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* [gcc r11-8478] Fortran: Fix erroneous "pointer argument is not associated" runtime error
@ 2021-05-28 18:07 Harald Anlauf
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From: Harald Anlauf @ 2021-05-28 18:07 UTC (permalink / raw)
To: gcc-cvs
https://gcc.gnu.org/g:cb5c89afbe0ef59fa315cbfda31a55ea5d8ca297
commit r11-8478-gcb5c89afbe0ef59fa315cbfda31a55ea5d8ca297
Author: Harald Anlauf <anlauf@gmx.de>
Date: Thu May 27 13:58:26 2021 +0200
Fortran: Fix erroneous "pointer argument is not associated" runtime error
For CLASS arrays we need to use the CLASS data attributes to determine
which runtime check to generate.
gcc/fortran/ChangeLog:
PR fortran/100602
* trans-intrinsic.c (gfc_conv_intrinsic_size): Use CLASS data
attributes for CLASS arrays for generation of runtime error.
gcc/testsuite/ChangeLog:
PR fortran/100602
* gfortran.dg/pointer_check_14.f90: New test.
(cherry picked from commit 71d7dc6cd09b603bcc58d5d1747a86eb498bb147)
Diff:
---
gcc/fortran/trans-intrinsic.c | 9 ++++++++-
gcc/testsuite/gfortran.dg/pointer_check_14.f90 | 28 ++++++++++++++++++++++++++
2 files changed, 36 insertions(+), 1 deletion(-)
diff --git a/gcc/fortran/trans-intrinsic.c b/gcc/fortran/trans-intrinsic.c
index 5e53d1162fa..68090d4defc 100644
--- a/gcc/fortran/trans-intrinsic.c
+++ b/gcc/fortran/trans-intrinsic.c
@@ -8009,7 +8009,14 @@ gfc_conv_intrinsic_size (gfc_se * se, gfc_expr * expr)
tree temp;
tree cond;
- attr = sym ? sym->attr : gfc_expr_attr (e);
+ if (e->symtree->n.sym && IS_CLASS_ARRAY (e->symtree->n.sym))
+ {
+ attr = CLASS_DATA (e->symtree->n.sym)->attr;
+ attr.pointer = attr.class_pointer;
+ }
+ else
+ attr = gfc_expr_attr (e);
+
if (attr.allocatable)
msg = xasprintf ("Allocatable argument '%s' is not allocated",
e->symtree->n.sym->name);
diff --git a/gcc/testsuite/gfortran.dg/pointer_check_14.f90 b/gcc/testsuite/gfortran.dg/pointer_check_14.f90
new file mode 100644
index 00000000000..8ef6b3611fa
--- /dev/null
+++ b/gcc/testsuite/gfortran.dg/pointer_check_14.f90
@@ -0,0 +1,28 @@
+! { dg-do run }
+! { dg-options "-fcheck=pointer -fdump-tree-original" }
+! PR100602 - Erroneous "pointer argument is not associated" runtime error
+
+module m
+ type :: T
+ end type
+contains
+ subroutine f(this)
+ class(T), intent(in) :: this(:)
+ class(T), allocatable :: ca(:)
+ class(T), pointer :: cp(:)
+ if (size (this) == 0) return
+ write(*,*) size (this)
+ stop 1
+ write(*,*) size (ca) ! Check #1
+ write(*,*) size (cp) ! Check #2
+ end subroutine f
+end module
+
+program main
+ use m
+ call f([T::])
+end program
+
+! { dg-final { scan-tree-dump-times "_gfortran_runtime_error_at" 2 "original" } }
+! { dg-final { scan-tree-dump-times "Allocatable argument .*ca" 1 "original" } }
+! { dg-final { scan-tree-dump-times "Pointer argument .*cp" 1 "original" } }
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