2005-07-13 Adrian Strae�tling <straetling@de.ibm.com>

2005-07-13  Adrian Strae�tling  <straetling@de.ibm.com>

	* config/s390/s390.c: (s390_cc_modes_compatible): Move before
	"s390_emit_compare".  Add handling of CCZ1mode.
	(s390_canonicalize_comparison): Simplify cascaded EQ, NE.
	(390_emit_compare): Use "s390_cc_modes_compatible" for mode
	checking.
	(s390_branch_condition_mask): Add CCZ1mode handling.
	* config/s390/s390.md: ("seq", "*seq"): New pattern.
	("sync_compare_and_swap_cc<mode>", "*sync_compare_and_swap_cc<mode>"):
	Use CCZ1mode instead of CCZmode.
	* config/s390/s390-modes.def: Add CCZ1mode.  Comment new mode.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@101990 138bc75d-0d04-0410-961f-82ee72b054a4