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: AT_name{{.*(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, metadata !{!"0x102"}), !dbg !25 63 ret void, !dbg !26 64} 65 66; Function Attrs: nounwind readnone 67declare void @llvm.dbg.declare(metadata, 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 = !{!"0x11\004\00clang version 3.5.0 \000\00\000\00\001", !1, !2, !3, !14, !2, !2} ; [ DW_TAG_compile_unit ] [<unknown>] [DW_LANG_C_plus_plus] 77!1 = !{!"<unknown>", !""} 78!2 = !{} 79!3 = !{!4} 80!4 = !{!"0x2\00A\001\0032\0032\000\000\000", !5, null, null, !6, null, null, !"_ZTS1A"} ; [ DW_TAG_class_type ] [A] [line 1, size 32, align 32, offset 0] [def] [from ] 81!5 = !{!"type-unique-odr-a.cpp", !""} 82!6 = !{!7, !9} 83!7 = !{!"0xd\00data\002\0032\0032\000\001", !5, !"_ZTS1A", !8} ; [ DW_TAG_member ] [data] [line 2, size 32, align 32, offset 0] [private] [from int] 84!8 = !{!"0x24\00int\000\0032\0032\000\000\005", null, null} ; [ DW_TAG_base_type ] [int] [line 0, size 32, align 32, offset 0, enc DW_ATE_signed] 85!9 = !{!"0x2e\00getFoo\00getFoo\00_ZN1A6getFooEv\004\000\000\000\006\00258\000\004", !5, !"_ZTS1A", !10, null, null, null, i32 0, !13} ; [ DW_TAG_subprogram ] [line 4] [protected] [getFoo] 86!10 = !{!"0x15\00\000\000\000\000\000\000", i32 0, null, null, !11, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ] 87!11 = !{null, !12} 88!12 = !{!"0xf\00\000\0064\0064\000\001088", null, null, !"_ZTS1A"} ; [ DW_TAG_pointer_type ] [line 0, size 64, align 64, offset 0] [artificial] [from _ZTS1A] 89!13 = !{i32 786468} 90!14 = !{!15, !19} 91!15 = !{!"0x2e\00baz\00baz\00_Z3bazv\0011\000\001\000\006\00256\000\0011", !5, !16, !17, null, void ()* @_Z3bazv, null, null, !2} ; [ DW_TAG_subprogram ] [line 11] [def] [baz] 92!16 = !{!"0x29", !5} ; [ DW_TAG_file_type ] [type-unique-odr-a.cpp] 93!17 = !{!"0x15\00\000\000\000\000\000\000", i32 0, null, null, !18, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ] 94!18 = !{null} 95!19 = !{!"0x2e\00bar\00bar\00_ZL3barv\007\001\001\000\006\00256\000\007", !5, !16, !17, null, void ()* @_ZL3barv, null, null, !2} ; [ DW_TAG_subprogram ] [line 7] [local] [def] [bar] 96!20 = !{i32 2, !"Dwarf Version", i32 4} 97!21 = !{i32 1, !"Debug Info Version", i32 2} 98!22 = !{!"clang version 3.5.0 "} 99!23 = !MDLocation(line: 11, scope: !15) 100!24 = !{!"0x100\00a\008\000", !19, !16, !"_ZTS1A"} ; [ DW_TAG_auto_variable ] [a] [line 8] 101!25 = !MDLocation(line: 8, scope: !19) 102!26 = !MDLocation(line: 9, scope: !19) 103