===================================================================
@@ -120,7 +120,15 @@ show_typespec (gfc_typespec *ts)
fprintf (dumpfile, "%d", ts->kind);
break;
}
+ if (ts->is_c_interop)
+ fputs (" C_INTEROP", dumpfile);
+ if (ts->is_iso_c)
+ fputs (" ISO_C", dumpfile);
+
+ if (ts->deferred)
+ fputs (" DEFERRED", dumpfile);
+
fputc (')', dumpfile);
}
===================================================================
@@ -616,6 +616,7 @@ create_var (gfc_expr * e, const char *vname)
gfc_code *n;
gfc_namespace *ns;
int i;
+ bool deferred;
if (e->expr_type == EXPR_CONSTANT || is_fe_temp (e))
return gfc_copy_expr (e);
@@ -666,6 +667,7 @@ create_var (gfc_expr * e, const char *vname)
}
}
+ deferred = 0;
if (e->ts.type == BT_CHARACTER && e->rank == 0)
{
gfc_expr *length;
@@ -675,7 +677,10 @@ create_var (gfc_expr * e, const char *vname)
if (length)
symbol->ts.u.cl->length = length;
else
- symbol->attr.allocatable = 1;
+ {
+ symbol->attr.allocatable = 1;
+ deferred = 1;
+ }
}
symbol->attr.flavor = FL_VARIABLE;
@@ -687,6 +692,7 @@ create_var (gfc_expr * e, const char *vname)
result = gfc_get_expr ();
result->expr_type = EXPR_VARIABLE;
result->ts = e->ts;
+ result->ts.deferred = deferred;
result->rank = e->rank;
result->shape = gfc_copy_shape (e->shape, e->rank);
result->symtree = symtree;
Hello world, I just committed the attached patch as obvious and simple after regression-testing. One source of mysterious errors (and regressions) in the front end was that the deferred flag on the typespec was not set for deffered strings. Because some flags (including the deferred flag) in the typespec were not output to the dump of the Fortran AST, I have also added this. I will backport to 6 and 5 in a few days. Regards Thomas 2016-08-15 Thomas Koenig <tkoenig@gcc.gnu.org> * frontend-passes.c (create_var): Set ts.deferred for deferred-length character variables. * dump-parse-tree.c (show_typespec): Also dump is_c_interop, is_iso_c and deferred flags.