2007-08-24 Richard Guenther <rguenther@suse.de>
PR middle-end/33166
* tree-ssa.c (useless_type_conversion_p): Split into a
recursive and a non-recursive part.
(useless_type_conversion_p_1): New function.
* tree-ssa-ccp.c (fold_stmt_r): Make sure that the result
from maybe_fold_offset_to_reference is trivially convertible
to the desired type before doing the simplification.
* gcc.c-torture/compile/pr33166.c: New testcase.
From-SVN: r127771
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