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add default for PCC_BITFIELD_TYPE_MATTERS

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gcc/ChangeLog:

2015-04-27  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>

	* defaults.h (PCC_BITFIELD_TYPE_MATTERS): Add default definition
	to false.
	* dwarf2out.c (field_byte_offset): REmove check if
	PCC_BITFIELD_TYPE_MATTERS is defined.
	* stor-layout.c (layout_decl): Likewise.
	(update_alignment_for_field): Likewise.
	(place_field): Likewise.

gcc/cp/ChangeLog:

2015-04-27  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>

	* class.c (layout_class_type): Remove check if
	PCC_BITFIELD_TYPE_MATTERS is defined.

From-SVN: r222503
This commit is contained in:
Trevor Saunders 2015-04-28 04:42:04 +00:00 committed by Trevor Saunders
parent aedf2c0283
commit 1d0275e2bb
6 changed files with 21 additions and 14 deletions
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10
gcc/ChangeLog
View File

@ -1,3 +1,13 @@
2015-04-27 Trevor Saunders <tbsaunde+gcc@tbsaunde.org>
* defaults.h (PCC_BITFIELD_TYPE_MATTERS): Add default definition
to false.
* dwarf2out.c (field_byte_offset): REmove check if
PCC_BITFIELD_TYPE_MATTERS is defined.
* stor-layout.c (layout_decl): Likewise.
(update_alignment_for_field): Likewise.
(place_field): Likewise.
2015-04-27 Trevor Saunders <tbsaunde+gcc@tbsaunde.org>
* defaults.h (HARD_REGNO_RENAME_OK): Add default definition to

5
gcc/cp/ChangeLog
View File

@ -1,3 +1,8 @@
2015-04-27 Trevor Saunders <tbsaunde+gcc@tbsaunde.org>
* class.c (layout_class_type): Remove check if
PCC_BITFIELD_TYPE_MATTERS is defined.
2015-04-27 Jim Wilson <jim.wilson@linaro.org>
* Make-lang.in (c++.mostlyclean): Remove xg++, g++-cross, and cc1plus.

4
gcc/cp/class.c
View File

@ -6258,7 +6258,7 @@ layout_class_type (tree t, tree *virtuals_p)
padding = size_binop (MINUS_EXPR, DECL_SIZE (field),
TYPE_SIZE (integer_type));
}
#ifdef PCC_BITFIELD_TYPE_MATTERS
/* An unnamed bitfield does not normally affect the
alignment of the containing class on a target where
PCC_BITFIELD_TYPE_MATTERS. But, the C++ ABI does not
@ -6270,7 +6270,7 @@ layout_class_type (tree t, tree *virtuals_p)
was_unnamed_p = true;
DECL_NAME (field) = make_anon_name ();
}
#endif
DECL_SIZE (field) = TYPE_SIZE (integer_type);
DECL_ALIGN (field) = TYPE_ALIGN (integer_type);
DECL_USER_ALIGN (field) = TYPE_USER_ALIGN (integer_type);

4
gcc/defaults.h
View File

@ -1201,6 +1201,10 @@ see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
#define DEFAULT_PCC_STRUCT_RETURN 1
#endif
#ifndef PCC_BITFIELD_TYPE_MATTERS
#define PCC_BITFIELD_TYPE_MATTERS false
#endif
#ifndef INSN_SETS_ARE_DELAYED
#define INSN_SETS_ARE_DELAYED(INSN) false
#endif

2
gcc/dwarf2out.c
View File

@ -15120,7 +15120,6 @@ field_byte_offset (const_tree decl)
bitpos_int = wi::to_offset (bit_position (decl));
#ifdef PCC_BITFIELD_TYPE_MATTERS
if (PCC_BITFIELD_TYPE_MATTERS)
{
tree type;
@ -15218,7 +15217,6 @@ field_byte_offset (const_tree decl)
}
}
else
#endif /* PCC_BITFIELD_TYPE_MATTERS */
object_offset_in_bits = bitpos_int;
object_offset_in_bytes

10
gcc/stor-layout.c
View File

@ -85,10 +85,8 @@ static tree self_referential_size (tree);
static void finalize_record_size (record_layout_info);
static void finalize_type_size (tree);
static void place_union_field (record_layout_info, tree);
#if defined (PCC_BITFIELD_TYPE_MATTERS) || defined (BITFIELD_NBYTES_LIMITED)
static int excess_unit_span (HOST_WIDE_INT, HOST_WIDE_INT, HOST_WIDE_INT,
HOST_WIDE_INT, tree);
#endif
extern void debug_rli (record_layout_info);
/* Show that REFERENCE_TYPES are internal and should use address_mode.
@ -703,11 +701,9 @@ layout_decl (tree decl, unsigned int known_align)
{
zero_bitfield = true;
packed_p = false;
#ifdef PCC_BITFIELD_TYPE_MATTERS
if (PCC_BITFIELD_TYPE_MATTERS)
do_type_align (type, decl);
else
#endif
{
#ifdef EMPTY_FIELD_BOUNDARY
if (EMPTY_FIELD_BOUNDARY > DECL_ALIGN (decl))
@ -1071,7 +1067,6 @@ update_alignment_for_field (record_layout_info rli, tree field,
rli->unpacked_align = MAX (rli->unpacked_align, TYPE_ALIGN (type));
}
}
#ifdef PCC_BITFIELD_TYPE_MATTERS
else if (is_bitfield && PCC_BITFIELD_TYPE_MATTERS)
{
/* Named bit-fields cause the entire structure to have the
@ -1114,7 +1109,6 @@ update_alignment_for_field (record_layout_info rli, tree field,
user_align |= TYPE_USER_ALIGN (type);
}
}
#endif
else
{
rli->record_align = MAX (rli->record_align, desired_align);
@ -1152,7 +1146,6 @@ place_union_field (record_layout_info rli, tree field)
DECL_SIZE_UNIT (field), rli->offset);
}
#if defined (PCC_BITFIELD_TYPE_MATTERS) || defined (BITFIELD_NBYTES_LIMITED)
/* A bitfield of SIZE with a required access alignment of ALIGN is allocated
at BYTE_OFFSET / BIT_OFFSET. Return nonzero if the field would span more
units of alignment than the underlying TYPE. */
@ -1168,7 +1161,6 @@ excess_unit_span (HOST_WIDE_INT byte_offset, HOST_WIDE_INT bit_offset,
return ((offset + size + align - 1) / align
> tree_to_uhwi (TYPE_SIZE (type)) / align);
}
#endif
/* RLI contains information about the layout of a RECORD_TYPE. FIELD
is a FIELD_DECL to be added after those fields already present in
@ -1295,7 +1287,6 @@ place_field (record_layout_info rli, tree field)
/* Handle compatibility with PCC. Note that if the record has any
variable-sized fields, we need not worry about compatibility. */
#ifdef PCC_BITFIELD_TYPE_MATTERS
if (PCC_BITFIELD_TYPE_MATTERS
&& ! targetm.ms_bitfield_layout_p (rli->t)
&& TREE_CODE (field) == FIELD_DECL
@ -1340,7 +1331,6 @@ place_field (record_layout_info rli, tree field)
if (! DECL_PACKED (field))
TYPE_USER_ALIGN (rli->t) |= TYPE_USER_ALIGN (type);
}
#endif
#ifdef BITFIELD_NBYTES_LIMITED
if (BITFIELD_NBYTES_LIMITED