/*        Generated by TAPENADE     (INRIA, Tropics team)
    Tapenade 3.7 (r4786) - 21 Feb 2013 15:53
*/
#include "cstd.h"

/*
  Differentiation of acd_2d_8 in forward (tangent) mode:
   variations   of useful results: **up
   with respect to varying inputs: **csq **uc **up
   RW status of diff variables: **csq:in **uc:in **up:in-out
   Plus diff mem management of: csq:in *csq:in uc:in *uc:in up:in
                *up:in
*/
void acd_2d_8_d(float **uc, float **ucd, float **up, float **upd, float **csq,
        float **csqd, int *s, int *e, float c0, float *c1, float *c2, float *
        c3, float *c4, int *lbc, int *rbc) {
    int i0, i1;
    for (i1 = s[1]; i1 < e[1]+1; ++i1)
#pragma ivdep
        for (i0 = s[0]; i0 < e[0]+1; ++i0) {
            float lap = (c0*uc[i1][i0]	+
                         c1[0]*(uc[i1][i0+1] + uc[i1][i0-1]) +
                         c1[1]*(uc[i1+1][i0] + uc[i1-1][i0]) +
                         c2[0]*(uc[i1][i0+2] + uc[i1][i0-2]) +
                         c2[1]*(uc[i1+2][i0] + uc[i1-2][i0]) +
                         c3[0]*(uc[i1][i0+3] + uc[i1][i0-3]) +
                         c3[1]*(uc[i1+3][i0] + uc[i1-3][i0]) +
                         c4[0]*(uc[i1][i0+4] + uc[i1][i0-4]) +
                         c4[1]*(uc[i1+4][i0] + uc[i1-4][i0]));
            float lapd = (c0*ucd[i1][i0]	+
                         c1[0]*(ucd[i1][i0+1] + ucd[i1][i0-1]) +
                         c1[1]*(ucd[i1+1][i0] + ucd[i1-1][i0]) +
                         c2[0]*(ucd[i1][i0+2] + ucd[i1][i0-2]) +
                         c2[1]*(ucd[i1+2][i0] + ucd[i1-2][i0]) +
                         c3[0]*(ucd[i1][i0+3] + ucd[i1][i0-3]) +
                         c3[1]*(ucd[i1+3][i0] + ucd[i1-3][i0]) +
                         c4[0]*(ucd[i1][i0+4] + ucd[i1][i0-4]) +
                         c4[1]*(ucd[i1+4][i0] + ucd[i1-4][i0]));
            
            upd[i1][i0] = 2.0*ucd[i1][i0] - upd[i1][i0] + csqd[i1][i0]*lap + csq[i1][i0]*lapd;
            up[i1][i0] = 2.0*uc[i1][i0] - up[i1][i0] + csq[i1][i0]*lap;
        }
    /* boundary conditions - note that uc[-1][i]=0 etc. */
    if (lbc[1])
#pragma ivdep
        for (i0 = s[0]; i0 < e[0]+1; ++i0) {
            upd[s[1] - 2][i0] = -upd[s[1]+0][i0];
            up[s[1] - 2][i0] = -up[s[1]+0][i0];
            upd[s[1] - 3][i0] = -upd[s[1]+1][i0];
            up[s[1] - 3][i0] = -up[s[1]+1][i0];
            upd[s[1] - 4][i0] = -upd[s[1]+2][i0];
            up[s[1] - 4][i0] = -up[s[1]+2][i0];
        }
    if (rbc[1])
#pragma ivdep
        for (i0 = s[0]; i0 < e[0]+1; ++i0) {
            upd[e[1] + 2][i0] = -upd[e[1]-0][i0];
            up[e[1] + 2][i0] = -up[e[1]-0][i0];
            upd[e[1] + 3][i0] = -upd[e[1]-1][i0];
            up[e[1] + 3][i0] = -up[e[1]-1][i0];
            upd[e[1] + 4][i0] = -upd[e[1]-2][i0];
            up[e[1] + 4][i0] = -up[e[1]-2][i0];
        }
    if (lbc[0])
#pragma ivdep
        for (i1 = s[1]; i1 < e[1]+1; ++i1) {
            upd[i1][s[0] - 2] = -upd[i1][s[0]+0];
            up[i1][s[0] - 2] = -up[i1][s[0]+0];
            upd[i1][s[0] - 3] = -upd[i1][s[0]+1];
            up[i1][s[0] - 3] = -up[i1][s[0]+1];
            upd[i1][s[0] - 4] = -upd[i1][s[0]+2];
            up[i1][s[0] - 4] = -up[i1][s[0]+2];
        }
    if (rbc[0])
#pragma ivdep
        for (i1 = s[1]; i1 < e[1]+1; ++i1) {
            upd[i1][e[0] + 2] = -upd[i1][e[0]-0];
            up[i1][e[0] + 2] = -up[i1][e[0]-0];
            upd[i1][e[0] + 3] = -upd[i1][e[0]-1];
            up[i1][e[0] + 3] = -up[i1][e[0]-1];
            upd[i1][e[0] + 4] = -upd[i1][e[0]-2];
            up[i1][e[0] + 4] = -up[i1][e[0]-2];
        }
}