[Bug ipa/71981] [6/7 Regression] ICE at -O2 and -O3 on x86_64-linux-gnu (internal compiler error: in get_dynamic_type, at ipa-polymorphic-call.c:1667)

[jamborm at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71981

--- Comment #4 from Martin Jambor <jamborm at gcc dot gnu.org> ---
Author: jamborm
Date: Tue Aug  9 16:05:30 2016
New Revision: 239294

URL: https://gcc.gnu.org/viewcvs?rev=239294&root=gcc&view=rev
Log:
[PR ipa/71981] Make get_dynamic_type grok MEM_REF

2016-08-09  Martin Jambor  <mjam...@suse.cz>

        PR ipa/71981
        * ipa-polymorphic-call.c (get_dynamic_type): Bail out gracefully
        if instance is a MEM_REF.

testsuite/
        PR ipa/71981
        * gcc.dg/ipa/pr71981.c: New test.


Added:
    trunk/gcc/testsuite/gcc.dg/ipa/pr71981.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/ipa-polymorphic-call.c
    trunk/gcc/testsuite/ChangeLog