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! { dg-options "-O3 " }
SUBROUTINE IVSORT (IL,IH,NSEGS,IOUNIT)
INTEGER IOUNIT
INTEGER, PARAMETER :: MAXGS = 32
10 IF (IL .GE. IH) GO TO 80
20 NSEGS = (IH + IL) / 2
IF (NSEGS .GT. MAXSGS) THEN
WRITE (IOUNIT) MAXSGS
ENDIF
80 NSEGS = NSEGS - 1
90 IF (IH - IL .GE. 11) GO TO 20
110 IF (IL .EQ. IH) GO TO 80
END SUBROUTINE IVSORT
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