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69e607f200
This change simplifies code that has to deal with DIGlobalVariableExpression and mirrors how we treat DIExpressions in debug info intrinsics. Before this change there were two ways of representing empty expressions on globals, a nullptr and an empty !DIExpression(). If someone needs to upgrade out-of-tree testcases: perl -pi -e 's/(!DIGlobalVariableExpression\(var: ![0-9]*)\)/\1, expr: !DIExpression())/g' <MYTEST.ll> will catch 95%. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@312144 91177308-0d34-0410-b5e6-96231b3b80d8
45 lines
2.0 KiB
LLVM
45 lines
2.0 KiB
LLVM
; REQUIRES: object-emission
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; XFAIL: hexagon
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; RUN: %llc_dwarf -filetype=obj -O0 < %s > %t
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; RUN: llvm-dwarfdump -debug-dump=info %t | FileCheck %s
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; CHECK: DW_TAG_ptr_to_member_type
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; CHECK: DW_TAG_ptr_to_member_type
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; CHECK-NEXT: DW_AT_type [DW_FORM_ref4] (cu + {{.*}} => {[[TYPE:0x[0-9a-f]+]]})
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; CHECK: [[TYPE]]: DW_TAG_subroutine_type
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; CHECK: DW_TAG_formal_parameter
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; CHECK-NEXT: DW_AT_type
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; CHECK-NEXT: DW_AT_artificial [DW_FORM_flag
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; IR generated from clang -g with the following source:
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; struct S {
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; };
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;
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; int S::*x = 0;
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; void (S::*y)(int) = 0;
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source_filename = "test/DebugInfo/Generic/member-pointers.ll"
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@x = global i64 -1, align 8, !dbg !0
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@y = global { i64, i64 } zeroinitializer, align 8, !dbg !7
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!llvm.dbg.cu = !{!13}
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!llvm.module.flags = !{!15}
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!0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression())
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!1 = !DIGlobalVariable(name: "x", scope: null, file: !2, line: 4, type: !3, isLocal: false, isDefinition: true)
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!2 = !DIFile(filename: "simple.cpp", directory: "/home/blaikie/Development/scratch")
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!3 = !DIDerivedType(tag: DW_TAG_ptr_to_member_type, baseType: !4, extraData: !5)
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!4 = !DIBasicType(name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
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!5 = !DICompositeType(tag: DW_TAG_structure_type, name: "S", file: !2, line: 1, size: 8, align: 8, elements: !6)
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!6 = !{}
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!7 = !DIGlobalVariableExpression(var: !8, expr: !DIExpression())
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!8 = !DIGlobalVariable(name: "y", scope: null, file: !2, line: 5, type: !9, isLocal: false, isDefinition: true)
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!9 = !DIDerivedType(tag: DW_TAG_ptr_to_member_type, baseType: !10, extraData: !5)
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!10 = !DISubroutineType(types: !11)
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!11 = !{null, !12, !4}
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!12 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !5, size: 64, align: 64, flags: DIFlagArtificial | DIFlagObjectPointer)
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!13 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !2, producer: "clang version 3.3 ", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !6, retainedTypes: !6, globals: !14, imports: !6)
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!14 = !{!0, !7}
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!15 = !{i32 1, !"Debug Info Version", i32 3}
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