Merge pull request #4402 from martin-frbg/lapack967

Fix an uninitialized read (use of wrong variable) in ?BBCSD (Reference-LAPACK PR 967)

lapack-netlib/SRC/cbbcsd.f

@@ -805,7 +805,7 @@
                CALL SLARTGP( B22BULGE, B22E(I-1), RWORK(IU2SN+I-1),
      $                       RWORK(IU2CS+I-1), R )
             ELSE IF( NU .LT. MU ) THEN
-               CALL SLARTGS( B21E(I), B21E(I+1), NU, RWORK(IU2CS+I-1),
+               CALL SLARTGS( B21E(I), B21D(I+1), NU, RWORK(IU2CS+I-1),
      $                       RWORK(IU2SN+I-1) )
             ELSE
                CALL SLARTGS( B22D(I), B22E(I), MU, RWORK(IU2CS+I-1),

lapack-netlib/SRC/dbbcsd.f

@@ -805,7 +805,7 @@
                CALL DLARTGP( B22BULGE, B22E(I-1), WORK(IU2SN+I-1),
      $                       WORK(IU2CS+I-1), R )
             ELSE IF( NU .LT. MU ) THEN
-               CALL DLARTGS( B21E(I), B21E(I+1), NU, WORK(IU2CS+I-1),
+               CALL DLARTGS( B21E(I), B21D(I+1), NU, WORK(IU2CS+I-1),
      $                       WORK(IU2SN+I-1) )
             ELSE
                CALL DLARTGS( B22D(I), B22E(I), MU, WORK(IU2CS+I-1),

lapack-netlib/SRC/sbbcsd.f

@@ -805,7 +805,7 @@
                CALL SLARTGP( B22BULGE, B22E(I-1), WORK(IU2SN+I-1),
      $                       WORK(IU2CS+I-1), R )
             ELSE IF( NU .LT. MU ) THEN
-               CALL SLARTGS( B21E(I), B21E(I+1), NU, WORK(IU2CS+I-1),
+               CALL SLARTGS( B21E(I), B21D(I+1), NU, WORK(IU2CS+I-1),
      $                       WORK(IU2SN+I-1) )
             ELSE
                CALL SLARTGS( B22D(I), B22E(I), MU, WORK(IU2CS+I-1),

lapack-netlib/SRC/zbbcsd.f

@@ -804,7 +804,7 @@
                CALL DLARTGP( B22BULGE, B22E(I-1), RWORK(IU2SN+I-1),
      $                       RWORK(IU2CS+I-1), R )
             ELSE IF( NU .LT. MU ) THEN
-               CALL DLARTGS( B21E(I), B21E(I+1), NU, RWORK(IU2CS+I-1),
+               CALL DLARTGS( B21E(I), B21D(I+1), NU, RWORK(IU2CS+I-1),
      $                       RWORK(IU2SN+I-1) )
             ELSE
                CALL DLARTGS( B22D(I), B22E(I), MU, RWORK(IU2CS+I-1),