1; ModuleID = 'array.c' 2; 3; From (clang -g -c -O0): 4; 5; void f(int* p) { 6; p[0] = 42; 7; } 8; 9; int main(int argc, char** argv) { 10; int array[4] = { 0, 1, 2, 3 }; 11; f(array); 12; return array[0]; 13; } 14; 15; RUN: opt %s -O2 -S -o - | FileCheck %s 16; RUN: opt --try-experimental-debuginfo-iterators %s -O2 -S -o - | FileCheck %s 17; Test that we correctly lower dbg.declares for arrays. 18; 19; CHECK: define noundef i32 @main 20; CHECK: #dbg_value(i32 42, ![[ARRAY:[0-9]+]], !DIExpression(DW_OP_LLVM_fragment, 0, 32), 21; CHECK: ![[ARRAY]] = !DILocalVariable(name: "array",{{.*}} line: 6 22target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128" 23target triple = "x86_64-apple-macosx10.9.0" 24 25@main.array = private unnamed_addr constant [4 x i32] [i32 0, i32 1, i32 2, i32 3], align 16 26 27; Function Attrs: nounwind ssp uwtable 28define void @f(ptr %p) #0 !dbg !4 { 29entry: 30 %p.addr = alloca ptr, align 8 31 store ptr %p, ptr %p.addr, align 8 32 call void @llvm.dbg.declare(metadata ptr %p.addr, metadata !19, metadata !DIExpression()), !dbg !20 33 %0 = load ptr, ptr %p.addr, align 8, !dbg !21 34 store i32 42, ptr %0, align 4, !dbg !21 35 ret void, !dbg !22 36} 37 38; Function Attrs: nounwind readnone 39declare void @llvm.dbg.declare(metadata, metadata, metadata) #1 40 41; Function Attrs: nounwind ssp uwtable 42define i32 @main(i32 %argc, ptr %argv) #0 !dbg !10 { 43entry: 44 %retval = alloca i32, align 4 45 %argc.addr = alloca i32, align 4 46 %argv.addr = alloca ptr, align 8 47 %array = alloca [4 x i32], align 16 48 store i32 0, ptr %retval 49 store i32 %argc, ptr %argc.addr, align 4 50 call void @llvm.dbg.declare(metadata ptr %argc.addr, metadata !23, metadata !DIExpression()), !dbg !24 51 store ptr %argv, ptr %argv.addr, align 8 52 call void @llvm.dbg.declare(metadata ptr %argv.addr, metadata !25, metadata !DIExpression()), !dbg !24 53 call void @llvm.dbg.declare(metadata ptr %array, metadata !26, metadata !DIExpression()), !dbg !30 54 call void @llvm.memcpy.p0.p0.i64(ptr align 16 %array, ptr align 16 @main.array, i64 16, i1 false), !dbg !30 55 call void @f(ptr %array), !dbg !31 56 %0 = load i32, ptr %array, align 4, !dbg !32 57 ret i32 %0, !dbg !32 58} 59 60; Function Attrs: nounwind 61declare void @llvm.memcpy.p0.p0.i64(ptr nocapture, ptr nocapture readonly, i64, i1) #2 62 63attributes #0 = { nounwind ssp uwtable } 64attributes #1 = { nounwind readnone } 65attributes #2 = { nounwind } 66 67!llvm.dbg.cu = !{!0} 68!llvm.module.flags = !{!16, !17} 69!llvm.ident = !{!18} 70 71!0 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "clang version 3.5.0 ", isOptimized: false, emissionKind: FullDebug, file: !1, enums: !2, retainedTypes: !2, globals: !2, imports: !2) 72!1 = !DIFile(filename: "array.c", directory: "") 73!2 = !{} 74!4 = distinct !DISubprogram(name: "f", line: 1, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, unit: !0, scopeLine: 1, file: !1, scope: !5, type: !6, retainedNodes: !2) 75!5 = !DIFile(filename: "array.c", directory: "") 76!6 = !DISubroutineType(types: !7) 77!7 = !{null, !8} 78!8 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, baseType: !9) 79!9 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed) 80!10 = distinct !DISubprogram(name: "main", line: 5, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, unit: !0, scopeLine: 5, file: !1, scope: !5, type: !11, retainedNodes: !2) 81!11 = !DISubroutineType(types: !12) 82!12 = !{!9, !9, !13} 83!13 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, baseType: !14) 84!14 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, baseType: !15) 85!15 = !DIBasicType(tag: DW_TAG_base_type, name: "char", size: 8, align: 8, encoding: DW_ATE_signed_char) 86!16 = !{i32 2, !"Dwarf Version", i32 2} 87!17 = !{i32 1, !"Debug Info Version", i32 3} 88!18 = !{!"clang version 3.5.0 "} 89!19 = !DILocalVariable(name: "p", line: 1, arg: 1, scope: !4, file: !5, type: !8) 90!20 = !DILocation(line: 1, scope: !4) 91!21 = !DILocation(line: 2, scope: !4) 92!22 = !DILocation(line: 3, scope: !4) 93!23 = !DILocalVariable(name: "argc", line: 5, arg: 1, scope: !10, file: !5, type: !9) 94!24 = !DILocation(line: 5, scope: !10) 95!25 = !DILocalVariable(name: "argv", line: 5, arg: 2, scope: !10, file: !5, type: !13) 96!26 = !DILocalVariable(name: "array", line: 6, scope: !10, file: !5, type: !27) 97!27 = !DICompositeType(tag: DW_TAG_array_type, size: 128, align: 32, baseType: !9, elements: !28) 98!28 = !{!29} 99!29 = !DISubrange(count: 4) 100!30 = !DILocation(line: 6, scope: !10) 101!31 = !DILocation(line: 7, scope: !10) 102!32 = !DILocation(line: 8, scope: !10) 103