1 ; RUN: llc -dwarf-version=5 -O0 %s -mtriple=x86_64-unknown-linux-gnu -filetype=obj -o %t
2 ; RUN: llvm-dwarfdump -v %t | FileCheck %s
4 ; Make sure we don't generate a duplicate DW_AT_rnglists_base attribute in the CU DIE
5 ; when more than one range list is emitted.
17 ; __attribute__((section(".text.foo"))) void f3() { }
19 ; Compile with clang -gwarf5 -S -emit-llvm
20 ; and change the resulting IR to move the first call to f1() to between
21 ; the second and the third call. This, along with the dbg.declare instruction
22 ; for the variable b, creates a gap in the code range for the nested lexical
23 ; scope that is b's immediate parent scope. A range list is emitted for that scope.
25 ; In addition, the placement of f3() in a different section forces a
26 ; rangelist to be emitted for the CU instead of simply using low/high pc
29 ; CHECK: .debug_info contents:
30 ; CHECK: DW_TAG_compile_unit
31 ; Make sure we have 2 CU ranges.
33 ; CHECK-NEXT: [0x{{[0-9a-f]+, 0x[0-9a-f]+}}) ".text"
34 ; CHECK-NEXT: [0x{{[0-9a-f]+, 0x[0-9a-f]+}}) ".text.foo"
35 ; We should not see any duplicate DW_AT_rnglists_base attributes.
36 ; CHECK: DW_AT_rnglists_base [DW_FORM_sec_offset] (0x0000000c)
37 ; CHECK-NOT: DW_AT_rnglists_base
39 ; Make sure we see 2 ranges in the lexical block DIE.
40 ; CHECK: DW_TAG_lexical_block
43 ; CHECK-NEXT: [0x{{[0-9a-f]+, 0x[0-9a-f]+}}) ".text"
44 ; CHECK-NEXT: [0x{{[0-9a-f]+, 0x[0-9a-f]+}}) ".text"
46 define dso_local void @_Z2f2v() !dbg !7 {
48 %b = alloca i8, align 1
49 call void @llvm.dbg.declare(metadata i8* %b, metadata !11, metadata !DIExpression()), !dbg !14
50 call void @_Z2f1v(), !dbg !15
51 ; The following call has been moved here from right after the alloca
52 call void @_Z2f1v(), !dbg !10
53 call void @_Z2f1v(), !dbg !16
57 declare dso_local void @_Z2f1v()
59 declare void @llvm.dbg.declare(metadata, metadata, metadata)
61 define dso_local void @_Z2f3v() section ".text.foo" !dbg !18 {
67 !llvm.module.flags = !{!3, !4, !5}
70 !0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !1, producer: "clang version 7.0.0 (trunk 337837)", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !2)
71 !1 = !DIFile(filename: "t3.cpp", directory: "/home/test/rangelists", checksumkind: CSK_MD5, checksum: "1ba81b564a832caa8114cd008c199048")
73 !3 = !{i32 2, !"Dwarf Version", i32 5}
74 !4 = !{i32 2, !"Debug Info Version", i32 3}
75 !5 = !{i32 1, !"wchar_size", i32 4}
76 !6 = !{!"clang version 7.0.0 (trunk 337837)"}
77 !7 = distinct !DISubprogram(name: "f2", linkageName: "_Z2f2v", scope: !1, file: !1, line: 2, type: !8, isLocal: false, isDefinition: true, scopeLine: 2, flags: DIFlagPrototyped, isOptimized: false, unit: !0, retainedNodes: !2)
78 !8 = !DISubroutineType(types: !9)
80 !10 = !DILocation(line: 3, column: 3, scope: !7)
81 !11 = !DILocalVariable(name: "b", scope: !12, file: !1, line: 5, type: !13)
82 !12 = distinct !DILexicalBlock(scope: !7, file: !1, line: 4, column: 3)
83 !13 = !DIBasicType(name: "bool", size: 8, encoding: DW_ATE_boolean)
84 !14 = !DILocation(line: 5, column: 10, scope: !12)
85 !15 = !DILocation(line: 6, column: 5, scope: !12)
86 !16 = !DILocation(line: 7, column: 5, scope: !12)
87 !17 = !DILocation(line: 9, column: 1, scope: !7)
88 !18 = distinct !DISubprogram(name: "f3", linkageName: "_Z2f3v", scope: !1, file: !1, line: 10, type: !8, isLocal: false, isDefinition: true, scopeLine: 10, flags: DIFlagPrototyped, isOptimized: false, unit: !0, retainedNodes: !2)
89 !19 = !DILocation(line: 10, column: 51, scope: !18)