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* [gcc r12-8875] Fortran: BOZ literal constants are not compatible to any type [PR103413]
@ 2022-10-28 20:38 Harald Anlauf
0 siblings, 0 replies; only message in thread
From: Harald Anlauf @ 2022-10-28 20:38 UTC (permalink / raw)
To: gcc-cvs
https://gcc.gnu.org/g:9831a5f4843b573bbdb2688bbf2de864b4e8be8b
commit r12-8875-g9831a5f4843b573bbdb2688bbf2de864b4e8be8b
Author: Harald Anlauf <anlauf@gmx.de>
Date: Wed Oct 26 21:00:44 2022 +0200
Fortran: BOZ literal constants are not compatible to any type [PR103413]
gcc/fortran/ChangeLog:
PR fortran/103413
* symbol.cc (gfc_type_compatible): A boz-literal-constant has no type
and thus is not considered compatible to any type.
gcc/testsuite/ChangeLog:
PR fortran/103413
* gfortran.dg/illegal_boz_arg_4.f90: New test.
(cherry picked from commit f7d28818179247685f3c101f9f2f16366f56309b)
Diff:
---
gcc/fortran/symbol.cc | 4 ++++
gcc/testsuite/gfortran.dg/illegal_boz_arg_4.f90 | 13 +++++++++++++
2 files changed, 17 insertions(+)
diff --git a/gcc/fortran/symbol.cc b/gcc/fortran/symbol.cc
index 7a80dfd063b..b092813a5c0 100644
--- a/gcc/fortran/symbol.cc
+++ b/gcc/fortran/symbol.cc
@@ -5133,6 +5133,10 @@ gfc_type_compatible (gfc_typespec *ts1, gfc_typespec *ts2)
bool is_union1 = (ts1->type == BT_UNION);
bool is_union2 = (ts2->type == BT_UNION);
+ /* A boz-literal-constant has no type. */
+ if (ts1->type == BT_BOZ || ts2->type == BT_BOZ)
+ return false;
+
if (is_class1
&& ts1->u.derived->components
&& ((ts1->u.derived->attr.is_class
diff --git a/gcc/testsuite/gfortran.dg/illegal_boz_arg_4.f90 b/gcc/testsuite/gfortran.dg/illegal_boz_arg_4.f90
new file mode 100644
index 00000000000..856cfa9211f
--- /dev/null
+++ b/gcc/testsuite/gfortran.dg/illegal_boz_arg_4.f90
@@ -0,0 +1,13 @@
+! { dg-do compile }
+! { dg-options "-std=f2018" }
+! PR fortran/103413
+! Contributed by G.Steinmetz
+
+program p
+ type t
+ class(*), allocatable :: a
+ end type
+ type(t) :: x
+ allocate (x%a, source=z'1') ! { dg-error "type incompatible" }
+ allocate (x%a, mold=z'1') ! { dg-error "type incompatible" }
+end
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