frv-modes.def: Fix comment typos.

	* config/frv/frv-modes.def: Fix comment typos.
	(CC_NZ): Define new mode.
	* config/frv/frv-protos.h (frv_select_cc_mode): Declare.
	(condexec_intop_cmp_operator): Delete.
	* config/frv/frv.c (comparison_string): New function.
	(frv_print_operand): Use it to handle 'c' and 'C'.
	(relational_operator): Redefine in terms of integer_relational_operator
	and float_relational_operator.
	(signed_relational_operator, unsigned_relational_operator): Delete.
	(integer_relational_operator): New predicate, combining the above.
	Check the mode of the first operand but leave frv.md to check the rest.
	(float_relational_operator): Just check the mode of the first operand
	and leave frv.md to check the rest.
	(intop_compare_operator): Assume the result is compared with zero
	in mode CC_NZmode.  Allow PLUS and MINUS.  Leave frv.md to check
	the operand predicates.
	(condexec_intop_cmp_operator): Delete.
	(frv_ifcvt_modify_tests, frv_ifcvt_modify_multiple_tests)
	(frv_hard_regno_mode_ok): Handle CC_NZmode.
	(frv_select_cc_mode): New function.
	* config/frv/frv.h (SELECT_CC_MODE): Use frv_select_cc_mode.
	(REVERSIBLE_CC_MODE): Include CC_NZmode.
	(PREDICATE_CODES): Replace entries for signed_relational_operand and
	unsigned_relational_operator with one for integer_relational_operator.
	Delete entry for condexec_intop_cmp_operator.
	* config/frv/frv.md (movcc_nz, *internal_movcc_nz, reload_incc_nz)
	(reload_outcc_nz, *cmpsi_cc_nz, *cond_exec_cmpsi_cc_nz): New patterns.
	(*combo_intop_compare2, *combo_intop_compare4): Delete.
	(*combo_intop_compare1): Change mode to CC_NZ.
	(*combo_intop_compare2): Likewise.  Renamed from *combo_intop_compare3.
	(branch_{un,}signed_true, branch_{un,}signed_false)
	(*scc_{un,}signed, *scc_neg1_{un,}signed, *ck_{un,}signed)
	(*movqicc_internal1_{un,}signed, *movqicc_internal2_{un,}signed)
	(*movhicc_internal1_{un,}signed, *movhicc_internal2_{un,}signed)
	(*movsicc_internal1_{un,}signed, *movsicc_internal2_{un,}signed)
	(*movsfcc_has_fprs_{un,}signed, *movsfcc_no_fprs_{un,}signed)
	(*return_{unsigned_,}true, *return_{unsigned_,}false): Merge these
	pattern pairs.  Use integer_relational_operator.  Remove mode from
	icc_operand.

From-SVN: r91997

1 files changed, 6 insertions, 4 deletions

diff --git a/gcc/config/frv/frv-modes.def b/gcc/config/frv/frv-modes.def
index 229a97399f1..cab8c16837f 100644
--- a/gcc/config/frv/frv-modes.def
+++ b/gcc/config/frv/frv-modes.def
@@ -20,12 +20,14 @@ Boston, MA 02111-1307, USA.  */
 
 /* On the FRV, the CC modes used are:
 
-   CCmode	set ICC's from comparing signed integers
-   CC_UNSmode	set ICC's from comparing unsigned integers
-   CC_FPmode	set FCC's from comparing floating point
-   CC_CCRmode	set CCR's to do conditional execution */
+   CCmode	set ICCs from comparing signed integers
+   CC_UNSmode	set ICCs from comparing unsigned integers
+   CC_NZmode	set ICCs for comparisons that just need the Z and N flags
+   CC_FPmode	set FCCs from comparing floating point
+   CC_CCRmode	set CCRs to do conditional execution */
 
 CC_MODE (CC_UNS);
+CC_MODE (CC_NZ);
 CC_MODE (CC_FP);
 CC_MODE (CC_CCR);