38,
>> inlinedAt: !55)
>> > +!56 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "this", arg: 1,
>> flags: DIFlagArtificial | DIFlagObjectPointer, scope: !40, type: !38)
>> >  !57 = !MDLocation(line: 0, scope: !40, inlinedAt: !55)
>> >  !58 = !{i8* getelementptr inbounds ([1 x i8], [1 x i8]* @.str, i64 0,
>> i64 0)}
>> > -!59 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "value", line:
>> 5, arg: 2, scope: !40, file: !25, type: !15, inlinedAt: !55)
>> > +!59 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "value", line:
>> 5, arg: 2, scope: !40, file: !25, type: !15)
>> >  !60 = !MDLocation(line: 5, scope: !40, inlinedAt: !55)
>> >  !61 = !MDLocation(line: 5, scope: !62, inlinedAt: !55)
>> >  !62 = distinct !MDLexicalBlock(line: 5, column: 0, file: !1, scope:
>> !40)
>> >  !63 = !MDLocation(line: 18, scope: !24)
>> > -!64 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "this", arg: 1,
>> flags: DIFlagArtificial | DIFlagObjectPointer, scope: !40, type: !38,
>> inlinedAt: !63)
>> > +!64 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "this", arg: 1,
>> flags: DIFlagArtificial | DIFlagObjectPointer, scope: !40, type: !38)
>> >  !65 = !MDLocation(line: 0, scope: !40, inlinedAt: !63)
>> > -!66 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "value", line:
>> 5, arg: 2, scope: !40, file: !25, type: !15, inlinedAt: !63)
>> > +!66 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "value", line:
>> 5, arg: 2, scope: !40, file: !25, type: !15)
>> >  !67 = !MDLocation(line: 5, scope: !40, inlinedAt: !63)
>> >  !68 = !MDLocation(line: 5, scope: !62, inlinedAt: !63)
>> >  !69 = !MDLocation(line: 20, scope: !70)
>> >  !70 = distinct !MDLexicalBlock(line: 20, column: 0, file: !1, scope:
>> !24)
>> > -!71 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "this", arg: 1,
>> flags: DIFlagArtificial | DIFlagObjectPointer, scope: !35, type: !38,
>> inlinedAt: !72)
>> > +!71 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "this", arg: 1,
>> flags: DIFlagArtificial | DIFlagObjectPointer, scope: !35, type: !38)
>> >  !72 = !MDLocation(line: 21, scope: !70)
>> >  !73 = !MDLocation(line: 0, scope: !35, inlinedAt: !72)
>> >  !74 = !{i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str1, i64 0,
>> i64 0)}
>> > -!75 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "value", line:
>> 6, arg: 2, scope: !35, file: !25, type: !15, inlinedAt: !72)
>> > +!75 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "value", line:
>> 6, arg: 2, scope: !35, file: !25, type: !15)
>> >  !76 = !MDLocation(line: 6, scope: !35, inlinedAt: !72)
>> > -!77 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "this", arg: 1,
>> flags: DIFlagArtificial | DIFlagObjectPointer, scope: !35, type: !38,
>> inlinedAt: !78)
>> > +!77 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "this", arg: 1,
>> flags: DIFlagArtificial | DIFlagObjectPointer, scope: !35, type: !38)
>> >  !78 = !MDLocation(line: 23, scope: !70)
>> >  !79 = !MDLocation(line: 0, scope: !35, inlinedAt: !78)
>> >  !80 = !{i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str2, i64 0,
>> i64 0)}
>> > -!81 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "value", line:
>> 6, arg: 2, scope: !35, file: !25, type: !15, inlinedAt: !78)
>> > +!81 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "value", line:
>> 6, arg: 2, scope: !35, file: !25, type: !15)
>> >  !82 = !MDLocation(line: 6, scope: !35, inlinedAt: !78)
>> > -!83 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "this", arg: 1,
>> flags: DIFlagArtificial | DIFlagObjectPointer, scope: !35, type: !38,
>> inlinedAt: !84)
>> > +!83 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "this", arg: 1,
>> flags: DIFlagArtificial | DIFlagObjectPointer, scope: !35, type: !38)
>> >  !84 = !MDLocation(line: 24, scope: !24)
>> >  !85 = !MDLocation(line: 0, scope: !35, inlinedAt: !84)
>> > -!86 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "value", line:
>> 6, arg: 2, scope: !35, file: !25, type: !15, inlinedAt: !84)
>> > +!86 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "value", line:
>> 6, arg: 2, scope: !35, file: !25, type: !15)
>> >  !87 = !MDLocation(line: 6, scope: !35, inlinedAt: !84)
>> >  !88 = !MDLocation(line: 25, scope: !24)
>> >
>> > Modified: llvm/trunk/test/CodeGen/X86/stack-protector-dbginfo.ll
>> > URL:
>> http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/X86/stack-protector-dbginfo.ll?rev=235050&r1=235049&r2=235050&view=diff
>> >
>> ==============================================================================
>> > --- llvm/trunk/test/CodeGen/X86/stack-protector-dbginfo.ll (original)
>> > +++ llvm/trunk/test/CodeGen/X86/stack-protector-dbginfo.ll Wed Apr 15
>> 17:29:27 2015
>> > @@ -48,7 +48,7 @@ attributes #0 = { sspreq }
>> >  !20 = !{}
>> >  !21 = !{i32 2, !"Dwarf Version", i32 2}
>> >  !22 = !{i64* getelementptr inbounds ({ i64, [56 x i8] }, { i64, [56 x
>> i8] }* @a, i32 0, i32 0)}
>> > -!23 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "p2", line: 12,
>> arg: 2, scope: !24, file: !10, type: !32, inlinedAt: !38)
>> > +!23 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "p2", line: 12,
>> arg: 2, scope: !24, file: !10, type: !32)
>> >  !24 = !MDSubprogram(name: "min<unsigned long long>", linkageName:
>> "_ZN3__13minIyEERKT_S3_RS1_", line: 12, isLocal: false, isDefinition: true,
>> virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 12,
>> file: !1, scope: !25, type: !27, templateParams: !33, variables: !35)
>> >  !25 = !MDNamespace(name: "__1", line: 1, file: !26, scope: null)
>> >  !26 = !MDFile(filename: "main.cpp", directory: "/Users/matt/ryan_bug")
>> > @@ -85,7 +85,7 @@ attributes #0 = { sspreq }
>> >  !58 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "p3", line: 8,
>> arg: 3, scope: !41, file: !10, type: !44)
>> >  !59 = !MDLocation(line: 13, scope: !24, inlinedAt: !38)
>> >  !63 = !{i32 undef}
>> > -!64 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "p1", line: 1,
>> arg: 2, scope: !65, file: !10, type: !50, inlinedAt: !40)
>> > +!64 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "p1", line: 1,
>> arg: 2, scope: !65, file: !10, type: !50)
>> >  !65 = !MDSubprogram(name: "operator()", linkageName:
>> "_ZN3__11AclERKiS2_", line: 1, isLocal: false, isDefinition: true,
>> virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 2,
>> file: !1, scope: !25, type: !47, declaration: !46, variables: !66)
>> >  !66 = !{!67, !69, !70}
>> >  !67 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "this", arg: 1,
>> flags: DIFlagArtificial | DIFlagObjectPointer, scope: !65, type: !68)
>> >
>> > Modified: llvm/trunk/test/DebugInfo/2010-05-03-OriginDIE.ll
>> > URL:
>> http://llvm.org/viewvc/llvm-project/llvm/trunk/test/DebugInfo/2010-05-03-OriginDIE.ll?rev=235050&r1=235049&r2=235050&view=diff
>> >
>> ==============================================================================
>> > --- llvm/trunk/test/DebugInfo/2010-05-03-OriginDIE.ll (original)
>> > +++ llvm/trunk/test/DebugInfo/2010-05-03-OriginDIE.ll Wed Apr 15
>> 17:29:27 2015
>> > @@ -58,7 +58,7 @@ declare void @uuid_LtoB(i8*, i8*)
>> >  !5 = !MDSubroutineType(types: !6)
>> >  !6 = !{null}
>> >  !7 = !MDLocation(line: 810, scope: !1)
>> > -!8 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "data", line:
>> 201, arg: 0, scope: !9, file: !10, type: !11, inlinedAt: !7)
>> > +!8 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "data", line:
>> 201, arg: 0, scope: !9, file: !10, type: !11)
>> >  !9 = !MDSubprogram(name: "_OSSwapInt64", linkageName: "_OSSwapInt64",
>> line: 202, isLocal: true, isDefinition: true, virtualIndex: 6, isOptimized:
>> false, file: !10, scope: null, type: !5)
>> >  !10 = !MDFile(filename: "OSByteOrder.h", directory:
>> "/usr/include/libkern/ppc")
>> >  !11 = !MDDerivedType(tag: DW_TAG_typedef, name: "uint64_t", line: 59,
>> file: !36, scope: !3, baseType: !13)
>> >
>> > Modified: llvm/trunk/test/DebugInfo/2010-06-29-InlinedFnLocalVar.ll
>> > URL:
>> http://llvm.org/viewvc/llvm-project/llvm/trunk/test/DebugInfo/2010-06-29-InlinedFnLocalVar.ll?rev=235050&r1=235049&r2=235050&view=diff
>> >
>> ==============================================================================
>> > --- llvm/trunk/test/DebugInfo/2010-06-29-InlinedFnLocalVar.ll (original)
>> > +++ llvm/trunk/test/DebugInfo/2010-06-29-InlinedFnLocalVar.ll Wed Apr
>> 15 17:29:27 2015
>> > @@ -37,8 +37,8 @@ entry:
>> >  !9 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "j", line: 9,
>> arg: 0, scope: !0, file: !1, type: !5)
>> >  !10 = !MDLocalVariable(tag: DW_TAG_auto_variable, name: "xyz", line:
>> 10, scope: !11, file: !1, type: !12)
>> >
>> > -!59 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "j", line: 9,
>> arg: 0, scope: !0, file: !1, type: !5, inlinedAt: !17)
>> > -!60 = !MDLocalVariable(tag: DW_TAG_auto_variable, name: "xyz", line:
>> 10, scope: !11, file: !1, type: !12, inlinedAt: !17)
>> > +!59 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "j", line: 9,
>> arg: 0, scope: !0, file: !1, type: !5)
>> > +!60 = !MDLocalVariable(tag: DW_TAG_auto_variable, name: "xyz", line:
>> 10, scope: !11, file: !1, type: !12)
>> >
>> >  !11 = distinct !MDLexicalBlock(line: 9, column: 0, file: !1, scope: !0)
>> >  !12 = !MDCompositeType(tag: DW_TAG_structure_type, name: "X", line:
>> 10, size: 64, align: 32, file: !27, scope: !0, elements: !13)
>> >
>> > Modified: llvm/trunk/test/DebugInfo/AArch64/cfi-eof-prologue.ll
>> > URL:
>> http://llvm.org/viewvc/llvm-project/llvm/trunk/test/DebugInfo/AArch64/cfi-eof-prologue.ll?rev=235050&r1=235049&r2=235050&view=diff
>> >
>> ==============================================================================
>> > --- llvm/trunk/test/DebugInfo/AArch64/cfi-eof-prologue.ll (original)
>> > +++ llvm/trunk/test/DebugInfo/AArch64/cfi-eof-prologue.ll Wed Apr 15
>> 17:29:27 2015
>> > @@ -106,7 +106,7 @@ attributes #3 = { nounwind }
>> >  !42 = !{!"vtable pointer", !43, i64 0}
>> >  !43 = !{!"Simple C/C++ TBAA"}
>> >  !44 = !MDLocation(line: 0, scope: !32)
>> > -!45 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "this", arg: 1,
>> flags: DIFlagArtificial | DIFlagObjectPointer, scope: !28, type: !31,
>> inlinedAt: !46)
>> > +!45 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "this", arg: 1,
>> flags: DIFlagArtificial | DIFlagObjectPointer, scope: !28, type: !31)
>> >  !46 = !MDLocation(line: 9, scope: !32)
>> >  !47 = !MDLocation(line: 0, scope: !28, inlinedAt: !46)
>> >  !48 = !MDLocation(line: 9, scope: !28, inlinedAt: !46)
>> >
>> > Modified: llvm/trunk/test/DebugInfo/AArch64/frameindices.ll
>> > URL:
>> http://llvm.org/viewvc/llvm-project/llvm/trunk/test/DebugInfo/AArch64/frameindices.ll?rev=235050&r1=235049&r2=235050&view=diff
>> >
>> ==============================================================================
>> > --- llvm/trunk/test/DebugInfo/AArch64/frameindices.ll (original)
>> > +++ llvm/trunk/test/DebugInfo/AArch64/frameindices.ll Wed Apr 15
>> 17:29:27 2015
>> > @@ -234,7 +234,7 @@ attributes #5 = { builtin }
>> >  !71 = !MDLocation(line: 15, column: 3, scope: !25, inlinedAt: !66)
>> >  !72 = !MDLocation(line: 16, column: 1, scope: !25, inlinedAt: !66)
>> >  !73 = !MDLocation(line: 17, column: 27, scope: !31)
>> > -!74 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "p1", line: 17,
>> arg: 1, scope: !31, file: !26, type: !"_ZTS1A", inlinedAt: !75)
>> > +!74 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "p1", line: 17,
>> arg: 1, scope: !31, file: !26, type: !"_ZTS1A")
>> >  !75 = distinct !MDLocation(line: 22, column: 3, scope: !34)
>> >  !76 = !MDExpression(DW_OP_bit_piece, 8, 120)
>> >  !77 = !MDLocation(line: 17, column: 12, scope: !31, inlinedAt: !75)
>> >
>> > Modified: llvm/trunk/test/DebugInfo/ARM/cfi-eof-prologue.ll
>> > URL:
>> http://llvm.org/viewvc/llvm-project/llvm/trunk/test/DebugInfo/ARM/cfi-eof-prologue.ll?rev=235050&r1=235049&r2=235050&view=diff
>> >
>> ==============================================================================
>> > --- llvm/trunk/test/DebugInfo/ARM/cfi-eof-prologue.ll (original)
>> > +++ llvm/trunk/test/DebugInfo/ARM/cfi-eof-prologue.ll Wed Apr 15
>> 17:29:27 2015
>> > @@ -109,7 +109,7 @@ attributes #3 = { nounwind }
>> >  !44 = !{!"vtable pointer", !45, i64 0}
>> >  !45 = !{!"Simple C/C++ TBAA"}
>> >  !46 = !MDLocation(line: 0, scope: !32)
>> > -!47 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "this", arg: 1,
>> flags: DIFlagArtificial | DIFlagObjectPointer, scope: !28, type: !31,
>> inlinedAt: !48)
>> > +!47 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "this", arg: 1,
>> flags: DIFlagArtificial | DIFlagObjectPointer, scope: !28, type: !31)
>> >  !48 = !MDLocation(line: 9, scope: !32)
>> >  !49 = !MDLocation(line: 0, scope: !28, inlinedAt: !48)
>> >  !50 = !MDLocation(line: 9, scope: !28, inlinedAt: !48)
>> >
>> > Modified: llvm/trunk/test/DebugInfo/Mips/InlinedFnLocalVar.ll
>> > URL:
>> http://llvm.org/viewvc/llvm-project/llvm/trunk/test/DebugInfo/Mips/InlinedFnLocalVar.ll?rev=235050&r1=235049&r2=235050&view=diff
>> >
>> ==============================================================================
>> > --- llvm/trunk/test/DebugInfo/Mips/InlinedFnLocalVar.ll (original)
>> > +++ llvm/trunk/test/DebugInfo/Mips/InlinedFnLocalVar.ll Wed Apr 15
>> 17:29:27 2015
>> > @@ -37,8 +37,8 @@ entry:
>> >  !9 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "j", line: 9,
>> arg: 0, scope: !0, file: !1, type: !5)
>> >  !10 = !MDLocalVariable(tag: DW_TAG_auto_variable, name: "xyz", line:
>> 10, scope: !11, file: !1, type: !12)
>> >
>> > -!59 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "j", line: 9,
>> arg: 0, scope: !0, file: !1, type: !5, inlinedAt: !17)
>> > -!60 = !MDLocalVariable(tag: DW_TAG_auto_variable, name: "xyz", line:
>> 10, scope: !11, file: !1, type: !12, inlinedAt: !17)
>> > +!59 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "j", line: 9,
>> arg: 0, scope: !0, file: !1, type: !5)
>> > +!60 = !MDLocalVariable(tag: DW_TAG_auto_variable, name: "xyz", line:
>> 10, scope: !11, file: !1, type: !12)
>> >
>> >  !11 = distinct !MDLexicalBlock(line: 9, column: 0, file: !1, scope: !0)
>> >  !12 = !MDCompositeType(tag: DW_TAG_structure_type, name: "X", line:
>> 10, size: 64, align: 32, file: !27, scope: !0, elements: !13)
>> >
>> > Modified: llvm/trunk/test/DebugInfo/PR20038.ll
>> > URL:
>> http://llvm.org/viewvc/llvm-project/llvm/trunk/test/DebugInfo/PR20038.ll?rev=235050&r1=235049&r2=235050&view=diff
>> >
>> ==============================================================================
>> > --- llvm/trunk/test/DebugInfo/PR20038.ll (original)
>> > +++ llvm/trunk/test/DebugInfo/PR20038.ll Wed Apr 15 17:29:27 2015
>> > @@ -155,9 +155,9 @@ attributes #2 = { nounwind readnone }
>> >  !32 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "this", arg: 1,
>> flags: DIFlagArtificial | DIFlagObjectPointer, scope: !16, type: !30)
>> >  !33 = !MDLocation(line: 0, scope: !16, inlinedAt: !21)
>> >
>> > -!129 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "this", arg:
>> 1, flags: DIFlagArtificial | DIFlagObjectPointer, scope: !17, type: !30,
>> inlinedAt: !22)
>> > -!132 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "this", arg:
>> 1, flags: DIFlagArtificial | DIFlagObjectPointer, scope: !16, type: !30,
>> inlinedAt: !21)
>> > -!232 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "this", arg:
>> 1, flags: DIFlagArtificial | DIFlagObjectPointer, scope: !16, type: !30,
>> inlinedAt: !37)
>> > +!129 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "this", arg:
>> 1, flags: DIFlagArtificial | DIFlagObjectPointer, scope: !17, type: !30)
>> > +!132 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "this", arg:
>> 1, flags: DIFlagArtificial | DIFlagObjectPointer, scope: !16, type: !30)
>> > +!232 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "this", arg:
>> 1, flags: DIFlagArtificial | DIFlagObjectPointer, scope: !16, type: !30)
>> >
>> >  !34 = !MDLocation(line: 5, scope: !35)
>> >  !35 = distinct !MDLexicalBlock(line: 5, column: 0, file: !5, scope:
>> !36)
>> >
>> > Modified: llvm/trunk/test/DebugInfo/X86/InlinedFnLocalVar.ll
>> > URL:
>> http://llvm.org/viewvc/llvm-project/llvm/trunk/test/DebugInfo/X86/InlinedFnLocalVar.ll?rev=235050&r1=235049&r2=235050&view=diff
>> >
>> ==============================================================================
>> > --- llvm/trunk/test/DebugInfo/X86/InlinedFnLocalVar.ll (original)
>> > +++ llvm/trunk/test/DebugInfo/X86/InlinedFnLocalVar.ll Wed Apr 15
>> 17:29:27 2015
>> > @@ -37,8 +37,8 @@ entry:
>> >  !9 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "j", line: 9,
>> arg: 0, scope: !0, file: !1, type: !5)
>> >  !10 = !MDLocalVariable(tag: DW_TAG_auto_variable, name: "xyz", line:
>> 10, scope: !11, file: !1, type: !12)
>> >
>> > -!109 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "j", line: 9,
>> arg: 0, scope: !0, file: !1, type: !5, inlinedAt: !17)
>> > -!110 = !MDLocalVariable(tag: DW_TAG_auto_variable, name: "xyz", line:
>> 10, scope: !11, file: !1, type: !12, inlinedAt: !17)
>> > +!109 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "j", line: 9,
>> arg: 0, scope: !0, file: !1, type: !5)
>> > +!110 = !MDLocalVariable(tag: DW_TAG_auto_variable, name: "xyz", line:
>> 10, scope: !11, file: !1, type: !12)
>> >
>> >  !11 = distinct !MDLexicalBlock(line: 9, column: 0, file: !1, scope: !0)
>> >  !12 = !MDCompositeType(tag: DW_TAG_structure_type, name: "X", line:
>> 10, size: 64, align: 32, file: !27, scope: !0, elements: !13)
>> >
>> > Modified: llvm/trunk/test/DebugInfo/X86/dbg-value-inlined-parameter.ll
>> > URL:
>> http://llvm.org/viewvc/llvm-project/llvm/trunk/test/DebugInfo/X86/dbg-value-inlined-parameter.ll?rev=235050&r1=235049&r2=235050&view=diff
>> >
>> ==============================================================================
>> > --- llvm/trunk/test/DebugInfo/X86/dbg-value-inlined-parameter.ll
>> (original)
>> > +++ llvm/trunk/test/DebugInfo/X86/dbg-value-inlined-parameter.ll Wed
>> Apr 15 17:29:27 2015
>> > @@ -61,8 +61,8 @@ declare float* @bar(i32) optsize
>> >
>> >  define void @foobar() nounwind optsize ssp {
>> >  entry:
>> > -  tail call void @llvm.dbg.value(metadata %struct.S1* @p, i64 0,
>> metadata !109, metadata !MDExpression()) nounwind, !dbg !31
>> > -  tail call void @llvm.dbg.value(metadata i32 1, i64 0, metadata !118,
>> metadata !MDExpression()) nounwind, !dbg !35
>> > +  tail call void @llvm.dbg.value(metadata %struct.S1* @p, i64 0,
>> metadata !9, metadata !MDExpression()) nounwind, !dbg !31
>> > +  tail call void @llvm.dbg.value(metadata i32 1, i64 0, metadata !18,
>> metadata !MDExpression()) nounwind, !dbg !35
>> >    store i32 1, i32* getelementptr inbounds (%struct.S1, %struct.S1*
>> @p, i64 0, i32 1), align 8, !dbg !36
>> >    %call.i = tail call float* @bar(i32 1) nounwind optsize, !dbg !37
>> >    store float* %call.i, float** getelementptr inbounds (%struct.S1,
>> %struct.S1* @p, i64 0, i32 0), align 8, !dbg !37
>> > @@ -84,9 +84,6 @@ declare void @llvm.dbg.value(metadata, i
>> >  !7 = !MDSubroutineType(types: !8)
>> >  !8 = !{null}
>> >  !9 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "sp", line: 7,
>> arg: 1, scope: !0, file: !1, type: !10)
>> > -
>> > -!109 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "sp", line: 7,
>> arg: 1, scope: !0, file: !1, type: !10, inlinedAt: !32)
>> > -
>> >  !10 = !MDDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64,
>> scope: !2, baseType: !11)
>> >  !11 = !MDDerivedType(tag: DW_TAG_typedef, name: "S1", line: 4, file:
>> !42, scope: !2, baseType: !12)
>> >  !12 = !MDCompositeType(tag: DW_TAG_structure_type, name: "S1", line:
>> 1, size: 128, align: 64, file: !42, scope: !2, elements: !13)
>> > @@ -96,9 +93,6 @@ declare void @llvm.dbg.value(metadata, i
>> >  !16 = !MDBasicType(tag: DW_TAG_base_type, name: "float", size: 32,
>> align: 32, encoding: DW_ATE_float)
>> >  !17 = !MDDerivedType(tag: DW_TAG_member, name: "nums", line: 3, size:
>> 32, align: 32, offset: 64, file: !42, scope: !1, baseType: !5)
>> >  !18 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "nums", line:
>> 7, arg: 2, scope: !0, file: !1, type: !5)
>> > -
>> > -!118 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "nums", line:
>> 7, arg: 2, scope: !0, file: !1, type: !5, inlinedAt: !32)
>> > -
>> >  !19 = !MDGlobalVariable(name: "p", line: 14, isLocal: false,
>> isDefinition: true, scope: !2, file: !1, type: !11, variable: %struct.S1*
>> @p)
>> >  !20 = !MDLocation(line: 7, column: 13, scope: !0)
>> >  !21 = !MDLocation(line: 7, column: 21, scope: !0)
>> >
>> > Modified: llvm/trunk/test/DebugInfo/X86/debug-ranges-offset.ll
>> > URL:
>> http://llvm.org/viewvc/llvm-project/llvm/trunk/test/DebugInfo/X86/debug-ranges-offset.ll?rev=235050&r1=235049&r2=235050&view=diff
>> >
>> ==============================================================================
>> > --- llvm/trunk/test/DebugInfo/X86/debug-ranges-offset.ll (original)
>> > +++ llvm/trunk/test/DebugInfo/X86/debug-ranges-offset.ll Wed Apr 15
>> 17:29:27 2015
>> > @@ -234,7 +234,7 @@ attributes #4 = { builtin }
>> >  !29 = !MDLocation(line: 7, scope: !4)
>> >  !30 = !MDLocation(line: 4, scope: !4, inlinedAt: !31)
>> >  !31 = !MDLocation(line: 10, scope: !13)
>> > -!32 = !MDLocalVariable(tag: DW_TAG_auto_variable, name: "p", line: 4,
>> scope: !4, file: !5, type: !10, inlinedAt: !31)
>> > +!32 = !MDLocalVariable(tag: DW_TAG_auto_variable, name: "p", line: 4,
>> scope: !4, file: !5, type: !10)
>> >  !33 = !MDLocation(line: 5, scope: !21, inlinedAt: !31)
>> >  !34 = !MDLocation(line: 6, scope: !21, inlinedAt: !31)
>> >  !35 = !MDLocation(line: 7, scope: !4, inlinedAt: !31)
>> >
>> > Modified: llvm/trunk/test/DebugInfo/X86/inline-member-function.ll
>> > URL:
>> http://llvm.org/viewvc/llvm-project/llvm/trunk/test/DebugInfo/X86/inline-member-function.ll?rev=235050&r1=235049&r2=235050&view=diff
>> >
>> ==============================================================================
>> > --- llvm/trunk/test/DebugInfo/X86/inline-member-function.ll (original)
>> > +++ llvm/trunk/test/DebugInfo/X86/inline-member-function.ll Wed Apr 15
>> 17:29:27 2015
>> > @@ -88,8 +88,8 @@ attributes #1 = { nounwind readnone }
>> >  !21 = !{i32 1, !"Debug Info Version", i32 3}
>> >  !22 = !{!"clang version 3.5.0 "}
>> >  !23 = !MDLocation(line: 8, scope: !13)
>> > -!24 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "this", arg: 1,
>> flags: DIFlagArtificial | DIFlagObjectPointer, scope: !17, type: !25,
>> inlinedAt: !23)
>> > +!24 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "this", arg: 1,
>> flags: DIFlagArtificial | DIFlagObjectPointer, scope: !17, type: !25)
>> >  !25 = !MDDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64,
>> baseType: !"_ZTS3foo")
>> >  !26 = !MDLocation(line: 0, scope: !17, inlinedAt: !23)
>> > -!27 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "x", line: 2,
>> arg: 2, scope: !17, file: !14, type: !9, inlinedAt: !23)
>> > +!27 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "x", line: 2,
>> arg: 2, scope: !17, file: !14, type: !9)
>> >  !28 = !MDLocation(line: 2, scope: !17, inlinedAt: !23)
>> >
>> > Modified: llvm/trunk/test/DebugInfo/X86/inline-seldag-test.ll
>> > URL:
>> http://llvm.org/viewvc/llvm-project/llvm/trunk/test/DebugInfo/X86/inline-seldag-test.ll?rev=235050&r1=235049&r2=235050&view=diff
>> >
>> ==============================================================================
>> > --- llvm/trunk/test/DebugInfo/X86/inline-seldag-test.ll (original)
>> > +++ llvm/trunk/test/DebugInfo/X86/inline-seldag-test.ll Wed Apr 15
>> 17:29:27 2015
>> > @@ -67,7 +67,7 @@ attributes #1 = { nounwind readnone }
>> >  !16 = !MDDerivedType(tag: DW_TAG_volatile_type, baseType: !11)
>> >  !17 = !MDLocation(line: 5, scope: !4)
>> >  !18 = !MDLocation(line: 6, column: 7, scope: !4)
>> > -!19 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "y", line: 1,
>> arg: 1, scope: !8, file: !5, type: !11, inlinedAt: !18)
>> > +!19 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "y", line: 1,
>> arg: 1, scope: !8, file: !5, type: !11)
>> >  !20 = !MDLocation(line: 1, scope: !8, inlinedAt: !18)
>> >  !21 = !MDLocation(line: 2, scope: !8, inlinedAt: !18)
>> >  !22 = !MDLocation(line: 7, scope: !4)
>> >
>> > Modified: llvm/trunk/test/DebugInfo/X86/mi-print.ll
>> > URL:
>> http://llvm.org/viewvc/llvm-project/llvm/trunk/test/DebugInfo/X86/mi-print.ll?rev=235050&r1=235049&r2=235050&view=diff
>> >
>> ==============================================================================
>> > --- llvm/trunk/test/DebugInfo/X86/mi-print.ll (original)
>> > +++ llvm/trunk/test/DebugInfo/X86/mi-print.ll Wed Apr 15 17:29:27 2015
>> > @@ -50,7 +50,7 @@ attributes #1 = { nounwind readnone }
>> >  !16 = !{!"clang version 3.7.0 (trunk 233919) (llvm/trunk 233920)"}
>> >  !17 = !MDExpression()
>> >  !18 = !MDLocation(line: 2, column: 13, scope: !4)
>> > -!19 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "x", arg: 1,
>> scope: !10, file: !1, line: 1, type: !7, inlinedAt: !20)
>> > +!19 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "x", arg: 1,
>> scope: !10, file: !1, line: 1, type: !7)
>> >  !20 = distinct !MDLocation(line: 2, column: 25, scope: !4)
>> >  !21 = !MDLocation(line: 1, column: 20, scope: !10, inlinedAt: !20)
>> >  !22 = !MDLocation(line: 2, column: 18, scope: !4)
>> >
>> > Modified: llvm/trunk/test/DebugInfo/X86/nodebug_with_debug_loc.ll
>> > URL:
>> http://llvm.org/viewvc/llvm-project/llvm/trunk/test/DebugInfo/X86/nodebug_with_debug_loc.ll?rev=235050&r1=235049&r2=235050&view=diff
>> >
>> ==============================================================================
>> > --- llvm/trunk/test/DebugInfo/X86/nodebug_with_debug_loc.ll (original)
>> > +++ llvm/trunk/test/DebugInfo/X86/nodebug_with_debug_loc.ll Wed Apr 15
>> 17:29:27 2015
>> > @@ -124,7 +124,7 @@ attributes #3 = { nounwind }
>> >  !24 = !{i32 2, !"Debug Info Version", i32 3}
>> >  !25 = !{!"clang version 3.5.0 "}
>> >  !26 = !MDLocation(line: 15, scope: !11)
>> > -!27 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "lhs", line:
>> 13, arg: 1, scope: !17, file: !12, type: !20, inlinedAt: !28)
>> > +!27 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "lhs", line:
>> 13, arg: 1, scope: !17, file: !12, type: !20)
>> >  !28 = !MDLocation(line: 16, scope: !11)
>> >  !29 = !MDLocation(line: 13, scope: !17, inlinedAt: !28)
>> >  !30 = !MDLocation(line: 17, scope: !11)
>> >
>> > Modified: llvm/trunk/test/DebugInfo/X86/nophysreg.ll
>> > URL:
>> http://llvm.org/viewvc/llvm-project/llvm/trunk/test/DebugInfo/X86/nophysreg.ll?rev=235050&r1=235049&r2=235050&view=diff
>> >
>> ==============================================================================
>> > --- llvm/trunk/test/DebugInfo/X86/nophysreg.ll (original)
>> > +++ llvm/trunk/test/DebugInfo/X86/nophysreg.ll Wed Apr 15 17:29:27 2015
>> > @@ -196,7 +196,7 @@ attributes #3 = { ssp uwtable }
>> >  !57 = !MDLocation(line: 23, column: 15, scope: !24)
>> >  !58 = !MDLocation(line: 23, column: 7, scope: !24)
>> >  !59 = !MDLocation(line: 24, column: 9, scope: !24)
>> > -!60 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "p5", line: 7,
>> arg: 1, scope: !11, file: !12, type: !"_ZTS1A", inlinedAt: !61)
>> > +!60 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "p5", line: 7,
>> arg: 1, scope: !11, file: !12, type: !"_ZTS1A")
>> >  !61 = distinct !MDLocation(line: 26, column: 7, scope: !24)
>> >  !62 = !MDLocation(line: 7, column: 42, scope: !11, inlinedAt: !61)
>> >  !63 = !MDLocation(line: 7, column: 48, scope: !11, inlinedAt: !61)
>> >
>> > Modified: llvm/trunk/test/DebugInfo/X86/recursive_inlining.ll
>> > URL:
>> http://llvm.org/viewvc/llvm-project/llvm/trunk/test/DebugInfo/X86/recursive_inlining.ll?rev=235050&r1=235049&r2=235050&view=diff
>> >
>> ==============================================================================
>> > --- llvm/trunk/test/DebugInfo/X86/recursive_inlining.ll (original)
>> > +++ llvm/trunk/test/DebugInfo/X86/recursive_inlining.ll Wed Apr 15
>> 17:29:27 2015
>> > @@ -236,7 +236,7 @@ attributes #3 = { nounwind }
>> >  !34 = !{!"any pointer", !35, i64 0}
>> >  !35 = !{!"omnipotent char", !36, i64 0}
>> >  !36 = !{!"Simple C/C++ TBAA"}
>> > -!37 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "this", arg: 1,
>> flags: DIFlagArtificial | DIFlagObjectPointer, scope: !22, type: !25,
>> inlinedAt: !32)
>> > +!37 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "this", arg: 1,
>> flags: DIFlagArtificial | DIFlagObjectPointer, scope: !22, type: !25)
>> >  !38 = !MDLocation(line: 0, scope: !22, inlinedAt: !32)
>> >  !39 = !MDLocation(line: 8, scope: !22, inlinedAt: !32)
>> >  !40 = !MDLocation(line: 9, scope: !41, inlinedAt: !32)
>> > @@ -256,7 +256,7 @@ attributes #3 = { nounwind }
>> >  !54 = !MDLocation(line: 20, scope: !18, inlinedAt: !55)
>> >  !55 = !MDLocation(line: 10, scope: !22)
>> >  !56 = !MDLocation(line: 17, scope: !14, inlinedAt: !54)
>> > -!57 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "this", arg: 1,
>> flags: DIFlagArtificial | DIFlagObjectPointer, scope: !22, type: !25,
>> inlinedAt: !56)
>> > +!57 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "this", arg: 1,
>> flags: DIFlagArtificial | DIFlagObjectPointer, scope: !22, type: !25)
>> >  !58 = !MDLocation(line: 0, scope: !22, inlinedAt: !56)
>> >  !59 = !MDLocation(line: 8, scope: !22, inlinedAt: !56)
>> >  !60 = !MDLocation(line: 9, scope: !41, inlinedAt: !56)
>> > @@ -266,7 +266,7 @@ attributes #3 = { nounwind }
>> >  !64 = !MDLocation(line: 16, scope: !14, inlinedAt: !65)
>> >  !65 = !MDLocation(line: 20, scope: !18)
>> >  !66 = !MDLocation(line: 17, scope: !14, inlinedAt: !65)
>> > -!67 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "this", arg: 1,
>> flags: DIFlagArtificial | DIFlagObjectPointer, scope: !22, type: !25,
>> inlinedAt: !66)
>> > +!67 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "this", arg: 1,
>> flags: DIFlagArtificial | DIFlagObjectPointer, scope: !22, type: !25)
>> >  !68 = !MDLocation(line: 0, scope: !22, inlinedAt: !66)
>> >  !69 = !MDLocation(line: 8, scope: !22, inlinedAt: !66)
>> >  !70 = !MDLocation(line: 9, scope: !41, inlinedAt: !66)
>> >
>> > Modified: llvm/trunk/test/DebugInfo/cross-cu-inlining.ll
>> > URL:
>> http://llvm.org/viewvc/llvm-project/llvm/trunk/test/DebugInfo/cross-cu-inlining.ll?rev=235050&r1=235049&r2=235050&view=diff
>> >
>> ==============================================================================
>> > --- llvm/trunk/test/DebugInfo/cross-cu-inlining.ll (original)
>> > +++ llvm/trunk/test/DebugInfo/cross-cu-inlining.ll Wed Apr 15 17:29:27
>> 2015
>> > @@ -134,7 +134,7 @@ attributes #3 = { nounwind }
>> >  !19 = !MDLocation(line: 4, scope: !4)
>> >  !20 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "x", line: 1,
>> arg: 1, scope: !12, file: !13, type: !8)
>> >
>> > -!120 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "x", line: 1,
>> arg: 1, scope: !12, file: !13, type: !8, inlinedAt: !19)
>> > +!120 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "x", line: 1,
>> arg: 1, scope: !12, file: !13, type: !8)
>> >
>> >  !21 = !MDLocation(line: 1, scope: !12, inlinedAt: !19)
>> >  !22 = !MDLocation(line: 2, scope: !12, inlinedAt: !19)
>> >
>> > Modified: llvm/trunk/test/DebugInfo/inline-scopes.ll
>> > URL:
>> http://llvm.org/viewvc/llvm-project/llvm/trunk/test/DebugInfo/inline-scopes.ll?rev=235050&r1=235049&r2=235050&view=diff
>> >
>> ==============================================================================
>> > --- llvm/trunk/test/DebugInfo/inline-scopes.ll (original)
>> > +++ llvm/trunk/test/DebugInfo/inline-scopes.ll Wed Apr 15 17:29:27 2015
>> > @@ -111,7 +111,7 @@ attributes #2 = { "less-precise-fpmad"="
>> >  !13 = !{i32 2, !"Dwarf Version", i32 4}
>> >  !14 = !{i32 1, !"Debug Info Version", i32 3}
>> >  !15 = !{!"clang version 3.5.0 "}
>> > -!16 = !MDLocalVariable(tag: DW_TAG_auto_variable, name: "b", line: 3,
>> scope: !17, file: !11, type: !18, inlinedAt: !20)
>> > +!16 = !MDLocalVariable(tag: DW_TAG_auto_variable, name: "b", line: 3,
>> scope: !17, file: !11, type: !18)
>> >  !17 = distinct !MDLexicalBlock(line: 3, column: 0, file: !1, scope:
>> !12)
>> >  !18 = !MDBasicType(tag: DW_TAG_base_type, name: "bool", size: 8,
>> align: 8, encoding: DW_ATE_boolean)
>> >  !19 = !MDLocation(line: 3, scope: !17, inlinedAt: !20)
>> > @@ -119,7 +119,7 @@ attributes #2 = { "less-precise-fpmad"="
>> >  !21 = !MDLocation(line: 4, scope: !17, inlinedAt: !20)
>> >  !22 = !MDLocation(line: 5, scope: !12, inlinedAt: !20)
>> >  !23 = !MDLocation(line: 6, scope: !12, inlinedAt: !20)
>> > -!24 = !MDLocalVariable(tag: DW_TAG_auto_variable, name: "b", line: 2,
>> scope: !25, file: !6, type: !18, inlinedAt: !28)
>> > +!24 = !MDLocalVariable(tag: DW_TAG_auto_variable, name: "b", line: 2,
>> scope: !25, file: !6, type: !18)
>> >  !25 = distinct !MDLexicalBlock(line: 2, column: 0, file: !5, scope:
>> !26)
>> >  !26 = !MDLexicalBlockFile(discriminator: 0, file: !5, scope: !10)
>> >  !27 = !MDLocation(line: 2, scope: !25, inlinedAt: !28)
>> >
>> > Modified: llvm/trunk/test/DebugInfo/inlined-arguments.ll
>> > URL:
>> http://llvm.org/viewvc/llvm-project/llvm/trunk/test/DebugInfo/inlined-arguments.ll?rev=235050&r1=235049&r2=235050&view=diff
>> >
>> ==============================================================================
>> > --- llvm/trunk/test/DebugInfo/inlined-arguments.ll (original)
>> > +++ llvm/trunk/test/DebugInfo/inlined-arguments.ll Wed Apr 15 17:29:27
>> 2015
>> > @@ -66,11 +66,11 @@ attributes #2 = { nounwind readnone }
>> >  !13 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "x", line: 6,
>> arg: 1, scope: !8, file: !5, type: !11)
>> >  !14 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "y", line: 6,
>> arg: 2, scope: !8, file: !5, type: !11)
>> >  !15 = !{i32 undef}
>> > -!16 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "x", line: 6,
>> arg: 1, scope: !8, file: !5, type: !11, inlinedAt: !17)
>> > +!16 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "x", line: 6,
>> arg: 1, scope: !8, file: !5, type: !11)
>> >  !17 = !MDLocation(line: 4, scope: !4)
>> >  !18 = !MDLocation(line: 6, scope: !8, inlinedAt: !17)
>> >  !19 = !{i32 2}
>> > -!20 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "y", line: 6,
>> arg: 2, scope: !8, file: !5, type: !11, inlinedAt: !17)
>> > +!20 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "y", line: 6,
>> arg: 2, scope: !8, file: !5, type: !11)
>> >  !21 = !MDLocation(line: 7, scope: !8, inlinedAt: !17)
>> >  !22 = !MDLocation(line: 5, scope: !4)
>> >  !23 = !MDLocation(line: 6, scope: !8)
>> >
>> > Modified: llvm/trunk/test/DebugInfo/inlined-vars.ll
>> > URL:
>> http://llvm.org/viewvc/llvm-project/llvm/trunk/test/DebugInfo/inlined-vars.ll?rev=235050&r1=235049&r2=235050&view=diff
>> >
>> ==============================================================================
>> > --- llvm/trunk/test/DebugInfo/inlined-vars.ll (original)
>> > +++ llvm/trunk/test/DebugInfo/inlined-vars.ll Wed Apr 15 17:29:27 2015
>> > @@ -45,10 +45,10 @@ declare void @llvm.dbg.value(metadata, i
>> >  ; VARIABLE: {{.*Abbrev.*DW_TAG_variable}}
>> >  ; VARIABLE-NOT: {{.*Abbrev.*DW_TAG_variable}}
>> >
>> > -!18 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "argument",
>> line: 3, arg: 1, scope: !10, file: !6, type: !9, inlinedAt: !19)
>> > +!18 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "argument",
>> line: 3, arg: 1, scope: !10, file: !6, type: !9)
>> >  !19 = !MDLocation(line: 11, column: 10, scope: !5)
>> >  !21 = !MDLocation(line: 3, column: 25, scope: !10, inlinedAt: !19)
>> > -!22 = !MDLocalVariable(tag: DW_TAG_auto_variable, name: "local", line:
>> 4, scope: !10, file: !6, type: !9, inlinedAt: !19)
>> > +!22 = !MDLocalVariable(tag: DW_TAG_auto_variable, name: "local", line:
>> 4, scope: !10, file: !6, type: !9)
>> >  !23 = !MDLocation(line: 4, column: 16, scope: !10, inlinedAt: !19)
>> >  !24 = !MDLocation(line: 5, column: 3, scope: !10, inlinedAt: !19)
>> >  !25 = !MDLocation(line: 6, column: 3, scope: !10, inlinedAt: !19)
>> >
>> > Modified: llvm/trunk/test/DebugInfo/missing-abstract-variable.ll
>> > URL:
>> http://llvm.org/viewvc/llvm-project/llvm/trunk/test/DebugInfo/missing-abstract-variable.ll?rev=235050&r1=235049&r2=235050&view=diff
>> >
>> ==============================================================================
>> > --- llvm/trunk/test/DebugInfo/missing-abstract-variable.ll (original)
>> > +++ llvm/trunk/test/DebugInfo/missing-abstract-variable.ll Wed Apr 15
>> 17:29:27 2015
>> > @@ -160,13 +160,13 @@ attributes #2 = { nounwind readnone }
>> >  !22 = !{i32 2, !"Debug Info Version", i32 3}
>> >  !23 = !{!"clang version 3.5.0 "}
>> >  !24 = !{i1 false}
>> > -!25 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "b", line: 5,
>> arg: 1, scope: !14, file: !5, type: !11, inlinedAt: !26)
>> > +!25 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "b", line: 5,
>> arg: 1, scope: !14, file: !5, type: !11)
>> >  !26 = !MDLocation(line: 14, scope: !4)
>> >  !27 = !MDLocation(line: 5, scope: !14, inlinedAt: !26)
>> >  !28 = !MDLocation(line: 10, scope: !14, inlinedAt: !26)
>> >  !29 = !MDLocation(line: 15, scope: !4)
>> >  !30 = !MDLocation(line: 17, scope: !8)
>> > -!31 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "b", line: 5,
>> arg: 1, scope: !14, file: !5, type: !11, inlinedAt: !32)
>> > +!31 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "b", line: 5,
>> arg: 1, scope: !14, file: !5, type: !11)
>> >  !32 = !MDLocation(line: 18, scope: !8)
>> >  !33 = !MDLocation(line: 5, scope: !14, inlinedAt: !32)
>> >  !34 = !MDLocation(line: 6, scope: !19, inlinedAt: !32)
>> > @@ -175,7 +175,7 @@ attributes #2 = { nounwind readnone }
>> >  !37 = !{!"int", !38, i64 0}
>> >  !38 = !{!"omnipotent char", !39, i64 0}
>> >  !39 = !{!"Simple C/C++ TBAA"}
>> > -!40 = !MDLocalVariable(tag: DW_TAG_auto_variable, name: "s", line: 7,
>> scope: !18, file: !5, type: !20, inlinedAt: !32)
>> > +!40 = !MDLocalVariable(tag: DW_TAG_auto_variable, name: "s", line: 7,
>> scope: !18, file: !5, type: !20)
>> >  !41 = !MDLocation(line: 8, scope: !18, inlinedAt: !32)
>> >  !42 = !MDLocation(line: 9, scope: !18, inlinedAt: !32)
>> >  !43 = !MDLocation(line: 10, scope: !14, inlinedAt: !32)
>> >
>> > Modified:
>> llvm/trunk/test/DebugInfo/namespace_inline_function_definition.ll
>> > URL:
>> http://llvm.org/viewvc/llvm-project/llvm/trunk/test/DebugInfo/namespace_inline_function_definition.ll?rev=235050&r1=235049&r2=235050&view=diff
>> >
>> ==============================================================================
>> > --- llvm/trunk/test/DebugInfo/namespace_inline_function_definition.ll
>> (original)
>> > +++ llvm/trunk/test/DebugInfo/namespace_inline_function_definition.ll
>> Wed Apr 15 17:29:27 2015
>> > @@ -89,7 +89,7 @@ attributes #2 = { nounwind readnone }
>> >  !16 = !MDLocation(line: 5, scope: !4)
>> >  !17 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "i", line: 6,
>> arg: 1, scope: !9, file: !5, type: !8)
>> >
>> > -!117 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "i", line: 6,
>> arg: 1, scope: !9, file: !5, type: !8, inlinedAt: !16)
>> > +!117 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "i", line: 6,
>> arg: 1, scope: !9, file: !5, type: !8)
>> >
>> >  !18 = !MDLocation(line: 6, scope: !9, inlinedAt: !16)
>> >  !19 = !MDLocation(line: 6, scope: !9)
>> >
>> > Modified: llvm/trunk/test/Transforms/Inline/alloca-dbgdeclare.ll
>> > URL:
>> http://llvm.org/viewvc/llvm-project/llvm/trunk/test/Transforms/Inline/alloca-dbgdeclare.ll?rev=235050&r1=235049&r2=235050&view=diff
>> >
>> ==============================================================================
>> > --- llvm/trunk/test/Transforms/Inline/alloca-dbgdeclare.ll (original)
>> > +++ llvm/trunk/test/Transforms/Inline/alloca-dbgdeclare.ll Wed Apr 15
>> 17:29:27 2015
>> > @@ -128,7 +128,7 @@ attributes #3 = { noreturn nounwind }
>> >  !43 = !{!37, !37, i64 0}
>> >  !44 = !{!38, !38, i64 0}
>> >  !45 = !MDLocation(line: 9, scope: !15)
>> > -!46 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "p1", line: 6,
>> arg: 1, scope: !15, file: !16, type: !"_ZTS1A", inlinedAt: !47)
>> > +!46 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "p1", line: 6,
>> arg: 1, scope: !15, file: !16, type: !"_ZTS1A")
>> >  !47 = distinct !MDLocation(line: 11, scope: !21)
>> >  !48 = !MDExpression(DW_OP_bit_piece, 32, 160)
>> >  !49 = !MDLocation(line: 6, scope: !15, inlinedAt: !47)
>> >
>> > Modified: llvm/trunk/test/Transforms/Inline/inline_dbg_declare.ll
>> > URL:
>> http://llvm.org/viewvc/llvm-project/llvm/trunk/test/Transforms/Inline/inline_dbg_declare.ll?rev=235050&r1=235049&r2=235050&view=diff
>> >
>> ==============================================================================
>> > --- llvm/trunk/test/Transforms/Inline/inline_dbg_declare.ll (original)
>> > +++ llvm/trunk/test/Transforms/Inline/inline_dbg_declare.ll Wed Apr 15
>> 17:29:27 2015
>> > @@ -94,6 +94,6 @@ attributes #1 = { nounwind readnone }
>> >
>> >  ; CHECK: [[FOO:![0-9]+]] = !MDSubprogram(name: "foo",
>> >  ; CHECK: [[BAR:![0-9]+]] = !MDSubprogram(name: "bar",
>> > +; CHECK: [[m23]] = !MDLocalVariable(tag: DW_TAG_arg_variable, name:
>> "x", arg: 1, scope: [[FOO]]
>> >  ; CHECK: [[CALL_SITE:![0-9]+]] = distinct !MDLocation(line: 8, column:
>> 14, scope: [[BAR]])
>> > -; CHECK: [[m23]] = !MDLocalVariable(tag: DW_TAG_arg_variable, name:
>> "x", arg: 1, scope: [[FOO]],{{.*}} inlinedAt: [[CALL_SITE]])
>> >  ; CHECK: [[m24]] = !MDLocation(line: 1, column: 17, scope: [[FOO]],
>> inlinedAt: [[CALL_SITE]])
>> >
>> > Modified: llvm/trunk/test/Transforms/Mem2Reg/ConvertDebugInfo2.ll
>> > URL:
>> http://llvm.org/viewvc/llvm-project/llvm/trunk/test/Transforms/Mem2Reg/ConvertDebugInfo2.ll?rev=235050&r1=235049&r2=235050&view=diff
>> >
>> ==============================================================================
>> > --- llvm/trunk/test/Transforms/Mem2Reg/ConvertDebugInfo2.ll (original)
>> > +++ llvm/trunk/test/Transforms/Mem2Reg/ConvertDebugInfo2.ll Wed Apr 15
>> 17:29:27 2015
>> > @@ -41,15 +41,15 @@ return:
>> >  !6 = !MDBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align:
>> 32, encoding: DW_ATE_signed)
>> >  !7 = !MDLocation(line: 8, scope: !1)
>> >  !8 = !MDLocation(line: 9, scope: !1)
>> > -!9 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "x", line: 4,
>> arg: 0, scope: !10, file: !2, type: !6, inlinedAt: !8)
>> > +!9 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "x", line: 4,
>> arg: 0, scope: !10, file: !2, type: !6)
>> >  !10 = !MDSubprogram(name: "bar", linkageName: "bar", line: 4, isLocal:
>> true, isDefinition: true, virtualIndex: 6, isOptimized: false, scopeLine:
>> 4, file: !20, scope: !2, type: !11)
>> >  !11 = !MDSubroutineType(types: !12)
>> >  !12 = !{null, !6, !13, !14}
>> >  !13 = !MDBasicType(tag: DW_TAG_base_type, name: "long int", size: 64,
>> align: 64, encoding: DW_ATE_signed)
>> >  !14 = !MDDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64,
>> file: !20, scope: !2, baseType: null)
>> >  !15 = !MDLocation(line: 4, scope: !10, inlinedAt: !8)
>> > -!16 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "y", line: 4,
>> arg: 0, scope: !10, file: !2, type: !13, inlinedAt: !8)
>> > -!17 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "z", line: 4,
>> arg: 0, scope: !10, file: !2, type: !
>> ...
>>
>> [Message clipped]
>
>
>
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