xref: /llvm-project/llvm/test/Bitcode/dbg-record-roundtrip.ll (revision 379628d446e5e6a043ead15fd29451f06fe3e100)
1;; Roundtrip tests.
2
3;; Load RemoveDIs mode in llvm-dis but write out debug intrinsics.
4; RUN: llvm-as --write-experimental-debuginfo-iterators-to-bitcode=true %s -o - \
5; RUN: | llvm-dis --load-bitcode-into-experimental-debuginfo-iterators=true --write-experimental-debuginfo=false \
6; RUN: | FileCheck %s
7
8;; Load and write RemoveDIs mode in llvm-dis.
9; RUN: llvm-as --write-experimental-debuginfo-iterators-to-bitcode=true %s -o - \
10; RUN: | llvm-dis --load-bitcode-into-experimental-debuginfo-iterators=true --write-experimental-debuginfo=true \
11; RUN: | FileCheck %s --check-prefixes=RECORDS
12
13;; Load intrinsics directly into the new format (auto-upgrade).
14; RUN: llvm-as --write-experimental-debuginfo-iterators-to-bitcode=false %s -o - \
15; RUN: | llvm-dis --load-bitcode-into-experimental-debuginfo-iterators=true --write-experimental-debuginfo=true \
16; RUN: | FileCheck %s --check-prefixes=RECORDS
17
18;; When preserving, we should output the format the bitcode was written in
19;; regardless of the value of the write flag.
20; RUN: llvm-as --write-experimental-debuginfo-iterators-to-bitcode=true %s -o - \
21; RUN: | llvm-dis --preserve-input-debuginfo-format=true --write-experimental-debuginfo=false \
22; RUN: | FileCheck %s --check-prefixes=RECORDS
23
24; RUN: llvm-as --write-experimental-debuginfo-iterators-to-bitcode=false %s -o - \
25; RUN: | llvm-dis --preserve-input-debuginfo-format=true --write-experimental-debuginfo=true \
26; RUN: | FileCheck %s
27
28;; Check that verify-uselistorder passes regardless of input format.
29; RUN: llvm-as %s --write-experimental-debuginfo-iterators-to-bitcode=true -o - | verify-uselistorder
30; RUN: verify-uselistorder %s
31
32;; Confirm we're producing RemoveDI records from various tools.
33; RUN: opt %s -o - --write-experimental-debuginfo-iterators-to-bitcode=true | llvm-bcanalyzer - | FileCheck %s --check-prefix=BITCODE
34; RUN: llvm-as %s -o - --write-experimental-debuginfo-iterators-to-bitcode=true | llvm-bcanalyzer - | FileCheck %s --check-prefix=BITCODE
35; BITCODE-DAG: DEBUG_RECORD_LABEL
36; BITCODE-DAG: DEBUG_RECORD_VALUE
37; BITCODE-DAG: DEBUG_RECORD_ASSIGN
38; BITCODE-DAG: DEBUG_RECORD_DECLARE
39
40;; Check that llvm-link doesn't explode if we give it different formats to
41;; link.
42;; NOTE: This test fails intermittently on linux if the llvm-as output is piped
43;; into llvm-link in the RUN lines below, unless the verify-uselistorder RUN
44;; lines above are removed. Write to a temporary file to avoid that weirdness.
45;; NOTE2: Unfortunately, the above only stopped it occuring on my machine.
46;; It failed again intermittently here:
47;; https://lab.llvm.org/buildbot/#/builders/245/builds/21930
48;; Allow this test to fail-over twice, until this strangeness is understood.
49; ALLOW_RETRIES: 2
50; RUN: llvm-as %s --experimental-debuginfo-iterators=true --write-experimental-debuginfo-iterators-to-bitcode=true -o %t
51; RUN: llvm-link %t %s --experimental-debuginfo-iterators=false -o /dev/null
52; RUN: llvm-as %s --experimental-debuginfo-iterators=false -o %t
53; RUN: llvm-link %t %s --experimental-debuginfo-iterators=true
54
55;; Checks inline.
56
57@g = internal dso_local global i32 0, align 4, !dbg !0
58
59define internal dso_local noundef i32 @_Z3funv(i32 %p, ptr %storage) !dbg !13 {
60entry:
61;; Dbg record at top of block, check dbg.value configurations.
62; CHECK: entry:
63; CHECK-NEXT: dbg.value(metadata i32 %p, metadata ![[e:[0-9]+]], metadata !DIExpression()), !dbg ![[dbg:[0-9]+]]
64; CHECK-NEXT: dbg.value(metadata ![[empty:[0-9]+]], metadata ![[e]], metadata !DIExpression()), !dbg ![[dbg]]
65; CHECK-NEXT: dbg.value(metadata i32 poison, metadata ![[e]], metadata !DIExpression()), !dbg ![[dbg]]
66; CHECK-NEXT: dbg.value(metadata i32 1, metadata ![[f:[0-9]+]], metadata !DIExpression()), !dbg ![[dbg]]
67; RECORDS: entry:
68; RECORDS-NEXT: dbg_value(i32 %p, ![[e:[0-9]+]], !DIExpression(), ![[dbg:[0-9]+]])
69; RECORDS-NEXT: dbg_value(![[empty:[0-9]+]], ![[e]], !DIExpression(), ![[dbg]])
70; RECORDS-NEXT: dbg_value(i32 poison, ![[e]], !DIExpression(), ![[dbg]])
71; RECORDS-NEXT: dbg_value(i32 1, ![[f:[0-9]+]], !DIExpression(), ![[dbg]])
72  tail call void @llvm.dbg.value(metadata i32 %p, metadata !32, metadata !DIExpression()), !dbg !19
73  tail call void @llvm.dbg.value(metadata !29, metadata !32, metadata !DIExpression()), !dbg !19
74  tail call void @llvm.dbg.value(metadata i32 poison, metadata !32, metadata !DIExpression()), !dbg !19
75  tail call void @llvm.dbg.value(metadata i32 1, metadata !33, metadata !DIExpression()), !dbg !19
76;; Arglist with an argument, constant, local use before def, poison.
77; CHECK-NEXT: dbg.value(metadata !DIArgList(i32 %p, i32 0, i32 %0, i32 poison), metadata ![[f]], metadata !DIExpression(DW_OP_LLVM_arg, 0, DW_OP_LLVM_arg, 1, DW_OP_plus, DW_OP_LLVM_arg, 2, DW_OP_LLVM_arg, 3, DW_OP_plus, DW_OP_minus)), !dbg ![[dbg]]
78; RECORDS-NEXT: dbg_value(!DIArgList(i32 %p, i32 0, i32 %0, i32 poison), ![[f]], !DIExpression(DW_OP_LLVM_arg, 0, DW_OP_LLVM_arg, 1, DW_OP_plus, DW_OP_LLVM_arg, 2, DW_OP_LLVM_arg, 3, DW_OP_plus, DW_OP_minus), ![[dbg]])
79  tail call void @llvm.dbg.value(metadata !DIArgList(i32 %p, i32 0, i32 %0, i32 poison), metadata !33, metadata !DIExpression(DW_OP_LLVM_arg, 0, DW_OP_LLVM_arg, 1, DW_OP_plus, DW_OP_LLVM_arg, 2, DW_OP_LLVM_arg, 3, DW_OP_plus, DW_OP_minus)), !dbg !19
80;; Check dbg.assign use before def (value, addr and ID). Check expression order too.
81; CHECK: dbg.assign(metadata i32 %0, metadata ![[i:[0-9]+]], metadata !DIExpression(DW_OP_plus_uconst, 0),
82; CHECK-SAME:       metadata ![[ID:[0-9]+]], metadata ptr %a, metadata !DIExpression(DW_OP_plus_uconst, 1)), !dbg ![[dbg]]
83; RECORDS: dbg_assign(i32 %0, ![[i:[0-9]+]], !DIExpression(DW_OP_plus_uconst, 0),
84; RECORDS-SAME:       ![[ID:[0-9]+]], ptr %a, !DIExpression(DW_OP_plus_uconst, 1), ![[dbg]])
85  tail call void @llvm.dbg.assign(metadata i32 %0, metadata !36, metadata !DIExpression(DW_OP_plus_uconst, 0), metadata !37, metadata ptr %a, metadata !DIExpression(DW_OP_plus_uconst, 1)), !dbg !19
86  %a = alloca i32, align 4, !DIAssignID !37
87; CHECK: %a = alloca i32, align 4, !DIAssignID ![[ID]]
88;; Check dbg.declare configurations.
89; CHECK-NEXT: dbg.declare(metadata ptr %a, metadata ![[a:[0-9]+]], metadata !DIExpression()), !dbg ![[dbg]]
90; CHECK-NEXT: dbg.declare(metadata ![[empty:[0-9]+]], metadata ![[b:[0-9]+]], metadata !DIExpression()), !dbg ![[dbg]]
91; CHECK-NEXT: dbg.declare(metadata ptr poison, metadata ![[c:[0-9]+]], metadata !DIExpression()), !dbg ![[dbg]]
92; CHECK-NEXT: dbg.declare(metadata ptr null, metadata ![[d:[0-9]+]], metadata !DIExpression()), !dbg ![[dbg]]
93; CHECK-NEXT: dbg.declare(metadata ptr @g, metadata ![[h:[0-9]+]], metadata !DIExpression()), !dbg ![[dbg]]
94; RECORDS: %a = alloca i32, align 4, !DIAssignID ![[ID]]
95;; Check dbg.declare configurations.
96; RECORDS-NEXT: dbg_declare(ptr %a, ![[a:[0-9]+]], !DIExpression(), ![[dbg]])
97; RECORDS-NEXT: dbg_declare(![[empty:[0-9]+]], ![[b:[0-9]+]], !DIExpression(), ![[dbg]])
98; RECORDS-NEXT: dbg_declare(ptr poison, ![[c:[0-9]+]], !DIExpression(), ![[dbg]])
99; RECORDS-NEXT: dbg_declare(ptr null, ![[d:[0-9]+]], !DIExpression(), ![[dbg]])
100; RECORDS-NEXT: dbg_declare(ptr @g, ![[h:[0-9]+]], !DIExpression(), ![[dbg]])
101  tail call void @llvm.dbg.declare(metadata ptr %a, metadata !17, metadata !DIExpression()), !dbg !19
102  tail call void @llvm.dbg.declare(metadata !29, metadata !28, metadata !DIExpression()), !dbg !19
103  tail call void @llvm.dbg.declare(metadata ptr poison, metadata !30, metadata !DIExpression()), !dbg !19
104  tail call void @llvm.dbg.declare(metadata ptr null, metadata !31, metadata !DIExpression()), !dbg !19
105  tail call void @llvm.dbg.declare(metadata ptr @g, metadata !35, metadata !DIExpression()), !dbg !19
106;; Argument value dbg.declare.
107; CHECK: dbg.declare(metadata ptr %storage, metadata ![[g:[0-9]+]], metadata !DIExpression()), !dbg ![[dbg]]
108; RECORDS: dbg_declare(ptr %storage, ![[g:[0-9]+]], !DIExpression(), ![[dbg]])
109  tail call void @llvm.dbg.declare(metadata ptr %storage, metadata !34, metadata !DIExpression()), !dbg !19
110;; Use before def dbg.value.
111; CHECK: dbg.value(metadata i32 %0, metadata ![[e]], metadata !DIExpression()), !dbg ![[dbg]]
112; RECORDS: dbg_value(i32 %0, ![[e]], !DIExpression(), ![[dbg]])
113  tail call void @llvm.dbg.value(metadata i32 %0, metadata !32, metadata !DIExpression()), !dbg !19
114  %0 = load i32, ptr @g, align 4, !dbg !20
115;; Non-argument local value dbg.value.
116; CHECK: dbg.value(metadata i32 %0, metadata ![[e]], metadata !DIExpression()), !dbg ![[dbg]]
117; RECORDS: dbg_value(i32 %0, ![[e]], !DIExpression(), ![[dbg]])
118  tail call void @llvm.dbg.value(metadata i32 %0, metadata !32, metadata !DIExpression()), !dbg !19
119  store i32 %0, ptr %a, align 4, !dbg !19
120  %1 = load i32, ptr %a, align 4, !dbg !25
121; CHECK: dbg.label(metadata ![[label:[0-9]+]]), !dbg ![[dbg]]
122; RECORDS: dbg_label(![[label:[0-9]+]], ![[dbg]])
123  tail call void @llvm.dbg.label(metadata !38), !dbg !19
124  ret i32 %1, !dbg !27
125}
126
127; CHECK-DAG: ![[a]] = !DILocalVariable(name: "a",
128; CHECK-DAG: ![[b]] = !DILocalVariable(name: "b",
129; CHECK-DAG: ![[c]] = !DILocalVariable(name: "c",
130; CHECK-DAG: ![[d]] = !DILocalVariable(name: "d",
131; CHECK-DAG: ![[e]] = !DILocalVariable(name: "e",
132; CHECK-DAG: ![[f]] = !DILocalVariable(name: "f",
133; CHECK-DAG: ![[g]] = !DILocalVariable(name: "g",
134; CHECK-DAG: ![[h]] = !DILocalVariable(name: "h",
135; CHECK-DAG: ![[i]] = !DILocalVariable(name: "i",
136; CHECK-DAG: ![[empty]] = !{}
137; CHECK-DAG: ![[label]] = !DILabel
138
139declare void @llvm.dbg.declare(metadata, metadata, metadata)
140declare void @llvm.dbg.value(metadata, metadata, metadata)
141declare void @llvm.dbg.assign(metadata, metadata, metadata, metadata, metadata, metadata)
142declare void @llvm.dbg.label(metadata)
143
144!llvm.dbg.cu = !{!2}
145!llvm.module.flags = !{!6, !7, !8, !9, !10, !11}
146!llvm.ident = !{!12}
147
148!0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression())
149!1 = distinct !DIGlobalVariable(name: "g", scope: !2, file: !3, line: 1, type: !5, isLocal: false, isDefinition: true)
150!2 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus_14, file: !3, producer: "clang version 19.0.0", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, globals: !4, splitDebugInlining: false, nameTableKind: None)
151!3 = !DIFile(filename: "test.cpp", directory: "/")
152!4 = !{!0}
153!5 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
154!6 = !{i32 7, !"Dwarf Version", i32 5}
155!7 = !{i32 2, !"Debug Info Version", i32 3}
156!8 = !{i32 1, !"wchar_size", i32 4}
157!9 = !{i32 8, !"PIC Level", i32 2}
158!10 = !{i32 7, !"PIE Level", i32 2}
159!11 = !{i32 7, !"uwtable", i32 2}
160!12 = !{!"clang version 19.0.0"}
161!13 = distinct !DISubprogram(name: "fun", linkageName: "_Z3funv", scope: !3, file: !3, line: 2, type: !14, scopeLine: 2, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !2, retainedNodes: !16)
162!14 = !DISubroutineType(types: !15)
163!15 = !{!5}
164!16 = !{!17}
165!17 = !DILocalVariable(name: "a", scope: !13, file: !3, line: 3, type: !5)
166!18 = !DILocation(line: 3, column: 3, scope: !13)
167!19 = !DILocation(line: 3, column: 7, scope: !13)
168!20 = !DILocation(line: 3, column: 11, scope: !13)
169!25 = !DILocation(line: 4, column: 12, scope: !13)
170!26 = !DILocation(line: 5, column: 1, scope: !13)
171!27 = !DILocation(line: 4, column: 5, scope: !13)
172!28 = !DILocalVariable(name: "b", scope: !13, file: !3, line: 3, type: !5)
173!29 = !{}
174!30 = !DILocalVariable(name: "c", scope: !13, file: !3, line: 3, type: !5)
175!31 = !DILocalVariable(name: "d", scope: !13, file: !3, line: 3, type: !5)
176!32 = !DILocalVariable(name: "e", scope: !13, file: !3, line: 3, type: !5)
177!33 = !DILocalVariable(name: "f", scope: !13, file: !3, line: 3, type: !5)
178!34 = !DILocalVariable(name: "g", scope: !13, file: !3, line: 3, type: !5)
179!35 = !DILocalVariable(name: "h", scope: !13, file: !3, line: 3, type: !5)
180!36 = !DILocalVariable(name: "i", scope: !13, file: !3, line: 3, type: !5)
181!37 = distinct !DIAssignID()
182!38 = !DILabel(scope: !13, name: "label", file: !3, line: 1)
183