[Bug ipa/65039] [5 Regression] g++ 5 segmentation fault when compiling with -O2 optimization

[redi at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65039

Jonathan Wakely <redi at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2015-02-12
          Component|c++                         |ipa
      Known to work|                            |4.8.3, 4.9.2
            Summary|g++ 5 segmentation fault    |[5 Regression] g++ 5
                   |when compiling with -O2     |segmentation fault when
                   |optimization                |compiling with -O2
                   |                            |optimization
     Ever confirmed|0                           |1
      Known to fail|                            |5.0

--- Comment #1 from Jonathan Wakely <redi at gcc dot gnu.org> ---
0xc9602f crash_signal
        /home/jwakely/src/gcc/gcc/gcc/toplev.c:381
0x12c322a tree_check
        /home/jwakely/src/gcc/gcc/gcc/tree.h:2845
0x12c322a ipa_icf::sem_function::init()
        /home/jwakely/src/gcc/gcc/gcc/ipa-icf.c:786
0x12c6a19 ipa_icf::sem_item_optimizer::parse_nonsingleton_classes()
        /home/jwakely/src/gcc/gcc/gcc/ipa-icf.c:1873
0x12cb9b2 ipa_icf::sem_item_optimizer::execute()
        /home/jwakely/src/gcc/gcc/gcc/ipa-icf.c:1729
0x12cc5e1 ipa_icf_driver
        /home/jwakely/src/gcc/gcc/gcc/ipa-icf.c:2459
0x12cc5e1 ipa_icf::pass_ipa_icf::execute(function*)
        /home/jwakely/src/gcc/gcc/gcc/ipa-icf.c:2507