[Bug ipa/68064] New: [6 Regression] ICE: in meet_with, at ipa-cp.c:874

["trippels at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68064

            Bug ID: 68064
           Summary: [6 Regression] ICE: in meet_with, at ipa-cp.c:874
           Product: gcc
           Version: 6.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: ipa
          Assignee: unassigned at gcc dot gnu.org
          Reporter: trippels at gcc dot gnu.org
                CC: jamborm at gcc dot gnu.org
  Target Milestone: ---

r228491 causes during build of Chromium browser:

In file included from ../../v8/src/heap/heap.h:18:0,
                 from ../../v8/src/contexts.h:8,
                 from ../../v8/src/isolate.h:17,
                 from ../../v8/src/factory.h:8,
                 from ../../v8/src/bootstrapper.h:8,
                 from ../../v8/src/compiler/typer.cc:9:
../../v8/src/heap/spaces.h:3016:7: internal compiler error: in meet_with, at
ipa-cp.c:874
 class LargeObjectIterator : public ObjectIterator {
       ^
0x133609f ipcp_alignment_lattice::meet_with(unsigned int, unsigned int)
        ../../gcc/gcc/ipa-cp.c:874
0x1337eef propagate_alignment_accross_jump_function
        ../../gcc/gcc/ipa-cp.c:1615
0x1337eef propagate_constants_accross_call
        ../../gcc/gcc/ipa-cp.c:1958
0x133b548 propagate_constants_topo
        ../../gcc/gcc/ipa-cp.c:2825
0x133b548 ipcp_propagate_stage
        ../../gcc/gcc/ipa-cp.c:2922
0x133de5c ipcp_driver
        ../../gcc/gcc/ipa-cp.c:4581
0x133de5c execute
        ../../gcc/gcc/ipa-cp.c:4673
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Reducing...