1; RUN: opt -sroa < %s -S -o - | FileCheck %s 2; 3; Test that recursively splitting an alloca updates the debug info correctly. 4; CHECK: %[[T:.*]] = load i64, i64* @t, align 8 5; CHECK: call void @llvm.dbg.value(metadata i64 %[[T]], metadata ![[Y:.*]], metadata !DIExpression(DW_OP_LLVM_fragment, 0, 64)) 6; CHECK: %[[T1:.*]] = load i64, i64* @t, align 8 7; CHECK: call void @llvm.dbg.value(metadata i64 %[[T1]], metadata ![[Y]], metadata !DIExpression(DW_OP_LLVM_fragment, 64, 64)) 8; CHECK: call void @llvm.dbg.value(metadata i64 %[[T]], metadata ![[R:.*]], metadata !DIExpression(DW_OP_LLVM_fragment, 192, 64)) 9; CHECK: call void @llvm.dbg.value(metadata i64 %[[T1]], metadata ![[R]], metadata !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 i64 42 43; Function Attrs: nounwind 44define i32 @_Z4testv() #0 !dbg !17 { 45entry: 46 %retval = alloca i32, align 4 47 %y = alloca %struct.p, align 8 48 %r = alloca %struct.r, align 8 49 %agg.tmp = alloca %struct.r, align 8 50 %call = call i32 @_Z5maybev(), !dbg !24 51 %tobool = icmp ne i32 %call, 0, !dbg !24 52 br i1 %tobool, label %if.then, label %if.end, !dbg !26 53 54if.then: ; preds = %entry 55 store i32 0, i32* %retval, !dbg !27 56 br label %return, !dbg !27 57 58if.end: ; preds = %entry 59 call void @llvm.dbg.declare(metadata %struct.p* %y, metadata !28, metadata !29), !dbg !30 60 %s = getelementptr inbounds %struct.p, %struct.p* %y, i32 0, i32 0, !dbg !30 61 %0 = load i64, i64* @t, align 8, !dbg !30 62 store i64 %0, i64* %s, align 8, !dbg !30 63 %t = getelementptr inbounds %struct.p, %struct.p* %y, i32 0, i32 1, !dbg !30 64 %1 = load i64, i64* @t, align 8, !dbg !30 65 store i64 %1, i64* %t, align 8, !dbg !30 66 call void @llvm.dbg.declare(metadata %struct.r* %r, metadata !31, metadata !29), !dbg !32 67 %i = getelementptr inbounds %struct.r, %struct.r* %r, i32 0, i32 0, !dbg !32 68 store i32 0, i32* %i, align 4, !dbg !32 69 %x = getelementptr inbounds %struct.r, %struct.r* %r, i32 0, i32 1, !dbg !32 70 %s1 = getelementptr inbounds %struct.p, %struct.p* %x, i32 0, i32 0, !dbg !32 71 store i64 0, i64* %s1, align 8, !dbg !32 72 %t2 = getelementptr inbounds %struct.p, %struct.p* %x, i32 0, i32 1, !dbg !32 73 store i64 0, i64* %t2, align 8, !dbg !32 74 %y3 = getelementptr inbounds %struct.r, %struct.r* %r, i32 0, i32 2, !dbg !32 75 %2 = bitcast %struct.p* %y3 to i8*, !dbg !32 76 %3 = bitcast %struct.p* %y to i8*, !dbg !32 77 call void @llvm.memcpy.p0i8.p0i8.i64(i8* align 8 %2, i8* align 8 %3, i64 16, i1 false), !dbg !32 78 %4 = bitcast %struct.r* %agg.tmp to i8*, !dbg !33 79 %5 = bitcast %struct.r* %r to i8*, !dbg !33 80 call void @llvm.memcpy.p0i8.p0i8.i64(i8* align 8 %4, i8* align 8 %5, i64 40, i1 false), !dbg !33 81 %call4 = call i32 @_Z7call_me1r(%struct.r* byval align 8 %agg.tmp), !dbg !33 82 store i32 %call4, i32* %retval, !dbg !33 83 br label %return, !dbg !33 84 85return: ; preds = %if.end, %if.then 86 %6 = load i32, i32* %retval, !dbg !34 87 ret i32 %6, !dbg !34 88} 89 90declare i32 @_Z5maybev() 91 92; Function Attrs: nounwind readnone 93declare void @llvm.dbg.declare(metadata, metadata, metadata) #2 94 95; Function Attrs: nounwind 96declare void @llvm.memcpy.p0i8.p0i8.i64(i8* nocapture, i8* nocapture readonly, i64, i1) #3 97 98declare i32 @_Z7call_me1r(%struct.r* byval align 8) 99 100attributes #0 = { nounwind } 101attributes #2 = { nounwind readnone } 102attributes #3 = { nounwind } 103 104!llvm.dbg.cu = !{!0} 105!llvm.module.flags = !{!21, !22} 106!llvm.ident = !{!23} 107 108!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) 109!1 = !DIFile(filename: "<stdin>", directory: "") 110!2 = !{} 111!3 = !{!4, !10} 112!4 = !DICompositeType(tag: DW_TAG_structure_type, name: "p", line: 3, size: 128, align: 64, file: !5, elements: !6, identifier: "_ZTS1p") 113!5 = !DIFile(filename: "pr22393.cc", directory: "") 114!6 = !{!7, !9} 115!7 = !DIDerivedType(tag: DW_TAG_member, name: "s", line: 4, size: 64, align: 64, file: !5, scope: !4, baseType: !8) 116!8 = !DIBasicType(tag: DW_TAG_base_type, name: "long unsigned int", size: 64, align: 64, encoding: DW_ATE_unsigned) 117!9 = !DIDerivedType(tag: DW_TAG_member, name: "t", line: 5, size: 64, align: 64, offset: 64, file: !5, scope: !4, baseType: !8) 118!10 = !DICompositeType(tag: DW_TAG_structure_type, name: "r", line: 8, size: 320, align: 64, file: !5, elements: !11, identifier: "_ZTS1r") 119!11 = !{!12, !14, !15} 120!12 = !DIDerivedType(tag: DW_TAG_member, name: "i", line: 9, size: 32, align: 32, file: !5, scope: !10, baseType: !13) 121!13 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed) 122!14 = !DIDerivedType(tag: DW_TAG_member, name: "x", line: 10, size: 128, align: 64, offset: 64, file: !5, scope: !10, baseType: !4) 123!15 = !DIDerivedType(tag: DW_TAG_member, name: "y", line: 11, size: 128, align: 64, offset: 192, file: !5, scope: !10, baseType: !4) 124!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) 125!18 = !DIFile(filename: "pr22393.cc", directory: "") 126!19 = !DISubroutineType(types: !20) 127!20 = !{!13} 128!21 = !{i32 2, !"Dwarf Version", i32 4} 129!22 = !{i32 2, !"Debug Info Version", i32 3} 130!23 = !{!"clang version 3.7.0 "} 131!24 = !DILocation(line: 19, scope: !25) 132!25 = distinct !DILexicalBlock(line: 19, column: 0, file: !5, scope: !17) 133!26 = !DILocation(line: 19, scope: !17) 134!27 = !DILocation(line: 20, scope: !25) 135!28 = !DILocalVariable(name: "y", line: 21, scope: !17, file: !18, type: !4) 136!29 = !DIExpression() 137!30 = !DILocation(line: 21, scope: !17) 138!31 = !DILocalVariable(name: "r", line: 22, scope: !17, file: !18, type: !10) 139!32 = !DILocation(line: 22, scope: !17) 140!33 = !DILocation(line: 23, scope: !17) 141!34 = !DILocation(line: 24, scope: !17) 142