diff options
Diffstat (limited to 'gcc/fortran/trans-expr.c')
| -rw-r--r-- | gcc/fortran/trans-expr.c | 14 |
1 files changed, 9 insertions, 5 deletions
diff --git a/gcc/fortran/trans-expr.c b/gcc/fortran/trans-expr.c index 1f94dcf..1453828 100644 --- a/gcc/fortran/trans-expr.c +++ b/gcc/fortran/trans-expr.c @@ -10275,17 +10275,21 @@ gfc_trans_assignment_1 (gfc_expr * expr1, gfc_expr * expr2, bool init_flag, /* When assigning a character function result to a deferred-length variable, the function call must happen before the (re)allocation of the lhs - otherwise the character length of the result is not known. - NOTE: This relies on having the exact dependence of the length type + NOTE 1: This relies on having the exact dependence of the length type parameter available to the caller; gfortran saves it in the .mod files. - NOTE ALSO: The concatenation operation generates a temporary pointer, + NOTE 2: Vector array references generate an index temporary that must + not go outside the loop. Otherwise, variables should not generate + a pre block. + NOTE 3: The concatenation operation generates a temporary pointer, whose allocation must go to the innermost loop. - NOTE ALSO (2): Elemental functions may generate a temporary, too. */ + NOTE 4: Elemental functions may generate a temporary, too. */ if (flag_realloc_lhs && expr2->ts.type == BT_CHARACTER && expr1->ts.deferred && !(lss != gfc_ss_terminator && rss != gfc_ss_terminator - && ((expr2->expr_type == EXPR_FUNCTION - && expr2->value.function.esym != NULL + && ((expr2->expr_type == EXPR_VARIABLE && expr2->rank) + || (expr2->expr_type == EXPR_FUNCTION + && expr2->value.function.esym != NULL && expr2->value.function.esym->attr.elemental) || (expr2->expr_type == EXPR_FUNCTION && expr2->value.function.isym != NULL |