Ping.
On Thu, Aug 01, 2019 at 02:11:39PM -0700, Steve Kargl wrote:
> The attached patch fixed the issues raised in the
> PR fortran/42546. Namely, ALLOCATED has two possible
> keywords: ALLOCATE(ARRAY=...) or ALLOCATED(SCALAR=...)
>
> In Tobias' original patch (attached to the PR), he
> tried to make both ARRAY and SCALAR options, then
> in gfc_check_allocated() appropriate checking was
> added. I started down that road, but intrinsic.c(
> sort_actual) got in the way. Fortunately, the
> checking for ARRAY or SCALAR can be special-cased
> in sort_actual. See the patch.
>
> Regression tested on x86_64-*-freebsd. OK to commit?
>
> 2019-08-01 Steven G. Kargl <ka...@gcc.gnu.org>
>
> PR fortran/42546
> * check.c(gfc_check_allocated): Add comment pointing to ...
> * intrinsic.c(sort_actual): ... the checking done here.
>
> 2019-08-01 Steven G. Kargl <ka...@gcc.gnu.org>
>
> PR fortran/42546
> * gfortran.dg/allocated_1.f90: New test.
> * gfortran.dg/allocated_2.f90: Ditto.
>
> --
> Steve
> Index: gcc/fortran/check.c
> ===================================================================
> --- gcc/fortran/check.c (revision 273950)
> +++ gcc/fortran/check.c (working copy)
> @@ -1168,6 +1168,10 @@ gfc_check_all_any (gfc_expr *mask, gfc_expr *dim)
> }
>
>
> +/* Limited checking for ALLOCATED intrinsic. Additional checking
> + is performed in intrinsic.c(sort_actual), because ALLOCATED
> + has two mutually exclusive non-optional arguments. */
> +
> bool
> gfc_check_allocated (gfc_expr *array)
> {
> Index: gcc/fortran/intrinsic.c
> ===================================================================
> --- gcc/fortran/intrinsic.c (revision 273950)
> +++ gcc/fortran/intrinsic.c (working copy)
> @@ -4180,6 +4180,40 @@ sort_actual (const char *name, gfc_actual_arglist **ap
> if (f == NULL && a == NULL) /* No arguments */
> return true;
>
> + /* ALLOCATED has two mutually exclusive keywords, but only one
> + can be present at time and neither is optional. */
> + if (strcmp (name, "allocated") == 0 && a->name)
> + {
> + if (strcmp (a->name, "scalar") == 0)
> + {
> + if (a->next)
> + goto whoops;
> + if (a->expr->rank != 0)
> + {
> + gfc_error ("Scalar entity required at %L", &a->expr->where);
> + return false;
> + }
> + return true;
> + }
> + else if (strcmp (a->name, "array") == 0)
> + {
> + if (a->next)
> + goto whoops;
> + if (a->expr->rank == 0)
> + {
> + gfc_error ("Array entity required at %L", &a->expr->where);
> + return false;
> + }
> + return true;
> + }
> + else
> + {
> + gfc_error ("Invalid keyword %qs in %qs intrinsic function at %L",
> + a->name, name, @a->expr->where);
> + return false;
> + }
> + }
> +
> for (;;)
> { /* Put the nonkeyword arguments in a 1:1 correspondence
> */
> if (f == NULL)
> @@ -4199,6 +4233,7 @@ sort_actual (const char *name, gfc_actual_arglist **ap
> if (a == NULL)
> goto do_sort;
>
> +whoops:
> gfc_error ("Too many arguments in call to %qs at %L", name, where);
> return false;
>
> Index: gcc/testsuite/gfortran.dg/allocated_1.f90
> ===================================================================
> --- gcc/testsuite/gfortran.dg/allocated_1.f90 (nonexistent)
> +++ gcc/testsuite/gfortran.dg/allocated_1.f90 (working copy)
> @@ -0,0 +1,24 @@
> +! { dg-do run }
> +program foo
> +
> + implicit none
> +
> + integer, allocatable :: x
> + integer, allocatable :: a(:)
> +
> + logical a1, a2
> +
> + a1 = allocated(scalar=x)
> + if (a1 .neqv. .false.) stop 1
> + a2 = allocated(array=a)
> + if (a2 .neqv. .false.) stop 2
> +
> + allocate(x)
> + allocate(a(2))
> +
> + a1 = allocated(scalar=x)
> + if (a1 .neqv. .true.) stop 3
> + a2 = allocated(array=a)
> + if (a2 .neqv. .true.) stop 4
> +
> +end program foo
> Index: gcc/testsuite/gfortran.dg/allocated_2.f90
> ===================================================================
> --- gcc/testsuite/gfortran.dg/allocated_2.f90 (nonexistent)
> +++ gcc/testsuite/gfortran.dg/allocated_2.f90 (working copy)
> @@ -0,0 +1,16 @@
> +! { dg-do compile }
> +program foo
> +
> + implicit none
> +
> + integer, allocatable :: x
> + integer, allocatable :: a(:)
> +
> + logical a1, a2
> +
> + a1 = allocated(scalar=a) ! { dg-error "Scalar entity required" }
> + a2 = allocated(array=x) ! { dg-error "Array entity required" }
> + a1 = allocated(scalar=x, array=a) ! { dg-error "Too many arguments" }
> + a1 = allocated(array=a, scalar=x) ! { dg-error "Too many arguments" }
> +
> +end program foo
--
Steve
20170425 https://www.youtube.com/watch?v=VWUpyCsUKR4
20161221 https://www.youtube.com/watch?v=IbCHE-hONow
