i386.md (*jcc_bt<mode>): Only split before reload.

i386.md (*jcc_bt<mode>): Only split before reload.

	* config/i386/i386.md (*jcc_bt<mode>): Only split before reload.
	Remove operand constraints.  Change operand 2 predicate to
	nonmemory operand.  Limit const_int values to mode bitsize.  Only
	allow const_int values less than 32 when optimizing for size.
	(*jcc_bt<mode>_1, *jcc_bt<mode>_mask): Only split before reload.
	Remove operand constraints.
	(*bt<mode>): Use SImode for const_int values less than 32.
	(regmode): Remove mode attribute.

testsuite/ChangeLog:

	* gcc.target/i386/bt-3.c: New test.
	* gcc.target/i386/bt-4.c: Ditto.

From-SVN: r225527