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expr.c (store_constructor): New argument SIZE; pass to clear_storage. 

* expr.c (store_constructor): New argument SIZE; pass to clear_storage.
	(store_constructor_field, expand_expr): Pass new arg.

From-SVN: r31037
This commit is contained in:
Richard Kenner 1999-12-20 20:29:36 +00:00 committed by Richard Kenner
parent 11a6092b63
commit b701041288
2 changed files with 21 additions and 10 deletions
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5
gcc/ChangeLog
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@ -1,3 +1,8 @@
Mon Dec 20 15:00:04 1999 Richard Kenner <kenner@vlsi1.ultra.nyu.edu>
* expr.c (store_constructor): New argument SIZE; pass to clear_storage.
(store_constructor_field, expand_expr): Pass new arg.
1999-12-20 Mark Mitchell <mark@codesourcery.com>
* Makefile.in (explow.o): Depend on function.h.

26
gcc/expr.c
View File

@ -145,7 +145,7 @@ static int is_zeros_p PROTO((tree));
static int mostly_zeros_p PROTO((tree));
static void store_constructor_field PROTO((rtx, int, int, enum machine_mode,
tree, tree, int, int));
static void store_constructor PROTO((tree, rtx, int, int));
static void store_constructor PROTO((tree, rtx, int, int, int));
static rtx store_field PROTO((rtx, int, int, enum machine_mode, tree,
enum machine_mode, int, int,
int, int));
@ -4074,7 +4074,7 @@ store_constructor_field (target, bitsize, bitpos,
? BLKmode : VOIDmode,
plus_constant (XEXP (target, 0),
bitpos / BITS_PER_UNIT));
store_constructor (exp, target, align, cleared);
store_constructor (exp, target, align, cleared, bitsize / BITS_PER_UNIT);
}
else
store_field (target, bitsize, bitpos, mode, exp, VOIDmode, 0,
@ -4085,14 +4085,18 @@ store_constructor_field (target, bitsize, bitpos,
/* Store the value of constructor EXP into the rtx TARGET.
TARGET is either a REG or a MEM.
ALIGN is the maximum known alignment for TARGET, in bits.
CLEARED is true if TARGET is known to have been zero'd. */
CLEARED is true if TARGET is known to have been zero'd.
SIZE is the number of bytes of TARGET we are allowed to modify: this
may not be the same as the size of EXP if we are assigning to a field
which has been packed to exclude padding bits. */
static void
store_constructor (exp, target, align, cleared)
store_constructor (exp, target, align, cleared, size)
tree exp;
rtx target;
int align;
int cleared;
int size;
{
tree type = TREE_TYPE (exp);
#ifdef WORD_REGISTER_OPERATIONS
@ -4107,7 +4111,7 @@ store_constructor (exp, target, align, cleared)
if (GET_CODE (target) == REG && REGNO (target) < FIRST_PSEUDO_REGISTER)
{
rtx temp = gen_reg_rtx (GET_MODE (target));
store_constructor (exp, temp, 0);
store_constructor (exp, temp, 0, size);
emit_move_insn (target, temp);
return;
}
@ -4152,7 +4156,7 @@ store_constructor (exp, target, align, cleared)
|| mostly_zeros_p (exp))
{
if (! cleared)
clear_storage (target, expr_size (exp),
clear_storage (target, GEN_INT (size),
(align + BITS_PER_UNIT - 1) / BITS_PER_UNIT);
cleared = 1;
@ -4338,7 +4342,7 @@ store_constructor (exp, target, align, cleared)
if (need_to_clear)
{
if (! cleared)
clear_storage (target, expr_size (exp),
clear_storage (target, GEN_INT (size),
(align + BITS_PER_UNIT - 1) / BITS_PER_UNIT);
cleared = 1;
}
@ -4443,7 +4447,8 @@ store_constructor (exp, target, align, cleared)
addr = gen_rtx_PLUS (Pmode, XEXP (target, 0), pos_rtx);
xtarget = change_address (target, mode, addr);
if (TREE_CODE (value) == CONSTRUCTOR)
store_constructor (value, xtarget, align, cleared);
store_constructor (value, xtarget, align, cleared,
bitsize / BITS_PER_UNIT);
else
store_expr (value, xtarget, 0);
@ -4517,7 +4522,7 @@ store_constructor (exp, target, align, cleared)
if (elt == NULL_TREE)
{
if (!cleared)
clear_storage (target, expr_size (exp),
clear_storage (target, GEN_INT (size),
TYPE_ALIGN (type) / BITS_PER_UNIT);
return;
}
@ -6363,7 +6368,8 @@ expand_expr (exp, target, tmode, modifier)
RTX_UNCHANGING_P (target) = 1;
}
store_constructor (exp, target, TYPE_ALIGN (TREE_TYPE (exp)), 0);
store_constructor (exp, target, TYPE_ALIGN (TREE_TYPE (exp)), 0,
int_size_in_bytes (TREE_TYPE (exp)));
return target;
}