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Debug Info: instead of calling addToContextOwner which constructs the context 

after the DIE creation, we construct the context first.

This touches creation of namespaces and global variables. The purpose is to
handle all DIE creations similarly: constructs the context first, then creates
the DIE and immediately adds the DIE to its parent.

We use createAndAddDIE to wrap around "new DIE(".

llvm-svn: 193589
This commit is contained in:
Manman Ren 2013-10-29 05:49:41 +00:00
parent b1ffd99b6a
commit f6b936bc06
13 changed files with 66 additions and 54 deletions
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24
llvm/lib/CodeGen/AsmPrinter/DwarfCompileUnit.cpp
View File

@ -1327,11 +1327,19 @@ CompileUnit::constructTemplateValueParameterDIE(DIE &Buffer,
/// getOrCreateNameSpace - Create a DIE for DINameSpace. /// getOrCreateNameSpace - Create a DIE for DINameSpace.
DIE *CompileUnit::getOrCreateNameSpace(DINameSpace NS) { DIE *CompileUnit::getOrCreateNameSpace(DINameSpace NS) {
// Construct the context before querying for the existence of the DIE in case
// such construction creates the DIE.
DIE *ContextDIE = getOrCreateContextDIE(NS.getContext());
if (!ContextDIE)
// If the context is null, DIE should belong to the CU we call construct
// function on.
ContextDIE = CUDie.get();
DIE *NDie = getDIE(NS); DIE *NDie = getDIE(NS);
if (NDie) if (NDie)
return NDie; return NDie;
NDie = new DIE(dwarf::DW_TAG_namespace); NDie = createAndAddDIE(dwarf::DW_TAG_namespace, *ContextDIE, NS);
insertDIE(NS, NDie);
if (!NS.getName().empty()) { if (!NS.getName().empty()) {
addString(NDie, dwarf::DW_AT_name, NS.getName()); addString(NDie, dwarf::DW_AT_name, NS.getName());
addAccelNamespace(NS.getName(), NDie); addAccelNamespace(NS.getName(), NDie);
@ -1339,7 +1347,6 @@ DIE *CompileUnit::getOrCreateNameSpace(DINameSpace NS) {
} else } else
addAccelNamespace("(anonymous namespace)", NDie); addAccelNamespace("(anonymous namespace)", NDie);
addSourceLine(NDie, NS); addSourceLine(NDie, NS);
addToContextOwner(NDie, NS.getContext());
return NDie; return NDie;
} }
@ -1506,9 +1513,14 @@ void CompileUnit::createGlobalVariableDIE(const MDNode *N) {
// If this is not a static data member definition, create the variable // If this is not a static data member definition, create the variable
// DIE and add the initial set of attributes to it. // DIE and add the initial set of attributes to it.
if (!VariableDIE) { if (!VariableDIE) {
VariableDIE = new DIE(GV.getTag()); // Construct the context before querying for the existence of the DIE in
// case such construction creates the DIE.
DIE *ContextDIE = getOrCreateContextDIE(GVContext);
if (!ContextDIE)
ContextDIE = CUDie.get();
// Add to map. // Add to map.
insertDIE(N, VariableDIE); VariableDIE = createAndAddDIE(GV.getTag(), *ContextDIE, N);
// Add name and type. // Add name and type.
addString(VariableDIE, dwarf::DW_AT_name, GV.getDisplayName()); addString(VariableDIE, dwarf::DW_AT_name, GV.getDisplayName());
@ -1520,8 +1532,6 @@ void CompileUnit::createGlobalVariableDIE(const MDNode *N) {
// Add line number info. // Add line number info.
addSourceLine(VariableDIE, GV); addSourceLine(VariableDIE, GV);
// Add to context owner.
addToContextOwner(VariableDIE, GVContext);
} }
// Add location. // Add location.

4
llvm/test/DebugInfo/X86/2010-08-10-DbgConstant.ll
View File

@ -1,7 +1,7 @@
; RUN: llc -mtriple=i686-linux -O0 -filetype=obj -o %t %s ; RUN: llc -mtriple=i686-linux -O0 -filetype=obj -o %t %s
; RUN: llvm-dwarfdump -debug-dump=info %t | FileCheck %s ; RUN: llvm-dwarfdump -debug-dump=info %t | FileCheck %s
; CHECK: DW_TAG_constant [4] ; CHECK: DW_TAG_constant
; CHECK-NEXT: DW_AT_name [DW_FORM_strp] ( .debug_str[0x0000002c] = "ro") ; CHECK-NEXT: DW_AT_name [DW_FORM_strp] ( .debug_str[0x{{[0-9a-f]*}}] = "ro")
define void @foo() nounwind ssp { define void @foo() nounwind ssp {
entry: entry:

8
llvm/test/DebugInfo/X86/2011-09-26-GlobalVarContext.ll
View File

@ -37,13 +37,13 @@ declare void @llvm.dbg.declare(metadata, metadata) nounwind readnone
!19 = metadata !{i32 5, i32 5, metadata !16, null} !19 = metadata !{i32 5, i32 5, metadata !16, null}
!20 = metadata !{metadata !"test.c", metadata !"/work/llvm/vanilla/test/DebugInfo"} !20 = metadata !{metadata !"test.c", metadata !"/work/llvm/vanilla/test/DebugInfo"}
; CHECK: DW_TAG_variable [3] ; CHECK: DW_TAG_variable
; CHECK: DW_AT_name [DW_FORM_strp] ( .debug_str[0x00000043] = "GLB") ; CHECK-NEXT: DW_AT_name [DW_FORM_strp] ( .debug_str[0x{{[0-9a-f]*}}] = "GLB")
; CHECK: DW_AT_decl_file [DW_FORM_data1] (0x01) ; CHECK: DW_AT_decl_file [DW_FORM_data1] (0x01)
; CHECK: DW_AT_decl_line [DW_FORM_data1] (0x01) ; CHECK: DW_AT_decl_line [DW_FORM_data1] (0x01)
; CHECK: DW_TAG_variable [6] ; CHECK: DW_TAG_variable
; CHECK: DW_AT_name [DW_FORM_strp] ( .debug_str[0x0000004d] = "LOC") ; CHECK-NEXT: DW_AT_name [DW_FORM_strp] ( .debug_str[0x{{[0-9a-f]*}}] = "LOC")
; CHECK: DW_AT_decl_file [DW_FORM_data1] (0x01) ; CHECK: DW_AT_decl_file [DW_FORM_data1] (0x01)
; CHECK: DW_AT_decl_line [DW_FORM_data1] (0x04) ; CHECK: DW_AT_decl_line [DW_FORM_data1] (0x04)

6
llvm/test/DebugInfo/X86/DW_TAG_friend.ll
View File

@ -3,10 +3,10 @@
; Check that the friend tag is there and is followed by a DW_AT_friend that has a reference back. ; Check that the friend tag is there and is followed by a DW_AT_friend that has a reference back.
; CHECK: [[BACK:0x[0-9a-f]*]]: DW_TAG_class_type [4] ; CHECK: [[BACK:0x[0-9a-f]*]]: DW_TAG_class_type
; CHECK-NEXT: DW_AT_name [DW_FORM_strp] ( .debug_str[{{.*}}] = "A") ; CHECK-NEXT: DW_AT_name [DW_FORM_strp] ( .debug_str[{{.*}}] = "A")
; CHECK: DW_TAG_friend [9] ; CHECK: DW_TAG_friend
; CHECK-NEXT: DW_AT_friend [DW_FORM_ref4] (cu + 0x0032 => {[[BACK]]}) ; CHECK-NEXT: DW_AT_friend [DW_FORM_ref4] (cu + 0x{{[0-9a-f]*}} => {[[BACK]]})
%class.A = type { i32 } %class.A = type { i32 }

17
llvm/test/DebugInfo/X86/empty-array.ll
View File

@ -6,21 +6,22 @@
@a = global %class.A zeroinitializer, align 4 @a = global %class.A zeroinitializer, align 4
; CHECK: 0x0000002d: DW_TAG_base_type [3] ; CHECK: [[BASETYPE:0x[0-9a-f]*]]: DW_TAG_base_type
; CHECK: [[BASE2:0x[0-9a-f]*]]: DW_TAG_base_type
; CHECK-NEXT: DW_AT_name ; CHECK-NEXT: DW_AT_name
; CHECK-NEXT: DW_AT_byte_size [DW_FORM_data1] (0x04) ; CHECK-NEXT: DW_AT_byte_size [DW_FORM_data1] (0x04)
; CHECK-NEXT: DW_AT_encoding [DW_FORM_data1] (0x05) ; CHECK-NEXT: DW_AT_encoding [DW_FORM_data1] (0x05)
; CHECK: 0x00000034: DW_TAG_array_type [4] * ; CHECK: [[ARRAY:0x[0-9a-f]*]]: DW_TAG_array_type [{{.*}}] *
; CHECK-NEXT: DW_AT_type [DW_FORM_ref4] (cu + 0x0026 => {0x00000026}) ; CHECK-NEXT: DW_AT_type [DW_FORM_ref4] (cu + 0x{{[0-9a-f]*}} => {[[BASETYPE]]})
; CHECK: 0x00000039: DW_TAG_subrange_type [5] ; CHECK: DW_TAG_subrange_type
; CHECK-NEXT: DW_AT_type [DW_FORM_ref4] (cu + 0x002d => {0x0000002d}) ; CHECK-NEXT: DW_AT_type [DW_FORM_ref4] (cu + 0x{{[0-9a-f]*}} => {[[BASE2]]})
; CHECK-NOT: DW_AT_upper_bound ; CHECK-NOT: DW_AT_upper_bound
; CHECK: DW_TAG_member [8] ; CHECK: DW_TAG_member
; CHECK-NEXT: DW_AT_name [DW_FORM_strp] ( .debug_str[0x0000003f] = "x") ; CHECK-NEXT: DW_AT_name [DW_FORM_strp] ( .debug_str[0x{{[0-9a-f]*}}] = "x")
; CHECK-NEXT: DW_AT_type [DW_FORM_ref4] (cu + 0x0034 => {0x00000034}) ; CHECK-NEXT: DW_AT_type [DW_FORM_ref4] (cu + 0x{{[0-9a-f]*}} => {[[ARRAY]]})
!llvm.dbg.cu = !{!0} !llvm.dbg.cu = !{!0}

4
llvm/test/DebugInfo/X86/enum-class.ll
View File

@ -28,12 +28,12 @@
!21 = metadata !{i32 786484, i32 0, null, metadata !"c", metadata !"c", metadata !"", metadata !4, i32 6, metadata !12, i32 0, i32 1, i32* @c, null} ; [ DW_TAG_variable ] !21 = metadata !{i32 786484, i32 0, null, metadata !"c", metadata !"c", metadata !"", metadata !4, i32 6, metadata !12, i32 0, i32 1, i32* @c, null} ; [ DW_TAG_variable ]
!22 = metadata !{metadata !"foo.cpp", metadata !"/Users/echristo/tmp"} !22 = metadata !{metadata !"foo.cpp", metadata !"/Users/echristo/tmp"}
; CHECK: DW_TAG_enumeration_type [3] ; CHECK: DW_TAG_enumeration_type [{{.*}}]
; CHECK: DW_AT_type [DW_FORM_ref4] ; CHECK: DW_AT_type [DW_FORM_ref4]
; CHECK: DW_AT_enum_class [DW_FORM_flag_present] (true) ; CHECK: DW_AT_enum_class [DW_FORM_flag_present] (true)
; CHECK: DW_AT_name [DW_FORM_strp] ( .debug_str[{{.*}}] = "A") ; CHECK: DW_AT_name [DW_FORM_strp] ( .debug_str[{{.*}}] = "A")
; CHECK: DW_TAG_enumeration_type [3] * ; CHECK: DW_TAG_enumeration_type [{{.*}}] *
; CHECK: DW_AT_type [DW_FORM_ref4] ; CHECK: DW_AT_type [DW_FORM_ref4]
; CHECK: DW_AT_enum_class [DW_FORM_flag_present] (true) ; CHECK: DW_AT_enum_class [DW_FORM_flag_present] (true)
; CHECK: DW_AT_name [DW_FORM_strp] ( .debug_str[{{.*}}] = "B") ; CHECK: DW_AT_name [DW_FORM_strp] ( .debug_str[{{.*}}] = "B")

18
llvm/test/DebugInfo/X86/fission-cu.ll
View File

@ -54,12 +54,7 @@
; CHECK-NOT: DW_AT_comp_dir ; CHECK-NOT: DW_AT_comp_dir
; CHECK: DW_AT_GNU_dwo_id DW_FORM_data8 ; CHECK: DW_AT_GNU_dwo_id DW_FORM_data8
; CHECK: [2] DW_TAG_base_type DW_CHILDREN_no ; CHECK: [2] DW_TAG_variable DW_CHILDREN_no
; CHECK: DW_AT_name DW_FORM_GNU_str_index
; CHECK: DW_AT_encoding DW_FORM_data1
; CHECK: DW_AT_byte_size DW_FORM_data1
; CHECK: [3] DW_TAG_variable DW_CHILDREN_no
; CHECK: DW_AT_name DW_FORM_GNU_str_index ; CHECK: DW_AT_name DW_FORM_GNU_str_index
; CHECK: DW_AT_type DW_FORM_ref4 ; CHECK: DW_AT_type DW_FORM_ref4
; CHECK: DW_AT_external DW_FORM_flag_present ; CHECK: DW_AT_external DW_FORM_flag_present
@ -67,6 +62,11 @@
; CHECK: DW_AT_decl_line DW_FORM_data1 ; CHECK: DW_AT_decl_line DW_FORM_data1
; CHECK: DW_AT_location DW_FORM_block1 ; CHECK: DW_AT_location DW_FORM_block1
; CHECK: [3] DW_TAG_base_type DW_CHILDREN_no
; CHECK: DW_AT_name DW_FORM_GNU_str_index
; CHECK: DW_AT_encoding DW_FORM_data1
; CHECK: DW_AT_byte_size DW_FORM_data1
; Check that the rest of the compile units have information. ; Check that the rest of the compile units have information.
; CHECK: .debug_info.dwo contents: ; CHECK: .debug_info.dwo contents:
; CHECK: DW_TAG_compile_unit ; CHECK: DW_TAG_compile_unit
@ -77,15 +77,15 @@
; CHECK-NOT: DW_AT_stmt_list ; CHECK-NOT: DW_AT_stmt_list
; CHECK-NOT: DW_AT_comp_dir ; CHECK-NOT: DW_AT_comp_dir
; CHECK: DW_AT_GNU_dwo_id [DW_FORM_data8] (0x0000000000000000) ; CHECK: DW_AT_GNU_dwo_id [DW_FORM_data8] (0x0000000000000000)
; CHECK: DW_TAG_base_type
; CHECK: DW_AT_name [DW_FORM_GNU_str_index] ( indexed (00000003) string = "int")
; CHECK: DW_TAG_variable ; CHECK: DW_TAG_variable
; CHECK: DW_AT_name [DW_FORM_GNU_str_index] ( indexed (00000002) string = "a") ; CHECK: DW_AT_name [DW_FORM_GNU_str_index] ( indexed (00000002) string = "a")
; CHECK: DW_AT_type [DW_FORM_ref4] (cu + 0x0018 => {0x00000018}) ; CHECK: DW_AT_type [DW_FORM_ref4] (cu + 0x{{[0-9a-f]*}} => {[[TYPE:0x[0-9a-f]*]]})
; CHECK: DW_AT_external [DW_FORM_flag_present] (true) ; CHECK: DW_AT_external [DW_FORM_flag_present] (true)
; CHECK: DW_AT_decl_file [DW_FORM_data1] (0x01) ; CHECK: DW_AT_decl_file [DW_FORM_data1] (0x01)
; CHECK: DW_AT_decl_line [DW_FORM_data1] (0x01) ; CHECK: DW_AT_decl_line [DW_FORM_data1] (0x01)
; CHECK: DW_AT_location [DW_FORM_block1] (<0x02> fb 00 ) ; CHECK: DW_AT_location [DW_FORM_block1] (<0x02> fb 00 )
; CHECK: [[TYPE]]: DW_TAG_base_type
; CHECK: DW_AT_name [DW_FORM_GNU_str_index] ( indexed (00000003) string = "int")
; CHECK: .debug_str.dwo contents: ; CHECK: .debug_str.dwo contents:

6
llvm/test/DebugInfo/X86/gnu-public-names.ll
View File

@ -77,12 +77,12 @@
; CHECK: [[GLOB_NS_VAR_DECL:[0-9a-f]+]]: DW_TAG_variable ; CHECK: [[GLOB_NS_VAR_DECL:[0-9a-f]+]]: DW_TAG_variable
; CHECK-NEXT: DW_AT_name {{.*}} "global_namespace_variable" ; CHECK-NEXT: DW_AT_name {{.*}} "global_namespace_variable"
; CHECK: [[D:[0-9a-f]+]]: DW_TAG_structure_type
; CHECK-NEXT: DW_AT_name {{.*}} "D"
; CHECK: [[D_VAR_DECL:[0-9a-f]+]]: DW_TAG_variable ; CHECK: [[D_VAR_DECL:[0-9a-f]+]]: DW_TAG_variable
; CHECK-NEXT: DW_AT_name {{.*}} "d" ; CHECK-NEXT: DW_AT_name {{.*}} "d"
; CHECK: [[D:[0-9a-f]+]]: DW_TAG_structure_type
; CHECK-NEXT: DW_AT_name {{.*}} "D"
; CHECK: [[GLOB_NS_FUNC:[0-9a-f]+]]: DW_TAG_subprogram ; CHECK: [[GLOB_NS_FUNC:[0-9a-f]+]]: DW_TAG_subprogram
; CHECK-NEXT: DW_AT_MIPS_linkage_name ; CHECK-NEXT: DW_AT_MIPS_linkage_name
; CHECK-NEXT: DW_AT_name {{.*}} "global_namespace_function" ; CHECK-NEXT: DW_AT_name {{.*}} "global_namespace_function"

19
llvm/test/DebugInfo/X86/nondefault-subrange-array.ll
View File

@ -8,22 +8,23 @@
; Check that we can handle non-default array bounds. In this case, the array ; Check that we can handle non-default array bounds. In this case, the array
; goes from [-3, 38]. ; goes from [-3, 38].
; CHECK: 0x0000002d: DW_TAG_base_type [3] ; CHECK: [[BASE:0x[0-9a-f]*]]: DW_TAG_base_type
; CHECK-NEXT: DW_AT_name [DW_FORM_strp] ( .debug_str[0x00000041] = "int") ; CHECK: [[BASE2:0x[0-9a-f]*]]: DW_TAG_base_type
; CHECK-NEXT: DW_AT_name [DW_FORM_strp] ( .debug_str[0x{{[0-9a-f]*}}] = "int")
; CHECK-NEXT: DW_AT_byte_size [DW_FORM_data1] (0x04) ; CHECK-NEXT: DW_AT_byte_size [DW_FORM_data1] (0x04)
; CHECK-NEXT: DW_AT_encoding [DW_FORM_data1] (0x05) ; CHECK-NEXT: DW_AT_encoding [DW_FORM_data1] (0x05)
; CHECK: 0x00000034: DW_TAG_array_type [4] * ; CHECK: [[ARRAY:0x[0-9a-f]*]]: DW_TAG_array_type [{{.*}}] *
; CHECK-NEXT: DW_AT_type [DW_FORM_ref4] (cu + 0x0026 => {0x00000026}) ; CHECK-NEXT: DW_AT_type [DW_FORM_ref4] (cu + 0x{{[0-9a-f]*}} => {[[BASE]]})
; CHECK: 0x00000039: DW_TAG_subrange_type [5] ; CHECK: DW_TAG_subrange_type
; CHECK-NEXT: DW_AT_type [DW_FORM_ref4] (cu + 0x002d => {0x0000002d}) ; CHECK-NEXT: DW_AT_type [DW_FORM_ref4] (cu + 0x{{[0-9a-f]*}} => {[[BASE2]]})
; CHECK-NEXT: DW_AT_lower_bound [DW_FORM_data8] (0xfffffffffffffffd) ; CHECK-NEXT: DW_AT_lower_bound [DW_FORM_data8] (0xfffffffffffffffd)
; CHECK-NEXT: DW_AT_upper_bound [DW_FORM_data1] (0x26) ; CHECK-NEXT: DW_AT_upper_bound [DW_FORM_data1] (0x26)
; CHECK: 0x00000055: DW_TAG_member [8] ; CHECK: DW_TAG_member
; CHECK-NEXT: DW_AT_name [DW_FORM_strp] ( .debug_str[0x0000003f] = "x") ; CHECK-NEXT: DW_AT_name [DW_FORM_strp] ( .debug_str[0x{{[0-9a-f]*}}] = "x")
; CHECK-NEXT: DW_AT_type [DW_FORM_ref4] (cu + 0x0034 => {0x00000034}) ; CHECK-NEXT: DW_AT_type [DW_FORM_ref4] (cu + 0x{{[0-9a-f]*}} => {[[ARRAY]]})
!llvm.dbg.cu = !{!0} !llvm.dbg.cu = !{!0}

2
llvm/test/DebugInfo/X86/objc-fwd-decl.ll
View File

@ -1,7 +1,7 @@
; RUN: llc -mtriple=x86_64-macosx %s -o %t -filetype=obj ; RUN: llc -mtriple=x86_64-macosx %s -o %t -filetype=obj
; RUN: llvm-dwarfdump -debug-dump=info %t | FileCheck %s ; RUN: llvm-dwarfdump -debug-dump=info %t | FileCheck %s
; CHECK: 0x00000027: DW_TAG_structure_type ; CHECK: DW_TAG_structure_type
; CHECK: DW_AT_declaration ; CHECK: DW_AT_declaration
; CHECK: DW_AT_APPLE_runtime_class ; CHECK: DW_AT_APPLE_runtime_class

8
llvm/test/DebugInfo/X86/stringpool.ll
View File

@ -21,7 +21,7 @@
; Verify that we refer to 'yyyy' with a relocation. ; Verify that we refer to 'yyyy' with a relocation.
; LINUX: .long .Linfo_string3 # DW_AT_name ; LINUX: .long .Linfo_string3 # DW_AT_name
; LINUX-NEXT: .long 38 # DW_AT_type ; LINUX-NEXT: .long {{[0-9]+}} # DW_AT_type
; LINUX-NEXT: # DW_AT_external ; LINUX-NEXT: # DW_AT_external
; LINUX-NEXT: .byte 1 # DW_AT_decl_file ; LINUX-NEXT: .byte 1 # DW_AT_decl_file
; LINUX-NEXT: .byte 1 # DW_AT_decl_line ; LINUX-NEXT: .byte 1 # DW_AT_decl_line
@ -30,9 +30,9 @@
; LINUX-NEXT: .quad yyyy ; LINUX-NEXT: .quad yyyy
; Verify that we refer to 'yyyy' without a relocation. ; Verify that we refer to 'yyyy' without a relocation.
; DARWIN: Lset5 = Linfo_string3-Linfo_string ## DW_AT_name ; DARWIN: Lset[[ID:[0-9]+]] = Linfo_string3-Linfo_string ## DW_AT_name
; DARWIN-NEXT: .long Lset5 ; DARWIN-NEXT: .long Lset[[ID]]
; DARWIN-NEXT: .long 38 ## DW_AT_type ; DARWIN-NEXT: .long {{[0-9]+}} ## DW_AT_type
; DARWIN-NEXT: ## DW_AT_external ; DARWIN-NEXT: ## DW_AT_external
; DARWIN-NEXT: .byte 1 ## DW_AT_decl_file ; DARWIN-NEXT: .byte 1 ## DW_AT_decl_file
; DARWIN-NEXT: .byte 1 ## DW_AT_decl_line ; DARWIN-NEXT: .byte 1 ## DW_AT_decl_line

2
llvm/test/DebugInfo/X86/struct-loc.ll
View File

@ -2,7 +2,7 @@
; RUN: llvm-dwarfdump -debug-dump=info %t | FileCheck %s ; RUN: llvm-dwarfdump -debug-dump=info %t | FileCheck %s
; Make sure that structures have a decl file and decl line attached. ; Make sure that structures have a decl file and decl line attached.
; CHECK: DW_TAG_structure_type [3] ; CHECK: DW_TAG_structure_type
; CHECK: DW_AT_decl_file ; CHECK: DW_AT_decl_file
; CHECK: DW_AT_decl_line ; CHECK: DW_AT_decl_line
; CHECK: DW_TAG_member ; CHECK: DW_TAG_member

2
llvm/test/DebugInfo/template-recursive-void.ll
View File

@ -13,7 +13,7 @@
; class bar : public foo<void> { }; ; class bar : public foo<void> { };
; bar filters; ; bar filters;
; CHECK: DW_TAG_template_type_parameter [10] ; CHECK: DW_TAG_template_type_parameter [{{.*}}]
; CHECK-NEXT: DW_AT_name{{.*}}"T" ; CHECK-NEXT: DW_AT_name{{.*}}"T"
; CHECK-NOT: DW_AT_type ; CHECK-NOT: DW_AT_type
; CHECK: NULL ; CHECK: NULL