[Bug ipa/66764] New: ICE in analyze_function() on AIX

[dje at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66764

            Bug ID: 66764
           Summary: ICE in analyze_function() on AIX
           Product: gcc
           Version: 6.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: ipa
          Assignee: unassigned at gcc dot gnu.org
          Reporter: dje at gcc dot gnu.org
  Target Milestone: ---
            Target: powerpc-ibm-aix*

Analyzing compilation unit

Breakpoint 1, fancy_abort(char const*, int, char const*) ()
    at /nasfarm/edelsohn/src/src/gcc/diagnostic.c:1340
1340      internal_error ("in %s, at %s:%d", function, trim_filename (file),
line);
(gdb) up
#1  0x10f2fa10 in symtab_node::get_alias_target (this=<error reading variable>)
(gdb) up
#2  0x10872574 in analyze_functions(bool) ()
    at /nasfarm/edelsohn/src/src/gcc/cgraphunit.c:969
969               node->fixup_same_cpp_alias_visibility (node->get_alias_target
());

(gdb) print (ipa_ref) ref 
$2 = {referring = 0x0, referred = 0xd, stmt = 0x2ff22670, 
  lto_stmt_uid = 17316952, referred_index = 2, use = IPA_REF_STORE, 
  speculative = 1}