From: kazu <kazu@138bc75d-0d04-0410-961f-82ee72b054a4>
Date: Thu, 13 Nov 2003 19:42:03 +0000 (+0000)
Subject: 	* config/h8300/lib1funcs.asm (udivsi3): Don't save/restore
X-Git-Tag: upstream/4.9.2~75353
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=8c98a03c6a1b0ec39c8341346bffd0eedad65649;p=platform%2Fupstream%2Flinaro-gcc.git

	* config/h8300/lib1funcs.asm (udivsi3): Don't save/restore
	unused registers.  Don't jump to exitdiv.
	(umodsi3): Likewise.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@73555 138bc75d-0d04-0410-961f-82ee72b054a4
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 31dfb24..646a7be 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+2003-11-13  Kazu Hirata  <kazu@cs.umass.edu>
+
+	* config/h8300/lib1funcs.asm (udivsi3): Don't save/restore
+	unused registers.  Don't jump to exitdiv.
+	(umodsi3): Likewise.
+
 2003-11-13  Mark Mitchell  <mark@codesourcery.com>
             Kean Johnston <jkj@sco.com>
 
diff --git a/gcc/config/h8300/lib1funcs.asm b/gcc/config/h8300/lib1funcs.asm
index d71a11e..5b16ce3 100644
--- a/gcc/config/h8300/lib1funcs.asm
+++ b/gcc/config/h8300/lib1funcs.asm
@@ -448,27 +448,40 @@ ___modsi3:
 
 	.global	___udivsi3
 ___udivsi3:
+#ifdef __H8300__
 	PUSHP	S2P
 	PUSHP	S0P
 	PUSHP	S1P
 	mov.b	#0,S2L	; keep sign low
 	bsr	divmodsi4
 	bra	exitdiv
+#else
+	;; H8/300H and H8S version of divmodsi4 does not clobber S1P or S2P.
+	PUSHP	S0P
+	bsr	divmodsi4
+	POPP	S0P
+	rts
+#endif
 
 	.global	___umodsi3
 ___umodsi3:
+#ifdef __H8300__
 	PUSHP	S2P
 	PUSHP	S0P
 	PUSHP	S1P
 	mov.b	#0,S2L	; keep sign low
 	bsr	divmodsi4
-#ifdef __H8300__
 	mov	S0,A0
 	mov	S1,A1
+	bra	exitdiv
 #else
+	;; H8/300H and H8S version of divmodsi4 does not clobber S1P or S2P.
+	PUSHP	S0P
+	bsr	divmodsi4
 	mov.l	S0P,A0P
+	POPP	S0P
+	rts
 #endif
-	bra	exitdiv
 
 	.global	___divsi3
 ___divsi3: