[llvm-bugs] [Bug 31659] New: Unexpected DW_AT_external attribute on lambda operator

[via llvm-bugs]

https://llvm.org/bugs/show_bug.cgi?id=31659

            Bug ID: 31659
           Summary: Unexpected DW_AT_external attribute on lambda operator
           Product: clang
           Version: trunk
          Hardware: PC
                OS: All
            Status: NEW
          Severity: normal
          Priority: P
         Component: -New Bugs
          Assignee: unassignedclangbugs at nondot.org
          Reporter: dcallahan at fb.com
                CC: llvm-bugs at lists.llvm.org
    Classification: Unclassified

Created attachment 17846
  --> https://llvm.org/bugs/attachment.cgi?id=17846&action=edit
example source

The generated call operator for a lambda expression is marked with
DW_AT_external in the declaration although the function is correctly marked
as local in the object file symbol table.

nm bug1.o | c++filt
0000000000000020 t $_0::operator()() const


llvm-dwarfdump bug1.o
...
0x0000007d:     DW_TAG_subprogram [10] *
                  DW_AT_linkage_name [DW_FORM_strp]     (
.debug_str[0x000000f8] = "_ZNK3$_0clEv")
                  DW_AT_name [DW_FORM_strp]     ( .debug_str[0x00000105] =
"operator()")
                  DW_AT_decl_file [DW_FORM_data1]      
("/home/dcallahan/tasks/LinkCheck/Bug1/bug1.cc"\
)
                  DW_AT_decl_line [DW_FORM_data1]       (8)
                  DW_AT_declaration [DW_FORM_flag_present]      (true)
                  DW_AT_external [DW_FORM_flag_present] (true)
                  DW_AT_accessibility [DW_FORM_data1]   (DW_ACCESS_public)

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