91 lines · plain
1; REQUIRES: object-emission2 3; RUN: llvm-link %s %p/type-unique-simple-b.ll -S -o %t4; RUN: cat %t | FileCheck %s -check-prefix=LINK5; RUN: %llc_dwarf -filetype=obj -O0 < %t > %t26; RUN: llvm-dwarfdump -v -debug-info %t2 | FileCheck %s7 8; Make sure the backend generates a single DIE and uses ref_addr.9; CHECK: 0x[[BASE:.*]]: DW_TAG_structure_type10; CHECK-NEXT: DW_AT_name {{.*}}"Base"11; CHECK-NOT: DW_TAG_structure_type12; CHECK: 0x[[INT:.*]]: DW_TAG_base_type13; CHECK-NEXT: DW_AT_name {{.*}}"int"14; CHECK-NOT: DW_TAG_base_type15 16; CHECK: DW_TAG_compile_unit17; CHECK: DW_TAG_formal_parameter18; CHECK: DW_AT_type [DW_FORM_ref_addr] {{.*}}[[INT]]19; CHECK: DW_TAG_variable20; CHECK: DW_AT_type [DW_FORM_ref_addr] {{.*}}[[BASE]]21 22; Make sure llvm-link only generates a single copy of the struct.23; LINK: DW_TAG_structure_type24; LINK-NOT: DW_TAG_structure_type25; Content of header files:26; struct Base {27; int a;28; };29; Content of foo.cpp:30; 31; #include "a.hpp"32; void f(int a) {33; Base t;34; }35; Content of bar.cpp:36; 37; #include "a.hpp"38; void f(int);39; void g(int a) {40; Base t;41; }42; int main() {43; f(0);44; g(1);45; return 0;46; }47; ModuleID = 'foo.cpp'48 49%struct.Base = type { i32 }50 51; Function Attrs: nounwind ssp uwtable52define void @_Z1fi(i32 %a) #0 !dbg !10 {53entry:54 %a.addr = alloca i32, align 455 %t = alloca %struct.Base, align 456 store i32 %a, ptr %a.addr, align 457 call void @llvm.dbg.declare(metadata ptr %a.addr, metadata !15, metadata !DIExpression()), !dbg !1658 call void @llvm.dbg.declare(metadata ptr %t, metadata !17, metadata !DIExpression()), !dbg !1859 ret void, !dbg !1960}61 62; Function Attrs: nounwind readnone63declare void @llvm.dbg.declare(metadata, metadata, metadata) #164 65attributes #0 = { nounwind ssp 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" }66attributes #1 = { nounwind readnone }67 68!llvm.dbg.cu = !{!0}69!llvm.module.flags = !{!14, !20}70 71!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, producer: "clang version 3.4", isOptimized: false, emissionKind: FullDebug, file: !1, enums: !2, retainedTypes: !3, globals: !2, imports: !2)72!1 = !DIFile(filename: "foo.cpp", directory: "/Users/mren/c_testing/type_unique_air/simple")73!2 = !{}74!3 = !{!4}75!4 = !DICompositeType(tag: DW_TAG_structure_type, name: "Base", line: 1, size: 32, align: 32, file: !5, elements: !6, identifier: "_ZTS4Base")76!5 = !DIFile(filename: "./a.hpp", directory: "/Users/mren/c_testing/type_unique_air/simple")77!6 = !{!7}78!7 = !DIDerivedType(tag: DW_TAG_member, name: "a", line: 2, size: 32, align: 32, file: !5, scope: !4, baseType: !8)79!8 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed)80!10 = distinct !DISubprogram(name: "f", linkageName: "_Z1fi", line: 3, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, unit: !0, scopeLine: 3, file: !1, scope: !11, type: !12, retainedNodes: !2)81!11 = !DIFile(filename: "foo.cpp", directory: "/Users/mren/c_testing/type_unique_air/simple")82!12 = !DISubroutineType(types: !13)83!13 = !{null, !8}84!14 = !{i32 2, !"Dwarf Version", i32 3}85!15 = !DILocalVariable(name: "a", line: 3, arg: 1, scope: !10, file: !11, type: !8)86!16 = !DILocation(line: 3, scope: !10)87!17 = !DILocalVariable(name: "t", line: 4, scope: !10, file: !11, type: !4)88!18 = !DILocation(line: 4, scope: !10)89!19 = !DILocation(line: 5, scope: !10)90!20 = !{i32 1, !"Debug Info Version", i32 3}91