mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-10-20 19:42:54 +02:00
e6c0e33913
if it is more specific than the one in its DW_AT_specification. If a static member is an array, the translation unit containing the member definition may have a more specific type (including its length) than TUs only seeing the class declaration. This patch adds a DW_AT_type to the member's DW_TAG_variable in addition to the DW_AT_specification in these cases. The member type in the DW_AT_specification still shows the more generic type (without the length) to avoid defeating type uniquing. The DWARF standard discourages “duplicating” a DW_AT_type in a member variable definition but doesn’t explicitly forbid it. Having the more specific type (with the array length) available is what allows the debugger to print the contents of a static array member variable. https://reviews.llvm.org/D26368 rdar://problem/28706946 llvm-svn: 286302
72 lines
2.9 KiB
LLVM
72 lines
2.9 KiB
LLVM
; RUN: %llc_dwarf %s -filetype=obj -o - | llvm-dwarfdump -debug-dump=info - | FileCheck %s
|
|
; Generated from:
|
|
;
|
|
; struct A {
|
|
; static int fully_specified;
|
|
; static int smem[];
|
|
; };
|
|
;
|
|
; int A::fully_specified;
|
|
; int A::smem[] = { 0, 1, 2, 3 };
|
|
;
|
|
; CHECK: DW_TAG_variable
|
|
; CHECK-NEXT: DW_AT_specification{{.*}}"fully_specified"
|
|
; CHECK-NOT: DW_AT_type
|
|
; CHECK: DW_TAG_structure_type
|
|
; CHECK: DW_TAG_member
|
|
; CHECK: DW_TAG_member
|
|
; CHECK-NEXT: DW_AT_name {{.*}} "smem"
|
|
; CHECK-NEXT: DW_AT_type {{.*}} {0x[[GENERIC:[0-9]+]]}
|
|
;
|
|
; CHECK: 0x[[GENERIC]]: DW_TAG_array_type
|
|
; CHECK-NOT: DW_TAG
|
|
; CHECK-NOT: NULL
|
|
; CHECK: DW_TAG_subrange_type
|
|
; CHECK-NOT: DW_AT_count
|
|
; CHECK: NULL
|
|
;
|
|
; CHECK: DW_TAG_variable
|
|
; CHECK-NEXT: DW_AT_specification {{.*}}"smem"
|
|
; CHECK-NEXT: DW_AT_type {{.*}} {0x[[SPECIFIC:[0-9]+]]}
|
|
;
|
|
; CHECK: 0x[[SPECIFIC]]: DW_TAG_array_type
|
|
; CHECK-NOT: DW_TAG
|
|
; CHECK-NOT: NULL
|
|
; CHECK: DW_TAG_subrange_type
|
|
; CHECK-NOT: DW_TAG
|
|
; CHECK-NOT: NULL
|
|
; CHECK: DW_AT_count {{.*}} (0x04)
|
|
|
|
source_filename = "static_member_array.cpp"
|
|
target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
|
|
target triple = "x86_64-apple-macosx10.12.0"
|
|
|
|
@_ZN1A15fully_specifiedE = global i32 0, align 4, !dbg !0
|
|
@_ZN1A4smemE = global [4 x i32] [i32 0, i32 1, i32 2, i32 3], align 16, !dbg !5
|
|
|
|
!llvm.dbg.cu = !{!1}
|
|
!llvm.module.flags = !{!17, !18, !19}
|
|
!llvm.ident = !{!20}
|
|
|
|
!0 = distinct !DIGlobalVariable(name: "fully_specified", linkageName: "_ZN1A15fully_specifiedE", scope: !1, file: !2, line: 7, type: !7, isLocal: false, isDefinition: true, declaration: !13)
|
|
!1 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !2, producer: "clang version 4.0.0 (trunk 286129) (llvm/trunk 286128)", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !3, globals: !4)
|
|
!2 = !DIFile(filename: "static_member_array.cpp", directory: "/Volumes/Data/radar/28706946")
|
|
!3 = !{}
|
|
!4 = !{!0, !5}
|
|
!5 = distinct !DIGlobalVariable(name: "smem", linkageName: "_ZN1A4smemE", scope: !1, file: !2, line: 8, type: !6, isLocal: false, isDefinition: true, declaration: !10)
|
|
!6 = !DICompositeType(tag: DW_TAG_array_type, baseType: !7, size: 128, elements: !8)
|
|
!7 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
|
|
!8 = !{!9}
|
|
!9 = !DISubrange(count: 4)
|
|
!10 = !DIDerivedType(tag: DW_TAG_member, name: "smem", scope: !11, file: !2, line: 4, baseType: !14, flags: DIFlagStaticMember)
|
|
!11 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "A", file: !2, line: 1, size: 8, elements: !12, identifier: "_ZTS1A")
|
|
!12 = !{!13, !10}
|
|
!13 = !DIDerivedType(tag: DW_TAG_member, name: "fully_specified", scope: !11, file: !2, line: 3, baseType: !7, flags: DIFlagStaticMember)
|
|
!14 = !DICompositeType(tag: DW_TAG_array_type, baseType: !7, elements: !15)
|
|
!15 = !{!16}
|
|
!16 = !DISubrange(count: -1)
|
|
!17 = !{i32 2, !"Dwarf Version", i32 4}
|
|
!18 = !{i32 2, !"Debug Info Version", i32 3}
|
|
!19 = !{i32 1, !"PIC Level", i32 2}
|
|
!20 = !{!"clang version 4.0.0 (trunk 286129) (llvm/trunk 286128)"}
|