; Generated from the following source compiled with clang++ -gmlt: ; void f1() {} ; void __attribute__((section("__TEXT,__bar"))) f2() {} ; void __attribute__((always_inline)) f3() { f1(); } ; void f4() { f3(); } ; Check that ; * -gmlt includes no DW_TAG_subprograms for subprograms without inlined ; subroutines. ; * yet still produces DW_AT_ranges and a range list in debug_ranges that ; describes those subprograms ; CHECK: DW_TAG_compile_unit ; CHECK: DW_AT_ranges [DW_FORM_sec_offset] (0x00000000 ; CHECK-NOT: {{DW_TAG|NULL}} ; Omitting the subprograms without inlined subroutines is not possible ; currently on Darwin as dsymutil will drop the whole CU if it has no subprograms ; (which happens with this optimization if there are no inlined subroutines). ; DARWIN: DW_TAG_subprogram ; DARWIN-NOT: DW_TAG ; DARWIN: DW_AT_name {{.*}} "f1" ; DARWIN-NOT: {{DW_TAG|NULL}} ; DARWIN: DW_TAG_subprogram ; DARWIN-NOT: DW_TAG ; DARWIN: DW_AT_name {{.*}} "f2" ; DARWIN-NOT: {{DW_TAG|NULL}} ; DARWIN: DW_TAG_subprogram ; DARWIN-NOT: DW_TAG ; Can't check the abstract_origin value across the DARWIN/CHECK checking and ; ordering, so don't bother - just trust me, it refers to f3 down there. ; DARWIN: DW_AT_abstract_origin ; DARWIN-NOT: {{DW_TAG|NULL}} ; FIXME: Emitting separate abstract definitions is inefficient when we could ; just attach the DW_AT_name to the inlined_subroutine directly. Except that ; would produce many string relocations. Implement string indexing in the ; skeleton CU to address the relocation problem, then remove abstract ; definitions from -gmlt here. ; CHECK: DW_TAG_subprogram ; CHECK-NEXT: DW_AT_name {{.*}}"f3" ; CHECK-NEXT: DW_AT_inline ; Check that we only provide the minimal attributes on a subprogram to save space. ; CHECK: DW_TAG_subprogram ; CHECK-NEXT: DW_AT_low_pc ; CHECK-NEXT: DW_AT_high_pc ; CHECK-NEXT: DW_AT_name ; CHECK-NOT: {{DW_TAG|DW_AT}} ; CHECK: DW_TAG_inlined_subroutine ; As mentioned above - replace DW_AT_abstract_origin with DW_AT_name to save ; space once we have support for string indexing in non-dwo sections ; CHECK-NEXT: DW_AT_abstract_origin {{.*}} "f3" ; CHECK-NEXT: DW_AT_low_pc ; CHECK-NEXT: DW_AT_high_pc ; CHECK-NEXT: DW_AT_call_file ; CHECK-NEXT: DW_AT_call_line ; CHECK-NEXT: DW_AT_call_column ; Make sure we don't have any other subprograms here (subprograms with no ; inlined subroutines are omitted by design to save space) ; CHECK-NOT: {{DW_TAG|DW_AT}} ; CHECK: NULL ; CHECK-NOT: {{DW_TAG|DW_AT}} ; CHECK: NULL ; CHECK: .debug_ranges contents: ; ... some addresses (depends on platform (such as platforms with function ; reordering in the linker), and looks wonky on platforms with zero values ; written in relocation places (dumper needs to be fixed to read the ; relocations rather than interpret that as the end of a range list)) ; CHECK: 00000000 <End of list> ; Check that we don't emit any pubnames or pubtypes under -gmlt ; CHECK-NOT: .debug_pubnames contents: ; CHECK-NOT: .debug_pubtypes contents: ; Function Attrs: nounwind uwtable define void @_Z2f1v() #0 !dbg !4 { entry: ret void, !dbg !13 } ; Function Attrs: nounwind uwtable define void @_Z2f2v() #0 section "__TEXT,__bar" !dbg !7 { entry: ret void, !dbg !14 } ; Function Attrs: alwaysinline nounwind uwtable define void @_Z2f3v() #1 !dbg !8 { entry: call void @_Z2f1v(), !dbg !15 ret void, !dbg !16 } ; Function Attrs: nounwind uwtable define void @_Z2f4v() #0 !dbg !9 { entry: call void @_Z2f1v() #2, !dbg !17 ret void, !dbg !19 } attributes #0 = { nounwind uwtable "less-precise-fpmad"="false" "frame-pointer"="all" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" } attributes #1 = { alwaysinline nounwind uwtable "less-precise-fpmad"="false" "frame-pointer"="all" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" } attributes #2 = { nounwind } !llvm.dbg.cu = !{!0} !llvm.module.flags = !{!10, !11} !llvm.ident = !{!12} !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) !1 = !DIFile(filename: "gmlt.cpp", directory: "/tmp/dbginfo") !2 = !{} !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, retainedNodes: !2) !5 = !DIFile(filename: "gmlt.cpp", directory: "/tmp/dbginfo") !6 = !DISubroutineType(types: !2) !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, retainedNodes: !2) !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, retainedNodes: !2) !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, retainedNodes: !2) !10 = !{i32 2, !"Dwarf Version", i32 4} !11 = !{i32 2, !"Debug Info Version", i32 3} !12 = !{!"clang version 3.6.0 "} !13 = !DILocation(line: 1, column: 12, scope: !4) !14 = !DILocation(line: 2, column: 53, scope: !7) !15 = !DILocation(line: 3, column: 44, scope: !8) !16 = !DILocation(line: 3, column: 50, scope: !8) !17 = !DILocation(line: 3, column: 44, scope: !8, inlinedAt: !18) !18 = !DILocation(line: 4, column: 13, scope: !9) !19 = !DILocation(line: 4, column: 19, scope: !9)