| ! { dg-do compile } |
| ! { dg-options "-fgraphite -O -ffast-math" } |
| |
| MODULE powell |
| INTEGER, PARAMETER :: dp=8 |
| CONTAINS |
| SUBROUTINE trsapp (n,npt,xopt,xpt,gq,hq,pq,delta,step,d,g,hd,hs,crvmin) |
| REAL(dp), DIMENSION(*), INTENT(INOUT) :: step, d, g, hd, hs |
| LOGICAL :: jump1, jump2 |
| REAL(dp) :: alpha, angle, angtest, bstep, cf, cth, dd, delsq, dg, dhd, & |
| reduc, sg, sgk, shs, ss, sth, temp, tempa, tempb |
| DO i=1,n |
| dd=dd+d(i)**2 |
| END DO |
| mainloop : DO |
| IF ( .NOT. jump2 ) THEN |
| IF ( .NOT. jump1 ) THEN |
| bstep=temp/(ds+SQRT(ds*ds+dd*temp)) |
| IF (alpha < bstep) THEN |
| IF (ss < delsq) CYCLE mainloop |
| END IF |
| IF (gg <= 1.0e-4_dp*ggbeg) EXIT mainloop |
| END IF |
| END IF |
| END DO mainloop |
| END SUBROUTINE trsapp |
| END MODULE powell |
