2016-05-17 Richard Biener <rguenther@suse.de>
PR tree-optimization/71132
* tree-loop-distribution.c (create_rdg_cd_edges): Pass in loop.
Only add control dependences for blocks in the loop.
(build_rdg): Adjust.
(generate_code_for_partition): Return whether loop should
be destroyed and delay that.
(distribute_loop): Likewise.
(pass_loop_distribution::execute): Record loops to be destroyed
and perform delayed destroying of loops.
* gcc.dg/torture/pr71132.c: New testcase.
From-SVN: r236320
