[Bug c++/77363] New: Missing debug information in DWARF

["EngyCZ at gmail dot com" <gcc-bugzilla at gcc dot gnu dot org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77363

            Bug ID: 77363
           Summary: Missing debug information in DWARF
           Product: gcc
           Version: 5.4.0
            Status: UNCONFIRMED
          Severity: major
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: EngyCZ at gmail dot com
  Target Milestone: ---

Created attachment 39489
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=39489&action=edit
example.c

I have found a missing debug information in dwarf for file compiled with g++.
Same file compiled with gcc has correct debug information.

I have compiled the file as g++ -c -g example.c
Export debug information as readelf -wi example.o >deb

There is a missing information for type tHash1
 <1><2b>: Abbrev Number: 3 (DW_TAG_typedef)
    <2c>   DW_AT_name        : (indirect string, offset: 0x23): tHash1
    <30>   DW_AT_decl_file   : 1
    <31>   DW_AT_decl_line   : 4

but for the type tHash2 the information is correct
 <1><39>: Abbrev Number: 4 (DW_TAG_typedef)
    <3a>   DW_AT_name        : (indirect string, offset: 0x2a): tHash2
    <3e>   DW_AT_decl_file   : 1
    <3f>   DW_AT_decl_line   : 5
    <40>   DW_AT_type        : <0x44>    <------- OK

I ask someone to confirm the bug.
example.c attached