1 ; RUN: opt -S %s -passes=sroa -o - | FileCheck %s
2 ; RUN: opt --try-experimental-debuginfo-iterators -S %s -passes=sroa -o - | FileCheck %s
6 ;; void fun(std::nullptr_t) {}
8 ;; Check that migrateDebugInfo doesn't crash when encountering an alloca for a
9 ;; variable with a type of unspecified size (e.g. DW_TAG_unspecified_type).
11 ; CHECK: @llvm.dbg.value(metadata ptr %0,{{.+}}, metadata !DIExpression())
12 ;; There should be no new fragment and the value component should remain as %0.
14 define dso_local void @_Z3funDn(ptr %0) #0 !dbg !14 {
16 %.addr = alloca i8*, align 8, !DIAssignID !22
17 call void @llvm.dbg.assign(metadata i1 undef, metadata !21, metadata !DIExpression(), metadata !22, metadata ptr %.addr, metadata !DIExpression()), !dbg !23
18 store ptr %0, ptr %.addr, align 8, !DIAssignID !28
19 call void @llvm.dbg.assign(metadata ptr %0, metadata !21, metadata !DIExpression(), metadata !28, metadata ptr %.addr, metadata !DIExpression()), !dbg !23
23 declare void @llvm.dbg.declare(metadata, metadata, metadata) #1
24 declare void @llvm.dbg.assign(metadata, metadata, metadata, metadata, metadata, metadata) #1
27 !llvm.module.flags = !{!10, !11, !12, !1000}
30 !0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus_14, file: !1, producer: "clang version 12.0.0", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, imports: !3, splitDebugInlining: false, nameTableKind: None)
31 !1 = !DIFile(filename: "test.cpp", directory: "/")
34 !4 = !DIImportedEntity(tag: DW_TAG_imported_declaration, scope: !5, entity: !6, file: !9, line: 56)
35 !5 = !DINamespace(name: "std", scope: null)
36 !6 = !DIDerivedType(tag: DW_TAG_typedef, name: "max_align_t", file: !7, line: 24, baseType: !8)
37 !7 = !DIFile(filename: "clang/12.0.0/include/__stddef_max_align_t.h", directory: "/")
38 !8 = !DICompositeType(tag: DW_TAG_structure_type, file: !7, line: 19, size: 256, flags: DIFlagFwdDecl, identifier: "_ZTS11max_align_t")
39 !9 = !DIFile(filename: "include/c++/7.5.0/cstddef", directory: "")
40 !10 = !{i32 7, !"Dwarf Version", i32 4}
41 !11 = !{i32 2, !"Debug Info Version", i32 3}
42 !12 = !{i32 1, !"wchar_size", i32 4}
43 !13 = !{!"clang version 12.0.0"}
44 !14 = distinct !DISubprogram(name: "fun", linkageName: "_Z3funDn", scope: !1, file: !1, line: 20, type: !15, scopeLine: 20, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !20)
45 !15 = !DISubroutineType(types: !16)
47 !17 = !DIDerivedType(tag: DW_TAG_typedef, name: "nullptr_t", scope: !5, file: !18, line: 235, baseType: !19)
48 !18 = !DIFile(filename: "include/x86_64-linux-gnu/c++/7.5.0/bits/c++config.h", directory: "")
49 !19 = !DIBasicType(tag: DW_TAG_unspecified_type, name: "decltype(nullptr)")
51 !21 = !DILocalVariable(arg: 1, scope: !14, file: !1, line: 20, type: !17)
52 !22 = distinct !DIAssignID()
53 !23 = !DILocation(line: 0, scope: !14)
54 !28 = distinct !DIAssignID()
55 !29 = !DILocation(line: 20, column: 27, scope: !14)
56 !1000 = !{i32 7, !"debug-info-assignment-tracking", i1 true}