|  | ; RUN: opt -passes='sroa' -S -o - %s | FileCheck %s | 
|  | ; RUN: opt --try-experimental-debuginfo-iterators -passes='sroa' -S -o - %s | FileCheck %s | 
|  | ; Generated from clang -c  -O2 -g -target x86_64-pc-windows-msvc | 
|  | ; struct A { | 
|  | ;   int _Myval2; | 
|  | ;   A() : _Myval2() {} | 
|  | ; }; | 
|  | ; struct B { | 
|  | ;   double buffer[]; | 
|  | ; }; | 
|  | ; struct C { | 
|  | ;   C(int) {} | 
|  | ;   A _Mypair; | 
|  | ; }; | 
|  | ; int getPtr(); | 
|  | ; struct D { | 
|  | ;   C takePayload() { | 
|  | ;     C Tmp(getPtr()); | 
|  | ;     return Tmp; | 
|  | ;   } | 
|  | ; } Dd; | 
|  | ; ptr operator new(size_t, ptr); | 
|  | ; struct F { | 
|  | ;   F(D Err) : HasError() { | 
|  | ;     C *e = (C *)(ErrorStorage.buffer); | 
|  | ;     new (e) C(Err.takePayload()); | 
|  | ;   } | 
|  | ;   B ErrorStorage; | 
|  | ;   bool HasError; | 
|  | ; }; | 
|  | ; F fn2() { return Dd; } | 
|  | ; void fn3() { fn2(); } | 
|  | source_filename = "test.ll" | 
|  |  | 
|  | %struct.F = type { %struct.B, i8 } | 
|  | %struct.B = type { [0 x double], [8 x i8] } | 
|  |  | 
|  | define void @"\01?fn3@@YAXXZ"() local_unnamed_addr !dbg !6 { | 
|  | entry: | 
|  | %tmp = alloca %struct.F, align 8 | 
|  | call void @llvm.lifetime.start.p0(i64 16, ptr %tmp) | 
|  | call void @llvm.dbg.declare(metadata ptr %tmp, metadata !10, metadata !DIExpression()), !dbg !14 | 
|  | ; CHECK-NOT: !DIExpression(DW_OP_LLVM_fragment, 32, 96) | 
|  | ; CHECK: call void @llvm.dbg.value(metadata i32 0, metadata !10, metadata !DIExpression()) | 
|  | store i32 0, ptr %tmp, align 8 | 
|  | ret void | 
|  | } | 
|  |  | 
|  | ; Function Attrs: argmemonly nounwind | 
|  | declare void @llvm.lifetime.start.p0(i64, ptr nocapture) #0 | 
|  |  | 
|  | ; Function Attrs: nounwind readnone speculatable | 
|  | declare void @llvm.dbg.declare(metadata, metadata, metadata) #1 | 
|  |  | 
|  | attributes #0 = { argmemonly nounwind } | 
|  | attributes #1 = { nounwind readnone speculatable } | 
|  |  | 
|  | !llvm.dbg.cu = !{!0} | 
|  | !llvm.module.flags = !{!2, !3, !4, !5} | 
|  |  | 
|  | !0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !1, producer: "clang version 6.0.0 (trunk 319178) (llvm/trunk 319187)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug) | 
|  | !1 = !DIFile(filename: "test.cpp", directory: "/") | 
|  | !2 = !{i32 2, !"Dwarf Version", i32 4} | 
|  | !3 = !{i32 2, !"Debug Info Version", i32 3} | 
|  | !4 = !{i32 1, !"wchar_size", i32 2} | 
|  | !5 = !{i32 7, !"PIC Level", i32 2} | 
|  | !6 = distinct !DISubprogram(name: "fn3", linkageName: "\01?fn3@@YAXXZ", scope: !1, file: !1, line: 30, type: !7, isLocal: false, isDefinition: true, scopeLine: 30, flags: DIFlagPrototyped, isOptimized: true, unit: !0, retainedNodes: !9) | 
|  | !7 = !DISubroutineType(types: !8) | 
|  | !8 = !{null} | 
|  | !9 = !{} | 
|  | !10 = !DILocalVariable(name: "Tmp", scope: !11, file: !1, line: 16, type: !23) | 
|  | !11 = distinct !DISubprogram(name: "takePayload", linkageName: "\01?takePayload@D@@QEAA?AUC@@XZ", scope: !12, file: !1, line: 15, type: !7, isLocal: false, isDefinition: true, scopeLine: 15, flags: DIFlagPrototyped, isOptimized: true, unit: !0, declaration: !13, retainedNodes: !9) | 
|  | !12 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "D", file: !1, line: 14, size: 8, elements: !9, identifier: ".?AUD@@") | 
|  | !13 = !DISubprogram(name: "takePayload", linkageName: "\01?takePayload@D@@QEAA?AUC@@XZ", scope: !12, file: !1, line: 15, type: !7, isLocal: false, isDefinition: false, scopeLine: 15, flags: DIFlagPrototyped, isOptimized: true) | 
|  | !14 = !DILocation(line: 16, column: 7, scope: !11, inlinedAt: !15) | 
|  | !15 = distinct !DILocation(line: 24, column: 19, scope: !16, inlinedAt: !20) | 
|  | !16 = distinct !DILexicalBlock(scope: !17, file: !1, line: 22, column: 25) | 
|  | !17 = distinct !DISubprogram(name: "F", linkageName: "\01??0F@@QEAA@UD@@@Z", scope: !18, file: !1, line: 22, type: !7, isLocal: false, isDefinition: true, scopeLine: 22, flags: DIFlagPrototyped, isOptimized: true, unit: !0, declaration: !19, retainedNodes: !9) | 
|  | !18 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "F", file: !1, line: 21, size: 128, elements: !9, identifier: ".?AUF@@") | 
|  | !19 = !DISubprogram(name: "F", scope: !18, file: !1, line: 22, type: !7, isLocal: false, isDefinition: false, scopeLine: 22, flags: DIFlagPrototyped, isOptimized: true) | 
|  | !20 = distinct !DILocation(line: 29, column: 18, scope: !21, inlinedAt: !22) | 
|  | !21 = distinct !DISubprogram(name: "fn2", linkageName: "\01?fn2@@YA?AUF@@XZ", scope: !1, file: !1, line: 29, type: !7, isLocal: false, isDefinition: true, scopeLine: 29, flags: DIFlagPrototyped, isOptimized: true, unit: !0, retainedNodes: !9) | 
|  | !22 = distinct !DILocation(line: 30, column: 14, scope: !6) | 
|  | !23 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "C", file: !1, line: 9, size: 32, elements: !9, identifier: ".?AUC@@") |