libgcc.S (___divhi3, ___modhi3): Fix long long divide and modulo sign problem.

	* config/c4x/libgcc.S (___divhi3, ___modhi3): Fix long long
	divide and modulo sign problem.

From-SVN: r24681

gcc/config/c4x/libgcc.S

@@ -958,7 +958,7 @@ ___divhi3:
 	ldi     *-ar2(4),r0
 	ldi     *-ar2(3),r1
 	bge	div1
-	negi	ir0
+	not	ir0
 	negi	r0
 	negb	r1
 div1:
@@ -967,7 +967,7 @@ div1:
 	ldi     *-ar2(2),r0
 	ldi     *-ar2(1),r1
 	bge	div2
-	negi	ir0
+	not	ir0
 	negi	r0
 	negb	r1
 div2:
@@ -995,7 +995,7 @@ ___modhi3:
 	ldi     *-ar2(4),r0
 	ldi     *-ar2(3),r1
 	bge	mod1
-	negi	ir0
+	not	ir0
 	negi	r0
 	negb	r1
 mod1:
@@ -1004,7 +1004,7 @@ mod1:
 	ldi     *-ar2(2),r0
 	ldi     *-ar2(1),r1
 	bge	mod2
-	negi	ir0
+	not	ir0
 	negi	r0
 	negb	r1
 mod2: