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c40d7008ea
The bitcode upgrade for DIGlobalVariable unconditionally wrapped DIGlobalVariables in a DIGlobalVariableExpression. When a DIGlobalVariable is referenced by a DIImportedEntity, however, this is wrong. This patch fixes the bitcode upgrade by deferring the creation of DIGlobalVariableExpressions until we know the context of the DIGlobalVariable. <rdar://problem/30134279> Differential Revision: https://reviews.llvm.org/D29349 llvm-svn: 294318
40 lines
2.3 KiB
LLVM
40 lines
2.3 KiB
LLVM
; RUN: llvm-dis -o - %s.bc | FileCheck %s
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; RUN: llvm-dis -o - %s.bc | llvm-as - | llvm-bcanalyzer -dump - | FileCheck %s --check-prefix=BC
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; BC: GLOBAL_VAR_EXPR
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; BC: GLOBAL_DECL_ATTACHMENT
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; CHECK: @g = common global i32 0, align 4, !dbg ![[G:[0-9]+]]
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; CHECK: @h = common global i32 0, align 4, !dbg ![[H:[0-9]+]]
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; CHECK: ![[G]] = {{.*}}!DIGlobalVariableExpression(var: ![[GVAR:[0-9]+]], expr: ![[GEXPR:[0-9]+]])
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; CHECK: ![[GVAR]] = distinct !DIGlobalVariable(name: "g",
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; CHECK: DICompileUnit({{.*}}, imports: ![[IMPORTS:[0-9]+]]
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; CHECK: !DIGlobalVariableExpression(var: ![[CVAR:[0-9]+]], expr: ![[CEXPR:[0-9]+]])
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; CHECK: ![[CVAR]] = distinct !DIGlobalVariable(name: "c",
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; CHECK: ![[CEXPR]] = !DIExpression(DW_OP_constu, 23, DW_OP_stack_value)
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; CHECK: ![[HVAR:[0-9]+]] = distinct !DIGlobalVariable(name: "h",
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; CHECK: ![[IMPORTS]] = !{![[CIMPORT:[0-9]+]]}
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; CHECK: ![[CIMPORT]] = !DIImportedEntity({{.*}}entity: ![[HVAR]]
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; CHECK: ![[GEXPR]] = !DIExpression(DW_OP_plus, 1)
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; CHECK: ![[H]] = {{.*}}!DIGlobalVariableExpression(var: ![[HVAR]])
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@g = common global i32 0, align 4, !dbg !0
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@h = common global i32 0, align 4, !dbg !11
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!llvm.dbg.cu = !{!1}
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!llvm.module.flags = !{!6, !7, !8}
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!llvm.ident = !{!9}
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!0 = distinct !DIGlobalVariable(name: "g", scope: !1, file: !2, line: 1, type: !5, isLocal: false, isDefinition: true, expr: !DIExpression(DW_OP_plus, 1))
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!1 = distinct !DICompileUnit(language: DW_LANG_C99, file: !2, producer: "clang version 4.0.0 (trunk 286129) (llvm/trunk 286128)", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, globals: !4, imports: !3)
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!2 = !DIFile(filename: "a.c", directory: "/")
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!3 = !{!12}
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!4 = !{!0, !10, !11}
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!5 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
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!6 = !{i32 2, !"Dwarf Version", i32 4}
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!7 = !{i32 2, !"Debug Info Version", i32 3}
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!8 = !{i32 1, !"PIC Level", i32 2}
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!9 = !{!"clang version 4.0.0 (trunk 286129) (llvm/trunk 286128)"}
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!10 = distinct !DIGlobalVariable(name: "c", scope: !1, file: !2, line: 1, type: !5, isLocal: false, isDefinition: true, expr: !DIExpression(DW_OP_constu, 23, DW_OP_stack_value))
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!11 = distinct !DIGlobalVariable(name: "h", scope: !1, file: !2, line: 2, type: !5, isLocal: false, isDefinition: true)
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!12 = !DIImportedEntity(tag: DW_TAG_imported_declaration, line: 1, scope: !1, entity: !11)
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