[Bug debug/87432] New: LTO produced debug info makes gdb slow

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87432

            Bug ID: 87432
           Summary: LTO produced debug info makes gdb slow
           Product: gcc
           Version: 8.2.1
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: debug
          Assignee: unassigned at gcc dot gnu.org
          Reporter: rguenth at gcc dot gnu.org
  Target Milestone: ---

For example starting gdb on LTO bootstrapped cc1 takes s and ~1.8GB memory for
me.  Setting a breakpoint on do_rpo_vn takes another 3s.  That feels a lot
slower than doing this on a non-LTO bootstrapped cc1.

This bug is to track what _GCC_ can do better here.