re PR middle-end/78507 (ICE: tree check: expected integer_type or enumeral_type or boolean_type or real_type or fixed_point_type, have pointer_type in int_fits_type_p, at tree.c:9153)

	PR middle-end/78507
	PR middle-end/78510
	PR middle-end/78517
	* match.pd ((cond (cmp (convert1? @1) @3) (convert2? @1) @2)): Use
	cmp directly, rather than cmp_code.  Initialize code to ERROR_MARK
	and set it to result code if transformation is valid.  Use code EQ
	directly in last simplification case.

	gcc/testsuite
	PR middle-end/78507
	PR middle-end/78510
	PR middle-end/78517
	* g++.dg/torture/pr78507.C: New test.
	* gcc.dg/torture/pr78510.c: New test.
	* gcc.dg/torture/pr78517.c: New test.

From-SVN: r242874