h8300.md (pushqi1_h8300hs): Optimize by pushing 2 bytes and then subtract 2 from the stack pointer.

	* config/h8300/h8300.md (pushqi1_h8300hs): Optimize by pushing
	2 bytes and then subtract 2 from the stack pointer.
	(pushhi1_h8300hs): Likewise.

From-SVN: r69042

gcc/ChangeLog

+2003-07-07  Kazu Hirata  <kazu@cs.umass.edu>
+
+	* config/h8300/h8300.md (pushqi1_h8300hs): Optimize by pushing
+	2 bytes and then subtract 2 from the stack pointer.
+	(pushhi1_h8300hs): Likewise.
+
 2003-07-07  Nathan Sidwell  <nathan@codesourcery.com>
 
 	* configure.in (enable_coverage): Remove -DSELF_COVERAGE, add

gcc/config/h8300/h8300.md

@@ -126,7 +126,7 @@
 		   (match_operand:QI 0 "register_operand" "r"))])]
   "(TARGET_H8300H || TARGET_H8300S)
    && REGNO (operands[0]) != SP_REG"
-  "mov.l\\t%S0,@-er7"
+  "mov.w\\t%f0,@-er7\;subs\\t#2,er7"
   [(set_attr "length" "4")
    (set_attr "cc" "clobber")])
 
@@ -218,7 +218,7 @@
 		   (match_operand:HI 0 "register_operand" "r"))])]
   "(TARGET_H8300H || TARGET_H8300S)
    && REGNO (operands[0]) != SP_REG"
-  "mov.l\\t%S0,@-er7"
+  "mov.w\\t%f0,@-er7\;subs\\t#2,er7"
   [(set_attr "length" "4")
    (set_attr "cc" "clobber")])