File: global_rust.ll

package info (click to toggle)
llvm-toolchain-16 1%3A16.0.6-15~deb12u1
  • links: PTS, VCS
  • area: main
  • in suites: bookworm
  • size: 1,634,792 kB
  • sloc: cpp: 6,179,261; ansic: 1,216,205; asm: 741,319; python: 196,614; objc: 75,325; f90: 49,640; lisp: 32,396; pascal: 12,286; sh: 9,394; perl: 7,442; ml: 5,494; awk: 3,523; makefile: 2,723; javascript: 1,206; xml: 886; fortran: 581; cs: 573
file content (167 lines) | stat: -rw-r--r-- 9,919 bytes parent folder | download | duplicates (5)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
; RUN: llc < %s -filetype=obj | llvm-readobj - --codeview | FileCheck %s
;
; This test verifies global variables with no scope, as rust generates them for vtables, are handled correctly.
;
; -- global_rust.rs ----------------------------------------------------
; #![crate_type = "lib"]
; pub trait Foo {
;     fn foo(&self) {}
; }
;
; impl Foo for u32 {}
;
; pub fn foo(_: &dyn Foo) {}
;
; pub fn bar() {
;     foo(&42);
; }
; -----------------------------------------------------------------------------
;
; $ rustc -emit=llvm-ir --target=x86_64-pc-windows-msvc -C debuginfo=2 global_rust.rs
;

; CHECK: CodeViewDebugInfo [
; CHECK:   Section: .debug$S (6)

; CHECK:   Subsection [
; CHECK:     SubSectionType: Symbols (0xF1)
; CHECK:     SubSectionSize: 0x34
; CHECK:     DataSym {
; CHECK:       Kind: S_LDATA32 (0x110C)
; CHECK:       DataOffset: .rdata+0x8
; CHECK:       Type: impl$<u32, global_rust::Foo>::vtable_type$ (0x101D)
; CHECK:       DisplayName: impl$<u32, global_rust::Foo>::vtable$
; CHECK:       LinkageName: .rdata
; CHECK:     }
; CHECK:   ]

; ModuleID = 'global_rust.5984dd87-cgu.0'
source_filename = "global_rust.5984dd87-cgu.0"
target datalayout = "e-m:w-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
target triple = "x86_64-pc-windows-msvc"

@alloc7 = private unnamed_addr constant <{ [4 x i8] }> <{ [4 x i8] c"*\00\00\00" }>, align 4
@vtable.0 = private unnamed_addr constant <{ i8*, [16 x i8], i8* }> <{ i8* bitcast (void (i32*)* @"_ZN4core3ptr24drop_in_place$LT$u32$GT$17h5aa897c8344c34eaE" to i8*), [16 x i8] c"\04\00\00\00\00\00\00\00\04\00\00\00\00\00\00\00", i8* bitcast (void (i32*)* @_ZN11global_rust3Foo3foo17h17696ada84e467feE to i8*) }>, align 8, !dbg !0

; core::ptr::drop_in_place<u32>
; Function Attrs: inlinehint uwtable
define internal void @"_ZN4core3ptr24drop_in_place$LT$u32$GT$17h5aa897c8344c34eaE"(i32* %_1) unnamed_addr #0 !dbg !22 {
start:
  %_1.dbg.spill = alloca i32*, align 8
  store i32* %_1, i32** %_1.dbg.spill, align 8
  call void @llvm.dbg.declare(metadata i32** %_1.dbg.spill, metadata !30, metadata !DIExpression()), !dbg !33
  ret void, !dbg !33
}

; global_rust::Foo::foo
; Function Attrs: uwtable
define void @_ZN11global_rust3Foo3foo17h17696ada84e467feE(i32* align 4 %self) unnamed_addr #1 !dbg !34 {
start:
  %self.dbg.spill = alloca i32*, align 8
  store i32* %self, i32** %self.dbg.spill, align 8
  call void @llvm.dbg.declare(metadata i32** %self.dbg.spill, metadata !42, metadata !DIExpression()), !dbg !45
  ret void, !dbg !45
}

; global_rust::foo
; Function Attrs: uwtable
define void @_ZN11global_rust3foo17hbb4da99a7bb855e3E({}* align 1 %_1.0, [3 x i64]* align 8 %_1.1) unnamed_addr #1 !dbg !46 {
start:
  %_1.dbg.spill = alloca { {}*, [3 x i64]* }, align 8
  %0 = getelementptr inbounds { {}*, [3 x i64]* }, { {}*, [3 x i64]* }* %_1.dbg.spill, i32 0, i32 0
  store {}* %_1.0, {}** %0, align 8
  %1 = getelementptr inbounds { {}*, [3 x i64]* }, { {}*, [3 x i64]* }* %_1.dbg.spill, i32 0, i32 1
  store [3 x i64]* %_1.1, [3 x i64]** %1, align 8
  call void @llvm.dbg.declare(metadata { {}*, [3 x i64]* }* %_1.dbg.spill, metadata !60, metadata !DIExpression()), !dbg !61
  ret void, !dbg !61
}

; global_rust::bar
; Function Attrs: uwtable
define void @_ZN11global_rust3bar17h9ea8de32fc3f1360E() unnamed_addr #1 !dbg !62 {
start:
; call global_rust::foo
  call void @_ZN11global_rust3foo17hbb4da99a7bb855e3E({}* align 1 bitcast (<{ [4 x i8] }>* @alloc7 to {}*), [3 x i64]* align 8 bitcast (<{ i8*, [16 x i8], i8* }>* @vtable.0 to [3 x i64]*)), !dbg !65
  br label %bb1, !dbg !65

bb1:                                              ; preds = %start
  ret void, !dbg !66
}

; Function Attrs: nofree nosync nounwind readnone speculatable willreturn
declare void @llvm.dbg.declare(metadata, metadata, metadata) #2

attributes #0 = { inlinehint uwtable "target-cpu"="x86-64" }
attributes #1 = { uwtable "target-cpu"="x86-64" }
attributes #2 = { nofree nosync nounwind readnone speculatable willreturn }

!llvm.module.flags = !{!16, !17, !18}
!llvm.dbg.cu = !{!19}

!0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression())
!1 = distinct !DIGlobalVariable(name: "impl$<u32, global_rust::Foo>::vtable$", scope: null, file: !2, type: !3, isLocal: true, isDefinition: true)
!2 = !DIFile(filename: "<unknown>", directory: "")
!3 = !DICompositeType(tag: DW_TAG_structure_type, name: "impl$<u32, global_rust::Foo>::vtable_type$", file: !2, size: 256, align: 64, flags: DIFlagArtificial, elements: !4, vtableHolder: !14, templateParams: !8, identifier: "4a384a40e448d9d82ef8cb395527d231")
!4 = !{!5, !9, !12, !13}
!5 = !DIDerivedType(tag: DW_TAG_member, name: "drop_in_place", scope: !3, file: !2, baseType: !6, size: 64, align: 64)
!6 = !DIDerivedType(tag: DW_TAG_pointer_type, name: "ptr_const$<tuple$<> >", baseType: !7, size: 64, align: 64, dwarfAddressSpace: 0)
!7 = !DICompositeType(tag: DW_TAG_structure_type, name: "tuple$<>", file: !2, align: 8, elements: !8, identifier: "65e33f3994015bcf158992dbe0323c0")
!8 = !{}
!9 = !DIDerivedType(tag: DW_TAG_member, name: "size", scope: !3, file: !2, baseType: !10, size: 64, align: 64, offset: 64)
!10 = !DIDerivedType(tag: DW_TAG_typedef, name: "usize", file: !2, baseType: !11)
!11 = !DIBasicType(name: "size_t", size: 64, encoding: DW_ATE_unsigned)
!12 = !DIDerivedType(tag: DW_TAG_member, name: "align", scope: !3, file: !2, baseType: !10, size: 64, align: 64, offset: 128)
!13 = !DIDerivedType(tag: DW_TAG_member, name: "__method3", scope: !3, file: !2, baseType: !6, size: 64, align: 64, offset: 192)
!14 = !DIDerivedType(tag: DW_TAG_typedef, name: "u32", file: !2, baseType: !15)
!15 = !DIBasicType(name: "unsigned __int32", size: 32, encoding: DW_ATE_unsigned)
!16 = !{i32 7, !"PIC Level", i32 2}
!17 = !{i32 2, !"CodeView", i32 1}
!18 = !{i32 2, !"Debug Info Version", i32 3}
!19 = distinct !DICompileUnit(language: DW_LANG_Rust, file: !20, producer: "clang LLVM (rustc version 1.64.0 (a55dd71d5 2022-09-19))", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, globals: !21)
!20 = !DIFile(filename: "global_rust.rs/@/global_rust.5984dd87-cgu.0", directory: "/tmp/llvm2")
!21 = !{!0}
!22 = distinct !DISubprogram(name: "drop_in_place<u32>", linkageName: "_ZN4core3ptr24drop_in_place$LT$u32$GT$17h5aa897c8344c34eaE", scope: !24, file: !23, line: 487, type: !26, scopeLine: 487, flags: DIFlagPrototyped, spFlags: DISPFlagLocalToUnit | DISPFlagDefinition, unit: !19, templateParams: !31, retainedNodes: !29)
!23 = !DIFile(filename: "/rustc/a55dd71d5fb0ec5a6a3a9e8c27b2127ba491ce52\\library\\core\\src\\ptr\\mod.rs", directory: "", checksumkind: CSK_SHA1, checksum: "09826e1d72e15b98151545882632f685c97dc29f")
!24 = !DINamespace(name: "ptr", scope: !25)
!25 = !DINamespace(name: "core", scope: null)
!26 = !DISubroutineType(types: !27)
!27 = !{null, !28}
!28 = !DIDerivedType(tag: DW_TAG_pointer_type, name: "ptr_mut$<u32>", baseType: !14, size: 64, align: 64, dwarfAddressSpace: 0)
!29 = !{!30}
!30 = !DILocalVariable(arg: 1, scope: !22, file: !23, line: 487, type: !28)
!31 = !{!32}
!32 = !DITemplateTypeParameter(name: "T", type: !14)
!33 = !DILocation(line: 487, scope: !22)
!34 = distinct !DISubprogram(name: "foo<u32>", linkageName: "_ZN11global_rust3Foo3foo17h17696ada84e467feE", scope: !36, file: !35, line: 3, type: !38, scopeLine: 3, flags: DIFlagPrototyped, spFlags: DISPFlagLocalToUnit | DISPFlagDefinition, unit: !19, templateParams: !43, retainedNodes: !41)
!35 = !DIFile(filename: "global_rust.rs", directory: "/tmp/llvm2", checksumkind: CSK_SHA1, checksum: "d28353083c5fcd457fffa5827b0372c4a843c302")
!36 = !DINamespace(name: "Foo", scope: !37)
!37 = !DINamespace(name: "global_rust", scope: null)
!38 = !DISubroutineType(types: !39)
!39 = !{null, !40}
!40 = !DIDerivedType(tag: DW_TAG_pointer_type, name: "ref$<u32>", baseType: !14, size: 64, align: 64, dwarfAddressSpace: 0)
!41 = !{!42}
!42 = !DILocalVariable(name: "self", arg: 1, scope: !34, file: !35, line: 3, type: !40)
!43 = !{!44}
!44 = !DITemplateTypeParameter(name: "Self", type: !14)
!45 = !DILocation(line: 3, scope: !34)
!46 = distinct !DISubprogram(name: "foo", linkageName: "_ZN11global_rust3foo17hbb4da99a7bb855e3E", scope: !37, file: !35, line: 8, type: !47, scopeLine: 8, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition, unit: !19, templateParams: !8, retainedNodes: !59)
!47 = !DISubroutineType(types: !48)
!48 = !{null, !49}
!49 = !DICompositeType(tag: DW_TAG_structure_type, name: "ref$<dyn$<global_rust::Foo> >", file: !2, size: 128, align: 64, elements: !50, templateParams: !8, identifier: "2c39c7f196ba93e4e4fbfefe6e460dfb")
!50 = !{!51, !54}
!51 = !DIDerivedType(tag: DW_TAG_member, name: "pointer", scope: !49, file: !2, baseType: !52, size: 64, align: 64)
!52 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !53, size: 64, align: 64, dwarfAddressSpace: 0)
!53 = !DICompositeType(tag: DW_TAG_structure_type, name: "dyn$<global_rust::Foo>", file: !2, align: 8, elements: !8, identifier: "dc5af67081d01f4b3cf3420f9b3ec7fa")
!54 = !DIDerivedType(tag: DW_TAG_member, name: "vtable", scope: !49, file: !2, baseType: !55, size: 64, align: 64, offset: 64)
!55 = !DIDerivedType(tag: DW_TAG_pointer_type, name: "ref$<array$<usize,3> >", baseType: !56, size: 64, align: 64, dwarfAddressSpace: 0)
!56 = !DICompositeType(tag: DW_TAG_array_type, baseType: !10, size: 192, align: 64, elements: !57)
!57 = !{!58}
!58 = !DISubrange(count: 3, lowerBound: 0)
!59 = !{!60}
!60 = !DILocalVariable(arg: 1, scope: !46, file: !35, line: 8, type: !49)
!61 = !DILocation(line: 8, scope: !46)
!62 = distinct !DISubprogram(name: "bar", linkageName: "_ZN11global_rust3bar17h9ea8de32fc3f1360E", scope: !37, file: !35, line: 10, type: !63, scopeLine: 10, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition, unit: !19, templateParams: !8, retainedNodes: !8)
!63 = !DISubroutineType(types: !64)
!64 = !{null}
!65 = !DILocation(line: 11, scope: !62)
!66 = !DILocation(line: 12, scope: !62)