3 doublereal sasum_(integer *n, real *sx, integer *incx)
5 /* System generated locals */
7 real ret_val, r__1, r__2, r__3, r__4, r__5, r__6;
10 integer i__, m, mp1, nincx;
13 /* .. Scalar Arguments .. */
15 /* .. Array Arguments .. */
21 /* takes the sum of the absolute values. */
22 /* uses unrolled loops for increment equal to one. */
23 /* jack dongarra, linpack, 3/11/78. */
24 /* modified 3/93 to return if incx .le. 0. */
25 /* modified 12/3/93, array(1) declarations changed to array(*) */
28 /* .. Local Scalars .. */
30 /* .. Intrinsic Functions .. */
32 /* Parameter adjustments */
38 if (*n <= 0 || *incx <= 0) {
45 /* code for increment not equal to 1 */
50 for (i__ = 1; i__2 < 0 ? i__ >= i__1 : i__ <= i__1; i__ += i__2) {
51 stemp += (r__1 = sx[i__], dabs(r__1));
57 /* code for increment equal to 1 */
68 for (i__ = 1; i__ <= i__2; ++i__) {
69 stemp += (r__1 = sx[i__], dabs(r__1));
78 for (i__ = mp1; i__ <= i__2; i__ += 6) {
79 stemp = stemp + (r__1 = sx[i__], dabs(r__1)) + (r__2 = sx[i__ + 1],
80 dabs(r__2)) + (r__3 = sx[i__ + 2], dabs(r__3)) + (r__4 = sx[
81 i__ + 3], dabs(r__4)) + (r__5 = sx[i__ + 4], dabs(r__5)) + (
82 r__6 = sx[i__ + 5], dabs(r__6));