From: Kazu Hirata <kazu@cs.umass.edu>
Date: Sat, 7 Sep 2002 20:21:43 +0000 (+0000)
Subject: h8300.md (udivmodqi4): Split the pattern into an expander and an anonymous pattern.
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=5c102b484adc71da720b768b8f96386d23974a8f;p=gcc.git

h8300.md (udivmodqi4): Split the pattern into an expander and an anonymous pattern.

	* config/h8300/h8300.md (udivmodqi4): Split the pattern into
	an expander and an anonymous pattern.  Zero out the upper half
	of the dividend in the expander.
	(udivmodqi4): Likewise.

From-SVN: r56923
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 74f035a63b3..a5d97bf4702 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,10 @@
+2002-09-07  Kazu Hirata  <kazu@cs.umass.edu>
+
+	* config/h8300/h8300.md (udivmodqi4): Split the pattern into
+	an expander and an anonymous pattern.  Zero out the upper half
+	of the dividend in the expander.
+	(udivmodqi4): Likewise.
+
 2002-09-07  Kazu Hirata  <kazu@cs.umass.edu>
 
 	* config/h8300/h8300.c: Fix formatting.
diff --git a/gcc/config/h8300/h8300.md b/gcc/config/h8300/h8300.md
index 822367dc790..50d3e4f4249 100644
--- a/gcc/config/h8300/h8300.md
+++ b/gcc/config/h8300/h8300.md
@@ -911,7 +911,25 @@
 ;; DIVIDE/MOD INSTRUCTIONS
 ;; ----------------------------------------------------------------------
 
-(define_insn "udivmodqi4"
+(define_expand "udivmodqi4"
+  [(set (match_operand:HI 1 "register_operand" "")
+	(and:HI (match_dup 1)
+		(const_int 255)))
+   (parallel [(set (match_operand:QI 0 "register_operand" "")
+		   (truncate:QI
+		     (udiv:HI
+		       (match_dup 1)
+		       (zero_extend:HI
+			 (match_operand:QI 2 "register_operand" "")))))
+	      (set (match_operand:QI 3 "register_operand" "")
+		   (truncate:QI
+		     (umod:HI
+		       (match_dup 1)
+		       (zero_extend:HI (match_dup 2)))))])]
+  "TARGET_H8300H || TARGET_H8300S"
+  "")
+
+(define_insn ""
   [(set (match_operand:QI 0 "register_operand" "=r")
 	(truncate:QI
 	  (udiv:HI
@@ -955,7 +973,25 @@
   [(set_attr "length" "6")
    (set_attr "cc" "clobber")])
 
-(define_insn "udivmodhi4"
+(define_expand "udivmodhi4"
+  [(set (match_operand:SI 1 "register_operand" "")
+	(and:SI (match_dup 1)
+		(const_int 65535)))
+   (parallel [(set (match_operand:HI 0 "register_operand" "")
+		   (truncate:HI
+		     (udiv:SI
+		       (match_dup 1)
+		       (zero_extend:SI
+			 (match_operand:HI 2 "register_operand" "")))))
+	      (set (match_operand:HI 3 "register_operand" "")
+		   (truncate:HI
+		     (umod:SI
+		       (match_dup 1)
+		       (zero_extend:SI (match_dup 2)))))])]
+  "TARGET_H8300H || TARGET_H8300S"
+  "")
+
+(define_insn ""
   [(set (match_operand:HI 0 "register_operand" "=r")
 	(truncate:HI
 	  (udiv:SI