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tree.h (record_layout_info_s): New structure.

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* tree.h (record_layout_info_s): New structure.
	(record_layout_info): New type.
	(new_record_layout_info): New function.
	(layout_field): Likewise.
	(finish_record_layout): Likewise.
	* stor-layout.c (layout_record): Remove.
	(new_record_layout_info): New function.
	(layout_field): New function, broken out from layout_record.
	(finalize_record_size): Likewise.
	(compute_record_mode): Likewise.
	(finalize_type_size): New function, broken out from layout_type.
	(finish_record_layout): Likewise.
	(layout_type): Use them.

From-SVN: r32503
This commit is contained in:
Mark Mitchell 2000-03-13 09:12:50 +00:00 committed by Mark Mitchell
parent 05e126b360
commit 9328904cdf
3 changed files with 532 additions and 422 deletions
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16
gcc/ChangeLog
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@ -1,3 +1,19 @@
2000-03-13 Mark Mitchell <mark@codesourcery.com>
* tree.h (record_layout_info_s): New structure.
(record_layout_info): New type.
(new_record_layout_info): New function.
(layout_field): Likewise.
(finish_record_layout): Likewise.
* stor-layout.c (layout_record): Remove.
(new_record_layout_info): New function.
(layout_field): New function, broken out from layout_record.
(finalize_record_size): Likewise.
(compute_record_mode): Likewise.
(finalize_type_size): New function, broken out from layout_type.
(finish_record_layout): Likewise.
(layout_type): Use them.
2000-03-12 Zack Weinberg <zack@wolery.cumb.org>
* cpphash.c: Don't include version.h.

898
gcc/stor-layout.c
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File diff suppressed because it is too large Load Diff

40
gcc/tree.h
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@ -1776,12 +1776,46 @@ extern tree build_qualified_type PARAMS ((tree, int));
extern tree build_type_copy PARAMS ((tree));
/* Given a ..._TYPE node, calculate the TYPE_SIZE, TYPE_SIZE_UNIT,
TYPE_ALIGN and TYPE_MODE fields.
If called more than once on one node, does nothing except
for the first time. */
TYPE_ALIGN and TYPE_MODE fields. If called more than once on one
node, does nothing except for the first time. */
extern void layout_type PARAMS ((tree));
/* These functions allow a front-end to perform a manual layout of a
RECORD_TYPE. (For instance, if the placement of subsequent fields
depends on the placement of fields so far.) Begin by calling
new_record_layout_info. Then, call layout_field for each of the
fields. Then, call finish_record_layout. See layout_type for the
default way in which these functions are used. */
struct record_layout_info_s
{
/* The RECORD_TYPE that we are laying out. */
tree t;
/* The size of the record so far, in bits. */
unsigned HOST_WIDE_INT const_size;
/* The alignment of the record so far, in bits. */
unsigned int record_align;
/* If the record can have a variable size, then this will be
non-NULL, and the total size will be CONST_SIZE + VAR_SIZE. */
tree var_size;
/* If the record can have a variable size, then this will be the
maximum alignment that we know VAR_SIZE has. */
unsigned int var_align;
/* The static variables (i.e., class variables, as opposed to
instance variables) encountered in T. */
tree pending_statics;
unsigned int unpacked_align;
int packed_maybe_necessary;
};
typedef struct record_layout_info_s *record_layout_info;
extern record_layout_info new_record_layout_info
PARAMS ((tree));
extern void layout_field PARAMS ((record_layout_info, tree));
extern void finish_record_layout PARAMS ((record_layout_info));
/* Given a hashcode and a ..._TYPE node (for which the hashcode was made),
return a canonicalized ..._TYPE node, so that duplicates are not made.
How the hash code is computed is up to the caller, as long as any two