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[Bug tree-optimization/28411] gfortran: Internal error: Illegal instruction
- From: "pinskia at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 18 Jul 2006 08:10:40 -0000
- Subject: [Bug tree-optimization/28411] gfortran: Internal error: Illegal instruction
- References: <bug-28411-10129@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #6 from pinskia at gcc dot gnu dot org 2006-07-18 08:10 -------
(In reply to comment #5)
> This error can be tracked down to fold_negate_expr() returning NULL_TREE via
> this path:
>
> (a) constant_multiple_of() calls fold_unary_to_constant():
This tells you that constant_multiple_of is not able to handle NULL_TREEs for
the return of fold_unary_to_constant which is correct as the negative of
0x80000000 will trap.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=28411