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]], i64 0, metadata ![[Y:.*]], metadata ![[P1:.*]]) 6; CHECK: %[[T1:.*]] = load i64, i64* @t, align 8 7; CHECK: call void @llvm.dbg.value(metadata i64 %[[T1]], i64 0, metadata ![[Y]], metadata ![[P2:.*]]) 8; CHECK: call void @llvm.dbg.value(metadata i64 %[[T]], i64 0, metadata ![[R:.*]], metadata ![[P3:.*]]) 9; CHECK: call void @llvm.dbg.value(metadata i64 %[[T1]], i64 0, metadata ![[R]], metadata ![[P4:.*]]) 10; CHECK: ![[P1]] = !DIExpression(DW_OP_bit_piece, 0, 64) 11; CHECK: ![[P2]] = !DIExpression(DW_OP_bit_piece, 64, 64) 12; CHECK: ![[P3]] = !DIExpression(DW_OP_bit_piece, 192, 64) 13; CHECK: ![[P4]] = !DIExpression(DW_OP_bit_piece, 256, 64) 14; 15; struct p { 16; __SIZE_TYPE__ s; 17; __SIZE_TYPE__ t; 18; }; 19; 20; struct r { 21; int i; 22; struct p x; 23; struct p y; 24; }; 25; 26; extern int call_me(struct r); 27; extern int maybe(); 28; extern __SIZE_TYPE__ t; 29; 30; int test() { 31; if (maybe()) 32; return 0; 33; struct p y = {t, t}; 34; struct r r = {.y = y}; 35; return call_me(r); 36; } 37 38; ModuleID = 'pr22393.cc' 39target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128" 40target triple = "x86_64-apple-darwin" 41 42%struct.p = type { i64, i64 } 43%struct.r = type { i32, %struct.p, %struct.p } 44 45@t = external global i64 46 47; Function Attrs: nounwind 48define i32 @_Z4testv() #0 !dbg !17 { 49entry: 50 %retval = alloca i32, align 4 51 %y = alloca %struct.p, align 8 52 %r = alloca %struct.r, align 8 53 %agg.tmp = alloca %struct.r, align 8 54 %call = call i32 @_Z5maybev(), !dbg !24 55 %tobool = icmp ne i32 %call, 0, !dbg !24 56 br i1 %tobool, label %if.then, label %if.end, !dbg !26 57 58if.then: ; preds = %entry 59 store i32 0, i32* %retval, !dbg !27 60 br label %return, !dbg !27 61 62if.end: ; preds = %entry 63 call void @llvm.dbg.declare(metadata %struct.p* %y, metadata !28, metadata !29), !dbg !30 64 %s = getelementptr inbounds %struct.p, %struct.p* %y, i32 0, i32 0, !dbg !30 65 %0 = load i64, i64* @t, align 8, !dbg !30 66 store i64 %0, i64* %s, align 8, !dbg !30 67 %t = getelementptr inbounds %struct.p, %struct.p* %y, i32 0, i32 1, !dbg !30 68 %1 = load i64, i64* @t, align 8, !dbg !30 69 store i64 %1, i64* %t, align 8, !dbg !30 70 call void @llvm.dbg.declare(metadata %struct.r* %r, metadata !31, metadata !29), !dbg !32 71 %i = getelementptr inbounds %struct.r, %struct.r* %r, i32 0, i32 0, !dbg !32 72 store i32 0, i32* %i, align 4, !dbg !32 73 %x = getelementptr inbounds %struct.r, %struct.r* %r, i32 0, i32 1, !dbg !32 74 %s1 = getelementptr inbounds %struct.p, %struct.p* %x, i32 0, i32 0, !dbg !32 75 store i64 0, i64* %s1, align 8, !dbg !32 76 %t2 = getelementptr inbounds %struct.p, %struct.p* %x, i32 0, i32 1, !dbg !32 77 store i64 0, i64* %t2, align 8, !dbg !32 78 %y3 = getelementptr inbounds %struct.r, %struct.r* %r, i32 0, i32 2, !dbg !32 79 %2 = bitcast %struct.p* %y3 to i8*, !dbg !32 80 %3 = bitcast %struct.p* %y to i8*, !dbg !32 81 call void @llvm.memcpy.p0i8.p0i8.i64(i8* %2, i8* %3, i64 16, i32 8, i1 false), !dbg !32 82 %4 = bitcast %struct.r* %agg.tmp to i8*, !dbg !33 83 %5 = bitcast %struct.r* %r to i8*, !dbg !33 84 call void @llvm.memcpy.p0i8.p0i8.i64(i8* %4, i8* %5, i64 40, i32 8, i1 false), !dbg !33 85 %call4 = call i32 @_Z7call_me1r(%struct.r* byval align 8 %agg.tmp), !dbg !33 86 store i32 %call4, i32* %retval, !dbg !33 87 br label %return, !dbg !33 88 89return: ; preds = %if.end, %if.then 90 %6 = load i32, i32* %retval, !dbg !34 91 ret i32 %6, !dbg !34 92} 93 94declare i32 @_Z5maybev() 95 96; Function Attrs: nounwind readnone 97declare void @llvm.dbg.declare(metadata, metadata, metadata) #2 98 99; Function Attrs: nounwind 100declare void @llvm.memcpy.p0i8.p0i8.i64(i8* nocapture, i8* nocapture readonly, i64, i32, i1) #3 101 102declare i32 @_Z7call_me1r(%struct.r* byval align 8) 103 104attributes #0 = { nounwind } 105attributes #2 = { nounwind readnone } 106attributes #3 = { nounwind } 107 108!llvm.dbg.cu = !{!0} 109!llvm.module.flags = !{!21, !22} 110!llvm.ident = !{!23} 111 112!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) 113!1 = !DIFile(filename: "<stdin>", directory: "") 114!2 = !{} 115!3 = !{!4, !10} 116!4 = !DICompositeType(tag: DW_TAG_structure_type, name: "p", line: 3, size: 128, align: 64, file: !5, elements: !6, identifier: "_ZTS1p") 117!5 = !DIFile(filename: "pr22393.cc", directory: "") 118!6 = !{!7, !9} 119!7 = !DIDerivedType(tag: DW_TAG_member, name: "s", line: 4, size: 64, align: 64, file: !5, scope: !4, baseType: !8) 120!8 = !DIBasicType(tag: DW_TAG_base_type, name: "long unsigned int", size: 64, align: 64, encoding: DW_ATE_unsigned) 121!9 = !DIDerivedType(tag: DW_TAG_member, name: "t", line: 5, size: 64, align: 64, offset: 64, file: !5, scope: !4, baseType: !8) 122!10 = !DICompositeType(tag: DW_TAG_structure_type, name: "r", line: 8, size: 320, align: 64, file: !5, elements: !11, identifier: "_ZTS1r") 123!11 = !{!12, !14, !15} 124!12 = !DIDerivedType(tag: DW_TAG_member, name: "i", line: 9, size: 32, align: 32, file: !5, scope: !10, baseType: !13) 125!13 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed) 126!14 = !DIDerivedType(tag: DW_TAG_member, name: "x", line: 10, size: 128, align: 64, offset: 64, file: !5, scope: !10, baseType: !4) 127!15 = !DIDerivedType(tag: DW_TAG_member, name: "y", line: 11, size: 128, align: 64, offset: 192, file: !5, scope: !10, baseType: !4) 128!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, variables: !2) 129!18 = !DIFile(filename: "pr22393.cc", directory: "") 130!19 = !DISubroutineType(types: !20) 131!20 = !{!13} 132!21 = !{i32 2, !"Dwarf Version", i32 4} 133!22 = !{i32 2, !"Debug Info Version", i32 3} 134!23 = !{!"clang version 3.7.0 "} 135!24 = !DILocation(line: 19, scope: !25) 136!25 = distinct !DILexicalBlock(line: 19, column: 0, file: !5, scope: !17) 137!26 = !DILocation(line: 19, scope: !17) 138!27 = !DILocation(line: 20, scope: !25) 139!28 = !DILocalVariable(name: "y", line: 21, scope: !17, file: !18, type: !4) 140!29 = !DIExpression() 141!30 = !DILocation(line: 21, scope: !17) 142!31 = !DILocalVariable(name: "r", line: 22, scope: !17, file: !18, type: !10) 143!32 = !DILocation(line: 22, scope: !17) 144!33 = !DILocation(line: 23, scope: !17) 145!34 = !DILocation(line: 24, scope: !17) 146