! { dg-do compile }
! { dg-options "-O3" }
! PR fortran/36206

      SUBROUTINE SSPR(UPLO,N,ALPHA,X,INCX,AP)
      REAL ALPHA
      INTEGER INCX,N
      CHARACTER UPLO
      REAL AP(*),X(*)
      REAL ZERO
      PARAMETER (ZERO=0.0E+0)
      REAL TEMP
      INTEGER I,INFO,IX,J,JX,K,KK,KX
      LOGICAL LSAME
      EXTERNAL LSAME
      EXTERNAL XERBLA

      INFO = 0
      IF (.NOT.LSAME(UPLO,'U') .AND. .NOT.LSAME(UPLO,'L')) THEN
          INFO = 1
      ELSE IF (N.LT.0) THEN
          INFO = 2
      ELSE IF (INCX.EQ.0) THEN
          INFO = 5
      END IF
      IF (INFO.NE.0) THEN
          CALL XERBLA('SSPR  ',INFO)
          RETURN
      END IF
      IF ((N.EQ.0) .OR. (ALPHA.EQ.ZERO)) RETURN
      IF (INCX.LE.0) THEN
          KX = 1 - (N-1)*INCX
      ELSE IF (INCX.NE.1) THEN
          KX = 1
      END IF
      KK = 1
      IF (LSAME(UPLO,'U')) THEN
          IF (INCX.EQ.1) THEN
              DO 20 J = 1,N
                  IF (X(J).NE.ZERO) THEN
                      TEMP = ALPHA*X(J)
                      K = KK
                      DO 10 I = 1,J
                          AP(K) = AP(K) + X(I)*TEMP
                          K = K + 1
   10                 CONTINUE
                  END IF
                  KK = KK + J
   20         CONTINUE
          ELSE
              JX = KX
              DO 40 J = 1,N
                  IF (X(JX).NE.ZERO) THEN
                      TEMP = ALPHA*X(JX)
                      IX = KX
                      DO 30 K = KK,KK + J - 1
                          AP(K) = AP(K) + X(IX)*TEMP
                          IX = IX + INCX
   30                 CONTINUE
                  END IF
                  JX = JX + INCX
                  KK = KK + J
   40         CONTINUE
          END IF
      ELSE
          IF (INCX.EQ.1) THEN
              DO 60 J = 1,N
                  IF (X(J).NE.ZERO) THEN
                      TEMP = ALPHA*X(J)
                      K = KK
                      DO 50 I = J,N
                          AP(K) = AP(K) + X(I)*TEMP
                          K = K + 1
   50                 CONTINUE
                  END IF
                  KK = KK + N - J + 1
   60         CONTINUE
          ELSE
              JX = KX
              DO 80 J = 1,N
                  IF (X(JX).NE.ZERO) THEN
                      TEMP = ALPHA*X(JX)
                      IX = JX
                      DO 70 K = KK,KK + N - J
                          AP(K) = AP(K) + X(IX)*TEMP
                          IX = IX + INCX
   70                 CONTINUE
                  END IF
                  JX = JX + INCX
                  KK = KK + N - J + 1
   80         CONTINUE
          END IF
      END IF
      RETURN
      END