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-rw-r--r--gcc/fortran/trans-expr.c12
1 files changed, 12 insertions, 0 deletions
diff --git a/gcc/fortran/trans-expr.c b/gcc/fortran/trans-expr.c
index 91485d1..dcbccef 100644
--- a/gcc/fortran/trans-expr.c
+++ b/gcc/fortran/trans-expr.c
@@ -4585,6 +4585,7 @@ gfc_trans_assignment_1 (gfc_expr * expr1, gfc_expr * expr2, bool init_flag)
stmtblock_t body;
bool l_is_temp;
bool scalar_to_array;
+ tree string_length;
/* Assignment of the form lhs = rhs. */
gfc_start_block (&block);
@@ -4660,10 +4661,18 @@ gfc_trans_assignment_1 (gfc_expr * expr1, gfc_expr * expr2, bool init_flag)
/* Translate the expression. */
gfc_conv_expr (&rse, expr2);
+ /* Stabilize a string length for temporaries. */
+ if (expr2->ts.type == BT_CHARACTER)
+ string_length = gfc_evaluate_now (rse.string_length, &rse.pre);
+ else
+ string_length = NULL_TREE;
+
if (l_is_temp)
{
gfc_conv_tmp_array_ref (&lse);
gfc_advance_se_ss_chain (&lse);
+ if (expr2->ts.type == BT_CHARACTER)
+ lse.string_length = string_length;
}
else
gfc_conv_expr (&lse, expr1);
@@ -4718,6 +4727,9 @@ gfc_trans_assignment_1 (gfc_expr * expr1, gfc_expr * expr2, bool init_flag)
gcc_assert (lse.ss == gfc_ss_terminator
&& rse.ss == gfc_ss_terminator);
+ if (expr2->ts.type == BT_CHARACTER)
+ rse.string_length = string_length;
+
tmp = gfc_trans_scalar_assign (&lse, &rse, expr1->ts,
false, false);
gfc_add_expr_to_block (&body, tmp);