591   if (!snes->vec_func && (snes->jacobian || snes->jacobian_pre)) {  in SNESSetUpMatrixFree_Private()
592     Mat A = snes->jacobian, B = snes->jacobian_pre;  in SNESSetUpMatrixFree_Private()
767   if (!snes->jacobian && snes->mf && !snes->mf_operator && !snes->jacobian_pre) {  in SNESSetUpMatrices()
776   } else if (snes->mf_operator && !snes->jacobian_pre && !snes->jacobian) {  in SNESSetUpMatrices()
786   } else if (!snes->jacobian_pre) {  in SNESSetUpMatrices()
1098 …PetscCall(SNESSetJacobian(snes, snes->jacobian, snes->jacobian_pre, SNESComputeJacobianDefault, fu…  in SNESSetFromOptions()
1112 …PetscCall(SNESSetJacobian(snes, snes->jacobian, snes->jacobian_pre, SNESComputeJacobianDefaultColo…  in SNESSetFromOptions()
1171     PetscCall(KSPSetOperators(snes->ksp, snes->jacobian, snes->jacobian_pre));  in SNESSetFromOptions()
2251 …if (!snes->picard) PetscCall(MatDuplicate(snes->jacobian_pre, MAT_DO_NOT_COPY_VALUES, &snes->picar…  in SNESPicardComputeMFFunction()
2273 … Jacobian", (*sdm->ops->computepjacobian)(snes, x, snes->jacobian, snes->jacobian_pre, sdm->pctx));  in SNESPicardComputeFunction()
2274     PetscCall(MatMultAdd(snes->jacobian_pre, x, f, f));  in SNESPicardComputeFunction()
2276 … Jacobian", (*sdm->ops->computepjacobian)(snes, x, snes->jacobian, snes->jacobian_pre, sdm->pctx));  in SNESPicardComputeFunction()
2277     PetscCall(MatMult(snes->jacobian_pre, x, f));  in SNESPicardComputeFunction()
2803   else jacobian = snes->jacobian_pre;  in SNESTestJacobian()
2896     if (jacobian != snes->jacobian_pre) {  in SNESTestJacobian()
2897       jacobian = snes->jacobian_pre;  in SNESTestJacobian()
3033     Mat jacobian_presave = snes->jacobian_pre;  in SNESComputeJacobian()
3037     snes->jacobian_pre = B;  in SNESComputeJacobian()
3043     snes->jacobian_pre = jacobian_presave;  in SNESComputeJacobian()
3261     PetscCall(MatDestroy(&snes->jacobian_pre));  in SNESSetJacobian()
3263     snes->jacobian_pre = Pmat;  in SNESSetJacobian()
3294   if (Pmat) *Pmat = snes->jacobian_pre;  in SNESGetJacobian()
3308   if (!sdm->ops->computejacobian && snes->jacobian_pre) {  in SNESSetDefaultComputeJacobian()
3313 …PetscCall(PetscObjectTypeCompareAny((PetscObject)snes->jacobian_pre, &isdense, MATSEQDENSE, MATMPI…  in SNESSetDefaultComputeJacobian()
3314 …PetscCall(PetscObjectTypeCompareAny((PetscObject)snes->jacobian_pre, &ismf, MATMFFD, MATSHELL, NUL…  in SNESSetDefaultComputeJacobian()
3488   PetscCall(MatDestroy(&snes->jacobian_pre));  in SNESReset()