1; REQUIRES: object-emission 2 3; Generated from the following source compiled with clang++ -gmlt: 4; void f1() {} 5; void __attribute__((section("__TEXT,__bar"))) f2() {} 6; void __attribute__((always_inline)) f3() { f1(); } 7; void f4() { f3(); } 8 9; Check that 10; * -gmlt includes no DW_TAG_subprograms for subprograms without inlined 11; subroutines. 12; * yet still produces DW_AT_ranges and a range list in debug_ranges that 13; describes those subprograms 14 15; CHECK: DW_TAG_compile_unit 16; CHECK: DW_AT_ranges [DW_FORM_sec_offset] (0x00000000 17; CHECK-NOT: {{DW_TAG|NULL}} 18 19; Omitting the subprograms without inlined subroutines is not possible 20; currently on Darwin as dsymutil will drop the whole CU if it has no subprograms 21; (which happens with this optimization if there are no inlined subroutines). 22 23; DARWIN: DW_TAG_subprogram 24; DARWIN-NOT: DW_TAG 25; DARWIN: DW_AT_name {{.*}} "f1" 26; DARWIN-NOT: {{DW_TAG|NULL}} 27; DARWIN: DW_TAG_subprogram 28; DARWIN-NOT: DW_TAG 29; DARWIN: DW_AT_name {{.*}} "f2" 30; DARWIN-NOT: {{DW_TAG|NULL}} 31; DARWIN: DW_TAG_subprogram 32; DARWIN-NOT: DW_TAG 33; Can't check the abstract_origin value across the DARWIN/CHECK checking and 34; ordering, so don't bother - just trust me, it refers to f3 down there. 35; DARWIN: DW_AT_abstract_origin 36; DARWIN-NOT: {{DW_TAG|NULL}} 37 38 39; FIXME: Emitting separate abstract definitions is inefficient when we could 40; just attach the DW_AT_name to the inlined_subroutine directly. Except that 41; would produce many string relocations. Implement string indexing in the 42; skeleton CU to address the relocation problem, then remove abstract 43; definitions from -gmlt here. 44 45; CHECK: DW_TAG_subprogram 46; CHECK-NEXT: DW_AT_name {{.*}} "f3" 47 48; FIXME: We don't really need DW_AT_inline, consumers can ignore this due to 49; the absence of high_pc/low_pc/ranges and know that they just need it for 50; retrieving the name of a concrete inlined instance 51 52; CHECK-NOT: {{DW_TAG|DW_AT|NULL}} 53 54; Check that we only provide the minimal attributes on a subprogram to save space. 55; CHECK: DW_TAG_subprogram 56; CHECK-NEXT: DW_AT_low_pc 57; CHECK-NEXT: DW_AT_high_pc 58; CHECK-NEXT: DW_AT_name 59; CHECK-NOT: {{DW_TAG|DW_AT}} 60; CHECK: DW_TAG_inlined_subroutine 61 62; As mentioned above - replace DW_AT_abstract_origin with DW_AT_name to save 63; space once we have support for string indexing in non-dwo sections 64 65; CHECK-NEXT: DW_AT_abstract_origin {{.*}} "f3" 66; CHECK-NEXT: DW_AT_low_pc 67; CHECK-NEXT: DW_AT_high_pc 68; CHECK-NEXT: DW_AT_call_file 69; CHECK-NEXT: DW_AT_call_line 70 71; Make sure we don't have any other subprograms here (subprograms with no 72; inlined subroutines are omitted by design to save space) 73 74; CHECK-NOT: {{DW_TAG|DW_AT}} 75; CHECK: NULL 76; CHECK-NOT: {{DW_TAG|DW_AT}} 77; CHECK: NULL 78 79 80; CHECK: .debug_ranges contents: 81 82; ... some addresses (depends on platform (such as platforms with function 83; reordering in the linker), and looks wonky on platforms with zero values 84; written in relocation places (dumper needs to be fixed to read the 85; relocations rather than interpret that as the end of a range list)) 86 87; CHECK: 00000000 <End of list> 88 89 90; Check that we don't emit any pubnames or pubtypes under -gmlt 91; CHECK: .debug_pubnames contents: 92; CHECK-NOT: Offset 93 94; CHECK: .debug_pubtypes contents: 95; CHECK-NOT: Offset 96 97; CHECK: .apple{{.*}} contents: 98 99; Function Attrs: nounwind uwtable 100define void @_Z2f1v() #0 !dbg !4 { 101entry: 102 ret void, !dbg !13 103} 104 105; Function Attrs: nounwind uwtable 106define void @_Z2f2v() #0 section "__TEXT,__bar" !dbg !7 { 107entry: 108 ret void, !dbg !14 109} 110 111; Function Attrs: alwaysinline nounwind uwtable 112define void @_Z2f3v() #1 !dbg !8 { 113entry: 114 call void @_Z2f1v(), !dbg !15 115 ret void, !dbg !16 116} 117 118; Function Attrs: nounwind uwtable 119define void @_Z2f4v() #0 !dbg !9 { 120entry: 121 call void @_Z2f1v() #2, !dbg !17 122 ret void, !dbg !19 123} 124 125attributes #0 = { nounwind 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" } 126attributes #1 = { alwaysinline nounwind 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" } 127attributes #2 = { nounwind } 128 129!llvm.dbg.cu = !{!0} 130!llvm.module.flags = !{!10, !11} 131!llvm.ident = !{!12} 132 133!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, producer: "clang version 3.6.0 ", isOptimized: false, emissionKind: LineTablesOnly, file: !1, enums: !2, retainedTypes: !2, globals: !2, imports: !2) 134!1 = !DIFile(filename: "gmlt.cpp", directory: "/tmp/dbginfo") 135!2 = !{} 136!4 = distinct !DISubprogram(name: "f1", line: 1, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, unit: !0, scopeLine: 1, file: !1, scope: !5, type: !6, variables: !2) 137!5 = !DIFile(filename: "gmlt.cpp", directory: "/tmp/dbginfo") 138!6 = !DISubroutineType(types: !2) 139!7 = distinct !DISubprogram(name: "f2", line: 2, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, unit: !0, scopeLine: 2, file: !1, scope: !5, type: !6, variables: !2) 140!8 = distinct !DISubprogram(name: "f3", line: 3, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, unit: !0, scopeLine: 3, file: !1, scope: !5, type: !6, variables: !2) 141!9 = distinct !DISubprogram(name: "f4", line: 4, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, unit: !0, scopeLine: 4, file: !1, scope: !5, type: !6, variables: !2) 142!10 = !{i32 2, !"Dwarf Version", i32 4} 143!11 = !{i32 2, !"Debug Info Version", i32 3} 144!12 = !{!"clang version 3.6.0 "} 145!13 = !DILocation(line: 1, column: 12, scope: !4) 146!14 = !DILocation(line: 2, column: 53, scope: !7) 147!15 = !DILocation(line: 3, column: 44, scope: !8) 148!16 = !DILocation(line: 3, column: 50, scope: !8) 149!17 = !DILocation(line: 3, column: 44, scope: !8, inlinedAt: !18) 150!18 = !DILocation(line: 4, column: 13, scope: !9) 151!19 = !DILocation(line: 4, column: 19, scope: !9) 152