re PR target/77826 (ICE in decompose, at wide-int.h:928 w/ -m64 -O2 and above)

re PR target/77826 (ICE in decompose, at wide-int.h:928 w/ -m64 -O2 and above)

2016-10-05  Richard Biener  <rguenther@suse.de>

	PR middle-end/77826
	* genmatch.c (dt_operand::gen_match_op): Amend operand_equal_p
	with types_match for GIMPLE code gen to handle type mismatched
	constants properly.
	(dt_operand::gen): Adjust.
	* match.pd ((X /[ex] A) * A -> X): Properly handle converted
	and constant A.

	* gcc.dg/torture/pr77826.c: New testcase.

From-SVN: r240776