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authorHarald Anlauf <anlauf@gmx.de>2021-08-30 22:41:01 +0200
committerHarald Anlauf <anlauf@gmx.de>2021-08-30 22:41:01 +0200
commit9213ff13247739d6d335064a6b568278a872a991 (patch)
tree6e2770f644f4229344e943fca9f2b12419f94da3
parent7465c2ed6f1a1dfb2bec4b18bcad5fe3210b3f4e (diff)
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Fortran - correct check for constraint F2008:C628 / F2018:C932
gcc/fortran/ChangeLog: PR fortran/101349 * resolve.c (resolve_allocate_expr): An unlimited polymorphic argument to ALLOCATE must be ALLOCATABLE or a POINTER. Fix the corresponding check. gcc/testsuite/ChangeLog: PR fortran/101349 * gfortran.dg/unlimited_polymorphic_33.f90: New test.
-rw-r--r--gcc/fortran/resolve.c5
-rw-r--r--gcc/testsuite/gfortran.dg/unlimited_polymorphic_33.f9018
2 files changed, 21 insertions, 2 deletions
diff --git a/gcc/fortran/resolve.c b/gcc/fortran/resolve.c
index f641d0d..d7aa286 100644
--- a/gcc/fortran/resolve.c
+++ b/gcc/fortran/resolve.c
@@ -7829,8 +7829,9 @@ resolve_allocate_expr (gfc_expr *e, gfc_code *code, bool *array_alloc_wo_spec)
}
}
- /* Check for F08:C628. */
- if (allocatable == 0 && pointer == 0 && !unlimited)
+ /* Check for F08:C628 (F2018:C932). Each allocate-object shall be a data
+ pointer or an allocatable variable. */
+ if (allocatable == 0 && pointer == 0)
{
gfc_error ("Allocate-object at %L must be ALLOCATABLE or a POINTER",
&e->where);
diff --git a/gcc/testsuite/gfortran.dg/unlimited_polymorphic_33.f90 b/gcc/testsuite/gfortran.dg/unlimited_polymorphic_33.f90
new file mode 100644
index 0000000..8bb8864
--- /dev/null
+++ b/gcc/testsuite/gfortran.dg/unlimited_polymorphic_33.f90
@@ -0,0 +1,18 @@
+! { dg-do compile }
+! PR fortran/101349 - ICE in gfc_get_descriptor_field
+! Check constraint F2008:C628 / F2018:C932
+
+subroutine s(x)
+ class(*) :: x(:)
+ allocate (x, source=['abc']) ! { dg-error "must be ALLOCATABLE or a POINTER" }
+end
+
+subroutine t(x)
+ class(*), allocatable :: x(:)
+ allocate (x, source=['abc'])
+end
+
+subroutine u(x)
+ class(*), pointer :: x(:)
+ allocate (x, source=['abc'])
+end