1; RUN: llc -split-dwarf=Enable -O0 < %s -mtriple=x86_64-unknown-linux-gnu -filetype=obj > %t 2; RUN: llvm-dwarfdump -debug-dump=info %t | FileCheck %s 3; RUN: llvm-objdump -r %t | FileCheck --check-prefix=RELOCS %s 4 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. 8 9; A simple example of inlining generated with clang -gsplit-dwarf 10 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 15; data. 16 17; Include a template just to test template parameters are not emitted in 18; gmlt-like data. 19 20; And some varargs to make sure DW_TAG_unspecified_parameters is not emitted. 21 22; And a using declaration in a nested lexical_block... because that shouldn't 23; be emitted either. 24 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. 29 30; struct foo { 31; template<typename T> 32; static void f2(); 33; static void f3(...); 34; }; 35; 36; void f1(); 37; 38; template<typename T> 39; inline __attribute__((always_inline)) void foo::f2() { 40; f1(); 41; f1(); 42; } 43; 44; void foo::f3(...) { 45; if (true) { 46; f1(); 47; f2<int>(); 48; using ::foo; 49; } 50; } 51 52; Check that we emit the usual gmlt-like data for this file, including brief 53; descriptions of subprograms with inlined scopes. 54 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. 58 59; CHECK: DW_TAG_subprogram 60; CHECK-NEXT: DW_AT_name {{.*}} "f2<int>" 61; CHECK-NOT: DW_ 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-NOT: DW_ 74 75; RELOCS-NOT: RELOCATION RECORDS FOR [.rela.debug_ranges] 76 77; Function Attrs: uwtable 78define void @_ZN3foo2f3Ez(...) #0 align 2 !dbg !10 { 79entry: 80 call void @_Z2f1v(), !dbg !26 81 call void @_Z2f1v(), !dbg !25 82 call void @_Z2f1v(), !dbg !28 83 ret void, !dbg !29 84} 85 86declare void @_Z2f1v() #1 87 88attributes #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" } 89attributes #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" } 90 91!llvm.dbg.cu = !{!0} 92!llvm.module.flags = !{!22, !23} 93!llvm.ident = !{!24} 94 95!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) 96!1 = !DIFile(filename: "fission-inline.cpp", directory: "/tmp/dbginfo") 97!2 = !{} 98!3 = !{!4} 99!4 = !DICompositeType(tag: DW_TAG_structure_type, name: "foo", line: 1, size: 8, align: 8, file: !1, elements: !5, identifier: "_ZTS3foo") 100!5 = !{!6} 101!6 = !DISubprogram(name: "f3", linkageName: "_ZN3foo2f3Ez", line: 4, isLocal: false, isDefinition: false, flags: DIFlagPrototyped, isOptimized: false, scopeLine: 4, file: !1, scope: !4, type: !7) 102!7 = !DISubroutineType(types: !8) 103!8 = !{null, null} 104!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, variables: !2) 105!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, variables: !2) 106!12 = !DISubroutineType(types: !13) 107!13 = !{null} 108!14 = !{!15} 109!15 = !DITemplateTypeParameter(name: "T", type: !16) 110!16 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed) 111!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) 112!18 = !{!19} 113!19 = !DIImportedEntity(tag: DW_TAG_imported_declaration, line: 19, scope: !20, entity: !4) 114!20 = distinct !DILexicalBlock(line: 16, column: 13, file: !1, scope: !21) 115!21 = distinct !DILexicalBlock(line: 16, column: 7, file: !1, scope: !10) 116!22 = !{i32 2, !"Dwarf Version", i32 4} 117!23 = !{i32 2, !"Debug Info Version", i32 3} 118!24 = !{!"clang version 3.6.0 "} 119!25 = !DILocation(line: 17, column: 5, scope: !20) 120!26 = !DILocation(line: 11, column: 3, scope: !11, inlinedAt: !27) 121!27 = !DILocation(line: 18, column: 5, scope: !20) 122!28 = !DILocation(line: 12, column: 3, scope: !11, inlinedAt: !27) 123!29 = !DILocation(line: 21, column: 1, scope: !10) 124