File: dwarf-basics-v5.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 (154 lines) | stat: -rw-r--r-- 6,449 bytes parent folder | download | duplicates (6)
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
; RUN: llc -generate-arange-section -minimize-addr-in-v5=Ranges --filetype=obj -o %t < %s
; RUN: llvm-dwarfdump --debug-info -debug-aranges -debug-addr %t | FileCheck %s
; RUN: llvm-dwarfdump --verify %t

; This file was based on output of
;
;   clang -target msp430 -S -emit-llvm -gdwarf-5 -Os dwarf-basics-v5.c
;
; for the following dwarf-basics-v5.c
;
;   struct X {
;     void *a;
;   };
;
;   int f(long y, struct X *p)
;   {
;     return 42;
;   }
;

; CHECK: file format elf32-msp430

; CHECK: .debug_info contents:
; CHECK: Compile Unit: length = 0x{{.*}}, format = DWARF32, version = 0x0005, unit_type = DW_UT_compile, abbr_offset = 0x0000, addr_size = 0x02 (next unit at 0x{{.*}})

; CHECK: DW_TAG_compile_unit
; CHECK:   DW_AT_producer    ("clang version 14.0.0 (git@...)")
; CHECK:   DW_AT_language    (DW_LANG_C99)
; CHECK:   DW_AT_name        ("dwarf-basics-v5.c")
; CHECK:   DW_AT_str_offsets_base    (0x00000008)
; CHECK:   DW_AT_stmt_list   (0x{{.*}})
; CHECK:   DW_AT_comp_dir    ("/tmp")
; CHECK:   DW_AT_low_pc      (0x{{.*}})
; CHECK:   DW_AT_high_pc     (0x{{.*}})
; CHECK:   DW_AT_addr_base   (0x00000008)
; CHECK:   DW_AT_loclists_base       (0x0000000c)

; CHECK:   DW_TAG_subprogram
; CHECK:     DW_AT_low_pc    (0x{{.*}})
; CHECK:     DW_AT_high_pc   (0x{{.*}})
; CHECK:     DW_AT_frame_base        (DW_OP_reg1 SPB)
; CHECK:     DW_AT_call_all_calls    (true)
; CHECK:     DW_AT_name      ("f")
; CHECK:     DW_AT_decl_file ("/tmp{{[/\\]}}dwarf-basics-v5.c")
; CHECK:     DW_AT_decl_line (5)
; CHECK:     DW_AT_prototyped (true)
; CHECK:     DW_AT_type      (0x{{.*}} "int")
; CHECK:     DW_AT_external  (true)

; CHECK:       DW_TAG_formal_parameter
; CHECK:         DW_AT_location        (indexed (0x0) loclist = 0x{{.*}}:
; CHECK:            [0x0000, 0x0004): DW_OP_reg12 R12B)
; CHECK:         DW_AT_name    ("y")
; CHECK:         DW_AT_decl_file       ("/tmp{{[/\\]}}dwarf-basics-v5.c")
; CHECK:         DW_AT_decl_line       (5)
; CHECK:         DW_AT_type    (0x{{.*}} "long")

; CHECK:       DW_TAG_formal_parameter
; CHECK:         DW_AT_location        (DW_OP_reg14 R14B)
; CHECK:         DW_AT_name    ("p")
; CHECK:         DW_AT_decl_file       ("/tmp{{[/\\]}}dwarf-basics-v5.c")
; CHECK:         DW_AT_decl_line       (5)
; CHECK:         DW_AT_type    (0x{{.*}} "X *")

; CHECK:       NULL

; CHECK:     DW_TAG_base_type
; CHECK:       DW_AT_name      ("int")
; CHECK:       DW_AT_encoding  (DW_ATE_signed)
; CHECK:       DW_AT_byte_size (0x02)

; CHECK:     DW_TAG_base_type
; CHECK:       DW_AT_name      ("long")
; CHECK:       DW_AT_encoding  (DW_ATE_signed)
; CHECK:       DW_AT_byte_size (0x04)

; CHECK:     DW_TAG_pointer_type
; CHECK:       DW_AT_type      (0x{{.*}} "X")

; CHECK:     DW_TAG_structure_type
; CHECK:       DW_AT_name      ("X")
; CHECK:       DW_AT_byte_size (0x02)
; CHECK:       DW_AT_decl_file ("/tmp{{[/\\]}}dwarf-basics-v5.c")
; CHECK:       DW_AT_decl_line (1)

; CHECK:       DW_TAG_member
; CHECK:         DW_AT_name    ("a")
; CHECK:         DW_AT_type    (0x{{.*}} "void *")
; CHECK:         DW_AT_decl_file       ("/tmp{{[/\\]}}dwarf-basics-v5.c")
; CHECK:         DW_AT_decl_line       (2)
; CHECK:         DW_AT_data_member_location    (0x00)

; CHECK:       NULL

; CHECK:     DW_TAG_pointer_type

; CHECK:     NULL

; CHECK:      .debug_aranges contents:
; CHECK-NEXT: Address Range Header: length = 0x{{.*}}, format = DWARF32, version = 0x0002, cu_offset = 0x00000000, addr_size = 0x02, seg_size = 0x00
; CHECK-NEXT: [0x0000, 0x0006)

; CHECK:      .debug_addr contents:
; CHECK-NEXT: Address table header: length = 0x{{.*}}, format = DWARF32, version = 0x0005, addr_size = 0x02, seg_size = 0x00
; CHECK-NEXT: Addrs: [
; CHECK-NEXT: 0x0000
; CHECK-NEXT: ]

; ModuleID = 'dwarf-basics-v5.c'
source_filename = "dwarf-basics-v5.c"
target datalayout = "e-m:e-p:16:16-i32:16-i64:16-f32:16-f64:16-a:8-n8:16-S16"
target triple = "msp430"

%struct.X = type { i8* }

; Function Attrs: mustprogress nofree norecurse nosync nounwind optsize readnone willreturn
define dso_local i16 @f(i32 noundef %y, %struct.X* nocapture noundef readnone %p) local_unnamed_addr #0 !dbg !6 {
entry:
  call void @llvm.dbg.value(metadata i32 %y, metadata !17, metadata !DIExpression()), !dbg !19
  call void @llvm.dbg.value(metadata %struct.X* %p, metadata !18, metadata !DIExpression()), !dbg !19
  ret i16 42, !dbg !20
}

; Function Attrs: nofree nosync nounwind readnone speculatable willreturn
declare void @llvm.dbg.value(metadata, metadata, metadata) #1

attributes #0 = { mustprogress nofree norecurse nosync nounwind optsize readnone willreturn "frame-pointer"="none" "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" }
attributes #1 = { nofree nosync nounwind readnone speculatable willreturn }

!llvm.dbg.cu = !{!0}
!llvm.module.flags = !{!2, !3, !4}
!llvm.ident = !{!5}

!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 14.0.0 (git@...)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, splitDebugInlining: false, nameTableKind: None)
!1 = !DIFile(filename: "dwarf-basics-v5.c", directory: "/tmp", checksumkind: CSK_MD5, checksum: "ead340d457001e2ce340630cfa3a9cb8")
!2 = !{i32 7, !"Dwarf Version", i32 5}
!3 = !{i32 2, !"Debug Info Version", i32 3}
!4 = !{i32 1, !"wchar_size", i32 2}
!5 = !{!"clang version 14.0.0 (git@...)"}
!6 = distinct !DISubprogram(name: "f", scope: !1, file: !1, line: 5, type: !7, scopeLine: 6, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !16)
!7 = !DISubroutineType(types: !8)
!8 = !{!9, !10, !11}
!9 = !DIBasicType(name: "int", size: 16, encoding: DW_ATE_signed)
!10 = !DIBasicType(name: "long", size: 32, encoding: DW_ATE_signed)
!11 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !12, size: 16)
!12 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "X", file: !1, line: 1, size: 16, elements: !13)
!13 = !{!14}
!14 = !DIDerivedType(tag: DW_TAG_member, name: "a", scope: !12, file: !1, line: 2, baseType: !15, size: 16)
!15 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: null, size: 16)
!16 = !{!17, !18}
!17 = !DILocalVariable(name: "y", arg: 1, scope: !6, file: !1, line: 5, type: !10)
!18 = !DILocalVariable(name: "p", arg: 2, scope: !6, file: !1, line: 5, type: !11)
!19 = !DILocation(line: 0, scope: !6)
!20 = !DILocation(line: 7, column: 3, scope: !6)