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Diffstat (limited to 'gcc/testsuite/gfortran.dg/recursive_reference_1.f90')
| -rw-r--r-- | gcc/testsuite/gfortran.dg/recursive_reference_1.f90 | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/gcc/testsuite/gfortran.dg/recursive_reference_1.f90 b/gcc/testsuite/gfortran.dg/recursive_reference_1.f90 new file mode 100644 index 000000000..3ca6bcb17 --- /dev/null +++ b/gcc/testsuite/gfortran.dg/recursive_reference_1.f90 @@ -0,0 +1,50 @@ +! { dg-do compile } +! Tests the patch for PR27613, in which directly recursive, scalar +! functions were generating an "unclassifiable statement" error +! for the recursive statement(s). This was subsequently determined +! to be wrong code and the error on 'bad_stuff' was removed. +! See 12.5.2.1 of the standard and PR30876. +! +! Based on PR testcase by Nicolas Bock <nicolasbock@gmail.com> +! +program test + if (original_stuff(1) .ne. 5) call abort () + if (scalar_stuff(-4) .ne. 10) call abort () + if (any (array_stuff((/-19,-30/)) .ne. (/25,25/))) call abort () +contains + recursive function original_stuff(n) + integer :: original_stuff + integer :: n + original_stuff = 1 + if(n < 5) then + original_stuff = original_stuff + original_stuff (n+1) ! { dg-error "name of a recursive function" } + endif + end function original_stuff + + recursive function scalar_stuff(n) result (tmp) + integer :: tmp + integer :: n + tmp = 1 + if(n < 5) then + tmp = tmp + scalar_stuff (n+1) + endif + end function scalar_stuff + + recursive function array_stuff(n) result (tmp) + integer :: tmp (2) + integer :: n (2) + tmp = 1 + if(maxval (n) < 5) then + tmp = tmp + array_stuff (n+1) + endif + end function array_stuff + + recursive function bad_stuff(n) + integer :: bad_stuff (2) + integer :: n(2) + bad_stuff = 1 + if(maxval (n) < 5) then + bad_stuff = bad_stuff + bad_stuff (n+1) + endif + end function bad_stuff +end program test |