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1; RUN: opt -passes='sroa' < %s -S -o - | FileCheck %s2;3; Test that recursively splitting an alloca updates the debug info correctly.4; CHECK: %[[T:.*]] = load i64, ptr @t, align 85; CHECK: #dbg_value(i64 %[[T]], ![[Y:.*]], !DIExpression(DW_OP_LLVM_fragment, 0, 64),6; CHECK: %[[T1:.*]] = load i64, ptr @t, align 87; CHECK: #dbg_value(i64 %[[T1]], ![[Y]], !DIExpression(DW_OP_LLVM_fragment, 64, 64),8; CHECK: #dbg_value(i64 %[[T]], ![[R:.*]], !DIExpression(DW_OP_LLVM_fragment, 192, 64),9; CHECK: #dbg_value(i64 %[[T1]], ![[R]], !DIExpression(DW_OP_LLVM_fragment, 256, 64),10;11; struct p {12; __SIZE_TYPE__ s;13; __SIZE_TYPE__ t;14; };15;16; struct r {17; int i;18; struct p x;19; struct p y;20; };21;22; extern int call_me(struct r);23; extern int maybe();24; extern __SIZE_TYPE__ t;25;26; int test() {27; if (maybe())28; return 0;29; struct p y = {t, t};30; struct r r = {.y = y};31; return call_me(r);32; }33 34; ModuleID = 'pr22393.cc'35target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"36target triple = "x86_64-apple-darwin"37 38%struct.p = type { i64, i64 }39%struct.r = type { i32, %struct.p, %struct.p }40 41@t = external global i6442 43; Function Attrs: nounwind44define i32 @_Z4testv() #0 !dbg !17 {45entry:46 %retval = alloca i32, align 447 %y = alloca %struct.p, align 848 %r = alloca %struct.r, align 849 %agg.tmp = alloca %struct.r, align 850 %call = call i32 @_Z5maybev(), !dbg !2451 %tobool = icmp ne i32 %call, 0, !dbg !2452 br i1 %tobool, label %if.then, label %if.end, !dbg !2653 54if.then: ; preds = %entry55 store i32 0, ptr %retval, !dbg !2756 br label %return, !dbg !2757 58if.end: ; preds = %entry59 call void @llvm.dbg.declare(metadata ptr %y, metadata !28, metadata !29), !dbg !3060 %0 = load i64, ptr @t, align 8, !dbg !3061 store i64 %0, ptr %y, align 8, !dbg !3062 %t = getelementptr inbounds %struct.p, ptr %y, i32 0, i32 1, !dbg !3063 %1 = load i64, ptr @t, align 8, !dbg !3064 store i64 %1, ptr %t, align 8, !dbg !3065 call void @llvm.dbg.declare(metadata ptr %r, metadata !31, metadata !29), !dbg !3266 store i32 0, ptr %r, align 4, !dbg !3267 %x = getelementptr inbounds %struct.r, ptr %r, i32 0, i32 1, !dbg !3268 store i64 0, ptr %x, align 8, !dbg !3269 %t2 = getelementptr inbounds %struct.p, ptr %x, i32 0, i32 1, !dbg !3270 store i64 0, ptr %t2, align 8, !dbg !3271 %y3 = getelementptr inbounds %struct.r, ptr %r, i32 0, i32 2, !dbg !3272 call void @llvm.memcpy.p0.p0.i64(ptr align 8 %y3, ptr align 8 %y, i64 16, i1 false), !dbg !3273 call void @llvm.memcpy.p0.p0.i64(ptr align 8 %agg.tmp, ptr align 8 %r, i64 40, i1 false), !dbg !3374 %call4 = call i32 @_Z7call_me1r(ptr byval(%struct.r) align 8 %agg.tmp), !dbg !3375 store i32 %call4, ptr %retval, !dbg !3376 br label %return, !dbg !3377 78return: ; preds = %if.end, %if.then79 %2 = load i32, ptr %retval, !dbg !3480 ret i32 %2, !dbg !3481}82 83declare i32 @_Z5maybev()84 85; Function Attrs: nounwind readnone86declare void @llvm.dbg.declare(metadata, metadata, metadata) #287 88; Function Attrs: nounwind89declare void @llvm.memcpy.p0.p0.i64(ptr nocapture, ptr nocapture readonly, i64, i1) #390 91declare i32 @_Z7call_me1r(ptr byval(%struct.r) align 8)92 93attributes #0 = { nounwind }94attributes #2 = { nounwind readnone }95attributes #3 = { nounwind }96 97!llvm.dbg.cu = !{!0}98!llvm.module.flags = !{!21, !22}99!llvm.ident = !{!23}100 101!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, producer: "clang version 3.7.0 ", isOptimized: false, emissionKind: FullDebug, file: !1, enums: !2, retainedTypes: !3, globals: !2, imports: !2)102!1 = !DIFile(filename: "<stdin>", directory: "")103!2 = !{}104!3 = !{!4, !10}105!4 = !DICompositeType(tag: DW_TAG_structure_type, name: "p", line: 3, size: 128, align: 64, file: !5, elements: !6, identifier: "_ZTS1p")106!5 = !DIFile(filename: "pr22393.cc", directory: "")107!6 = !{!7, !9}108!7 = !DIDerivedType(tag: DW_TAG_member, name: "s", line: 4, size: 64, align: 64, file: !5, scope: !4, baseType: !8)109!8 = !DIBasicType(tag: DW_TAG_base_type, name: "long unsigned int", size: 64, align: 64, encoding: DW_ATE_unsigned)110!9 = !DIDerivedType(tag: DW_TAG_member, name: "t", line: 5, size: 64, align: 64, offset: 64, file: !5, scope: !4, baseType: !8)111!10 = !DICompositeType(tag: DW_TAG_structure_type, name: "r", line: 8, size: 320, align: 64, file: !5, elements: !11, identifier: "_ZTS1r")112!11 = !{!12, !14, !15}113!12 = !DIDerivedType(tag: DW_TAG_member, name: "i", line: 9, size: 32, align: 32, file: !5, scope: !10, baseType: !13)114!13 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed)115!14 = !DIDerivedType(tag: DW_TAG_member, name: "x", line: 10, size: 128, align: 64, offset: 64, file: !5, scope: !10, baseType: !4)116!15 = !DIDerivedType(tag: DW_TAG_member, name: "y", line: 11, size: 128, align: 64, offset: 192, file: !5, scope: !10, baseType: !4)117!17 = distinct !DISubprogram(name: "test", linkageName: "_Z4testv", line: 18, isLocal: false, isDefinition: true, flags: DIFlagPrototyped, isOptimized: false, unit: !0, scopeLine: 18, file: !5, scope: !18, type: !19, retainedNodes: !2)118!18 = !DIFile(filename: "pr22393.cc", directory: "")119!19 = !DISubroutineType(types: !20)120!20 = !{!13}121!21 = !{i32 2, !"Dwarf Version", i32 4}122!22 = !{i32 2, !"Debug Info Version", i32 3}123!23 = !{!"clang version 3.7.0 "}124!24 = !DILocation(line: 19, scope: !25)125!25 = distinct !DILexicalBlock(line: 19, column: 0, file: !5, scope: !17)126!26 = !DILocation(line: 19, scope: !17)127!27 = !DILocation(line: 20, scope: !25)128!28 = !DILocalVariable(name: "y", line: 21, scope: !17, file: !18, type: !4)129!29 = !DIExpression()130!30 = !DILocation(line: 21, scope: !17)131!31 = !DILocalVariable(name: "r", line: 22, scope: !17, file: !18, type: !10)132!32 = !DILocation(line: 22, scope: !17)133!33 = !DILocation(line: 23, scope: !17)134!34 = !DILocation(line: 24, scope: !17)135