73ec065604
This reverts commit 289920 (again). I forgot to implement a Bitcode upgrade for the case where a DIGlobalVariable has not DIExpression. Unfortunately it is not possible to safely upgrade these variables without adding a flag to the bitcode record indicating which version they are. My plan of record is to roll the planned follow-up patch that adds a unit: field to DIGlobalVariable into this patch before recomitting. This way we only need one Bitcode upgrade for both changes (with a version flag in the bitcode record to safely distinguish the record formats). Sorry for the churn! llvm-svn: 289982
43 lines
1.8 KiB
LLVM
43 lines
1.8 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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%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 !4
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!10, !11}
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!llvm.ident = !{!12}
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!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, 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: !2, retainedTypes: !2, globals: !3, imports: !2)
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!1 = !DIFile(filename: "minimal.c", directory: "/tmp")
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!2 = !{}
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!3 = !{!4}
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!4 = !DIGlobalVariable(name: "y", scope: !0, file: !1, line: 7, type: !5, isLocal: false, isDefinition: true)
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!5 = !DICompositeType(tag: DW_TAG_structure_type, name: "Y", file: !1, line: 3, size: 64, align: 64, elements: !6)
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!6 = !{!7}
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!7 = !DIDerivedType(tag: DW_TAG_member, name: "x", scope: !5, file: !1, line: 4, baseType: !8, size: 64, align: 64)
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!8 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !9, size: 64, align: 64)
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!9 = !DICompositeType(tag: DW_TAG_structure_type, name: "X", file: !1, line: 1, flags: DIFlagFwdDecl)
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!10 = !{i32 2, !"Dwarf Version", i32 4}
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!11 = !{i32 2, !"Debug Info Version", i32 3}
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!12 = !{!"clang version 3.7.0 (http://llvm.org/git/clang.git 247b30a043eb8f39ea3708e7e995089da0a6b00f) (http://llvm.org/git/llvm.git 6ecc7365a89c771fd229bdd9ffcc178684ea1aa5)"}
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