* config/h8300/h8300.md (a peephole2): Tighten the condition.

From-SVN: r65174

gcc/ChangeLog

+2003-04-02  Kazu Hirata  <kazu@cs.umass.edu>
+
+	* config/h8300/h8300.md (a peephole2): Tighten the condition.
+
 2003-04-02  Richard Henderson  <rth@redhat.com>
 
 	* longlong.h (umul_ppmm) [alpha]: Use __builtin_alpha_umulh.

gcc/config/h8300/h8300.md

@@ -4308,7 +4308,16 @@
 		  gen_rtx_EQ (VOIDmode, cc0_rtx, const0_rtx));
    operands[5] = GEN_INT (exact_log2 (INTVAL (operands[1]) + 1));")
 
-;; Transform A <= 1 to (A & 0xfffffffe) == 0.
+;; Transform
+;;
+;;	cmp.l	#15,er0
+;;	bhi	.L1
+;;
+;; into
+;;
+;;	and	#240,r0l
+;;	mov.l	er0,er0
+;;	bne	.L1
 
 (define_peephole2
   [(set (cc0)
@@ -4321,8 +4330,7 @@
 		      (pc)))]
   "(TARGET_H8300H || TARGET_H8300S)
    && peep2_reg_dead_p (1, operands[0])
-   && (INTVAL (operands[1]) == 1
-       || INTVAL (operands[1]) == 3
+   && ((TARGET_H8300H && INTVAL (operands[1]) == 3)
        || INTVAL (operands[1]) == 7
        || INTVAL (operands[1]) == 15
        || INTVAL (operands[1]) == 31