r255402 - /branches/gimple-linterchange/gcc/gim...

[rguenth@gcc.gnu.org]

Author: rguenth
Date: Tue Dec  5 08:06:08 2017
New Revision: 255402

URL: https://gcc.gnu.org/viewcvs?rev=255402&root=gcc&view=rev
Log:
2017-12-05  Richard Biener  <rguenther@suse.de>

	* gimple-loop-interchange.cc (loop_cand::classify_simple_reduction):
	Simplify.
	(loop_cand::analyze_iloop_reduction_var): Reject dead reductions.
	(loop_cand::analyze_oloop_reduction_var): Likewise.  Simplify.
	(tree_loop_interchange::interchange_loops): Properly analyze
	scalar evolution before instantiating a SCEV.

Modified:
    branches/gimple-linterchange/gcc/gimple-loop-interchange.cc