1 ; REQUIRES: object-emission 2 ; RUN: %llc_dwarf -accel-tables=Dwarf -filetype=obj -o %t < %s 3 ; RUN: llvm-dwarfdump -debug-names %t | FileCheck %s 4 ; RUN: llvm-dwarfdump -debug-names -verify %t | FileCheck --check-prefix=VERIFY %s 5 6 ; Generated from the following C code using 7 ; clang -S -emit-llvm -g col.c 8 ; 9 ; These names were carefully chosen to cause hash collisions. Each type-variable 10 ; pair will hash to the same value. The also happen to demonstrate a flaw in the 11 ; DWARF v5 hash function: A copy constructor and an assignment operator for a 12 ; class will always hash to the same value. 13 ; 14 ; typedef void *_ZN4lldb7SBBlockaSERKS0_; 15 ; _ZN4lldb7SBBlockaSERKS0_ _ZN4lldb7SBBlockC1ERKS0_; 16 ; typedef void *_ZN4lldb7SBErroraSERKS0_; 17 ; _ZN4lldb7SBErroraSERKS0_ _ZN4lldb7SBErrorC1ERKS0_; 18 ; typedef void *_ZN4lldb7SBValueaSERKS0_; 19 ; _ZN4lldb7SBValueaSERKS0_ _ZN4lldb7SBValueC1ERKS0_; 20 ; typedef void *_ZL11numCommutes; 21 ; _ZL11numCommutes _ZL11NumCommutes; 22 ; typedef void *_ZL9NumRemats; 23 ; _ZL9NumRemats _ZL9NumReMats; 24 25 ; Check that we have the right amount of hashes and names. 26 ; CHECK: Bucket count: 5 27 ; CHECK: Name count: 10 28 29 ; Check that all the names are present in the output 30 ; CHECK: Bucket 0 31 ; CHECK: Hash: 0xF8CF70D 32 ; CHECK-NEXT:String: 0x{{[0-9a-f]*}} "_ZN4lldb7SBBlockaSERKS0_" 33 ; CHECK: Hash: 0xF8CF70D 34 ; CHECK-NEXT:String: 0x{{[0-9a-f]*}} "_ZN4lldb7SBBlockC1ERKS0_" 35 ; CHECK: Hash: 0x135A482C 36 ; CHECK-NEXT:String: 0x{{[0-9a-f]*}} "_ZN4lldb7SBErroraSERKS0_" 37 ; CHECK: Hash: 0x135A482C 38 ; CHECK-NEXT:String: 0x{{[0-9a-f]*}} "_ZN4lldb7SBErrorC1ERKS0_" 39 ; CHECK-NOT: String: 40 ; CHECK: Bucket 1 41 ; CHECK-NEXT: EMPTY 42 ; CHECK: Bucket 2 43 ; CHECK: Hash: 0x2841B989 44 ; CHECK-NEXT:String: 0x{{[0-9a-f]*}} "_ZL11numCommutes" 45 ; CHECK: Hash: 0x2841B989 46 ; CHECK-NEXT:String: 0x{{[0-9a-f]*}} "_ZL11NumCommutes" 47 ; CHECK: Hash: 0x3E190F5F 48 ; CHECK-NEXT:String: 0x{{[0-9a-f]*}} "_ZL9NumRemats" 49 ; CHECK: Hash: 0x3E190F5F 50 ; CHECK-NEXT:String: 0x{{[0-9a-f]*}} "_ZL9NumReMats" 51 ; CHECK-NOT: String: 52 ; CHECK: Bucket 3 53 ; CHECK: Hash: 0x2642207F 54 ; CHECK-NEXT:String: 0x{{[0-9a-f]*}} "_ZN4lldb7SBValueaSERKS0_" 55 ; CHECK: Hash: 0x2642207F 56 ; CHECK-NEXT:String: 0x{{[0-9a-f]*}} "_ZN4lldb7SBValueC1ERKS0_" 57 ; CHECK-NOT: String: 58 ; CHECK: Bucket 4 59 ; CHECK-NEXT: EMPTY 60 61 ; VERIFY: No errors. 62 63 @_ZN4lldb7SBBlockC1ERKS0_ = common dso_local global i8* null, align 8, !dbg !0 64 @_ZN4lldb7SBErrorC1ERKS0_ = common dso_local global i8* null, align 8, !dbg !6 65 @_ZN4lldb7SBValueC1ERKS0_ = common dso_local global i8* null, align 8, !dbg !10 66 @_ZL11NumCommutes = common dso_local global i8* null, align 8, !dbg !13 67 @_ZL9NumReMats = common dso_local global i8* null, align 8, !dbg !16 68 69 !llvm.dbg.cu = !{!2} 70 !llvm.module.flags = !{!20, !21, !22} 71 !llvm.ident = !{!23} 72 73 !0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression()) 74 !1 = distinct !DIGlobalVariable(name: "_ZN4lldb7SBBlockC1ERKS0_", scope: !2, file: !3, line: 1, type: !19, isLocal: false, isDefinition: true) 75 !2 = distinct !DICompileUnit(language: DW_LANG_C99, file: !3, producer: "clang version 7.0.0 (trunk 325496) (llvm/trunk 325732)", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !4, globals: !5) 76 !3 = !DIFile(filename: "/tmp/col.c", directory: "/tmp") 77 !4 = !{} 78 !5 = !{!0, !6, !10, !13, !16} 79 !6 = !DIGlobalVariableExpression(var: !7, expr: !DIExpression()) 80 !7 = distinct !DIGlobalVariable(name: "_ZN4lldb7SBErrorC1ERKS0_", scope: !2, file: !3, line: 2, type: !8, isLocal: false, isDefinition: true) 81 !8 = !DIDerivedType(tag: DW_TAG_typedef, name: "_ZN4lldb7SBErroraSERKS0_", file: !3, line: 2, baseType: !9) 82 !9 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: null, size: 64) 83 !10 = !DIGlobalVariableExpression(var: !11, expr: !DIExpression()) 84 !11 = distinct !DIGlobalVariable(name: "_ZN4lldb7SBValueC1ERKS0_", scope: !2, file: !3, line: 3, type: !12, isLocal: false, isDefinition: true) 85 !12 = !DIDerivedType(tag: DW_TAG_typedef, name: "_ZN4lldb7SBValueaSERKS0_", file: !3, line: 3, baseType: !9) 86 !13 = !DIGlobalVariableExpression(var: !14, expr: !DIExpression()) 87 !14 = distinct !DIGlobalVariable(name: "_ZL11NumCommutes", scope: !2, file: !3, line: 4, type: !15, isLocal: false, isDefinition: true) 88 !15 = !DIDerivedType(tag: DW_TAG_typedef, name: "_ZL11numCommutes", file: !3, line: 4, baseType: !9) 89 !16 = !DIGlobalVariableExpression(var: !17, expr: !DIExpression()) 90 !17 = distinct !DIGlobalVariable(name: "_ZL9NumReMats", scope: !2, file: !3, line: 5, type: !18, isLocal: false, isDefinition: true) 91 !18 = !DIDerivedType(tag: DW_TAG_typedef, name: "_ZL9NumRemats", file: !3, line: 5, baseType: !9) 92 !19 = !DIDerivedType(tag: DW_TAG_typedef, name: "_ZN4lldb7SBBlockaSERKS0_", file: !3, line: 1, baseType: !9) 93 !20 = !{i32 2, !"Dwarf Version", i32 4} 94 !21 = !{i32 2, !"Debug Info Version", i32 3} 95 !22 = !{i32 1, !"wchar_size", i32 4} 96 !23 = !{!"clang version 7.0.0 (trunk 325496) (llvm/trunk 325732)"} 97
