1; RUN: opt -passes='sroa' < %s -S -o - | FileCheck %s 2; RUN: opt --try-experimental-debuginfo-iterators -passes='sroa' < %s -S -o - | FileCheck %s 3; 4; Test that recursively splitting an alloca updates the debug info correctly. 5; CHECK: %[[T:.*]] = load i64, ptr @t, align 8 6; CHECK: #dbg_value(i64 %[[T]], ![[Y:.*]], !DIExpression(DW_OP_LLVM_fragment, 0, 64), 7; CHECK: %[[T1:.*]] = load i64, ptr @t, align 8 8; CHECK: #dbg_value(i64 %[[T1]], ![[Y]], !DIExpression(DW_OP_LLVM_fragment, 64, 64), 9; CHECK: #dbg_value(i64 %[[T]], ![[R:.*]], !DIExpression(DW_OP_LLVM_fragment, 192, 64), 10; CHECK: #dbg_value(i64 %[[T1]], ![[R]], !DIExpression(DW_OP_LLVM_fragment, 256, 64), 11; 12; struct p { 13; __SIZE_TYPE__ s; 14; __SIZE_TYPE__ t; 15; }; 16; 17; struct r { 18; int i; 19; struct p x; 20; struct p y; 21; }; 22; 23; extern int call_me(struct r); 24; extern int maybe(); 25; extern __SIZE_TYPE__ t; 26; 27; int test() { 28; if (maybe()) 29; return 0; 30; struct p y = {t, t}; 31; struct r r = {.y = y}; 32; return call_me(r); 33; } 34 35; ModuleID = 'pr22393.cc' 36target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128" 37target triple = "x86_64-apple-darwin" 38 39%struct.p = type { i64, i64 } 40%struct.r = type { i32, %struct.p, %struct.p } 41 42@t = external global i64 43 44; Function Attrs: nounwind 45define i32 @_Z4testv() #0 !dbg !17 { 46entry: 47 %retval = alloca i32, align 4 48 %y = alloca %struct.p, align 8 49 %r = alloca %struct.r, align 8 50 %agg.tmp = alloca %struct.r, align 8 51 %call = call i32 @_Z5maybev(), !dbg !24 52 %tobool = icmp ne i32 %call, 0, !dbg !24 53 br i1 %tobool, label %if.then, label %if.end, !dbg !26 54 55if.then: ; preds = %entry 56 store i32 0, ptr %retval, !dbg !27 57 br label %return, !dbg !27 58 59if.end: ; preds = %entry 60 call void @llvm.dbg.declare(metadata ptr %y, metadata !28, metadata !29), !dbg !30 61 %0 = load i64, ptr @t, align 8, !dbg !30 62 store i64 %0, ptr %y, align 8, !dbg !30 63 %t = getelementptr inbounds %struct.p, ptr %y, i32 0, i32 1, !dbg !30 64 %1 = load i64, ptr @t, align 8, !dbg !30 65 store i64 %1, ptr %t, align 8, !dbg !30 66 call void @llvm.dbg.declare(metadata ptr %r, metadata !31, metadata !29), !dbg !32 67 store i32 0, ptr %r, align 4, !dbg !32 68 %x = getelementptr inbounds %struct.r, ptr %r, i32 0, i32 1, !dbg !32 69 store i64 0, ptr %x, align 8, !dbg !32 70 %t2 = getelementptr inbounds %struct.p, ptr %x, i32 0, i32 1, !dbg !32 71 store i64 0, ptr %t2, align 8, !dbg !32 72 %y3 = getelementptr inbounds %struct.r, ptr %r, i32 0, i32 2, !dbg !32 73 call void @llvm.memcpy.p0.p0.i64(ptr align 8 %y3, ptr align 8 %y, i64 16, i1 false), !dbg !32 74 call void @llvm.memcpy.p0.p0.i64(ptr align 8 %agg.tmp, ptr align 8 %r, i64 40, i1 false), !dbg !33 75 %call4 = call i32 @_Z7call_me1r(ptr byval(%struct.r) align 8 %agg.tmp), !dbg !33 76 store i32 %call4, ptr %retval, !dbg !33 77 br label %return, !dbg !33 78 79return: ; preds = %if.end, %if.then 80 %2 = load i32, ptr %retval, !dbg !34 81 ret i32 %2, !dbg !34 82} 83 84declare i32 @_Z5maybev() 85 86; Function Attrs: nounwind readnone 87declare void @llvm.dbg.declare(metadata, metadata, metadata) #2 88 89; Function Attrs: nounwind 90declare void @llvm.memcpy.p0.p0.i64(ptr nocapture, ptr nocapture readonly, i64, i1) #3 91 92declare i32 @_Z7call_me1r(ptr byval(%struct.r) align 8) 93 94attributes #0 = { nounwind } 95attributes #2 = { nounwind readnone } 96attributes #3 = { nounwind } 97 98!llvm.dbg.cu = !{!0} 99!llvm.module.flags = !{!21, !22} 100!llvm.ident = !{!23} 101 102!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) 103!1 = !DIFile(filename: "<stdin>", directory: "") 104!2 = !{} 105!3 = !{!4, !10} 106!4 = !DICompositeType(tag: DW_TAG_structure_type, name: "p", line: 3, size: 128, align: 64, file: !5, elements: !6, identifier: "_ZTS1p") 107!5 = !DIFile(filename: "pr22393.cc", directory: "") 108!6 = !{!7, !9} 109!7 = !DIDerivedType(tag: DW_TAG_member, name: "s", line: 4, size: 64, align: 64, file: !5, scope: !4, baseType: !8) 110!8 = !DIBasicType(tag: DW_TAG_base_type, name: "long unsigned int", size: 64, align: 64, encoding: DW_ATE_unsigned) 111!9 = !DIDerivedType(tag: DW_TAG_member, name: "t", line: 5, size: 64, align: 64, offset: 64, file: !5, scope: !4, baseType: !8) 112!10 = !DICompositeType(tag: DW_TAG_structure_type, name: "r", line: 8, size: 320, align: 64, file: !5, elements: !11, identifier: "_ZTS1r") 113!11 = !{!12, !14, !15} 114!12 = !DIDerivedType(tag: DW_TAG_member, name: "i", line: 9, size: 32, align: 32, file: !5, scope: !10, baseType: !13) 115!13 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed) 116!14 = !DIDerivedType(tag: DW_TAG_member, name: "x", line: 10, size: 128, align: 64, offset: 64, file: !5, scope: !10, baseType: !4) 117!15 = !DIDerivedType(tag: DW_TAG_member, name: "y", line: 11, size: 128, align: 64, offset: 192, file: !5, scope: !10, baseType: !4) 118!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) 119!18 = !DIFile(filename: "pr22393.cc", directory: "") 120!19 = !DISubroutineType(types: !20) 121!20 = !{!13} 122!21 = !{i32 2, !"Dwarf Version", i32 4} 123!22 = !{i32 2, !"Debug Info Version", i32 3} 124!23 = !{!"clang version 3.7.0 "} 125!24 = !DILocation(line: 19, scope: !25) 126!25 = distinct !DILexicalBlock(line: 19, column: 0, file: !5, scope: !17) 127!26 = !DILocation(line: 19, scope: !17) 128!27 = !DILocation(line: 20, scope: !25) 129!28 = !DILocalVariable(name: "y", line: 21, scope: !17, file: !18, type: !4) 130!29 = !DIExpression() 131!30 = !DILocation(line: 21, scope: !17) 132!31 = !DILocalVariable(name: "r", line: 22, scope: !17, file: !18, type: !10) 133!32 = !DILocation(line: 22, scope: !17) 134!33 = !DILocation(line: 23, scope: !17) 135!34 = !DILocation(line: 24, scope: !17) 136