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| author | Shafik Yaghmour <syaghmour@apple.com> | 2019-08-26 20:59:44 +0000 |
|---|---|---|
| committer | Shafik Yaghmour <syaghmour@apple.com> | 2019-08-26 20:59:44 +0000 |
| commit | 90e00bd8f3e1e03a9390c2531b90117498d2c78f (patch) | |
| tree | 9c0637093b0f01a74f77d19017340bc0709071a9 /llvm/test/DebugInfo/Generic | |
| parent | 72797ba072c02dd2d1c25b2d8a0735d8c6eb0134 (diff) | |
| download | bcm5719-llvm-90e00bd8f3e1e03a9390c2531b90117498d2c78f.tar.gz bcm5719-llvm-90e00bd8f3e1e03a9390c2531b90117498d2c78f.zip | |
Debug Info: Support for DW_AT_export_symbols for anonymous structs
This implements the DWARF 5 feature described in:
http://dwarfstd.org/ShowIssue.php?issue=141212.1
To support recognizing anonymous structs:
struct A {
struct { // Anonymous struct
int y;
};
} a
This patch adds support for the new flag in constructTypeDIE(...) and test to verify this change.
Differential Revision: https://reviews.llvm.org/D66605
llvm-svn: 369969
Diffstat (limited to 'llvm/test/DebugInfo/Generic')
| -rw-r--r-- | llvm/test/DebugInfo/Generic/export-symbol-anonymous-class.ll | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/llvm/test/DebugInfo/Generic/export-symbol-anonymous-class.ll b/llvm/test/DebugInfo/Generic/export-symbol-anonymous-class.ll new file mode 100644 index 00000000000..e76e6b55e69 --- /dev/null +++ b/llvm/test/DebugInfo/Generic/export-symbol-anonymous-class.ll @@ -0,0 +1,43 @@ +; RUN: %llc_dwarf -O0 -filetype=obj < %s | llvm-dwarfdump -debug-info - | FileCheck %s +; +; struct A { +; // Anonymous class exports its symbols into A +; struct { +; int y; +; }; +; } a; +; +; CHECK: DW_TAG_structure_type +; CHECK-NEXT: DW_AT_calling_convention (DW_CC_pass_by_value) +; CHECK-NEXT: DW_AT_name ("A") +; +; CHECK-NOT: NULL +; +; CHECK: DW_TAG_structure_type +; CHECK-NEXT: DW_AT_export_symbols (true) + +%struct.A = type { %struct.anon } +%struct.anon = type { i32 } + +@a = global %struct.A zeroinitializer, align 4, !dbg !0 + +!llvm.module.flags = !{!14, !15} +!llvm.dbg.cu = !{!2} +!llvm.ident = !{!16} + +!0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression()) +!1 = distinct !DIGlobalVariable(name: "a", scope: !2, file: !3, line: 5, type: !6, isLocal: false, isDefinition: true) +!2 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !3, producer: "clang version 10.0.0", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !4, globals: !5, nameTableKind: GNU) +!3 = !DIFile(filename: "simple_anon_class.cpp", directory: "/dir") +!4 = !{} +!5 = !{!0} +!6 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "A", file: !3, line: 1, size: 32, flags: DIFlagTypePassByValue, elements: !7, identifier: "_ZTS1A") +!7 = !{!8} +!8 = !DIDerivedType(tag: DW_TAG_member, scope: !6, file: !3, line: 2, baseType: !9, size: 32) +!9 = distinct !DICompositeType(tag: DW_TAG_structure_type, scope: !6, file: !3, line: 2, size: 32, flags: DIFlagExportSymbols | DIFlagTypePassByValue, elements: !10, identifier: "_ZTSN1AUt_E") +!10 = !{!11} +!11 = !DIDerivedType(tag: DW_TAG_member, name: "y", scope: !9, file: !3, line: 3, baseType: !12, size: 32) +!12 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed) +!14 = !{i32 2, !"Dwarf Version", i32 4} +!15 = !{i32 2, !"Debug Info Version", i32 3} +!16 = !{!"clang version 10.0.0"} |
