text: /*
  
      Copyright (C) 2014, The University of Texas at Austin
  
      This file is part of libflame and is available under the 3-Clause
      BSD license, which can be found in the LICENSE file at the top-level
      directory, or at http://opensource.org/licenses/BSD-3-Clause
  
  */
  
  #include "FLAME.h"
  
  #ifdef FLA_ENABLE_NON_CRITICAL_CODE
  
  FLA_Error FLA_Trmm_llc_unb_var2( FLA_Diag diagA, FLA_Obj alpha, FLA_Obj A, FLA_Obj B )
  {
    FLA_Obj ATL,   ATR,      A00,  a01,     A02, 
            ABL,   ABR,      a10t, alpha11, a12t,
                             A20,  a21,     A22;
  
    FLA_Obj BT,              B0,
            BB,              b1t,
                             B2;
  
    FLA_Scal_external( alpha, B );
  
    FLA_Part_2x2( A,    &ATL, &ATR,
                        &ABL, &ABR,     0, 0, FLA_BR );
  
    FLA_Part_2x1( B,    &BT, 
                        &BB,            0, FLA_BOTTOM );
  
    while ( FLA_Obj_length( ABR ) < FLA_Obj_length( A ) ){
  
      FLA_Repart_2x2_to_3x3( ATL, /**/ ATR,       &A00,  &a01,     /**/ &A02,
                                                  &a10t, &alpha11, /**/ &a12t,
                          /* ************* */   /* ************************** */
                             ABL, /**/ ABR,       &A20,  &a21,     /**/ &A22,
                             1, 1, FLA_TL );
  
      FLA_Repart_2x1_to_3x1( BT,                &B0, 
                                                &b1t, 
                          /* ** */            /* *** */
                             BB,                &B2,        1, FLA_TOP );
  
      /*------------------------------------------------------------*/
  
      /* B2  = B2 + a21 * b1t; */
      FLA_Gerc_external( FLA_CONJUGATE, FLA_NO_CONJUGATE, FLA_ONE, a21, b1t, B2 );
  
      /* b1t = alpha11 * b1t; */
      if ( diagA != FLA_UNIT_DIAG )
        FLA_Scalc_external( FLA_CONJUGATE, alpha11, b1t );
  
      /*------------------------------------------------------------*/
  
      FLA_Cont_with_3x3_to_2x2( &ATL, /**/ &ATR,       A00,  /**/ a01,     A02,
                              /* ************** */  /* ************************ */
                                                       a10t, /**/ alpha11, a12t,
                                &ABL, /**/ &ABR,       A20,  /**/ a21,     A22,
                                FLA_BR );
  
      FLA_Cont_with_3x1_to_2x1( &BT,                B0, 
                              /* ** */           /* *** */
                                                    b1t, 
                                &BB,                B2,     FLA_BOTTOM );
  
    }
  
    return FLA_SUCCESS;
  }
  
  #endif
  