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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
34 lines
1.4 KiB
LLVM
34 lines
1.4 KiB
LLVM
; REQUIRES: object-emission
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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-NEXT: DW_AT_type [DW_FORM_ref4] (cu + {{.*}} => {[[TYPE:0x[0-9a-f]+]]})
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; CHECK: [[TYPE]]: DW_TAG_base_type
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; IR generated from clang -g with the following source:
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; struct Foo {
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; int e;
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; };
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; int Foo:*x = 0;
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source_filename = "test/DebugInfo/Generic/tu-member-pointer.ll"
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@x = global i64 -1, align 8, !dbg !0
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!llvm.dbg.cu = !{!6}
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!llvm.module.flags = !{!10, !11}
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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: "foo.cpp", directory: ".")
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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: "Foo", file: !2, line: 1, flags: DIFlagFwdDecl, identifier: "_ZTS3Foo")
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!6 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !2, producer: "clang version 3.4", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !7, retainedTypes: !8, globals: !9, imports: !7)
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!7 = !{}
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!8 = !{!5}
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!9 = !{!0}
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!10 = !{i32 2, !"Dwarf Version", i32 2}
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!11 = !{i32 1, !"Debug Info Version", i32 3}
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