; RUN: opt %s -S -passes=sroa -o - | FileCheck %s ; RUN: opt --try-experimental-debuginfo-iterators %s -S -passes=sroa -o - | FileCheck %s ;; Ensure that only the value-expression gets fragment info; that the ;; address-expression remains untouched. ;; $ cat test.cpp ;; class a { ;; float b[4]; ;; }; ;; class c { ;; a m_fn1() const; ;; void d() const; ;; }; ;; void c::d() const { a e = m_fn1(); } ;; ;; Generated by grabbing IR before sroa in: ;; $ clang++ -O2 -g -c test.cpp -Xclang -fexperimental-assignment-tracking ; CHECK: %call = call ; CHECK-NEXT: %0 = extractvalue { <2 x float>, <2 x float> } %call, 0 ; CHECK-NEXT: call void @llvm.dbg.value(metadata <2 x float> %0, metadata ![[var:[0-9]+]], metadata !DIExpression(DW_OP_LLVM_fragment, 0, 64)) ; CHECK-NEXT: %1 = extractvalue { <2 x float>, <2 x float> } %call, 1 ; CHECK-NEXT: call void @llvm.dbg.value(metadata <2 x float> %1, metadata ![[var]], metadata !DIExpression(DW_OP_LLVM_fragment, 64, 64)) %class.c = type { i8 } %class.a = type { [4 x float] } ; Function Attrs: uwtable define dso_local void @_ZNK1c1dEv(ptr %this) #0 align 2 !dbg !7 { entry: %this.addr = alloca ptr, align 8, !DIAssignID !29 call void @llvm.dbg.assign(metadata i1 undef, metadata !26, metadata !DIExpression(), metadata !29, metadata ptr %this.addr, metadata !DIExpression()), !dbg !30 %e = alloca %class.a, align 4, !DIAssignID !31 call void @llvm.dbg.assign(metadata i1 undef, metadata !28, metadata !DIExpression(), metadata !31, metadata ptr %e, metadata !DIExpression()), !dbg !30 store ptr %this, ptr %this.addr, align 8, !DIAssignID !36 call void @llvm.dbg.assign(metadata ptr %this, metadata !26, metadata !DIExpression(), metadata !36, metadata ptr %this.addr, metadata !DIExpression()), !dbg !30 %this1 = load ptr, ptr %this.addr, align 8 %0 = bitcast ptr %e to ptr, !dbg !37 %call = call { <2 x float>, <2 x float> } @_ZNK1c5m_fn1Ev(ptr %this1), !dbg !38 %coerce.dive = getelementptr inbounds %class.a, ptr %e, i32 0, i32 0, !dbg !38 %1 = bitcast ptr %coerce.dive to ptr, !dbg !38 %2 = getelementptr inbounds { <2 x float>, <2 x float> }, ptr %1, i32 0, i32 0, !dbg !38 %3 = extractvalue { <2 x float>, <2 x float> } %call, 0, !dbg !38 store <2 x float> %3, ptr %2, align 4, !dbg !38, !DIAssignID !39 call void @llvm.dbg.assign(metadata <2 x float> %3, metadata !28, metadata !DIExpression(DW_OP_LLVM_fragment, 0, 64), metadata !39, metadata ptr %2, metadata !DIExpression()), !dbg !30 %4 = getelementptr inbounds { <2 x float>, <2 x float> }, ptr %1, i32 0, i32 1, !dbg !38 %5 = extractvalue { <2 x float>, <2 x float> } %call, 1, !dbg !38 store <2 x float> %5, ptr %4, align 4, !dbg !38, !DIAssignID !40 call void @llvm.dbg.assign(metadata <2 x float> %5, metadata !28, metadata !DIExpression(DW_OP_LLVM_fragment, 64, 64), metadata !40, metadata ptr %4, metadata !DIExpression()), !dbg !30 %6 = bitcast ptr %e to ptr, !dbg !41 ret void, !dbg !41 } declare void @llvm.dbg.declare(metadata, metadata, metadata) #1 declare dso_local { <2 x float>, <2 x float> } @_ZNK1c5m_fn1Ev(ptr) #3 declare void @llvm.dbg.assign(metadata, metadata, metadata, metadata, metadata, metadata) #1 !llvm.dbg.cu = !{!0} !llvm.module.flags = !{!3, !4, !5, !1000} !llvm.ident = !{!6} !0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !1, producer: "clang version 12.0.0", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, splitDebugInlining: false, nameTableKind: None) !1 = !DIFile(filename: "test.cpp", directory: "/") !2 = !{} !3 = !{i32 7, !"Dwarf Version", i32 4} !4 = !{i32 2, !"Debug Info Version", i32 3} !5 = !{i32 1, !"wchar_size", i32 4} !6 = !{!"clang version 12.0.0"} !7 = distinct !DISubprogram(name: "d", linkageName: "_ZNK1c1dEv", scope: !8, file: !1, line: 8, type: !23, scopeLine: 8, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, declaration: !22, retainedNodes: !25) !8 = distinct !DICompositeType(tag: DW_TAG_class_type, name: "c", file: !1, line: 4, size: 8, flags: DIFlagTypePassByValue, elements: !9, identifier: "_ZTS1c") !9 = !{!10, !22} !10 = !DISubprogram(name: "m_fn1", linkageName: "_ZNK1c5m_fn1Ev", scope: !8, file: !1, line: 5, type: !11, scopeLine: 5, flags: DIFlagPrototyped, spFlags: DISPFlagOptimized) !11 = !DISubroutineType(types: !12) !12 = !{!13, !20} !13 = distinct !DICompositeType(tag: DW_TAG_class_type, name: "a", file: !1, line: 1, size: 128, flags: DIFlagTypePassByValue, elements: !14, identifier: "_ZTS1a") !14 = !{!15} !15 = !DIDerivedType(tag: DW_TAG_member, name: "b", scope: !13, file: !1, line: 2, baseType: !16, size: 128) !16 = !DICompositeType(tag: DW_TAG_array_type, baseType: !17, size: 128, elements: !18) !17 = !DIBasicType(name: "float", size: 32, encoding: DW_ATE_float) !18 = !{!19} !19 = !DISubrange(count: 4) !20 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !21, size: 64, flags: DIFlagArtificial | DIFlagObjectPointer) !21 = !DIDerivedType(tag: DW_TAG_const_type, baseType: !8) !22 = !DISubprogram(name: "d", linkageName: "_ZNK1c1dEv", scope: !8, file: !1, line: 6, type: !23, scopeLine: 6, flags: DIFlagPrototyped, spFlags: DISPFlagOptimized) !23 = !DISubroutineType(types: !24) !24 = !{null, !20} !25 = !{!26, !28} !26 = !DILocalVariable(name: "this", arg: 1, scope: !7, type: !27, flags: DIFlagArtificial | DIFlagObjectPointer) !27 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !21, size: 64) !28 = !DILocalVariable(name: "e", scope: !7, file: !1, line: 8, type: !13) !29 = distinct !DIAssignID() !30 = !DILocation(line: 0, scope: !7) !31 = distinct !DIAssignID() !36 = distinct !DIAssignID() !37 = !DILocation(line: 8, column: 21, scope: !7) !38 = !DILocation(line: 8, column: 27, scope: !7) !39 = distinct !DIAssignID() !40 = distinct !DIAssignID() !41 = !DILocation(line: 8, column: 36, scope: !7) !1000 = !{i32 7, !"debug-info-assignment-tracking", i1 true}