contraints.md: New file.

contraints.md: New file.

2006-10-17  Wolfgang Gellerich  <gellerich@de.ibm.com>

	* config/s390/contraints.md: New file.
        * config/s390/s390-protos.h (s390_mem_constraint,
	s390_O_constraint_str, s390_N_constraint_str,
	s390_float_const_zero_p): Function prototypes added.
	* config/s390/s390.c (s390_extra_constraint_str,
	s390_const_double_ok_for_constraint_p,
	s390_const_ok_for_constraint_p): Functions removed.
        (s390_mem_constraint, s390_O_constraint_str, s390_N_constraint_str,
	s390_float_const_zero_p): New functions.
	* config/s390/s390.h (REG_CLASS_FROM_LETTER, CONST_OK_FOR_CONSTRAINT_P,
	CONST_DOUBLE_OK_FOR_CONSTRAINT_P, EXTRA_CONSTRAINT_STR,
	EXTRA_MEMORY_CONSTRAINT, EXTRA_ADDRESS_CONSTRAINT, CONSTRAINT_LEN):
	Macro definitions removed.
	(s390_const_ok_for_constraint_p, s390_const_double_ok_for_constraint_p,
	s390_extra_constraint_str): Functions removed.

From-SVN: r117826