i386.md (*indirect_jump): Macroize using P mode iterator.

	* config/i386/i386.md (*indirect_jump): Macroize using P
	mode iterator.  Remove !TARGET_64BIT from insn constraints.
	(*tablejump_1): Ditto.
	(*indirect_jump_rex64): Remove insn pattern.
	(*tablejump_1_rex64): Ditto.
	(eh_return_<mode>): Macroize using P mode iterator from eh_return_di
	and eh_return_si insn patterns.

From-SVN: r136431