[Bug debug/69073] New: internal compiler error: in maybe_record_trace_start

[ysato at users dot sourceforge.jp]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69073

            Bug ID: 69073
           Summary: internal compiler error: in maybe_record_trace_start
           Product: gcc
           Version: 6.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: debug
          Assignee: unassigned at gcc dot gnu.org
          Reporter: ysato at users dot sourceforge.jp
  Target Milestone: ---

Created attachment 37179
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=37179&action=edit
reproduce sample

$ LANG=C rx-elf-gcc -Os -ffixed-r13 -c nfs.c
net/nfs.c: In function 'nfs_umountall_req':
net/nfs.c:276:1: internal compiler error: in maybe_record_trace_start, at
dwarf2cfi.c:2300
 }
 ^
0x6f5517 maybe_record_trace_start
        ../../gcc/dwarf2cfi.c:2300
0x6f5dd0 scan_trace
        ../../gcc/dwarf2cfi.c:2478
0x6f658a create_cfi_notes
        ../../gcc/dwarf2cfi.c:2632
0x6f658a execute_dwarf2_frame
        ../../gcc/dwarf2cfi.c:2990
0x6f658a execute
        ../../gcc/dwarf2cfi.c:3470