| ; REQUIRES: object-emission |
| ; |
| ; RUN: llvm-link %s %p/type-unique-odr-b.ll -S -o - \ |
| ; RUN: | %llc_dwarf -dwarf-linkage-names=All -filetype=obj -O0 \ |
| ; RUN: | llvm-dwarfdump -debug-info - \ |
| ; RUN: | FileCheck %s |
| ; RUN: llvm-link %p/type-unique-odr-b.ll %s -S -o - \ |
| ; RUN: | %llc_dwarf -dwarf-linkage-names=All -filetype=obj -O0 \ |
| ; RUN: | llvm-dwarfdump -debug-info - \ |
| ; RUN: | FileCheck %s |
| ; |
| ; Test ODR-based type uniquing for C++ class members. |
| ; rdar://problem/15851313. |
| ; |
| ; $ cat -n type-unique-odr-a.cpp |
| ; 1 class A { |
| ; 2 int data; |
| ; 3 protected: |
| ; 4 void getFoo(); |
| ; 5 }; |
| ; 6 |
| ; 7 static void bar() { |
| ; 8 A a; |
| ; 9 } |
| ; 10 |
| ; 11 void baz() { bar(); } |
| ;; #include "ab.h" |
| ; foo_t bar() { |
| ; return A().getFoo(); |
| ; } |
| ; |
| ; CHECK: DW_TAG_class_type |
| ; CHECK-NEXT: DW_AT_name ("A") |
| ; CHECK-NOT: DW_TAG |
| ; CHECK: DW_TAG_member |
| ; CHECK-NEXT: DW_AT_name ("data") |
| ; CHECK-NOT: DW_TAG |
| ; CHECK: DW_TAG_subprogram |
| ; CHECK-NOT: DW_TAG |
| ; CHECK: DW_AT_linkage_name ("_ZN1A6getFooEv") |
| ; CHECK-NOT: DW_TAG |
| ; CHECK: DW_AT_name ("getFoo") |
| |
| ; Ensure that there aren't any other subprograms in class A. |
| ; CHECK-NOT: DW_TAG |
| ; CHECK: DW_TAG_formal_parameter |
| ; CHECK-NOT: DW_TAG |
| ; CHECK: NULL |
| ; CHECK-NOT: DW_TAG |
| ; CHECK: NULL |
| ; CHECK-NOT: DW_TAG |
| ; CHECK: DW_TAG_base_type |
| |
| ; Ensure that getFoo and A are only emitted once. |
| ; CHECK-NOT: AT_name{{.*(getFoo)|("A")}} |
| |
| ; ModuleID = 'type-unique-odr-a.cpp' |
| |
| %class.A = type { i32 } |
| |
| ; Function Attrs: nounwind |
| define void @_Z3bazv() #0 !dbg !15 { |
| entry: |
| call void @_ZL3barv(), !dbg !23 |
| ret void, !dbg !23 |
| } |
| |
| ; Function Attrs: nounwind |
| define internal void @_ZL3barv() #0 !dbg !19 { |
| entry: |
| %a = alloca %class.A, align 4 |
| call void @llvm.dbg.declare(metadata ptr %a, metadata !24, metadata !DIExpression()), !dbg !25 |
| ret void, !dbg !26 |
| } |
| |
| ; Function Attrs: nounwind readnone |
| declare void @llvm.dbg.declare(metadata, metadata, metadata) #1 |
| |
| attributes #0 = { nounwind } |
| attributes #1 = { nounwind readnone } |
| |
| !llvm.dbg.cu = !{!0} |
| !llvm.module.flags = !{!20, !21} |
| !llvm.ident = !{!22} |
| |
| !0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, producer: "clang version 3.5.0 ", isOptimized: false, emissionKind: FullDebug, file: !1, enums: !2, retainedTypes: !3, globals: !2, imports: !2) |
| !1 = !DIFile(filename: "<unknown>", directory: "") |
| !2 = !{} |
| !3 = !{!4} |
| !4 = !DICompositeType(tag: DW_TAG_class_type, name: "A", line: 1, size: 32, align: 32, file: !5, elements: !6, identifier: "_ZTS1A") |
| !5 = !DIFile(filename: "type-unique-odr-a.cpp", directory: "") |
| !6 = !{!7, !9} |
| !7 = !DIDerivedType(tag: DW_TAG_member, name: "data", line: 2, size: 32, align: 32, flags: DIFlagPrivate, file: !5, scope: !4, baseType: !8) |
| !8 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed) |
| !9 = !DISubprogram(name: "getFoo", linkageName: "_ZN1A6getFooEv", line: 4, isLocal: false, isDefinition: false, virtualIndex: 6, flags: DIFlagProtected | DIFlagPrototyped, isOptimized: false, scopeLine: 4, file: !5, scope: !4, type: !10) |
| !10 = !DISubroutineType(types: !11) |
| !11 = !{null, !12} |
| !12 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, flags: DIFlagArtificial | DIFlagObjectPointer, baseType: !4) |
| !15 = distinct !DISubprogram(name: "baz", linkageName: "_Z3bazv", line: 11, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, unit: !0, scopeLine: 11, file: !5, scope: !16, type: !17, retainedNodes: !2) |
| !16 = !DIFile(filename: "type-unique-odr-a.cpp", directory: "") |
| !17 = !DISubroutineType(types: !18) |
| !18 = !{null} |
| !19 = distinct !DISubprogram(name: "bar", linkageName: "_ZL3barv", line: 7, isLocal: true, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, unit: !0, scopeLine: 7, file: !5, scope: !16, type: !17, retainedNodes: !2) |
| !20 = !{i32 2, !"Dwarf Version", i32 4} |
| !21 = !{i32 1, !"Debug Info Version", i32 3} |
| !22 = !{!"clang version 3.5.0 "} |
| !23 = !DILocation(line: 11, scope: !15) |
| !24 = !DILocalVariable(name: "a", line: 8, scope: !19, file: !16, type: !4) |
| !25 = !DILocation(line: 8, scope: !19) |
| !26 = !DILocation(line: 9, scope: !19) |