h8300-protos.h: Add a prototype for compute_a_shift_cc.

	* config/h8300/h8300-protos.h: Add a prototype for
	compute_a_shift_cc.
	* config/h8300/h8300.c (shift_one): Update the CC status.
	(shift_two): Likewise.
	(output_a_shift_cc): Set cc_inline and cc_special.
	(compute_a_shift_cc): New.
	* config/h8300/h8300.md (shift insns): Use compute_a_shift_cc.

From-SVN: r65251

gcc/ChangeLog

+2003-04-04  Kazu Hirata  <kazu@cs.umass.edu>
+
+	* config/h8300/h8300-protos.h: Add a prototype for
+	compute_a_shift_cc.
+	* config/h8300/h8300.c (shift_one): Update the CC status.
+	(shift_two): Likewise.
+	(output_a_shift_cc): Set cc_inline and cc_special.
+	(compute_a_shift_cc): New.
+	* config/h8300/h8300.md (shift insns): Use compute_a_shift_cc.
+
 2003-04-04  Richard Henderson  <rth@redhat.com>
 
 	* cse.c (fold_rtx): Fix 03-30 change; do check insn non-null.

gcc/config/h8300/h8300-protos.h

@@ -31,6 +31,7 @@ extern unsigned int compute_plussi_length PARAMS ((rtx *));
 extern int compute_plussi_cc PARAMS ((rtx *));
 extern const char *output_a_shift PARAMS ((rtx *));
 extern unsigned int compute_a_shift_length PARAMS ((rtx, rtx *));
+extern int compute_a_shift_cc PARAMS ((rtx, rtx *));
 extern const char *emit_a_rotate PARAMS ((enum rtx_code, rtx *));
 extern const char *output_simode_bld PARAMS ((int, rtx[]));
 extern void print_operand_address PARAMS ((FILE *, rtx));

gcc/config/h8300/h8300.md

@@ -2272,7 +2272,8 @@
   "* return output_a_shift (operands);"
   [(set (attr "length")
 	(symbol_ref "compute_a_shift_length (insn, operands)"))
-   (set_attr "cc" "clobber")])
+   (set (attr "cc")
+	(symbol_ref "compute_a_shift_cc (insn, operands)"))])
 
 ;; HI BIT SHIFTS
 
@@ -2307,7 +2308,8 @@
   "* return output_a_shift (operands);"
   [(set (attr "length")
 	(symbol_ref "compute_a_shift_length (insn, operands)"))
-   (set_attr "cc" "clobber")])
+   (set (attr "cc")
+	(symbol_ref "compute_a_shift_cc (insn, operands)"))])
 
 ;;  SI BIT SHIFTS
 
@@ -2342,7 +2344,8 @@
   "* return output_a_shift (operands);"
   [(set (attr "length")
 	(symbol_ref "compute_a_shift_length (insn, operands)"))
-   (set_attr "cc" "clobber")])
+   (set (attr "cc")
+	(symbol_ref "compute_a_shift_cc (insn, operands)"))])
 
 ;; Split a variable shift into a loop.  If the register containing
 ;; the shift count dies, then we just use that register.