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)

	* config/pa/pa.h (REGISTER_MOVE_COST): Increase to 18 cost of
	move from floating point to shift amount register.

	Backport from mainline:
	2011-04-08  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

	PR target/48366
	* config/pa/pa.c (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: r172589