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* tree-data-ref.c (free_data_ref): Use DR_FREE_ACCESS_FNS macro.
(initialize_data_dependence_relation): Clear DDR_LOOP_NEST pointer
on newly allocated ddrs.
(find_loop_nest_1, find_loop_nest): Change LOOP_NEST to a pointer
to VEC (loop_p, heap) pointer.
(compute_data_dependences_for_loop): Adjust caller.
(free_dependence_relations): Free DDR_LOOP_NEST.
* tree-loop-linear.c (linear_transform_loops): Don't forget to
free DEPENDENCE_RELATIONS and DATAREFS.
* gcc.dg/pr29330.c: New test.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@117509 138bc75d-0d04-0410-961f-82ee72b054a4
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