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[Bug fortran/72743] ICE in get_constraint_for_ssa_var, at tree-ssa-structalias.c:2958


https://gcc.gnu.org/bugzilla/show_bug.cgi?id=72743

Richard Biener <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2016-07-29
     Ever confirmed|0                           |1
      Known to fail|                            |6.1.1, 7.0

--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
Hmm, this sounds familiar (there is/was a dup I think):

#1  0x0000000001188c25 in get_constraint_for_ssa_var (t=
Python Exception <class 'gdb.error'> There is no member or method named
m_vecpfx.: 
    <var_decl 0x7ffff7ff6b40 A.0>, results=0x7fffffffd5f0, address_p=true)
    at /space/rguenther/src/svn/trunk/gcc/tree-ssa-structalias.c:2942
2942              gcc_assert ((! DECL_PT_UID_SET_P (node->decl)
(gdb) l
2937            {
2938              node = node->ultimate_alias_target ();
2939              /* Canonicalize the PT uid of all aliases to the ultimate
target.
2940                 ???  Hopefully the set of aliases can't change in a way
that
2941                 changes the ultimate alias target.  */
2942              gcc_assert ((! DECL_PT_UID_SET_P (node->decl)
2943                           || DECL_PT_UID (node->decl) == DECL_UID
(node->decl))
2944                          && (! DECL_PT_UID_SET_P (t)
2945                              || DECL_PT_UID (t) == DECL_UID
(node->decl)));
2946              DECL_PT_UID (t) = DECL_UID (node->decl);

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