From dcef6abaf507eb9a29d837004460f2f15bb78b7c Mon Sep 17 00:00:00 2001
From: Bernd Schmidt <bernd.schmidt@analog.com>
Date: Wed, 5 Apr 2006 22:03:30 +0000
Subject: [PATCH] lib1funcs.asm (modsi): P1/P2 can be call-clobbered even if
 the calling function doesn't modify them.

	* config/bfin/lib1funcs.asm (modsi): P1/P2 can be call-clobbered
	even if the calling function doesn't modify them.

From-SVN: r112720
---
 gcc/ChangeLog                 |  3 +++
 gcc/config/bfin/lib1funcs.asm | 15 +++++++--------
 2 files changed, 10 insertions(+), 8 deletions(-)

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 460217491bf4..c630968caaf4 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -3,6 +3,9 @@
 	* config/bfin/bfin.c (bfin_legitimate_address_p): Disallow
 	got-relative addressing for anything but SImode.
 
+	* config/bfin/lib1funcs.asm (modsi): P1/P2 can be call-clobbered
+	even if the calling function doesn't modify them.
+
 2006-04-05  Richard Guenther  <rguenther@suse.de>
 
 	PR tree-optimization/26919
diff --git a/gcc/config/bfin/lib1funcs.asm b/gcc/config/bfin/lib1funcs.asm
index 22e8a02a33ad..77d4fff069bf 100644
--- a/gcc/config/bfin/lib1funcs.asm
+++ b/gcc/config/bfin/lib1funcs.asm
@@ -64,17 +64,16 @@ ___divsi3:
 .type ___modsi3, STT_FUNC;
 
 ___modsi3:
-        [--SP] = RETS;
-	/* P1 and P2 are preserved by divsi3 and udivsi3.  */
-	P1 = R0;
-	P2 = R1;
-        CALL ___divsi3;
-	R1 = P1;
-	R2 = P2;
+	[--SP] = RETS;
+	[--SP] = R0;
+	[--SP] = R1;
+	CALL ___divsi3;
+	R2 = [SP++];
+	R1 = [SP++];
 	R2 *= R0;
 	R0 = R1 - R2;
 	RETS = [SP++];
-        RTS; 
+	RTS; 
 #endif
 
 #ifdef L_udivsi3