1 ; RUN: llc -split-dwarf-file=foo.dwo -O0 < %s -mtriple=x86_64-unknown-linux-gnu -filetype=obj > %t
2 ; RUN: llvm-dwarfdump -v -debug-info %t | FileCheck %s
3 ; RUN: llvm-objdump -r %t | FileCheck --check-prefix=RELOCS %s
5 ; Test the emission of gmlt-like inlining information into the skeleton unit.
6 ; This allows inline-aware symbolication/backtracing given only the linked
7 ; executable, without needing access to the .dwos.
9 ; A simple example of inlining generated with clang -gsplit-dwarf
11 ; A member function is used to force emission of the declaration of the
12 ; function into the .dwo file, which may be shared with other CUs in the dwo ;
13 ; under fission, but should not be shared with the skeleton's CU. This also
14 ; tests the general case of context emission, which is suppressed in gmlt-like
17 ; Include a template just to test template parameters are not emitted in
20 ; And some varargs to make sure DW_TAG_unspecified_parameters is not emitted.
22 ; And a using declaration in a nested lexical_block... because that shouldn't
25 ; Minor complication: after generating the LLVM IR, it was manually edited so
26 ; that the 'f1()' call from f3 was reordered to appear between the two inlined
27 ; f1 calls from f2. This causes f2's inlined_subroutine to use DW_AT_ranges,
28 ; thus exercising range list generation/referencing which was buggy.
31 ; template<typename T>
33 ; static void f3(...);
38 ; template<typename T>
39 ; inline __attribute__((always_inline)) void foo::f2() {
52 ; Check that we emit the usual gmlt-like data for this file, including brief
53 ; descriptions of subprograms with inlined scopes.
55 ; FIXME: Once tools support indexed addresses in the skeleton CU, we should use
56 ; those (DW_FORM_addr would become DW_FORM_GNU_addr_index below) since those
57 ; addresses will already be in the address pool anyway.
59 ; CHECK: DW_TAG_subprogram
60 ; CHECK-NEXT: DW_AT_name {{.*}} "f2<int>"
62 ; CHECK: DW_TAG_subprogram
63 ; CHECK-NEXT: DW_AT_low_pc [DW_FORM_addr]
64 ; CHECK-NEXT: DW_AT_high_pc
65 ; CHECK-NEXT: DW_AT_name {{.*}} "f3"
66 ; CHECK-NOT: {{DW_|NULL}}
67 ; CHECK: DW_TAG_inlined_subroutine
68 ; CHECK-NEXT: DW_AT_abstract_origin {{.*}} "f2<int>"
69 ; CHECK-NEXT: DW_AT_ranges
70 ; CHECK-NOT: {{DW_AT|DW_TAG|NULL}}
71 ; CHECK: DW_AT_call_file
72 ; CHECK-NEXT: DW_AT_call_line {{.*}} (18)
73 ; CHECK-NEXT: DW_AT_call_column {{.*}} (0x05)
74 ; CHECK: DW_AT_call_file
75 ; CHECK-NEXT: DW_AT_call_line {{.*}} (21)
77 ; CHECK: .debug_info.dwo contents:
79 ; RELOCS-NOT: RELOCATION RECORDS FOR [.rela.debug_ranges]
81 ; Function Attrs: uwtable
82 define void @_ZN3foo2f3Ez(...) #0 align 2 !dbg !10 {
84 call void @_Z2f1v(), !dbg !26
85 call void @_Z2f1v(), !dbg !25
86 call void @_Z2f1v(), !dbg !28
87 call void @_Z2f1v(), !dbg !29
91 declare void @_Z2f1v() #1
93 attributes #0 = { uwtable "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
94 attributes #1 = { "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
97 !llvm.module.flags = !{!22, !23}
100 !0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, producer: "clang version 3.6.0 ", isOptimized: false, splitDebugFilename: "fission-inline.dwo", emissionKind: FullDebug, file: !1, enums: !2, retainedTypes: !3, globals: !2, imports: !18)
101 !1 = !DIFile(filename: "fission-inline.cpp", directory: "/tmp/dbginfo")
104 !4 = !DICompositeType(tag: DW_TAG_structure_type, name: "foo", line: 1, size: 8, align: 8, file: !1, elements: !5, identifier: "_ZTS3foo")
106 !6 = !DISubprogram(name: "f3", linkageName: "_ZN3foo2f3Ez", line: 4, isLocal: false, isDefinition: false, flags: DIFlagPrototyped, isOptimized: false, scopeLine: 4, file: !1, scope: !4, type: !7)
107 !7 = !DISubroutineType(types: !8)
109 !10 = distinct !DISubprogram(name: "f3", linkageName: "_ZN3foo2f3Ez", line: 15, isLocal: false, isDefinition: true, flags: DIFlagPrototyped, isOptimized: false, unit: !0, scopeLine: 15, file: !1, scope: !4, type: !7, declaration: !6, retainedNodes: !2)
110 !11 = distinct !DISubprogram(name: "f2<int>", linkageName: "_ZN3foo2f2IiEEvv", line: 10, isLocal: false, isDefinition: true, flags: DIFlagPrototyped, isOptimized: false, unit: !0, scopeLine: 10, file: !1, scope: !4, type: !12, templateParams: !14, declaration: !17, retainedNodes: !2)
111 !12 = !DISubroutineType(types: !13)
114 !15 = !DITemplateTypeParameter(name: "T", type: !16)
115 !16 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
116 !17 = !DISubprogram(name: "f2<int>", linkageName: "_ZN3foo2f2IiEEvv", line: 10, isLocal: false, isDefinition: false, flags: DIFlagPrototyped, isOptimized: false, scopeLine: 10, file: !1, scope: !4, type: !12, templateParams: !14)
118 !19 = !DIImportedEntity(tag: DW_TAG_imported_declaration, file: !1, line: 19, scope: !20, entity: !4)
119 !20 = distinct !DILexicalBlock(line: 16, column: 13, file: !1, scope: !21)
120 !21 = distinct !DILexicalBlock(line: 16, column: 7, file: !1, scope: !10)
121 !22 = !{i32 2, !"Dwarf Version", i32 4}
122 !23 = !{i32 2, !"Debug Info Version", i32 3}
123 !24 = !{!"clang version 3.6.0 "}
124 !25 = !DILocation(line: 17, column: 5, scope: !20)
125 !26 = !DILocation(line: 11, column: 3, scope: !11, inlinedAt: !27)
126 !27 = !DILocation(line: 18, column: 5, scope: !20)
127 !28 = !DILocation(line: 12, column: 3, scope: !11, inlinedAt: !27)
128 !29 = !DILocation(line: 12, column: 3, scope: !11, inlinedAt: !30)
129 !30 = !DILocation(line: 21, column: 0, scope: !10)