re PR target/80101 (ICE in store_data_bypass_p, at recog.c:3737)

re PR target/80101 (ICE in store_data_bypass_p, at recog.c:3737)

gcc/testsuite/ChangeLog:

2017-05-08  Kelvin Nilsen  <kelvin@gcc.gnu.org>

	PR target/80101
	* gcc.target/powerpc/pr80101-1.c: New test.

gcc/ChangeLog:

2017-05-08  Kelvin Nilsen  <kelvin@gcc.gnu.org>

	PR target/80101
	* config/rs6000/power6.md: Replace store_data_bypass_p calls with
	rs6000_store_data_bypass_p in seven define_bypass directives and
	in several comments.
	* config/rs6000/rs6000-protos.h: Add prototype for
	rs6000_store_data_bypass_p function.
	* config/rs6000/rs6000.c (rs6000_store_data_bypass_p): New
	function implements slightly different (rs6000-specific) semantics
	than store_data_bypass_p, returning false rather than aborting
	with assertion error when arguments do not satisfy the
	requirements of store data bypass.
	(rs6000_adjust_cost): Replace six calls of store_data_bypass_p with
	rs6000_store_data_bypass_p.

From-SVN: r247777