/* C-compiler utilities for types and variables storage layout
- Copyright (C) 1987-2019 Free Software Foundation, Inc.
+ Copyright (C) 1987-2020 Free Software Foundation, Inc.
This file is part of GCC.
case MODE_VECTOR_UACCUM:
return int_mode_for_size (GET_MODE_BITSIZE (mode), 0);
+ case MODE_OPAQUE:
+ return opt_scalar_int_mode ();
+
case MODE_RANDOM:
if (mode == BLKmode)
return opt_scalar_int_mode ();
Bump the cumulative size to multiple of field alignment. */
if (!targetm.ms_bitfield_layout_p (rli->t)
- && DECL_SOURCE_LOCATION (field) != BUILTINS_LOCATION)
+ && DECL_SOURCE_LOCATION (field) != BUILTINS_LOCATION
+ && !TYPE_ARTIFICIAL (rli->t))
warning (OPT_Wpadded, "padding struct to align %q+D", field);
/* If the alignment is still within offset_align, just align
if (TREE_CONSTANT (unpadded_size)
&& simple_cst_equal (unpadded_size, TYPE_SIZE (rli->t)) == 0
- && input_location != BUILTINS_LOCATION)
+ && input_location != BUILTINS_LOCATION
+ && !TYPE_ARTIFICIAL (rli->t))
warning (OPT_Wpadded, "padding struct size to alignment boundary");
if (warn_packed && TREE_CODE (rli->t) == RECORD_TYPE
/* If TYPE_SIZE_UNIT overflowed, then it is certainly larger than
TYPE_ALIGN_UNIT. */
&& !TREE_OVERFLOW (TYPE_SIZE_UNIT (element))
- && !integer_zerop (TYPE_SIZE_UNIT (element))
- && compare_tree_int (TYPE_SIZE_UNIT (element),
- TYPE_ALIGN_UNIT (element)) < 0)
- error ("alignment of array elements is greater than element size");
+ && !integer_zerop (TYPE_SIZE_UNIT (element)))
+ {
+ if (compare_tree_int (TYPE_SIZE_UNIT (element),
+ TYPE_ALIGN_UNIT (element)) < 0)
+ error ("alignment of array elements is greater than "
+ "element size");
+ else if (TYPE_ALIGN_UNIT (element) > 1
+ && (wi::zext (wi::to_wide (TYPE_SIZE_UNIT (element)),
+ ffs_hwi (TYPE_ALIGN_UNIT (element)) - 1)
+ != 0))
+ error ("size of array element is not a multiple of its "
+ "alignment");
+ }
break;
}