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Since Split DWARF needs to name the actual .dwo file that is generated, it can't be known at the time the llvm::Module is produced as it may be merged with other Modules before the object is generated and that object may be generated with any name. By passing the Split DWARF file name when LLVM is producing object code the .dwo file name in the object file can match correctly. The support for Split DWARF for implicit modules remains the same - using metadata to store the dwo name and dwo id so that potentially multiple skeleton CUs referring to different dwo files can be generated from one llvm::Module. llvm-svn: 301062
27 lines
1.1 KiB
LLVM
27 lines
1.1 KiB
LLVM
; RUN: llc -mtriple i686-pc-cygwin < %s -filetype=obj | llvm-dwarfdump - | FileCheck %s
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; RUN: llc -mtriple i686-pc-cygwin -split-dwarf-file=foo.dwo < %s -filetype=obj | llvm-dwarfdump - | FileCheck --check-prefix=FISSION %s
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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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; CHECK: .debug_pubnames contents:
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; CHECK-NOT: Offset
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; CHECK: .debug_pubtypes contents:
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; CHECK-NOT: Offset
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; Don't emit DW_AT_addr_base when there are no addresses.
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; FISSION-NOT: DW_AT_GNU_addr_base [DW_FORM_sec_offset]
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!5}
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!0 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "clang version 3.1 (trunk 143523)", isOptimized: true, emissionKind: FullDebug, file: !4, enums: !2, retainedTypes: !2, globals: !2)
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!2 = !{}
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!3 = !DIFile(filename: "empty.c", directory: "/home/nlewycky")
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!4 = !DIFile(filename: "empty.c", directory: "/home/nlewycky")
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!5 = !{i32 1, !"Debug Info Version", i32 3}
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