36   Vec                     X, F, Y, W, G;  in SNESLineSearchApply_NLEQERR()  local
49   PetscCall(SNESLineSearchGetVecs(linesearch, &X, &F, &Y, &W, &G));  in SNESLineSearchApply_NLEQERR()
79     PetscCall(VecCopy(F, G));  in SNESLineSearchApply_NLEQERR()
99     PetscCall(VecWAXPY(G, +1.0, Y, W)); /* bar_delta_x - delta_x; +1 because Y is -delta_x */  in SNESLineSearchApply_NLEQERR()
100     PetscCall(VecNormBegin(G, NORM_2, &gnorm));  in SNESLineSearchApply_NLEQERR()
101     PetscCall(VecNormEnd(G, NORM_2, &gnorm));  in SNESLineSearchApply_NLEQERR()
147       PetscCall(VecWAXPY(G, -lambda, Y, X));  in SNESLineSearchApply_NLEQERR()
165     PetscCall(SNESComputeFunction(snes, W, G));  in SNESLineSearchApply_NLEQERR()
168     PetscCall(KSPSolve(snes->ksp, G, W));  in SNESLineSearchApply_NLEQERR()
185     PetscCall(VecWAXPY(G, -(1.0 - lambda), Y, W));  in SNESLineSearchApply_NLEQERR()
186     PetscCall(VecNorm(G, NORM_2, &gnorm));  in SNESLineSearchApply_NLEQERR()
208         PetscCall(VecWAXPY(G, -1.0, Y, X));  in SNESLineSearchApply_NLEQERR()
209         PetscCall(VecAXPY(G, -1.0, W));  in SNESLineSearchApply_NLEQERR()
224         PetscCall(VecWAXPY(G, -lambda, Y, X));  in SNESLineSearchApply_NLEQERR()
230   if (linesearch->ops->viproject) PetscCall((*linesearch->ops->viproject)(snes, G));  in SNESLineSearchApply_NLEQERR()
236   PetscCall(SNESLineSearchPostCheck(linesearch, X, Y, G, &changed_y, &changed_w));  in SNESLineSearchApply_NLEQERR()
248   PetscCall(VecCopy(G, X));  in SNESLineSearchApply_NLEQERR()