re PR target/48366 (ICE in extract_constrain_insn_cached, at recog.c:2024)

re PR target/48366 (ICE in extract_constrain_insn_cached, at recog.c:2024)

	PR target/48366
	* config/pa/pa.c (hppa_register_move_cost): Increase to 18 cost of
	move from floating point to shift amount register .
	(emit_move_sequence): Remove secondary reload support for floating
	point to shift amount amount register copies.
	(pa_secondary_reload): Return GENERAL_REGS for floating point/shift
	amount register copies.
	* config/pa/pa32-regs.h (HARD_REGNO_MODE_OK): For shift amount
	register, return false if mode isn't a scalar integer mode.
	* config/pa/pa64-regs.h (HARD_REGNO_MODE_OK): Likewise.

From-SVN: r172197