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7d6813a6c8
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%. llvm-svn: 312144
44 lines
1.9 KiB
LLVM
44 lines
1.9 KiB
LLVM
; RUN: opt -analyze -module-debuginfo < %s | FileCheck %s
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; This module is generated from the following c-code:
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;
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; > union X;
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; >
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; > struct Y {
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; > union X *x;
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; > };
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; >
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; > struct Y y;
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; CHECK: Type: Y from /tmp/minimal.c:3 DW_TAG_structure_type
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; CHECK: Type: x from /tmp/minimal.c:4 DW_TAG_member
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; CHECK: Type: DW_TAG_pointer_type
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; CHECK: Type: X from /tmp/minimal.c:1 DW_TAG_structure_type
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source_filename = "test/DebugInfo/Generic/debuginfofinder-forward-declaration.ll"
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%struct.Y = type { %struct.X* }
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%struct.X = type opaque
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@y = common global %struct.Y zeroinitializer, align 8, !dbg !0
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!llvm.dbg.cu = !{!2}
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!llvm.module.flags = !{!11, !12}
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!llvm.ident = !{!13}
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!0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression())
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!1 = !DIGlobalVariable(name: "y", scope: !2, file: !3, line: 7, type: !6, isLocal: false, isDefinition: true)
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!2 = distinct !DICompileUnit(language: DW_LANG_C99, file: !3, producer: "clang version 3.7.0 (http://llvm.org/git/clang.git 247b30a043eb8f39ea3708e7e995089da0a6b00f) (http://llvm.org/git/llvm.git 6ecc7365a89c771fd229bdd9ffcc178684ea1aa5)", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !4, retainedTypes: !4, globals: !5, imports: !4)
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!3 = !DIFile(filename: "minimal.c", directory: "/tmp")
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!4 = !{}
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!5 = !{!0}
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!6 = !DICompositeType(tag: DW_TAG_structure_type, name: "Y", file: !3, line: 3, size: 64, align: 64, elements: !7)
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!7 = !{!8}
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!8 = !DIDerivedType(tag: DW_TAG_member, name: "x", scope: !6, file: !3, line: 4, baseType: !9, size: 64, align: 64)
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!9 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !10, size: 64, align: 64)
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!10 = !DICompositeType(tag: DW_TAG_structure_type, name: "X", file: !3, line: 1, flags: DIFlagFwdDecl)
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!11 = !{i32 2, !"Dwarf Version", i32 4}
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!12 = !{i32 2, !"Debug Info Version", i32 3}
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!13 = !{!"clang version 3.7.0 (http://llvm.org/git/clang.git 247b30a043eb8f39ea3708e7e995089da0a6b00f) (http://llvm.org/git/llvm.git 6ecc7365a89c771fd229bdd9ffcc178684ea1aa5)"}
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