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35d2f61510
Recommitting r201351 and r201355 (reverted in r201351 and r201355) We weren't emitting the an empty (header only) line table when the line table was empty - this made the DWARF invalid (the compile unit would point to the zero-size debug_lines section where there should've been an empty line table but there was nothing at all). Fix that, and as a consequence this works around/addresses PR18809. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@201380 91177308-0d34-0410-b5e6-96231b3b80d8
21 lines
828 B
LLVM
21 lines
828 B
LLVM
; RUN: llc %s -o %t -filetype=obj
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; RUN: llvm-dwarfdump -debug-dump=line %t | FileCheck %s
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; PR18809
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; XFAIL: cygwin,mingw32
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; Expect no line table entry since there are no functions and file references in this compile unit
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; CHECK: .debug_line contents:
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; CHECK: Line table prologue:
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; CHECK: total_length: 0x00000019
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; CHECK-NOT: file_names[
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!5}
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!0 = metadata !{i32 720913, metadata !4, i32 12, metadata !"clang version 3.1 (trunk 143523)", i1 true, metadata !"", i32 0, metadata !2, metadata !2, metadata !2, metadata !2, null, metadata !""} ; [ DW_TAG_compile_unit ]
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!2 = metadata !{}
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!3 = metadata !{i32 786473, metadata !4} ; [ DW_TAG_file_type ]
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!4 = metadata !{metadata !"empty.c", metadata !"/home/nlewycky"}
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!5 = metadata !{i32 1, metadata !"Debug Info Version", i32 1}
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