| ; RUN: llc -split-dwarf-file=foo.dwo -O0 < %s -mtriple=x86_64-unknown-linux-gnu -filetype=obj > %t |
| ; RUN: llvm-dwarfdump -v -debug-info %t | FileCheck %s |
| ; RUN: llvm-objdump -r %t | FileCheck --check-prefix=RELOCS %s |
| |
| ; Test the emission of gmlt-like inlining information into the skeleton unit. |
| ; This allows inline-aware symbolication/backtracing given only the linked |
| ; executable, without needing access to the .dwos. |
| |
| ; A simple example of inlining generated with clang -gsplit-dwarf |
| |
| ; A member function is used to force emission of the declaration of the |
| ; function into the .dwo file, which may be shared with other CUs in the dwo ; |
| ; under fission, but should not be shared with the skeleton's CU. This also |
| ; tests the general case of context emission, which is suppressed in gmlt-like |
| ; data. |
| |
| ; Include a template just to test template parameters are not emitted in |
| ; gmlt-like data. |
| |
| ; And some varargs to make sure DW_TAG_unspecified_parameters is not emitted. |
| |
| ; And a using declaration in a nested lexical_block... because that shouldn't |
| ; be emitted either. |
| |
| ; Minor complication: after generating the LLVM IR, it was manually edited so |
| ; that the 'f1()' call from f3 was reordered to appear between the two inlined |
| ; f1 calls from f2. This causes f2's inlined_subroutine to use DW_AT_ranges, |
| ; thus exercising range list generation/referencing which was buggy. |
| |
| ; struct foo { |
| ; template<typename T> |
| ; static void f2(); |
| ; static void f3(...); |
| ; }; |
| ; |
| ; void f1(); |
| ; |
| ; template<typename T> |
| ; inline __attribute__((always_inline)) void foo::f2() { |
| ; f1(); |
| ; f1(); |
| ; } |
| ; |
| ; void foo::f3(...) { |
| ; if (true) { |
| ; f1(); |
| ; f2<int>(); |
| ; using ::foo; |
| ; } |
| ; } |
| |
| ; Check that we emit the usual gmlt-like data for this file, including brief |
| ; descriptions of subprograms with inlined scopes. |
| |
| ; FIXME: Once tools support indexed addresses in the skeleton CU, we should use |
| ; those (DW_FORM_addr would become DW_FORM_GNU_addr_index below) since those |
| ; addresses will already be in the address pool anyway. |
| |
| ; CHECK: DW_TAG_subprogram |
| ; CHECK-NEXT: DW_AT_name {{.*}} "f2<int>" |
| ; CHECK-NEXT: DW_AT_inline |
| ; CHECK: DW_TAG_subprogram |
| ; CHECK-NEXT: DW_AT_low_pc [DW_FORM_addr] |
| ; CHECK-NEXT: DW_AT_high_pc |
| ; CHECK-NEXT: DW_AT_name {{.*}} "f3" |
| ; CHECK-NOT: {{DW_|NULL}} |
| ; CHECK: DW_TAG_inlined_subroutine |
| ; CHECK-NEXT: DW_AT_abstract_origin {{.*}} "f2<int>" |
| ; CHECK-NEXT: DW_AT_ranges |
| ; CHECK-NOT: {{DW_AT|DW_TAG|NULL}} |
| ; CHECK: DW_AT_call_file |
| ; CHECK-NEXT: DW_AT_call_line {{.*}} (18) |
| ; CHECK-NEXT: DW_AT_call_column {{.*}} (0x05) |
| ; CHECK: DW_AT_call_file |
| ; CHECK-NEXT: DW_AT_call_line {{.*}} (21) |
| ; CHECK-NOT: DW_ |
| ; CHECK: .debug_info.dwo contents: |
| |
| ; RELOCS-NOT: RELOCATION RECORDS FOR [.rela.debug_ranges] |
| |
| ; Function Attrs: uwtable |
| define void @_ZN3foo2f3Ez(...) #0 align 2 !dbg !10 { |
| entry: |
| call void @_Z2f1v(), !dbg !26 |
| call void @_Z2f1v(), !dbg !25 |
| call void @_Z2f1v(), !dbg !28 |
| call void @_Z2f1v(), !dbg !29 |
| ret void, !dbg !29 |
| } |
| |
| declare void @_Z2f1v() #1 |
| |
| attributes #0 = { 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 = { "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" } |
| |
| !llvm.dbg.cu = !{!0} |
| !llvm.module.flags = !{!22, !23} |
| !llvm.ident = !{!24} |
| |
| !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) |
| !1 = !DIFile(filename: "fission-inline.cpp", directory: "/tmp/dbginfo") |
| !2 = !{} |
| !3 = !{!4} |
| !4 = !DICompositeType(tag: DW_TAG_structure_type, name: "foo", line: 1, size: 8, align: 8, file: !1, elements: !5, identifier: "_ZTS3foo") |
| !5 = !{!6} |
| !6 = !DISubprogram(name: "f3", linkageName: "_ZN3foo2f3Ez", line: 4, isLocal: false, isDefinition: false, flags: DIFlagPrototyped, isOptimized: false, scopeLine: 4, file: !1, scope: !4, type: !7) |
| !7 = !DISubroutineType(types: !8) |
| !8 = !{null, null} |
| !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) |
| !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) |
| !12 = !DISubroutineType(types: !13) |
| !13 = !{null} |
| !14 = !{!15} |
| !15 = !DITemplateTypeParameter(name: "T", type: !16) |
| !16 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed) |
| !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) |
| !18 = !{!19} |
| !19 = !DIImportedEntity(tag: DW_TAG_imported_declaration, file: !1, line: 19, scope: !20, entity: !4) |
| !20 = distinct !DILexicalBlock(line: 16, column: 13, file: !1, scope: !21) |
| !21 = distinct !DILexicalBlock(line: 16, column: 7, file: !1, scope: !10) |
| !22 = !{i32 2, !"Dwarf Version", i32 4} |
| !23 = !{i32 2, !"Debug Info Version", i32 3} |
| !24 = !{!"clang version 3.6.0 "} |
| !25 = !DILocation(line: 17, column: 5, scope: !20) |
| !26 = !DILocation(line: 11, column: 3, scope: !11, inlinedAt: !27) |
| !27 = !DILocation(line: 18, column: 5, scope: !20) |
| !28 = !DILocation(line: 12, column: 3, scope: !11, inlinedAt: !27) |
| !29 = !DILocation(line: 12, column: 3, scope: !11, inlinedAt: !30) |
| !30 = !DILocation(line: 21, column: 0, scope: !10) |