1; REQUIRES: object-emission 2; 3; RUN: llvm-link %s %p/type-unique-odr-b.ll -S -o - | %llc_dwarf -filetype=obj -O0 | llvm-dwarfdump -debug-dump=info - | FileCheck %s 4; 5; Test ODR-based type uniquing for C++ class members. 6; rdar://problem/15851313. 7; 8; $ cat -n type-unique-odr-a.cpp 9; 1 class A { 10; 2 int data; 11; 3 protected: 12; 4 void getFoo(); 13; 5 }; 14; 6 15; 7 static void bar() { 16; 8 A a; 17; 9 } 18; 10 19; 11 void baz() { bar(); } 20;; #include "ab.h" 21; foo_t bar() { 22; return A().getFoo(); 23; } 24; 25; CHECK: DW_TAG_class_type 26; CHECK-NEXT: DW_AT_name {{.*}} "A" 27; CHECK-NOT: DW_TAG 28; CHECK: DW_TAG_member 29; CHECK-NEXT: DW_AT_name {{.*}} "data" 30; CHECK-NOT: DW_TAG 31; CHECK: DW_TAG_subprogram 32; CHECK-NOT: DW_TAG 33; CHECK: DW_AT_MIPS_linkage_name {{.*}} "_ZN1A6getFooEv" 34; CHECK-NOT: DW_TAG 35; CHECK: DW_AT_name {{.*}} "getFoo" 36; CHECK: DW_TAG_subprogram 37; CHECK-NOT: DW_TAG 38; CHECK: DW_AT_MIPS_linkage_name {{.*}} "_Z3bazv" 39; CHECK: DW_TAG_subprogram 40; CHECK-NOT: DW_TAG 41; CHECK: DW_AT_MIPS_linkage_name {{.*}} "_ZL3barv" 42 43; getFoo and A may only appear once. 44; CHECK-NOT: {{(getFoo)|("A")}} 45 46 47; ModuleID = 'type-unique-odr-a.cpp' 48 49%class.A = type { i32 } 50 51; Function Attrs: nounwind 52define void @_Z3bazv() #0 { 53entry: 54 call void @_ZL3barv(), !dbg !23 55 ret void, !dbg !23 56} 57 58; Function Attrs: nounwind 59define internal void @_ZL3barv() #0 { 60entry: 61 %a = alloca %class.A, align 4 62 call void @llvm.dbg.declare(metadata !{%class.A* %a}, metadata !24), !dbg !25 63 ret void, !dbg !26 64} 65 66; Function Attrs: nounwind readnone 67declare void @llvm.dbg.declare(metadata, metadata) #1 68 69attributes #0 = { nounwind } 70attributes #1 = { nounwind readnone } 71 72!llvm.dbg.cu = !{!0} 73!llvm.module.flags = !{!20, !21} 74!llvm.ident = !{!22} 75 76!0 = metadata !{i32 786449, metadata !1, i32 4, metadata !"clang version 3.5.0 ", i1 false, metadata !"", i32 0, metadata !2, metadata !3, metadata !14, metadata !2, metadata !2, metadata !"", i32 1} ; [ DW_TAG_compile_unit ] [<unknown>] [DW_LANG_C_plus_plus] 77!1 = metadata !{metadata !"<unknown>", metadata !""} 78!2 = metadata !{} 79!3 = metadata !{metadata !4} 80!4 = metadata !{i32 786434, metadata !5, null, metadata !"A", i32 1, i64 32, i64 32, i32 0, i32 0, null, metadata !6, i32 0, null, null, metadata !"_ZTS1A"} ; [ DW_TAG_class_type ] [A] [line 1, size 32, align 32, offset 0] [def] [from ] 81!5 = metadata !{metadata !"type-unique-odr-a.cpp", metadata !""} 82!6 = metadata !{metadata !7, metadata !9} 83!7 = metadata !{i32 786445, metadata !5, metadata !"_ZTS1A", metadata !"data", i32 2, i64 32, i64 32, i64 0, i32 1, metadata !8} ; [ DW_TAG_member ] [data] [line 2, size 32, align 32, offset 0] [private] [from int] 84!8 = metadata !{i32 786468, null, null, metadata !"int", i32 0, i64 32, i64 32, i64 0, i32 0, i32 5} ; [ DW_TAG_base_type ] [int] [line 0, size 32, align 32, offset 0, enc DW_ATE_signed] 85!9 = metadata !{i32 786478, metadata !5, metadata !"_ZTS1A", metadata !"getFoo", metadata !"getFoo", metadata !"_ZN1A6getFooEv", i32 4, metadata !10, i1 false, i1 false, i32 0, i32 0, null, i32 258, i1 false, null, null, i32 0, metadata !13, i32 4} ; [ DW_TAG_subprogram ] [line 4] [protected] [getFoo] 86!10 = metadata !{i32 786453, i32 0, null, metadata !"", i32 0, i64 0, i64 0, i64 0, i32 0, null, metadata !11, i32 0, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ] 87!11 = metadata !{null, metadata !12} 88!12 = metadata !{i32 786447, null, null, metadata !"", i32 0, i64 64, i64 64, i64 0, i32 1088, metadata !"_ZTS1A"} ; [ DW_TAG_pointer_type ] [line 0, size 64, align 64, offset 0] [artificial] [from _ZTS1A] 89!13 = metadata !{i32 786468} 90!14 = metadata !{metadata !15, metadata !19} 91!15 = metadata !{i32 786478, metadata !5, metadata !16, metadata !"baz", metadata !"baz", metadata !"_Z3bazv", i32 11, metadata !17, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 false, void ()* @_Z3bazv, null, null, metadata !2, i32 11} ; [ DW_TAG_subprogram ] [line 11] [def] [baz] 92!16 = metadata !{i32 786473, metadata !5} ; [ DW_TAG_file_type ] [type-unique-odr-a.cpp] 93!17 = metadata !{i32 786453, i32 0, null, metadata !"", i32 0, i64 0, i64 0, i64 0, i32 0, null, metadata !18, i32 0, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ] 94!18 = metadata !{null} 95!19 = metadata !{i32 786478, metadata !5, metadata !16, metadata !"bar", metadata !"bar", metadata !"_ZL3barv", i32 7, metadata !17, i1 true, i1 true, i32 0, i32 0, null, i32 256, i1 false, void ()* @_ZL3barv, null, null, metadata !2, i32 7} ; [ DW_TAG_subprogram ] [line 7] [local] [def] [bar] 96!20 = metadata !{i32 2, metadata !"Dwarf Version", i32 4} 97!21 = metadata !{i32 1, metadata !"Debug Info Version", i32 1} 98!22 = metadata !{metadata !"clang version 3.5.0 "} 99!23 = metadata !{i32 11, i32 0, metadata !15, null} 100!24 = metadata !{i32 786688, metadata !19, metadata !"a", metadata !16, i32 8, metadata !"_ZTS1A", i32 0, i32 0} ; [ DW_TAG_auto_variable ] [a] [line 8] 101!25 = metadata !{i32 8, i32 0, metadata !19, null} ; [ DW_TAG_imported_declaration ] 102!26 = metadata !{i32 9, i32 0, metadata !19, null} 103