It's caused or triggered by r154736:

Author: hubicka
Date: Sun Nov 29 10:32:08 2009
New Revision: 154736

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=154736
Log:

        * cgraph.c (same_body_alias_1): Break out of
        (same_body_alias): ... here; remove comdat check; it is handled
        in cp already.
        (cgraph_add_thunk): New.
        (dump_cgraph_node): Dump aliases and thunks.
        * cgraph.h (cgraph_thunk_info): New structure.
        (struct cgraph_node): Add thunk info.
        (cgraph_add_thunk): New.
        ...

One strange thing about that commit is that it added calls to
record_loop_exits in ira.c, but the ChangeLog entry doesn't mention
ira.c, and nothing else in the commit seems related to loops or ira.  A
local hack that got accidentally committed?

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https://bugs.launchpad.net/bugs/736661

Title:
  armel FTBFS due to compiler ICE

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