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List:       gcc-bugs
Subject:    [Bug ipa/79762] New: [CHKP] [6/7 Regression] ICE in verify_cgraph_node failed (node is weakref but n
From:       "marxin at gcc dot gnu.org" <gcc-bugzilla () gcc ! gnu ! org>
Date:       2017-02-28 22:38:32
Message-ID: bug-79762-4 () http ! gcc ! gnu ! org/bugzilla/
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79762

            Bug ID: 79762
           Summary: [CHKP] [6/7 Regression] ICE in verify_cgraph_node
                    failed (node is weakref but not an transparent_alias)
           Product: gcc
           Version: 7.0
            Status: UNCONFIRMED
          Keywords: ice-on-valid-code
          Severity: normal
          Priority: P3
         Component: ipa
          Assignee: unassigned at gcc dot gnu.org
          Reporter: marxin at gcc dot gnu.org
                CC: hubicka at ucw dot cz, ienkovich at gcc dot gnu.org
  Target Milestone: ---

Starting from introduction of transparent aliases (r231373), we ICE on:

$ gcc /home/marxin/Programming/gcc/gcc/testsuite/gcc.dg/lto/attr-weakref-1_2.c
-mmpx -fcheck-pointer-bounds

/home/marxin/Programming/gcc/gcc/testsuite/gcc.dg/lto/attr-weakref-1_2.c:8:1:
error: node is weakref but not an transparent_alias
 }
 ^
callmealias.chkp/5 (callmealias.chkp) @0x7f48a38d5450
  Type: function alias weakref target:callmefirst
  Visibility: weak
  References: 
  Referring: 
  Availability: not_available
  First run: 0
  Function flags:
  Called by: c.chkp/2 (1.00 per call) 
  Calls: 
  Is instrumented version.
/home/marxin/Programming/gcc/gcc/testsuite/gcc.dg/lto/attr-weakref-1_2.c:8:1:
internal compiler error: verify_cgraph_node failed
0x8a2c1b cgraph_node::verify_node()
        ../../gcc/cgraph.c:3490
0x890d7b symtab_node::verify()
        ../../gcc/symtab.c:1183
0x890e1f symtab_node::verify_symtab_nodes()
        ../../gcc/symtab.c:1203
0xb36af5 symtab_node::checking_verify_symtab_nodes()
        ../../gcc/cgraph.h:616
0xb36af5 symbol_table::remove_unreachable_nodes(_IO_FILE*)
        ../../gcc/ipa.c:698
0xc561ee execute_todo
        ../../gcc/passes.c:2030=
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