xref: /llvm-project/llvm/test/CodeGen/AArch64/GlobalISel/irtranslator-extract-used-by-dbg.ll (revision 087172258a50d5bcabe43aff072a20701f0808ef) 
1; RUN: llc -O0 -stop-after=irtranslator -global-isel -verify-machineinstrs %s -o - 2>&1 | FileCheck %s
2; RUN: llc -O0 -stop-after=irtranslator -global-isel -verify-machineinstrs %s -o - 2>&1 --try-experimental-debuginfo-iterators | FileCheck %s
3
4target datalayout = "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128"
5target triple = "aarch64-unknown-fuchsia"
6
7declare void @llvm.dbg.value(metadata, metadata, metadata) #0
8; Check that we don't crash when we have a metadata use of %i not being dominated by the def.
9; CHECK-LABEL: @foo
10; CHECK: DBG_VALUE %1:_(p0), $noreg, !370, !DIExpression(DW_OP_LLVM_fragment, 0, 64)
11define hidden void @foo() unnamed_addr #1 !dbg !230 {
12  br i1 undef, label %bb4, label %bb5
13
14bb4:                                              ; preds = %bb3
15  %i = extractvalue { ptr, i64 } undef, 0
16  ret void
17
18bb5:                                              ; preds = %bb3
19  call void @llvm.dbg.value(metadata ptr %i, metadata !370, metadata !DIExpression(DW_OP_LLVM_fragment, 0, 64)), !dbg !372
20  ret void
21}
22
23attributes #0 = { nofree nosync nounwind readnone speculatable willreturn }
24attributes #1 = { "target-cpu"="generic" }
25
26!llvm.dbg.cu = !{!0}
27!llvm.module.flags = !{!229}
28
29!0 = distinct !DICompileUnit(language: DW_LANG_Rust, file: !1, producer: "rustc", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, globals: !228)
30!1 = !DIFile(filename: "library/std/src/lib.rs", directory: "/b/s/w/ir/x/w/rust")
31!2 = !{!3, !11, !16, !25, !31, !36, !45, !68, !75, !83, !90, !97, !106, !115, !121, !131, !153, !159, !163, !168, !179, !184, !189, !192, !194, !210}
32!3 = !DICompositeType(tag: DW_TAG_enumeration_type, name: "c_void", scope: !5, file: !4, baseType: !7, size: 8, align: 8, flags: DIFlagEnumClass, elements: !8)
33!4 = !DIFile(filename: "<unknown>", directory: "")
34!5 = !DINamespace(name: "ffi", scope: !6)
35!6 = !DINamespace(name: "core", scope: null)
36!7 = !DIBasicType(name: "u8", size: 8, encoding: DW_ATE_unsigned)
37!8 = !{!9, !10}
38!9 = !DIEnumerator(name: "__variant1", value: 0, isUnsigned: true)
39!10 = !DIEnumerator(name: "__variant2", value: 1, isUnsigned: true)
40!11 = !DICompositeType(tag: DW_TAG_enumeration_type, name: "Option", scope: !12, file: !4, baseType: !7, size: 8, align: 8, flags: DIFlagEnumClass, elements: !13)
41!12 = !DINamespace(name: "option", scope: !6)
42!13 = !{!14, !15}
43!14 = !DIEnumerator(name: "None", value: 0)
44!15 = !DIEnumerator(name: "Some", value: 1)
45!16 = !DICompositeType(tag: DW_TAG_enumeration_type, name: "EscapeUnicodeState", scope: !17, file: !4, baseType: !7, size: 8, align: 8, flags: DIFlagEnumClass, elements: !18)
46!17 = !DINamespace(name: "char", scope: !6)
47!18 = !{!19, !20, !21, !22, !23, !24}
48!19 = !DIEnumerator(name: "Done", value: 0)
49!20 = !DIEnumerator(name: "RightBrace", value: 1)
50!21 = !DIEnumerator(name: "Value", value: 2)
51!22 = !DIEnumerator(name: "LeftBrace", value: 3)
52!23 = !DIEnumerator(name: "Type", value: 4)
53!24 = !DIEnumerator(name: "Backslash", value: 5)
54!25 = !DICompositeType(tag: DW_TAG_enumeration_type, name: "Format", scope: !26, file: !4, baseType: !7, size: 8, align: 8, flags: DIFlagEnumClass, elements: !28)
55!26 = !DINamespace(name: "common", scope: !27)
56!27 = !DINamespace(name: "gimli", scope: null)
57!28 = !{!29, !30}
58!29 = !DIEnumerator(name: "Dwarf64", value: 8)
59!30 = !DIEnumerator(name: "Dwarf32", value: 4)
60!31 = !DICompositeType(tag: DW_TAG_enumeration_type, name: "Result", scope: !32, file: !4, baseType: !7, size: 8, align: 8, flags: DIFlagEnumClass, elements: !33)
61!32 = !DINamespace(name: "result", scope: !6)
62!33 = !{!34, !35}
63!34 = !DIEnumerator(name: "Ok", value: 0)
64!35 = !DIEnumerator(name: "Err", value: 1)
65!36 = !DICompositeType(tag: DW_TAG_enumeration_type, name: "Alignment", scope: !37, file: !4, baseType: !7, size: 8, align: 8, flags: DIFlagEnumClass, elements: !40)
66!37 = !DINamespace(name: "v1", scope: !38)
67!38 = !DINamespace(name: "rt", scope: !39)
68!39 = !DINamespace(name: "fmt", scope: !6)
69!40 = !{!41, !42, !43, !44}
70!41 = !DIEnumerator(name: "Left", value: 0)
71!42 = !DIEnumerator(name: "Right", value: 1)
72!43 = !DIEnumerator(name: "Center", value: 2)
73!44 = !DIEnumerator(name: "Unknown", value: 3)
74!45 = !DICompositeType(tag: DW_TAG_enumeration_type, name: "ErrorKind", scope: !46, file: !4, baseType: !7, size: 8, align: 8, flags: DIFlagEnumClass, elements: !49)
75!46 = !DINamespace(name: "error", scope: !47)
76!47 = !DINamespace(name: "io", scope: !48)
77!48 = !DINamespace(name: "std", scope: null)
78!49 = !{!50, !51, !52, !53, !54, !55, !56, !57, !58, !59, !60, !61, !62, !63, !64, !65, !66, !67}
79!50 = !DIEnumerator(name: "NotFound", value: 0)
80!51 = !DIEnumerator(name: "PermissionDenied", value: 1)
81!52 = !DIEnumerator(name: "ConnectionRefused", value: 2)
82!53 = !DIEnumerator(name: "ConnectionReset", value: 3)
83!54 = !DIEnumerator(name: "ConnectionAborted", value: 4)
84!55 = !DIEnumerator(name: "NotConnected", value: 5)
85!56 = !DIEnumerator(name: "AddrInUse", value: 6)
86!57 = !DIEnumerator(name: "AddrNotAvailable", value: 7)
87!58 = !DIEnumerator(name: "BrokenPipe", value: 8)
88!59 = !DIEnumerator(name: "AlreadyExists", value: 9)
89!60 = !DIEnumerator(name: "WouldBlock", value: 10)
90!61 = !DIEnumerator(name: "InvalidInput", value: 11)
91!62 = !DIEnumerator(name: "InvalidData", value: 12)
92!63 = !DIEnumerator(name: "TimedOut", value: 13)
93!64 = !DIEnumerator(name: "WriteZero", value: 14)
94!65 = !DIEnumerator(name: "Interrupted", value: 15)
95!66 = !DIEnumerator(name: "Other", value: 16)
96!67 = !DIEnumerator(name: "UnexpectedEof", value: 17)
97!68 = !DICompositeType(tag: DW_TAG_enumeration_type, name: "Ordering", scope: !69, file: !4, baseType: !70, size: 8, align: 8, flags: DIFlagEnumClass, elements: !71)
98!69 = !DINamespace(name: "cmp", scope: !6)
99!70 = !DIBasicType(name: "i8", size: 8, encoding: DW_ATE_signed)
100!71 = !{!72, !73, !74}
101!72 = !DIEnumerator(name: "Less", value: -1)
102!73 = !DIEnumerator(name: "Equal", value: 0)
103!74 = !DIEnumerator(name: "Greater", value: 1)
104!75 = !DICompositeType(tag: DW_TAG_enumeration_type, name: "DtorState", scope: !76, file: !4, baseType: !7, size: 8, align: 8, flags: DIFlagEnumClass, elements: !79)
105!76 = !DINamespace(name: "fast", scope: !77)
106!77 = !DINamespace(name: "local", scope: !78)
107!78 = !DINamespace(name: "thread", scope: !48)
108!79 = !{!80, !81, !82}
109!80 = !DIEnumerator(name: "Unregistered", value: 0)
110!81 = !DIEnumerator(name: "Registered", value: 1)
111!82 = !DIEnumerator(name: "RunningOrHasRun", value: 2)
112!83 = !DICompositeType(tag: DW_TAG_enumeration_type, name: "State", scope: !84, file: !4, baseType: !7, size: 8, align: 8, flags: DIFlagEnumClass, elements: !85)
113!84 = !DINamespace(name: "path", scope: !48)
114!85 = !{!86, !87, !88, !89}
115!86 = !DIEnumerator(name: "Prefix", value: 0)
116!87 = !DIEnumerator(name: "StartDir", value: 1)
117!88 = !DIEnumerator(name: "Body", value: 2)
118!89 = !DIEnumerator(name: "Done", value: 3)
119!90 = !DICompositeType(tag: DW_TAG_enumeration_type, name: "PrintFmt", scope: !91, file: !4, baseType: !7, size: 8, align: 8, flags: DIFlagEnumClass, elements: !93)
120!91 = !DINamespace(name: "print", scope: !92)
121!92 = !DINamespace(name: "backtrace_rs", scope: !48)
122!93 = !{!94, !95, !96}
123!94 = !DIEnumerator(name: "Short", value: 0)
124!95 = !DIEnumerator(name: "Full", value: 1)
125!96 = !DIEnumerator(name: "__Nonexhaustive", value: 2)
126!97 = !DICompositeType(tag: DW_TAG_enumeration_type, name: "IntErrorKind", scope: !98, file: !4, baseType: !7, size: 8, align: 8, flags: DIFlagEnumClass, elements: !100)
127!98 = !DINamespace(name: "error", scope: !99)
128!99 = !DINamespace(name: "num", scope: !6)
129!100 = !{!101, !102, !103, !104, !105}
130!101 = !DIEnumerator(name: "Empty", value: 0)
131!102 = !DIEnumerator(name: "InvalidDigit", value: 1)
132!103 = !DIEnumerator(name: "Overflow", value: 2)
133!104 = !DIEnumerator(name: "Underflow", value: 3)
134!105 = !DIEnumerator(name: "Zero", value: 4)
135!106 = !DICompositeType(tag: DW_TAG_enumeration_type, name: "Ordering", scope: !107, file: !4, baseType: !7, size: 8, align: 8, flags: DIFlagEnumClass, elements: !109)
136!107 = !DINamespace(name: "atomic", scope: !108)
137!108 = !DINamespace(name: "sync", scope: !6)
138!109 = !{!110, !111, !112, !113, !114}
139!110 = !DIEnumerator(name: "Relaxed", value: 0)
140!111 = !DIEnumerator(name: "Release", value: 1)
141!112 = !DIEnumerator(name: "Acquire", value: 2)
142!113 = !DIEnumerator(name: "AcqRel", value: 3)
143!114 = !DIEnumerator(name: "SeqCst", value: 4)
144!115 = !DICompositeType(tag: DW_TAG_enumeration_type, name: "AllocInit", scope: !116, file: !4, baseType: !7, size: 8, align: 8, flags: DIFlagEnumClass, elements: !118)
145!116 = !DINamespace(name: "raw_vec", scope: !117)
146!117 = !DINamespace(name: "alloc", scope: null)
147!118 = !{!119, !120}
148!119 = !DIEnumerator(name: "Uninitialized", value: 0)
149!120 = !DIEnumerator(name: "Zeroed", value: 1)
150!121 = !DICompositeType(tag: DW_TAG_enumeration_type, name: "TINFLStatus", scope: !122, file: !4, baseType: !70, size: 8, align: 8, flags: DIFlagEnumClass, elements: !124)
151!122 = !DINamespace(name: "inflate", scope: !123)
152!123 = !DINamespace(name: "miniz_oxide", scope: null)
153!124 = !{!125, !126, !127, !128, !19, !129, !130}
154!125 = !DIEnumerator(name: "FailedCannotMakeProgress", value: 252)
155!126 = !DIEnumerator(name: "BadParam", value: 253)
156!127 = !DIEnumerator(name: "Adler32Mismatch", value: 254)
157!128 = !DIEnumerator(name: "Failed", value: 255)
158!129 = !DIEnumerator(name: "NeedsMoreInput", value: 1)
159!130 = !DIEnumerator(name: "HasMoreOutput", value: 2)
160!131 = !DICompositeType(tag: DW_TAG_enumeration_type, name: "SectionId", scope: !26, file: !4, baseType: !7, size: 8, align: 8, flags: DIFlagEnumClass, elements: !132)
161!132 = !{!133, !134, !135, !136, !137, !138, !139, !140, !141, !142, !143, !144, !145, !146, !147, !148, !149, !150, !151, !152}
162!133 = !DIEnumerator(name: "DebugAbbrev", value: 0)
163!134 = !DIEnumerator(name: "DebugAddr", value: 1)
164!135 = !DIEnumerator(name: "DebugAranges", value: 2)
165!136 = !DIEnumerator(name: "DebugFrame", value: 3)
166!137 = !DIEnumerator(name: "EhFrame", value: 4)
167!138 = !DIEnumerator(name: "EhFrameHdr", value: 5)
168!139 = !DIEnumerator(name: "DebugInfo", value: 6)
169!140 = !DIEnumerator(name: "DebugLine", value: 7)
170!141 = !DIEnumerator(name: "DebugLineStr", value: 8)
171!142 = !DIEnumerator(name: "DebugLoc", value: 9)
172!143 = !DIEnumerator(name: "DebugLocLists", value: 10)
173!144 = !DIEnumerator(name: "DebugMacinfo", value: 11)
174!145 = !DIEnumerator(name: "DebugMacro", value: 12)
175!146 = !DIEnumerator(name: "DebugPubNames", value: 13)
176!147 = !DIEnumerator(name: "DebugPubTypes", value: 14)
177!148 = !DIEnumerator(name: "DebugRanges", value: 15)
178!149 = !DIEnumerator(name: "DebugRngLists", value: 16)
179!150 = !DIEnumerator(name: "DebugStr", value: 17)
180!151 = !DIEnumerator(name: "DebugStrOffsets", value: 18)
181!152 = !DIEnumerator(name: "DebugTypes", value: 19)
182!153 = !DICompositeType(tag: DW_TAG_enumeration_type, name: "BacktraceStatus", scope: !154, file: !4, baseType: !7, size: 8, align: 8, flags: DIFlagEnumClass, elements: !155)
183!154 = !DINamespace(name: "backtrace", scope: !48)
184!155 = !{!156, !157, !158}
185!156 = !DIEnumerator(name: "Unsupported", value: 0)
186!157 = !DIEnumerator(name: "Disabled", value: 1)
187!158 = !DIEnumerator(name: "Captured", value: 2)
188!159 = !DICompositeType(tag: DW_TAG_enumeration_type, name: "FloatErrorKind", scope: !160, file: !4, baseType: !7, size: 8, align: 8, flags: DIFlagEnumClass, elements: !161)
189!160 = !DINamespace(name: "dec2flt", scope: !99)
190!161 = !{!101, !162}
191!162 = !DIEnumerator(name: "Invalid", value: 1)
192!163 = !DICompositeType(tag: DW_TAG_enumeration_type, name: "CharErrorKind", scope: !164, file: !4, baseType: !7, size: 8, align: 8, flags: DIFlagEnumClass, elements: !165)
193!164 = !DINamespace(name: "convert", scope: !17)
194!165 = !{!166, !167}
195!166 = !DIEnumerator(name: "EmptyString", value: 0)
196!167 = !DIEnumerator(name: "TooManyChars", value: 1)
197!168 = !DICompositeType(tag: DW_TAG_enumeration_type, name: "Ipv6MulticastScope", scope: !169, file: !4, baseType: !7, size: 8, align: 8, flags: DIFlagEnumClass, elements: !171)
198!169 = !DINamespace(name: "ip", scope: !170)
199!170 = !DINamespace(name: "net", scope: !48)
200!171 = !{!172, !173, !174, !175, !176, !177, !178}
201!172 = !DIEnumerator(name: "InterfaceLocal", value: 0)
202!173 = !DIEnumerator(name: "LinkLocal", value: 1)
203!174 = !DIEnumerator(name: "RealmLocal", value: 2)
204!175 = !DIEnumerator(name: "AdminLocal", value: 3)
205!176 = !DIEnumerator(name: "SiteLocal", value: 4)
206!177 = !DIEnumerator(name: "OrganizationLocal", value: 5)
207!178 = !DIEnumerator(name: "Global", value: 6)
208!179 = !DICompositeType(tag: DW_TAG_enumeration_type, name: "Shutdown", scope: !170, file: !4, baseType: !7, size: 8, align: 8, flags: DIFlagEnumClass, elements: !180)
209!180 = !{!181, !182, !183}
210!181 = !DIEnumerator(name: "Read", value: 0)
211!182 = !DIEnumerator(name: "Write", value: 1)
212!183 = !DIEnumerator(name: "Both", value: 2)
213!184 = !DICompositeType(tag: DW_TAG_enumeration_type, name: "TryRecvError", scope: !185, file: !4, baseType: !7, size: 8, align: 8, flags: DIFlagEnumClass, elements: !187)
214!185 = !DINamespace(name: "mpsc", scope: !186)
215!186 = !DINamespace(name: "sync", scope: !48)
216!187 = !{!101, !188}
217!188 = !DIEnumerator(name: "Disconnected", value: 1)
218!189 = !DICompositeType(tag: DW_TAG_enumeration_type, name: "RecvTimeoutError", scope: !185, file: !4, baseType: !7, size: 8, align: 8, flags: DIFlagEnumClass, elements: !190)
219!190 = !{!191, !188}
220!191 = !DIEnumerator(name: "Timeout", value: 0)
221!192 = !DICompositeType(tag: DW_TAG_enumeration_type, name: "Failure", scope: !193, file: !4, baseType: !7, size: 8, align: 8, flags: DIFlagEnumClass, elements: !187)
222!193 = !DINamespace(name: "sync", scope: !185)
223!194 = !DICompositeType(tag: DW_TAG_enumeration_type, name: "_Unwind_Reason_Code", scope: !195, file: !4, baseType: !198, size: 32, align: 32, flags: DIFlagEnumClass, elements: !199)
224!195 = !DINamespace(name: "uw", scope: !196)
225!196 = !DINamespace(name: "libunwind", scope: !197)
226!197 = !DINamespace(name: "backtrace", scope: !92)
227!198 = !DIBasicType(name: "u32", size: 32, encoding: DW_ATE_unsigned)
228!199 = !{!200, !201, !202, !203, !204, !205, !206, !207, !208, !209}
229!200 = !DIEnumerator(name: "_URC_NO_REASON", value: 0)
230!201 = !DIEnumerator(name: "_URC_FOREIGN_EXCEPTION_CAUGHT", value: 1)
231!202 = !DIEnumerator(name: "_URC_FATAL_PHASE2_ERROR", value: 2)
232!203 = !DIEnumerator(name: "_URC_FATAL_PHASE1_ERROR", value: 3)
233!204 = !DIEnumerator(name: "_URC_NORMAL_STOP", value: 4)
234!205 = !DIEnumerator(name: "_URC_END_OF_STACK", value: 5)
235!206 = !DIEnumerator(name: "_URC_HANDLER_FOUND", value: 6)
236!207 = !DIEnumerator(name: "_URC_INSTALL_CONTEXT", value: 7)
237!208 = !DIEnumerator(name: "_URC_CONTINUE_UNWIND", value: 8)
238!209 = !DIEnumerator(name: "_URC_FAILURE", value: 9)
239!210 = !DICompositeType(tag: DW_TAG_enumeration_type, name: "Feature", scope: !211, file: !4, baseType: !7, size: 8, align: 8, flags: DIFlagEnumClass, elements: !214)
240!211 = !DINamespace(name: "arch", scope: !212)
241!212 = !DINamespace(name: "detect", scope: !213)
242!213 = !DINamespace(name: "std_detect", scope: !48)
243!214 = !{!215, !216, !217, !218, !219, !220, !221, !222, !223, !224, !225, !226, !227}
244!215 = !DIEnumerator(name: "asimd", value: 0, isUnsigned: true)
245!216 = !DIEnumerator(name: "pmull", value: 1, isUnsigned: true)
246!217 = !DIEnumerator(name: "fp", value: 2, isUnsigned: true)
247!218 = !DIEnumerator(name: "fp16", value: 3, isUnsigned: true)
248!219 = !DIEnumerator(name: "sve", value: 4, isUnsigned: true)
249!220 = !DIEnumerator(name: "crc", value: 5, isUnsigned: true)
250!221 = !DIEnumerator(name: "crypto", value: 6, isUnsigned: true)
251!222 = !DIEnumerator(name: "lse", value: 7, isUnsigned: true)
252!223 = !DIEnumerator(name: "rdm", value: 8, isUnsigned: true)
253!224 = !DIEnumerator(name: "rcpc", value: 9, isUnsigned: true)
254!225 = !DIEnumerator(name: "dotprod", value: 10, isUnsigned: true)
255!226 = !DIEnumerator(name: "tme", value: 11, isUnsigned: true)
256!227 = !DIEnumerator(name: "_last", value: 12, isUnsigned: true)
257!228 = !{}
258!229 = !{i32 2, !"Debug Info Version", i32 3}
259!230 = distinct !DISubprogram(name: "lstat", linkageName: "_ZN3std3sys4unix2fs5lstat17h30bd1f0595542181E", scope: !232, file: !231, line: 1107, type: !235, scopeLine: 1107, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, templateParams: !228, retainedNodes: !345)
260!231 = !DIFile(filename: "library/std/src/sys/unix/fs.rs", directory: "/b/s/w/ir/x/w/rust", checksumkind: CSK_MD5, checksum: "ae77e80deccbf04afd9757023ae02c00")
261!232 = !DINamespace(name: "fs", scope: !233)
262!233 = !DINamespace(name: "unix", scope: !234)
263!234 = !DINamespace(name: "sys", scope: !48)
264!235 = !DISubroutineType(types: !236)
265!236 = !{!237, !328}
266!237 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "Result<std::sys::unix::fs::FileAttr, std::io::error::Error>", scope: !32, file: !4, size: 1216, align: 64, elements: !238, identifier: "ee0ca4d5dd60641d2ca6c0def6389cfe")
267!238 = !{!239}
268!239 = distinct !DICompositeType(tag: DW_TAG_variant_part, scope: !32, file: !4, size: 1216, align: 64, elements: !240, templateParams: !278, identifier: "ee0ca4d5dd60641d2ca6c0def6389cfe_variant_part", discriminator: !327)
269!240 = !{!241, !323}
270!241 = !DIDerivedType(tag: DW_TAG_member, name: "Ok", scope: !239, file: !4, baseType: !242, size: 1216, align: 64, extraData: i64 0)
271!242 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "Ok", scope: !237, file: !4, size: 1216, align: 64, elements: !243, templateParams: !278, identifier: "ee0ca4d5dd60641d2ca6c0def6389cfe::Ok")
272!243 = !{!244}
273!244 = !DIDerivedType(tag: DW_TAG_member, name: "__0", scope: !242, file: !4, baseType: !245, size: 1152, align: 64, offset: 64)
274!245 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "FileAttr", scope: !232, file: !4, size: 1152, align: 64, elements: !246, templateParams: !228, identifier: "4de2d386e283cbd28de291794ffb960c")
275!246 = !{!247}
276!247 = !DIDerivedType(tag: DW_TAG_member, name: "stat", scope: !245, file: !4, baseType: !248, size: 1152, align: 64)
277!248 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "stat", scope: !249, file: !4, size: 1152, align: 64, elements: !252, templateParams: !228, identifier: "82d95959e3a6a4287e1e3529b4c9fa99")
278!249 = !DINamespace(name: "aarch64", scope: !250)
279!250 = !DINamespace(name: "fuchsia", scope: !251)
280!251 = !DINamespace(name: "libc", scope: null)
281!252 = !{!253, !255, !256, !257, !258, !259, !260, !261, !262, !264, !265, !267, !268, !269, !270, !271, !272, !273, !274}
282!253 = !DIDerivedType(tag: DW_TAG_member, name: "st_dev", scope: !248, file: !4, baseType: !254, size: 64, align: 64)
283!254 = !DIBasicType(name: "u64", size: 64, encoding: DW_ATE_unsigned)
284!255 = !DIDerivedType(tag: DW_TAG_member, name: "st_ino", scope: !248, file: !4, baseType: !254, size: 64, align: 64, offset: 64)
285!256 = !DIDerivedType(tag: DW_TAG_member, name: "st_mode", scope: !248, file: !4, baseType: !198, size: 32, align: 32, offset: 128)
286!257 = !DIDerivedType(tag: DW_TAG_member, name: "st_nlink", scope: !248, file: !4, baseType: !254, size: 64, align: 64, offset: 192)
287!258 = !DIDerivedType(tag: DW_TAG_member, name: "st_uid", scope: !248, file: !4, baseType: !198, size: 32, align: 32, offset: 256)
288!259 = !DIDerivedType(tag: DW_TAG_member, name: "st_gid", scope: !248, file: !4, baseType: !198, size: 32, align: 32, offset: 288)
289!260 = !DIDerivedType(tag: DW_TAG_member, name: "st_rdev", scope: !248, file: !4, baseType: !254, size: 64, align: 64, offset: 320)
290!261 = !DIDerivedType(tag: DW_TAG_member, name: "__pad0", scope: !248, file: !4, baseType: !254, size: 64, align: 64, offset: 384)
291!262 = !DIDerivedType(tag: DW_TAG_member, name: "st_size", scope: !248, file: !4, baseType: !263, size: 64, align: 64, offset: 448)
292!263 = !DIBasicType(name: "i64", size: 64, encoding: DW_ATE_signed)
293!264 = !DIDerivedType(tag: DW_TAG_member, name: "st_blksize", scope: !248, file: !4, baseType: !263, size: 64, align: 64, offset: 512)
294!265 = !DIDerivedType(tag: DW_TAG_member, name: "__pad1", scope: !248, file: !4, baseType: !266, size: 32, align: 32, offset: 576)
295!266 = !DIBasicType(name: "i32", size: 32, encoding: DW_ATE_signed)
296!267 = !DIDerivedType(tag: DW_TAG_member, name: "st_blocks", scope: !248, file: !4, baseType: !263, size: 64, align: 64, offset: 640)
297!268 = !DIDerivedType(tag: DW_TAG_member, name: "st_atime", scope: !248, file: !4, baseType: !263, size: 64, align: 64, offset: 704)
298!269 = !DIDerivedType(tag: DW_TAG_member, name: "st_atime_nsec", scope: !248, file: !4, baseType: !263, size: 64, align: 64, offset: 768)
299!270 = !DIDerivedType(tag: DW_TAG_member, name: "st_mtime", scope: !248, file: !4, baseType: !263, size: 64, align: 64, offset: 832)
300!271 = !DIDerivedType(tag: DW_TAG_member, name: "st_mtime_nsec", scope: !248, file: !4, baseType: !263, size: 64, align: 64, offset: 896)
301!272 = !DIDerivedType(tag: DW_TAG_member, name: "st_ctime", scope: !248, file: !4, baseType: !263, size: 64, align: 64, offset: 960)
302!273 = !DIDerivedType(tag: DW_TAG_member, name: "st_ctime_nsec", scope: !248, file: !4, baseType: !263, size: 64, align: 64, offset: 1024)
303!274 = !DIDerivedType(tag: DW_TAG_member, name: "__unused", scope: !248, file: !4, baseType: !275, size: 64, align: 32, offset: 1088)
304!275 = !DICompositeType(tag: DW_TAG_array_type, baseType: !198, size: 64, align: 32, elements: !276)
305!276 = !{!277}
306!277 = !DISubrange(count: 2, lowerBound: 0)
307!278 = !{!279, !280}
308!279 = !DITemplateTypeParameter(name: "T", type: !245)
309!280 = !DITemplateTypeParameter(name: "E", type: !281)
310!281 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "Error", scope: !46, file: !4, size: 128, align: 64, elements: !282, templateParams: !228, identifier: "efd560081db7c51c7f6a2954ed44e089")
311!282 = !{!283}
312!283 = !DIDerivedType(tag: DW_TAG_member, name: "repr", scope: !281, file: !4, baseType: !284, size: 128, align: 64)
313!284 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "Repr", scope: !46, file: !4, size: 128, align: 64, elements: !285, identifier: "df1a28723e4e04a13efa60934df6c3a6")
314!285 = !{!286}
315!286 = distinct !DICompositeType(tag: DW_TAG_variant_part, scope: !46, file: !4, size: 128, align: 64, elements: !287, templateParams: !228, identifier: "df1a28723e4e04a13efa60934df6c3a6_variant_part", discriminator: !322)
316!287 = !{!288, !292, !296}
317!288 = !DIDerivedType(tag: DW_TAG_member, name: "Os", scope: !286, file: !4, baseType: !289, size: 128, align: 64, extraData: i64 0)
318!289 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "Os", scope: !284, file: !4, size: 128, align: 64, elements: !290, templateParams: !228, identifier: "df1a28723e4e04a13efa60934df6c3a6::Os")
319!290 = !{!291}
320!291 = !DIDerivedType(tag: DW_TAG_member, name: "__0", scope: !289, file: !4, baseType: !266, size: 32, align: 32, offset: 32)
321!292 = !DIDerivedType(tag: DW_TAG_member, name: "Simple", scope: !286, file: !4, baseType: !293, size: 128, align: 64, extraData: i64 1)
322!293 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "Simple", scope: !284, file: !4, size: 128, align: 64, elements: !294, templateParams: !228, identifier: "df1a28723e4e04a13efa60934df6c3a6::Simple")
323!294 = !{!295}
324!295 = !DIDerivedType(tag: DW_TAG_member, name: "__0", scope: !293, file: !4, baseType: !45, size: 8, align: 8, offset: 8)
325!296 = !DIDerivedType(tag: DW_TAG_member, name: "Custom", scope: !286, file: !4, baseType: !297, size: 128, align: 64, extraData: i64 2)
326!297 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "Custom", scope: !284, file: !4, size: 128, align: 64, elements: !298, templateParams: !228, identifier: "df1a28723e4e04a13efa60934df6c3a6::Custom")
327!298 = !{!299}
328!299 = !DIDerivedType(tag: DW_TAG_member, name: "__0", scope: !297, file: !4, baseType: !300, size: 64, align: 64, offset: 64)
329!300 = !DIDerivedType(tag: DW_TAG_pointer_type, name: "Box<std::io::error::Custom>", baseType: !301, size: 64, align: 64, dwarfAddressSpace: 0)
330!301 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "Custom", scope: !46, file: !4, size: 192, align: 64, elements: !302, templateParams: !228, identifier: "91f6b80e351df08f3582a1dba78d37a4")
331!302 = !{!303, !304}
332!303 = !DIDerivedType(tag: DW_TAG_member, name: "kind", scope: !301, file: !4, baseType: !45, size: 8, align: 8, offset: 128)
333!304 = !DIDerivedType(tag: DW_TAG_member, name: "error", scope: !301, file: !4, baseType: !305, size: 128, align: 64)
334!305 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "Box<Error>", scope: !306, file: !4, size: 128, align: 64, elements: !307, templateParams: !316, identifier: "3cf62a354bd4fcd733d53a37dcca1555")
335!306 = !DINamespace(name: "error", scope: !48)
336!307 = !{!308, !310}
337!308 = !DIDerivedType(tag: DW_TAG_member, name: "pointer", scope: !305, file: !4, baseType: !309, size: 64, align: 64, flags: DIFlagArtificial)
338!309 = !DIDerivedType(tag: DW_TAG_pointer_type, name: "*mut u8", baseType: !7, size: 64, align: 64, dwarfAddressSpace: 0)
339!310 = !DIDerivedType(tag: DW_TAG_member, name: "vtable", scope: !305, file: !4, baseType: !311, size: 64, align: 64, offset: 64, flags: DIFlagArtificial)
340!311 = !DIDerivedType(tag: DW_TAG_pointer_type, name: "&[usize; 3]", baseType: !312, size: 64, align: 64, dwarfAddressSpace: 0)
341!312 = !DICompositeType(tag: DW_TAG_array_type, baseType: !313, size: 192, align: 64, elements: !314)
342!313 = !DIBasicType(name: "usize", size: 64, encoding: DW_ATE_unsigned)
343!314 = !{!315}
344!315 = !DISubrange(count: 3, lowerBound: 0)
345!316 = !{!317}
346!317 = !DITemplateTypeParameter(name: "T", type: !318)
347!318 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "Error", scope: !306, file: !4, align: 8, elements: !319, templateParams: !228, identifier: "9aa013add12fd0abf318c4ce65feabb9")
348!319 = !{!320, !321}
349!320 = !DIDerivedType(tag: DW_TAG_member, name: "pointer", scope: !318, file: !4, baseType: !309, size: 64, align: 64, flags: DIFlagArtificial)
350!321 = !DIDerivedType(tag: DW_TAG_member, name: "vtable", scope: !318, file: !4, baseType: !311, size: 64, align: 64, offset: 64, flags: DIFlagArtificial)
351!322 = !DIDerivedType(tag: DW_TAG_member, scope: !46, file: !4, baseType: !7, size: 8, align: 8, flags: DIFlagArtificial)
352!323 = !DIDerivedType(tag: DW_TAG_member, name: "Err", scope: !239, file: !4, baseType: !324, size: 1216, align: 64, extraData: i64 1)
353!324 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "Err", scope: !237, file: !4, size: 1216, align: 64, elements: !325, templateParams: !278, identifier: "ee0ca4d5dd60641d2ca6c0def6389cfe::Err")
354!325 = !{!326}
355!326 = !DIDerivedType(tag: DW_TAG_member, name: "__0", scope: !324, file: !4, baseType: !281, size: 128, align: 64, offset: 64)
356!327 = !DIDerivedType(tag: DW_TAG_member, scope: !32, file: !4, baseType: !254, size: 64, align: 64, flags: DIFlagArtificial)
357!328 = !DIDerivedType(tag: DW_TAG_pointer_type, name: "&std::path::Path", baseType: !329, size: 128, align: 64, dwarfAddressSpace: 0)
358!329 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "Path", scope: !84, file: !4, align: 8, elements: !330, templateParams: !228, identifier: "59d4ec63209a24516bd1bdae88116f75")
359!330 = !{!331}
360!331 = !DIDerivedType(tag: DW_TAG_member, name: "inner", scope: !329, file: !4, baseType: !332, align: 8)
361!332 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "OsStr", scope: !333, file: !4, align: 8, elements: !335, templateParams: !228, identifier: "12ab83c4579a80c51b2aa297e78da371")
362!333 = !DINamespace(name: "os_str", scope: !334)
363!334 = !DINamespace(name: "ffi", scope: !48)
364!335 = !{!336}
365!336 = !DIDerivedType(tag: DW_TAG_member, name: "inner", scope: !332, file: !4, baseType: !337, align: 8)
366!337 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "Slice", scope: !338, file: !4, align: 8, elements: !340, templateParams: !228, identifier: "5d97cefa8950795c2bd36fa94d0059f")
367!338 = !DINamespace(name: "os_str_bytes", scope: !339)
368!339 = !DINamespace(name: "sys_common", scope: !48)
369!340 = !{!341}
370!341 = !DIDerivedType(tag: DW_TAG_member, name: "inner", scope: !337, file: !4, baseType: !342, align: 8)
371!342 = !DICompositeType(tag: DW_TAG_array_type, baseType: !7, align: 8, elements: !343)
372!343 = !{!344}
373!344 = !DISubrange(count: -1, lowerBound: 0)
374!345 = !{!346, !347, !360, !362, !364, !366, !368}
375!346 = !DILocalVariable(name: "p", arg: 1, scope: !230, file: !231, line: 1107, type: !328)
376!347 = !DILocalVariable(name: "p", scope: !348, file: !231, line: 1108, type: !349, align: 8)
377!348 = distinct !DILexicalBlock(scope: !230, file: !231, line: 1108, column: 5)
378!349 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "CString", scope: !350, file: !4, size: 128, align: 64, elements: !351, templateParams: !228, identifier: "217f90bcda5db70412428eb4d0eb8771")
379!350 = !DINamespace(name: "c_str", scope: !334)
380!351 = !{!352}
381!352 = !DIDerivedType(tag: DW_TAG_member, name: "inner", scope: !349, file: !4, baseType: !353, size: 128, align: 64)
382!353 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "alloc::boxed::Box<[u8]>", file: !4, size: 128, align: 64, elements: !354, templateParams: !358, identifier: "402fa17fda502b3dfe8af04b4513434e")
383!354 = !{!355, !357}
384!355 = !DIDerivedType(tag: DW_TAG_member, name: "data_ptr", scope: !353, file: !4, baseType: !356, size: 64, align: 64)
385!356 = !DIDerivedType(tag: DW_TAG_pointer_type, name: "*const u8", baseType: !7, size: 64, align: 64, dwarfAddressSpace: 0)
386!357 = !DIDerivedType(tag: DW_TAG_member, name: "length", scope: !353, file: !4, baseType: !313, size: 64, align: 64, offset: 64)
387!358 = !{!359}
388!359 = !DITemplateTypeParameter(name: "T", type: !342)
389!360 = !DILocalVariable(name: "err", scope: !361, file: !231, line: 1108, type: !281, align: 8)
390!361 = distinct !DILexicalBlock(scope: !230, file: !231, line: 1108, column: 20)
391!362 = !DILocalVariable(name: "val", scope: !363, file: !231, line: 1108, type: !349, align: 8)
392!363 = distinct !DILexicalBlock(scope: !230, file: !231, line: 1108, column: 13)
393!364 = !DILocalVariable(name: "stat", scope: !365, file: !231, line: 1121, type: !248, align: 8)
394!365 = distinct !DILexicalBlock(scope: !348, file: !231, line: 1121, column: 5)
395!366 = !DILocalVariable(name: "err", scope: !367, file: !231, line: 1122, type: !281, align: 8)
396!367 = distinct !DILexicalBlock(scope: !365, file: !231, line: 1122, column: 51)
397!368 = !DILocalVariable(name: "val", scope: !369, file: !231, line: 1122, type: !266, align: 4)
398!369 = distinct !DILexicalBlock(scope: !365, file: !231, line: 1122, column: 5)
399!370 = !DILocalVariable(name: "err", scope: !371, file: !231, line: 1108, type: !281, align: 8)
400!371 = distinct !DILexicalBlock(scope: !230, file: !231, line: 1108, column: 20)
401!372 = !DILocation(line: 0, scope: !371)
402