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83c1942a55
Summary: If an input DICompileUnit is completely empty (e.g., the result of running "clang -g" on an empty file), we don't bother emitting an empty DWARF CU. When we do that, we must make sure we don't also emit a DWARF v5 name index, as DWARF specifies that each index must reference at least one compilation unit. Reviewers: JDevlieghere, aprantl, dblaikie Subscribers: llvm-commits Differential Revision: https://reviews.llvm.org/D45435 llvm-svn: 329575
20 lines
798 B
LLVM
20 lines
798 B
LLVM
; REQUIRES: object-emission
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; RUN: %llc_dwarf -accel-tables=Dwarf -filetype=obj -o %t < %s
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; RUN: llvm-dwarfdump -debug-names %t | FileCheck %s
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; RUN: llvm-dwarfdump -debug-names -verify %t | FileCheck --check-prefix=VERIFY %s
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; CHECK-NOT: CU count: 0
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; VERIFY: No errors.
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!3, !4, !5}
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!llvm.ident = !{!6}
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!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 7.0.0 (trunk 329543) (llvm/trunk 329551)", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !2)
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!1 = !DIFile(filename: "-", directory: "/tmp")
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!2 = !{}
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!3 = !{i32 2, !"Dwarf Version", i32 4}
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!4 = !{i32 2, !"Debug Info Version", i32 3}
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!5 = !{i32 1, !"wchar_size", i32 4}
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!6 = !{!"clang version 7.0.0 (trunk 329543) (llvm/trunk 329551)"}
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