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find_reloads_toplev: add new parameter "address_reloaded". 

From-SVN: r35196
This commit is contained in:
Aldy Hernandez 2000-07-23 06:17:41 +00:00 committed by Aldy Hernandez
parent 8039a4ea73
commit 9246aadb57
2 changed files with 34 additions and 12 deletions
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6
gcc/ChangeLog
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@ -1,3 +1,9 @@
2000-07-22 Aldy Hernandez <aldyh@redhat.com>
* reload.c (find_reloads_toplev): Add new parameter
"address_reloaded".
(find_reloads): Add new parameter to find_reloads_toplev calls.
2000-07-22 Jeffrey Oldham <oldham@codesourcery.com>
* collect2.c (main): Typo fixed.

40
gcc/reload.c
View File

@ -258,7 +258,7 @@ static struct decomposition decompose PARAMS ((rtx));
static int immune_p PARAMS ((rtx, rtx, struct decomposition));
static int alternative_allows_memconst PARAMS ((const char *, int));
static rtx find_reloads_toplev PARAMS ((rtx, int, enum reload_type, int,
int, rtx));
int, rtx, int *));
static rtx make_memloc PARAMS ((rtx, int));
static int find_reloads_address PARAMS ((enum machine_mode, rtx *, rtx, rtx *,
int, enum reload_type, int, rtx));
@ -2592,7 +2592,8 @@ find_reloads (insn, replace, ind_levels, live_known, reload_reg_p)
ind_levels,
set != 0
&& &SET_DEST (set) == recog_data.operand_loc[i],
insn);
insn,
&address_reloaded[i]);
/* If we made a MEM to load (a part of) the stackslot of a pseudo
that didn't get a hard register, emit a USE with a REG_EQUAL
@ -2616,7 +2617,8 @@ find_reloads (insn, replace, ind_levels, live_known, reload_reg_p)
a unary operator by reloading the operand. */
substed_operand[i] = recog_data.operand[i]
= find_reloads_toplev (recog_data.operand[i], i, address_type[i],
ind_levels, 0, insn);
ind_levels, 0, insn,
&address_reloaded[i]);
else if (code == REG)
{
/* This is equivalent to calling find_reloads_toplev.
@ -2644,7 +2646,8 @@ find_reloads (insn, replace, ind_levels, live_known, reload_reg_p)
of a constant equivalence was checked above. */
substed_operand[i] = recog_data.operand[i]
= find_reloads_toplev (recog_data.operand[i], i, address_type[i],
ind_levels, 0, insn);
ind_levels, 0, insn,
&address_reloaded[i]);
}
/* If the operand is still a register (we didn't replace it with an
equivalent), get the preferred class to reload it into. */
@ -3540,7 +3543,8 @@ find_reloads (insn, replace, ind_levels, live_known, reload_reg_p)
substed_operand[i] = recog_data.operand[i]
= find_reloads_toplev (force_const_mem (operand_mode[i],
recog_data.operand[i]),
i, address_type[i], ind_levels, 0, insn);
i, address_type[i], ind_levels, 0, insn,
NULL);
if (alternative_allows_memconst (recog_data.constraints[i],
goal_alternative_number))
goal_alternative_win[i] = 1;
@ -4169,16 +4173,21 @@ alternative_allows_memconst (constraint, altnum)
INSN, if nonzero, is the insn in which we do the reload. It is used
to determine if we may generate output reloads, and where to put USEs
for pseudos that we have to replace with stack slots. */
for pseudos that we have to replace with stack slots.
ADDRESS_RELOADED. If nonzero, is a pointer to where we put the
result of find_reloads_address. */
static rtx
find_reloads_toplev (x, opnum, type, ind_levels, is_set_dest, insn)
find_reloads_toplev (x, opnum, type, ind_levels, is_set_dest, insn,
address_reloaded)
rtx x;
int opnum;
enum reload_type type;
int ind_levels;
int is_set_dest;
rtx insn;
int *address_reloaded;
{
register RTX_CODE code = GET_CODE (x);
@ -4211,8 +4220,10 @@ find_reloads_toplev (x, opnum, type, ind_levels, is_set_dest, insn)
if (replace_reloads && recog_data.operand[opnum] != x)
emit_insn_before (gen_rtx_USE (VOIDmode, x), insn);
x = mem;
find_reloads_address (GET_MODE (x), &x, XEXP (x, 0), &XEXP (x, 0),
opnum, type, ind_levels, insn);
i = find_reloads_address (GET_MODE (x), &x, XEXP (x, 0), &XEXP (x, 0),
opnum, type, ind_levels, insn);
if (address_reloaded)
*address_reloaded = i;
}
}
return x;
@ -4220,8 +4231,12 @@ find_reloads_toplev (x, opnum, type, ind_levels, is_set_dest, insn)
if (code == MEM)
{
rtx tem = x;
find_reloads_address (GET_MODE (x), &tem, XEXP (x, 0), &XEXP (x, 0),
opnum, type, ind_levels, insn);
i = find_reloads_address (GET_MODE (x), &tem, XEXP (x, 0), &XEXP (x, 0),
opnum, type, ind_levels, insn);
if (address_reloaded)
*address_reloaded = i;
return tem;
}
@ -4326,7 +4341,8 @@ find_reloads_toplev (x, opnum, type, ind_levels, is_set_dest, insn)
if (fmt[i] == 'e')
{
rtx new_part = find_reloads_toplev (XEXP (x, i), opnum, type,
ind_levels, is_set_dest, insn);
ind_levels, is_set_dest, insn,
address_reloaded);
/* If we have replaced a reg with it's equivalent memory loc -
that can still be handled here e.g. if it's in a paradoxical
subreg - we must make the change in a copy, rather than using