diff options
Diffstat (limited to 'gcc/fortran/trans-expr.c')
| -rw-r--r-- | gcc/fortran/trans-expr.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/gcc/fortran/trans-expr.c b/gcc/fortran/trans-expr.c index df20db9..381915e 100644 --- a/gcc/fortran/trans-expr.c +++ b/gcc/fortran/trans-expr.c @@ -5536,13 +5536,17 @@ gfc_conv_gfc_desc_to_cfi_desc (gfc_se *parmse, gfc_expr *e, gfc_symbol *fsym) { /* If the actual argument can be noncontiguous, copy-in/out is required, if the dummy has either the CONTIGUOUS attribute or is an assumed- - length assumed-length/assumed-size CHARACTER array. */ + length assumed-length/assumed-size CHARACTER array. This only + applies if the actual argument is a "variable"; if it's some + non-lvalue expression, we are going to evaluate it to a + temporary below anyway. */ se.force_no_tmp = 1; if ((fsym->attr.contiguous || (fsym->ts.type == BT_CHARACTER && !fsym->ts.u.cl->length && (fsym->as->type == AS_ASSUMED_SIZE || fsym->as->type == AS_EXPLICIT))) - && !gfc_is_simply_contiguous (e, false, true)) + && !gfc_is_simply_contiguous (e, false, true) + && gfc_expr_is_variable (e)) { bool optional = fsym->attr.optional; fsym->attr.optional = 0; @@ -6841,6 +6845,8 @@ gfc_conv_procedure_call (gfc_se * se, gfc_symbol * sym, fsym->attr.pointer); } else + /* This is where we introduce a temporary to store the + result of a non-lvalue array expression. */ gfc_conv_array_parameter (&parmse, e, nodesc_arg, fsym, sym->name, NULL); |