[Bug ipa/88985] [9 Regression] ICE in estimate_edge_devirt_benefit, at ipa-fnsummary.c:2585

[msebor at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88985

Martin Sebor <msebor at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2019-01-23
                 CC|                            |msebor at gcc dot gnu.org
      Known to work|                            |8.2.0
     Ever confirmed|0                           |1
      Known to fail|                            |9.0

--- Comment #1 from Martin Sebor <msebor at gcc dot gnu.org> ---
Confirmed.  Bisection points to r261744:

r261744 | marxin | 2018-06-19 10:31:20 -0400 (Tue, 19 Jun 2018) | 75 lines

Clean-up usage of ipa_fn_summary and ipa_call_summary summaries.

The result of the following call is null, and so the dereference in the return
statement below crashes:

  isummary = ipa_fn_summaries->get (callee);
  return isummary->inlinable;