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authorTobias Burnus <tobias@codesourcery.com>2021-10-19 16:38:56 +0200
committerTobias Burnus <tobias@codesourcery.com>2021-10-19 16:43:56 +0200
commitff0eec94e87dfb7dc387f120ca5ade2707aecf50 (patch)
treea3ca049e6530d7e7834eca314a4a55199dfe704b
parent7ef0cc444488e0bfa9b63d46307105e78ffc17a6 (diff)
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Fortran: Fix 'fn spec' for deferred character length
Shows now up with gfortran.dg/deferred_type_param_6.f90 due to more ME optimizations, causing fails without this commit. gcc/fortran/ChangeLog: * trans-types.c (create_fn_spec): For allocatable/pointer character(len=:), use 'w' not 'R' as fn spec for the length dummy argument.
-rw-r--r--gcc/fortran/trans-types.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/gcc/fortran/trans-types.c b/gcc/fortran/trans-types.c
index 50fceeb..4277806 100644
--- a/gcc/fortran/trans-types.c
+++ b/gcc/fortran/trans-types.c
@@ -3014,7 +3014,11 @@ create_fn_spec (gfc_symbol *sym, tree fntype)
}
if (sym->ts.type == BT_CHARACTER)
{
- spec[spec_len++] = 'R';
+ if (!sym->ts.u.cl->length
+ && (sym->attr.allocatable || sym->attr.pointer))
+ spec[spec_len++] = 'w';
+ else
+ spec[spec_len++] = 'R';
spec[spec_len++] = ' ';
}
}