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Adjust Value.location for lval_register

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value.regnum and value.next_frame_id are only used for lval_register,
so this patch moves them to union value.location.  As a result, when
we copy value, only copy location, don't need to copy regnum and
next_frame_id.

This patch also changes regnum's type to int as there is no space
constraint, so update deprecated_value_regnum_hack return type too.

gdb:

2016-11-28  Yao Qi  <yao.qi@linaro.org>

	* valops.c (value_slice): Don't set frame id of slice.
	* value.c (struct value) <regnum, next_frame_id>: Move them to...
	(struct value) <location>: ... here.  Update comments.
	(allocate_value_lazy): Don't set frame id and regnum.
	(deprecated_value_next_frame_id_hack): Adjust.
	(deprecated_value_regnum_hack): Adjust.
	(value_copy): Don't copy frame id and regnu.
	(value_primitive_field): Likewise.
	(value_from_component): Likewise.
	(deprecated_value_regnum_hack): Return int *.
	* value.h (deprecated_value_regnum_hack): Update declaration.
This commit is contained in:
Yao Qi
2016-11-28 17:09:26 +00:00
parent ee40d8d452
commit 7dc54575d9
3 changed files with 18 additions and 29 deletions
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2
gdb/value.h
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@@ -448,7 +448,7 @@ extern struct frame_id *deprecated_value_next_frame_id_hack (struct value *);
#define VALUE_FRAME_ID(val) (get_prev_frame_id_by_id (VALUE_NEXT_FRAME_ID (val)))
/* Register number if the value is from a register. */
extern short *deprecated_value_regnum_hack (struct value *);
extern int *deprecated_value_regnum_hack (struct value *);
#define VALUE_REGNUM(val) (*deprecated_value_regnum_hack (val))
/* Return value after lval_funcs->coerce_ref (after check_typedef). Return