1 ; REQUIRES: object-emission 2 ; RUN: %llc_dwarf -O0 -filetype=obj < %s | llvm-dwarfdump - | FileCheck %s 3 4 ; Generated from the following source compiled with clang++ -gmlt: 5 ; void f1() {} 6 ; void __attribute__((section("__TEXT,__bar"))) f2() {} 7 ; void __attribute__((always_inline)) f3() { f1(); } 8 ; void f4() { f3(); } 9 10 ; Check that 11 ; * -gmlt includes no DW_TAG_subprograms for subprograms without inlined 12 ; subroutines. 13 ; * yet still produces DW_AT_ranges and a range list in debug_ranges that 14 ; describes those subprograms 15 16 ; CHECK: DW_TAG_compile_unit 17 ; CHECK: DW_AT_ranges [DW_FORM_sec_offset] (0x00000000 18 ; CHECK-NOT: {{DW_TAG|NULL}} 19 20 ; Omitting the subprograms without inlined subroutines is not possible 21 ; currently on Darwin as dsymutil will drop the whole CU if it has no subprograms 22 ; (which happens with this optimization if there are no inlined subroutines). 23 24 ; DARWIN: DW_TAG_subprogram 25 ; DARWIN-NOT: DW_TAG 26 ; DARWIN: DW_AT_name {{.*}} "f1" 27 ; DARWIN-NOT: {{DW_TAG|NULL}} 28 ; DARWIN: DW_TAG_subprogram 29 ; DARWIN-NOT: DW_TAG 30 ; DARWIN: DW_AT_name {{.*}} "f2" 31 ; DARWIN-NOT: {{DW_TAG|NULL}} 32 ; DARWIN: DW_TAG_subprogram 33 ; DARWIN-NOT: DW_TAG 34 ; Can't check the abstract_origin value across the DARWIN/CHECK checking and 35 ; ordering, so don't bother - just trust me, it refers to f3 down there. 36 ; DARWIN: DW_AT_abstract_origin 37 ; DARWIN-NOT: {{DW_TAG|NULL}} 38 39 40 ; FIXME: Emitting separate abstract definitions is inefficient when we could 41 ; just attach the DW_AT_name to the inlined_subroutine directly. Except that 42 ; would produce many string relocations. Implement string indexing in the 43 ; skeleton CU to address the relocation problem, then remove abstract 44 ; definitions from -gmlt here. 45 46 ; CHECK: DW_TAG_subprogram 47 ; CHECK-NEXT: DW_AT_name {{.*}} "f3" 48 49 ; FIXME: We don't really need DW_AT_inline, consumers can ignore this due to 50 ; the absence of high_pc/low_pc/ranges and know that they just need it for 51 ; retrieving the name of a concrete inlined instance 52 53 ; CHECK-NOT: {{DW_TAG|DW_AT|NULL}} 54 55 ; Check that we only provide the minimal attributes on a subprogram to save space. 56 ; CHECK: DW_TAG_subprogram 57 ; CHECK-NEXT: DW_AT_low_pc 58 ; CHECK-NEXT: DW_AT_high_pc 59 ; CHECK-NEXT: DW_AT_name 60 ; CHECK-NOT: {{DW_TAG|DW_AT}} 61 ; CHECK: DW_TAG_inlined_subroutine 62 63 ; As mentioned above - replace DW_AT_abstract_origin with DW_AT_name to save 64 ; space once we have support for string indexing in non-dwo sections 65 66 ; CHECK-NEXT: DW_AT_abstract_origin {{.*}} "f3" 67 ; CHECK-NEXT: DW_AT_low_pc 68 ; CHECK-NEXT: DW_AT_high_pc 69 ; CHECK-NEXT: DW_AT_call_file 70 ; CHECK-NEXT: DW_AT_call_line 71 72 ; Make sure we don't have any other subprograms here (subprograms with no 73 ; inlined subroutines are omitted by design to save space) 74 75 ; CHECK-NOT: {{DW_TAG|DW_AT}} 76 ; CHECK: NULL 77 ; CHECK-NOT: {{DW_TAG|DW_AT}} 78 ; CHECK: NULL 79 80 81 ; CHECK: .debug_ranges contents: 82 83 ; ... some addresses (depends on platform (such as platforms with function 84 ; reordering in the linker), and looks wonky on platforms with zero values 85 ; written in relocation places (dumper needs to be fixed to read the 86 ; relocations rather than interpret that as the end of a range list)) 87 88 ; CHECK: 00000000 <End of list> 89 90 91 ; Check that we don't emit any pubnames or pubtypes under -gmlt 92 ; CHECK: .debug_pubnames contents: 93 ; CHECK-NOT: Offset 94 95 ; CHECK: .debug_pubtypes contents: 96 ; CHECK-NOT: Offset 97 98 ; CHECK: .apple{{.*}} contents: 99 100 ; Function Attrs: nounwind uwtable 101 define void @_Z2f1v() #0 !dbg !4 { 102 entry: 103 ret void, !dbg !13 104 } 105 106 ; Function Attrs: nounwind uwtable 107 define void @_Z2f2v() #0 section "__TEXT,__bar" !dbg !7 { 108 entry: 109 ret void, !dbg !14 110 } 111 112 ; Function Attrs: alwaysinline nounwind uwtable 113 define void @_Z2f3v() #1 !dbg !8 { 114 entry: 115 call void @_Z2f1v(), !dbg !15 116 ret void, !dbg !16 117 } 118 119 ; Function Attrs: nounwind uwtable 120 define void @_Z2f4v() #0 !dbg !9 { 121 entry: 122 call void @_Z2f1v() #2, !dbg !17 123 ret void, !dbg !19 124 } 125 126 attributes #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" } 127 attributes #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" } 128 attributes #2 = { nounwind } 129 130 !llvm.dbg.cu = !{!0} 131 !llvm.module.flags = !{!10, !11} 132 !llvm.ident = !{!12} 133 134 !0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, producer: "clang version 3.6.0 ", isOptimized: false, emissionKind: 2, file: !1, enums: !2, retainedTypes: !2, subprograms: !3, globals: !2, imports: !2) 135 !1 = !DIFile(filename: "gmlt.cpp", directory: "/tmp/dbginfo") 136 !2 = !{} 137 !3 = !{!4, !7, !8, !9} 138 !4 = distinct !DISubprogram(name: "f1", line: 1, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, scopeLine: 1, file: !1, scope: !5, type: !6, variables: !2) 139 !5 = !DIFile(filename: "gmlt.cpp", directory: "/tmp/dbginfo") 140 !6 = !DISubroutineType(types: !2) 141 !7 = distinct !DISubprogram(name: "f2", line: 2, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, scopeLine: 2, file: !1, scope: !5, type: !6, variables: !2) 142 !8 = distinct !DISubprogram(name: "f3", line: 3, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, scopeLine: 3, file: !1, scope: !5, type: !6, variables: !2) 143 !9 = distinct !DISubprogram(name: "f4", line: 4, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, scopeLine: 4, file: !1, scope: !5, type: !6, variables: !2) 144 !10 = !{i32 2, !"Dwarf Version", i32 4} 145 !11 = !{i32 2, !"Debug Info Version", i32 3} 146 !12 = !{!"clang version 3.6.0 "} 147 !13 = !DILocation(line: 1, column: 12, scope: !4) 148 !14 = !DILocation(line: 2, column: 53, scope: !7) 149 !15 = !DILocation(line: 3, column: 44, scope: !8) 150 !16 = !DILocation(line: 3, column: 50, scope: !8) 151 !17 = !DILocation(line: 3, column: 44, scope: !8, inlinedAt: !18) 152 !18 = !DILocation(line: 4, column: 13, scope: !9) 153 !19 = !DILocation(line: 4, column: 19, scope: !9) 154
