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llvm-6502/test/DebugInfo/X86/gnu-public-names.ll
David Blaikie 129ab6c6c5 DebugInfo: Simplify/tidy/correct global variable decl/def emission handling. 
This fixes a bug (introduced by fixing the IR emitted from Clang where
the definition of a static member would be scoped within the class,
rather than within its lexical decl context) where the definition of a
static variable would be placed inside a class.

It also improves source fidelity by scoping static class member
definitions inside the lexical decl context in which tehy are written
(eg: namespace n { class foo { static int i; } int foo::i; } - the
definition of 'i' will be within the namespace 'n' in the DWARF output
now).

Lastly, and the original goal, this reduces debug info size slightly
(and makes debug info easier to read, etc) by placing the definitions of
non-member global variables within their namespace, rather than using a
separate namespace-scoped declaration along with a definition at global
scope.

Based on patches and discussion with Frédéric.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@220497 91177308-0d34-0410-b5e6-96231b3b80d8
2014-10-23 19:12:43 +00:00

334 lines
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; RUN: llc -mtriple=x86_64-pc-linux-gnu -generate-gnu-dwarf-pub-sections < %s | FileCheck -check-prefix=ASM %s
; RUN: llc -mtriple=x86_64-pc-linux-gnu -generate-gnu-dwarf-pub-sections -filetype=obj < %s | llvm-dwarfdump - | FileCheck %s
; ModuleID = 'dwarf-public-names.cpp'
;
; Generated from:
;
; struct C {
; void member_function();
; static int static_member_function();
; static int static_member_variable;
; };
;
; int C::static_member_variable = 0;
;
; void C::member_function() {
; static_member_variable = 0;
; }
;
; int C::static_member_function() {
; return static_member_variable;
; }
;
; C global_variable;
;
; int global_function() {
; return -1;
; }
;
; namespace ns {
; void global_namespace_function() {
; global_variable.member_function();
; }
; int global_namespace_variable = 1;
; struct D {
; int A;
; } d;
; }
; ASM: .section .debug_gnu_pubnames
; ASM: .byte 32 # Kind: VARIABLE, EXTERNAL
; ASM-NEXT: .asciz "global_variable" # External Name
; ASM: .section .debug_gnu_pubtypes
; ASM: .byte 16 # Kind: TYPE, EXTERNAL
; ASM-NEXT: .asciz "C" # External Name
; CHECK: .debug_info contents:
; CHECK: Compile Unit:
; CHECK: DW_AT_GNU_pubnames [DW_FORM_flag_present] (true)
; CHECK-NOT: DW_AT_GNU_pubtypes [
; CHECK: [[STATIC_MEM_VAR:0x[0-9a-f]+]]: DW_TAG_variable
; CHECK-NEXT: DW_AT_specification {{.*}} "static_member_variable"
; CHECK: [[C:0x[0-9a-f]+]]: DW_TAG_structure_type
; CHECK-NEXT: DW_AT_name {{.*}} "C"
; CHECK: DW_TAG_member
; CHECK-NEXT: DW_AT_name {{.*}} "static_member_variable"
; CHECK: DW_TAG_subprogram
; CHECK-NEXT: DW_AT_MIPS_linkage_name
; CHECK-NEXT: DW_AT_name {{.*}} "member_function"
; CHECK: DW_TAG_subprogram
; CHECK-NEXT: DW_AT_MIPS_linkage_name
; CHECK-NEXT: DW_AT_name {{.*}} "static_member_function"
; CHECK: [[INT:0x[0-9a-f]+]]: DW_TAG_base_type
; CHECK-NEXT: DW_AT_name {{.*}} "int"
; CHECK: [[GLOB_VAR:0x[0-9a-f]+]]: DW_TAG_variable
; CHECK-NEXT: DW_AT_name {{.*}} "global_variable"
; CHECK: [[NS:0x[0-9a-f]+]]: DW_TAG_namespace
; CHECK-NEXT: DW_AT_name {{.*}} "ns"
; CHECK: [[GLOB_NS_VAR:0x[0-9a-f]+]]: DW_TAG_variable
; CHECK-NEXT: DW_AT_name {{.*}} "global_namespace_variable"
; CHECK-NOT: DW_AT_specification
; CHECK: DW_AT_location
; CHECK-NOT: DW_AT_specification
; CHECK: [[D_VAR:0x[0-9a-f]+]]: DW_TAG_variable
; CHECK-NEXT: DW_AT_name {{.*}} "d"
; CHECK-NOT: DW_AT_specification
; CHECK: DW_AT_location
; CHECK-NOT: DW_AT_specification
; CHECK: [[D:0x[0-9a-f]+]]: DW_TAG_structure_type
; CHECK-NEXT: DW_AT_name {{.*}} "D"
; CHECK: [[GLOB_NS_FUNC:0x[0-9a-f]+]]: DW_TAG_subprogram
; CHECK-NOT: DW_TAG
; CHECK: DW_AT_MIPS_linkage_name
; CHECK-NOT: DW_TAG
; CHECK: DW_AT_name {{.*}} "global_namespace_function"
; CHECK: DW_TAG_subprogram
; CHECK-NOT: DW_TAG
; CHECK: DW_AT_name {{.*}} "f3"
; CHECK-NOT: {{DW_TAG|NULL}}
; CHECK: [[F3_Z:.*]]: DW_TAG_variable
; CHECK-NOT: DW_TAG
; CHECK: DW_AT_name {{.*}} "z"
; CHECK-NOT: {{DW_TAG|NULL}}
; CHECK: DW_AT_location
; CHECK-NOT: {{DW_TAG|NULL}}
; CHECK: NULL
; CHECK-NOT: {{DW_TAG|NULL}}
; CHECK: [[OUTER:.*]]: DW_TAG_namespace
; CHECK-NOT: DW_TAG
; CHECK: DW_AT_name {{.*}} "outer"
; CHECK-NOT: {{DW_TAG|NULL}}
; CHECK: [[OUTER_ANON:.*]]: DW_TAG_namespace
; CHECK-NOT: {{DW_TAG|NULL}}
; CHECK-NOT: DW_AT_name
; CHECK: [[OUTER_ANON_C:.*]]: DW_TAG_variable
; CHECK-NOT: DW_TAG
; CHECK: DW_AT_name {{.*}} "c"
; CHECK-NOT: {{DW_TAG|NULL}}
; CHECK: NULL
; CHECK-NOT: {{DW_TAG|NULL}}
; FIXME: We probably shouldn't bother describing the implicit
; import of the preceding anonymous namespace. This should be fixed
; in clang.
; CHECK: DW_TAG_imported_module
; CHECK-NOT: {{DW_TAG|NULL}}
; CHECK: NULL
; CHECK-NOT: {{DW_TAG|NULL}}
; CHECK: [[ANON:.*]]: DW_TAG_namespace
; CHECK-NOT: DW_AT_name
; CHECK: [[ANON_INNER:.*]]: DW_TAG_namespace
; CHECK-NOT: DW_TAG
; CHECK: DW_AT_name {{.*}} "inner"
; CHECK-NOT: {{DW_TAG|NULL}}
; CHECK: [[ANON_INNER_B:.*]]: DW_TAG_variable
; CHECK-NOT: DW_TAG
; CHECK: DW_AT_name {{.*}} "b"
; CHECK-NOT: {{DW_TAG|NULL}}
; CHECK: NULL
; CHECK-NOT: {{DW_TAG|NULL}}
; CHECK: [[ANON_I:.*]]: DW_TAG_variable
; CHECK-NOT: DW_TAG
; CHECK: DW_AT_name {{.*}} "i"
; CHECK-NOT: {{DW_TAG|NULL}}
; CHECK: NULL
; CHECK-NOT: {{DW_TAG|NULL}}
; CHECK: [[MEM_FUNC:0x[0-9a-f]+]]: DW_TAG_subprogram
; CHECK-NOT: DW_TAG
; CHECK: DW_AT_specification {{.*}} "_ZN1C15member_functionEv"
; CHECK: [[STATIC_MEM_FUNC:0x[0-9a-f]+]]: DW_TAG_subprogram
; CHECK-NOT: DW_TAG
; CHECK: DW_AT_specification {{.*}} "_ZN1C22static_member_functionEv"
; CHECK: [[GLOBAL_FUNC:0x[0-9a-f]+]]: DW_TAG_subprogram
; CHECK-NOT: DW_TAG
; CHECK: DW_AT_MIPS_linkage_name
; CHECK-NOT: DW_TAG
; CHECK: DW_AT_name {{.*}} "global_function"
; CHECK-LABEL: .debug_gnu_pubnames contents:
; CHECK-NEXT: length = {{.*}} version = 0x0002 unit_offset = 0x00000000 unit_size = {{.*}}
; CHECK-NEXT: Offset Linkage Kind Name
; CHECK-DAG: [[GLOBAL_FUNC]] EXTERNAL FUNCTION "global_function"
; CHECK-DAG: [[NS]] EXTERNAL TYPE "ns"
; CHECK-DAG: [[MEM_FUNC]] EXTERNAL FUNCTION "C::member_function"
; CHECK-DAG: [[GLOB_VAR]] EXTERNAL VARIABLE "global_variable"
; CHECK-DAG: [[GLOB_NS_VAR]] EXTERNAL VARIABLE "ns::global_namespace_variable"
; CHECK-DAG: [[GLOB_NS_FUNC]] EXTERNAL FUNCTION "ns::global_namespace_function"
; CHECK-DAG: [[D_VAR]] EXTERNAL VARIABLE "ns::d"
; CHECK-DAG: [[STATIC_MEM_VAR]] EXTERNAL VARIABLE "C::static_member_variable"
; CHECK-DAG: [[STATIC_MEM_FUNC]] EXTERNAL FUNCTION "C::static_member_function"
; CHECK-DAG: [[ANON]] EXTERNAL TYPE "(anonymous namespace)"
; CHECK-DAG: [[ANON_INNER]] EXTERNAL TYPE "(anonymous namespace)::inner"
; CHECK-DAG: [[OUTER]] EXTERNAL TYPE "outer"
; CHECK-DAG: [[OUTER_ANON]] EXTERNAL TYPE "outer::(anonymous namespace)"
; CHECK-DAG: [[ANON_I]] STATIC VARIABLE "(anonymous namespace)::i"
; CHECK-DAG: [[ANON_INNER_B]] STATIC VARIABLE "(anonymous namespace)::inner::b"
; CHECK-DAG: [[OUTER_ANON_C]] STATIC VARIABLE "outer::(anonymous namespace)::c"
; GCC Doesn't put local statics in pubnames, but it seems not unreasonable and
; comes out naturally from LLVM's implementation, so I'm OK with it for now. If
; it's demonstrated that this is a major size concern or degrades debug info
; consumer behavior, feel free to change it.
; CHECK-DAG: [[F3_Z]] STATIC VARIABLE "f3::z"
; CHECK-LABEL: debug_gnu_pubtypes contents:
; CHECK: Offset Linkage Kind Name
; CHECK-DAG: [[C]] EXTERNAL TYPE "C"
; CHECK-DAG: [[D]] EXTERNAL TYPE "ns::D"
; CHECK-DAG: [[INT]] STATIC TYPE "int"
%struct.C = type { i8 }
%"struct.ns::D" = type { i32 }
@_ZN1C22static_member_variableE = global i32 0, align 4
@global_variable = global %struct.C zeroinitializer, align 1
@_ZN2ns25global_namespace_variableE = global i32 1, align 4
@_ZN2ns1dE = global %"struct.ns::D" zeroinitializer, align 4
@_ZZ2f3vE1z = internal global i32 0, align 4
@_ZN12_GLOBAL__N_11iE = internal global i32 0, align 4
@_ZN12_GLOBAL__N_15inner1bE = internal global i32 0, align 4
@_ZN5outer12_GLOBAL__N_11cE = internal global i32 0, align 4
; Function Attrs: nounwind uwtable
define void @_ZN1C15member_functionEv(%struct.C* %this) #0 align 2 {
entry:
%this.addr = alloca %struct.C*, align 8
store %struct.C* %this, %struct.C** %this.addr, align 8
call void @llvm.dbg.declare(metadata !{%struct.C** %this.addr}, metadata !50, metadata !{metadata !"0x102"}), !dbg !52
%this1 = load %struct.C** %this.addr
store i32 0, i32* @_ZN1C22static_member_variableE, align 4, !dbg !53
ret void, !dbg !54
}
; Function Attrs: nounwind readnone
declare void @llvm.dbg.declare(metadata, metadata, metadata) #1
; Function Attrs: nounwind uwtable
define i32 @_ZN1C22static_member_functionEv() #0 align 2 {
entry:
%0 = load i32* @_ZN1C22static_member_variableE, align 4, !dbg !55
ret i32 %0, !dbg !55
}
; Function Attrs: nounwind uwtable
define i32 @_Z15global_functionv() #0 {
entry:
ret i32 -1, !dbg !56
}
; Function Attrs: nounwind uwtable
define void @_ZN2ns25global_namespace_functionEv() #0 {
entry:
call void @_ZN1C15member_functionEv(%struct.C* @global_variable), !dbg !57
ret void, !dbg !58
}
; Function Attrs: nounwind uwtable
define i32* @_Z2f3v() #0 {
entry:
ret i32* @_ZZ2f3vE1z, !dbg !59
}
; Function Attrs: nounwind uwtable
define i32 @_Z2f7v() #0 {
entry:
%0 = load i32* @_ZN12_GLOBAL__N_11iE, align 4, !dbg !60
%call = call i32* @_Z2f3v(), !dbg !60
%1 = load i32* %call, align 4, !dbg !60
%add = add nsw i32 %0, %1, !dbg !60
%2 = load i32* @_ZN12_GLOBAL__N_15inner1bE, align 4, !dbg !60
%add1 = add nsw i32 %add, %2, !dbg !60
%3 = load i32* @_ZN5outer12_GLOBAL__N_11cE, align 4, !dbg !60
%add2 = add nsw i32 %add1, %3, !dbg !60
ret i32 %add2, !dbg !60
}
attributes #0 = { nounwind uwtable "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
attributes #1 = { nounwind readnone }
!llvm.dbg.cu = !{!0}
!llvm.module.flags = !{!47, !48}
!llvm.ident = !{!49}
!0 = metadata !{metadata !"0x11\004\00clang version 3.5.0 \000\00\000\00\001", metadata !1, metadata !2, metadata !3, metadata !19, metadata !32, metadata !45} ; [ DW_TAG_compile_unit ] [/tmp/dbginfo/pubnames.cpp] [DW_LANG_C_plus_plus]
!1 = metadata !{metadata !"pubnames.cpp", metadata !"/tmp/dbginfo"}
!2 = metadata !{}
!3 = metadata !{metadata !4, metadata !15}
!4 = metadata !{metadata !"0x13\00C\001\008\008\000\000\000", metadata !1, null, null, metadata !5, null, null, metadata !"_ZTS1C"} ; [ DW_TAG_structure_type ] [C] [line 1, size 8, align 8, offset 0] [def] [from ]
!5 = metadata !{metadata !6, metadata !8, metadata !12}
!6 = metadata !{metadata !"0xd\00static_member_variable\004\000\000\000\004096", metadata !1, metadata !"_ZTS1C", metadata !7, null} ; [ DW_TAG_member ] [static_member_variable] [line 4, size 0, align 0, offset 0] [static] [from int]
!7 = metadata !{metadata !"0x24\00int\000\0032\0032\000\000\005", null, null} ; [ DW_TAG_base_type ] [int] [line 0, size 32, align 32, offset 0, enc DW_ATE_signed]
!8 = metadata !{metadata !"0x2e\00member_function\00member_function\00_ZN1C15member_functionEv\002\000\000\000\006\00256\000\002", metadata !1, metadata !"_ZTS1C", metadata !9, null, null, null, i32 0, null} ; [ DW_TAG_subprogram ] [line 2] [member_function]
!9 = metadata !{metadata !"0x15\00\000\000\000\000\000\000", i32 0, null, null, metadata !10, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
!10 = metadata !{null, metadata !11}
!11 = metadata !{metadata !"0xf\00\000\0064\0064\000\001088", null, null, metadata !"_ZTS1C"} ; [ DW_TAG_pointer_type ] [line 0, size 64, align 64, offset 0] [artificial] [from _ZTS1C]
!12 = metadata !{metadata !"0x2e\00static_member_function\00static_member_function\00_ZN1C22static_member_functionEv\003\000\000\000\006\00256\000\003", metadata !1, metadata !"_ZTS1C", metadata !13, null, null, null, i32 0, null} ; [ DW_TAG_subprogram ] [line 3] [static_member_function]
!13 = metadata !{metadata !"0x15\00\000\000\000\000\000\000", i32 0, null, null, metadata !14, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
!14 = metadata !{metadata !7}
!15 = metadata !{metadata !"0x13\00D\0028\0032\0032\000\000\000", metadata !1, metadata !16, null, metadata !17, null, null, metadata !"_ZTSN2ns1DE"} ; [ DW_TAG_structure_type ] [D] [line 28, size 32, align 32, offset 0] [def] [from ]
!16 = metadata !{metadata !"0x39\00ns\0023", metadata !1, null} ; [ DW_TAG_namespace ] [ns] [line 23]
!17 = metadata !{metadata !18}
!18 = metadata !{metadata !"0xd\00A\0029\0032\0032\000\000", metadata !1, metadata !"_ZTSN2ns1DE", metadata !7} ; [ DW_TAG_member ] [A] [line 29, size 32, align 32, offset 0] [from int]
!19 = metadata !{metadata !20, metadata !21, metadata !22, metadata !24, metadata !27, metadata !31}
!20 = metadata !{metadata !"0x2e\00member_function\00member_function\00_ZN1C15member_functionEv\009\000\001\000\006\00256\000\009", metadata !1, metadata !"_ZTS1C", metadata !9, null, void (%struct.C*)* @_ZN1C15member_functionEv, null, metadata !8, metadata !2} ; [ DW_TAG_subprogram ] [line 9] [def] [member_function]
!21 = metadata !{metadata !"0x2e\00static_member_function\00static_member_function\00_ZN1C22static_member_functionEv\0013\000\001\000\006\00256\000\0013", metadata !1, metadata !"_ZTS1C", metadata !13, null, i32 ()* @_ZN1C22static_member_functionEv, null, metadata !12, metadata !2} ; [ DW_TAG_subprogram ] [line 13] [def] [static_member_function]
!22 = metadata !{metadata !"0x2e\00global_function\00global_function\00_Z15global_functionv\0019\000\001\000\006\00256\000\0019", metadata !1, metadata !23, metadata !13, null, i32 ()* @_Z15global_functionv, null, null, metadata !2} ; [ DW_TAG_subprogram ] [line 19] [def] [global_function]
!23 = metadata !{metadata !"0x29", metadata !1} ; [ DW_TAG_file_type ] [/tmp/dbginfo/pubnames.cpp]
!24 = metadata !{metadata !"0x2e\00global_namespace_function\00global_namespace_function\00_ZN2ns25global_namespace_functionEv\0024\000\001\000\006\00256\000\0024", metadata !1, metadata !16, metadata !25, null, void ()* @_ZN2ns25global_namespace_functionEv, null, null, metadata !2} ; [ DW_TAG_subprogram ] [line 24] [def] [global_namespace_function]
!25 = metadata !{metadata !"0x15\00\000\000\000\000\000\000", i32 0, null, null, metadata !26, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
!26 = metadata !{null}
!27 = metadata !{metadata !"0x2e\00f3\00f3\00_Z2f3v\0037\000\001\000\006\00256\000\0037", metadata !1, metadata !23, metadata !28, null, i32* ()* @_Z2f3v, null, null, metadata !2} ; [ DW_TAG_subprogram ] [line 37] [def] [f3]
!28 = metadata !{metadata !"0x15\00\000\000\000\000\000\000", i32 0, null, null, metadata !29, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
!29 = metadata !{metadata !30}
!30 = metadata !{metadata !"0xf\00\000\0064\0064\000\000", null, null, metadata !7} ; [ DW_TAG_pointer_type ] [line 0, size 64, align 64, offset 0] [from int]
!31 = metadata !{metadata !"0x2e\00f7\00f7\00_Z2f7v\0054\000\001\000\006\00256\000\0054", metadata !1, metadata !23, metadata !13, null, i32 ()* @_Z2f7v, null, null, metadata !2} ; [ DW_TAG_subprogram ] [line 54] [def] [f7]
!32 = metadata !{metadata !33, metadata !34, metadata !35, metadata !36, metadata !37, metadata !38, metadata !41, metadata !44}
!33 = metadata !{metadata !"0x34\00static_member_variable\00static_member_variable\00_ZN1C22static_member_variableE\007\000\001", null, metadata !23, metadata !7, i32* @_ZN1C22static_member_variableE, metadata !6} ; [ DW_TAG_variable ] [static_member_variable] [line 7] [def]
!34 = metadata !{metadata !"0x34\00global_variable\00global_variable\00\0017\000\001", null, metadata !23, metadata !"_ZTS1C", %struct.C* @global_variable, null} ; [ DW_TAG_variable ] [global_variable] [line 17] [def]
!35 = metadata !{metadata !"0x34\00global_namespace_variable\00global_namespace_variable\00_ZN2ns25global_namespace_variableE\0027\000\001", metadata !16, metadata !23, metadata !7, i32* @_ZN2ns25global_namespace_variableE, null} ; [ DW_TAG_variable ] [global_namespace_variable] [line 27] [def]
!36 = metadata !{metadata !"0x34\00d\00d\00_ZN2ns1dE\0030\000\001", metadata !16, metadata !23, metadata !"_ZTSN2ns1DE", %"struct.ns::D"* @_ZN2ns1dE, null} ; [ DW_TAG_variable ] [d] [line 30] [def]
!37 = metadata !{metadata !"0x34\00z\00z\00\0038\001\001", metadata !27, metadata !23, metadata !7, i32* @_ZZ2f3vE1z, null} ; [ DW_TAG_variable ] [z] [line 38] [local] [def]
!38 = metadata !{metadata !"0x34\00c\00c\00_ZN5outer12_GLOBAL__N_11cE\0050\001\001", metadata !39, metadata !23, metadata !7, i32* @_ZN5outer12_GLOBAL__N_11cE, null} ; [ DW_TAG_variable ] [c] [line 50] [local] [def]
!39 = metadata !{metadata !"0x39\00\0049", metadata !1, metadata !40} ; [ DW_TAG_namespace ] [line 49]
!40 = metadata !{metadata !"0x39\00outer\0048", metadata !1, null} ; [ DW_TAG_namespace ] [outer] [line 48]
!41 = metadata !{metadata !"0x34\00b\00b\00_ZN12_GLOBAL__N_15inner1bE\0044\001\001", metadata !42, metadata !23, metadata !7, i32* @_ZN12_GLOBAL__N_15inner1bE, null} ; [ DW_TAG_variable ] [b] [line 44] [local] [def]
!42 = metadata !{metadata !"0x39\00inner\0043", metadata !1, metadata !43} ; [ DW_TAG_namespace ] [inner] [line 43]
!43 = metadata !{metadata !"0x39\00\0033", metadata !1, null} ; [ DW_TAG_namespace ] [line 33]
!44 = metadata !{metadata !"0x34\00i\00i\00_ZN12_GLOBAL__N_11iE\0034\001\001", metadata !43, metadata !23, metadata !7, i32* @_ZN12_GLOBAL__N_11iE, null} ; [ DW_TAG_variable ] [i] [line 34] [local] [def]
!45 = metadata !{metadata !46}
!46 = metadata !{metadata !"0x3a\0040\00", metadata !40, metadata !39} ; [ DW_TAG_imported_module ]
!47 = metadata !{i32 2, metadata !"Dwarf Version", i32 4}
!48 = metadata !{i32 2, metadata !"Debug Info Version", i32 2}
!49 = metadata !{metadata !"clang version 3.5.0 "}
!50 = metadata !{metadata !"0x101\00this\0016777216\001088", metadata !20, null, metadata !51} ; [ DW_TAG_arg_variable ] [this] [line 0]
!51 = metadata !{metadata !"0xf\00\000\0064\0064\000\000", null, null, metadata !"_ZTS1C"} ; [ DW_TAG_pointer_type ] [line 0, size 64, align 64, offset 0] [from _ZTS1C]
!52 = metadata !{i32 0, i32 0, metadata !20, null}
!53 = metadata !{i32 10, i32 0, metadata !20, null}
!54 = metadata !{i32 11, i32 0, metadata !20, null}
!55 = metadata !{i32 14, i32 0, metadata !21, null}
!56 = metadata !{i32 20, i32 0, metadata !22, null}
!57 = metadata !{i32 25, i32 0, metadata !24, null}
!58 = metadata !{i32 26, i32 0, metadata !24, null}
!59 = metadata !{i32 39, i32 0, metadata !27, null}
!60 = metadata !{i32 55, i32 0, metadata !31, null}
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