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c { dg-do compile }

      SUBROUTINE SGBTRF( M, KL, KU, AB, LDAB )

*  PR fortran/275

*  ICE in `change_address', at emit-rtl.c:1589 with -O1 and above

*  g77 version 2.96 20000530 (experimental) on mips-sgi-irix6.5/-mabi=64

*

*  Originally derived from LAPACK 3.0 test suite failure.

*

*  David Billinghurst, (David.Billinghurst@riotinto.com.au)

*  1 June 2000

      INTEGER   KL, KU, LDAB, M

      REAL      AB( LDAB, * )

      INTEGER   J, JB, JJ, JP, KV, KM

      REAL      WORK13(65,64), WORK31(65,64)

      KV = KU + KL

      DO J = 1, M

         JB = MIN( 1, M-J+1 )

         DO JJ = J, J + JB - 1

            KM = MIN( KL, M-JJ )

            JP = KM+1

            CALL SSWAP( JB, AB( KV+1+JJ-J, J ), LDAB-1,

     $           AB( KV+JP+JJ-J, J ), LDAB-1 )

         END DO

      END DO

      RETURN

      END