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+! { dg-do run }
+! { dg-options "-fcheck=recursion" }
+!
+! PR fortran/39577
+!
+! Recursive but valid program
+! Contributed by Dominique Dhumieres
+!
+recursive function fac(i) result (res)
+ integer :: i, j, k, res
+ k = 1
+ goto 100
+entry bifac(i,j) result (res)
+ k = j
+100 continue
+ if (i < k) then
+ res = 1
+ else
+ res = i * bifac(i-k,k)
+ end if
+end function
+
+program test
+interface
+ recursive function fac(n) result (res)
+ integer :: res
+ integer :: n
+ end function fac
+ recursive function bifac(m,n) result (res)
+ integer :: m, n, res
+ end function bifac
+end interface
+
+ print *, fac(5)
+ print *, bifac(5,2)
+ print*, fac(6)
+ print *, bifac(6,2)
+ print*, fac(0)
+ print *, bifac(1,2)
+end program test