6d353348e5
Summary: Most DIExpressions are empty or very simple. When they are complex, they tend to be unique, so checking them inline is reasonable. This also avoids the need for CodeGen passes to append to the llvm.dbg.mir named md node. See also PR22780, for making DIExpression not be an MDNode. Reviewers: aprantl, dexonsmith, dblaikie Subscribers: qcolombet, javed.absar, eraman, hiraditya, llvm-commits Differential Revision: https://reviews.llvm.org/D37075 llvm-svn: 311594
38 lines
2.2 KiB
LLVM
38 lines
2.2 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: !DIExpression(DW_OP_plus_uconst, 1))
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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: !DIExpression(DW_OP_constu, 23, DW_OP_stack_value))
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; CHECK: ![[CVAR]] = distinct !DIGlobalVariable(name: "c",
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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: ![[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, file: !2, line: 1, scope: !1, entity: !11)
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