--- rpl/lapack/blas/daxpy.f	2010/12/21 13:51:24	1.6
+++ rpl/lapack/blas/daxpy.f	2011/07/22 07:38:01	1.7
@@ -29,39 +29,41 @@
 *     ..
       IF (N.LE.0) RETURN
       IF (DA.EQ.0.0d0) RETURN
-      IF (INCX.EQ.1 .AND. INCY.EQ.1) GO TO 20
+      IF (INCX.EQ.1 .AND. INCY.EQ.1) THEN
+*
+*        code for both increments equal to 1
+*
+*
+*        clean-up loop
+*
+         M = MOD(N,4)
+         IF (M.NE.0) THEN
+            DO I = 1,M
+               DY(I) = DY(I) + DA*DX(I)
+            END DO
+         END IF
+         IF (N.LT.4) RETURN
+         MP1 = M + 1
+         DO I = MP1,N,4
+            DY(I) = DY(I) + DA*DX(I)
+            DY(I+1) = DY(I+1) + DA*DX(I+1)
+            DY(I+2) = DY(I+2) + DA*DX(I+2)
+            DY(I+3) = DY(I+3) + DA*DX(I+3)
+         END DO
+      ELSE
 *
 *        code for unequal increments or equal increments
 *          not equal to 1
 *
-      IX = 1
-      IY = 1
-      IF (INCX.LT.0) IX = (-N+1)*INCX + 1
-      IF (INCY.LT.0) IY = (-N+1)*INCY + 1
-      DO 10 I = 1,N
+         IX = 1
+         IY = 1
+         IF (INCX.LT.0) IX = (-N+1)*INCX + 1
+         IF (INCY.LT.0) IY = (-N+1)*INCY + 1
+         DO I = 1,N
           DY(IY) = DY(IY) + DA*DX(IX)
           IX = IX + INCX
           IY = IY + INCY
-   10 CONTINUE
-      RETURN
-*
-*        code for both increments equal to 1
-*
-*
-*        clean-up loop
-*
-   20 M = MOD(N,4)
-      IF (M.EQ.0) GO TO 40
-      DO 30 I = 1,M
-          DY(I) = DY(I) + DA*DX(I)
-   30 CONTINUE
-      IF (N.LT.4) RETURN
-   40 MP1 = M + 1
-      DO 50 I = MP1,N,4
-          DY(I) = DY(I) + DA*DX(I)
-          DY(I+1) = DY(I+1) + DA*DX(I+1)
-          DY(I+2) = DY(I+2) + DA*DX(I+2)
-          DY(I+3) = DY(I+3) + DA*DX(I+3)
-   50 CONTINUE
+         END DO
+      END IF
       RETURN
       END