int count = 0;
rtx value = NULL_RTX;
+ /* Registers mentioned in the clobber list for an asm cannot be reused
+ within the body of the asm. Invalidate those registers now so that
+ we don't try to substitute values for them. */
+ if (asm_noperands (body) >= 0)
+ {
+ for (i = XVECLEN (body, 0) - 1; i >= 0; --i)
+ {
+ rtx part = XVECEXP (body, 0, i);
+ if (GET_CODE (part) == CLOBBER && REG_P (XEXP (part, 0)))
+ cselib_invalidate_rtx (XEXP (part, 0));
+ }
+ }
+
/* If every action in a PARALLEL is a noop, we can delete
the entire PARALLEL. */
for (i = XVECLEN (body, 0) - 1; i >= 0; --i)
rtx insn;
rtx testreg = gen_rtx_REG (VOIDmode, -1);
- cselib_init ();
+ cselib_init (true);
init_alias_analysis ();
for (insn = first; insn; insn = NEXT_INSN (insn))
cselib_val *val;
struct elt_loc_list *l;
#ifdef LOAD_EXTEND_OP
- enum rtx_code extend_op = NIL;
+ enum rtx_code extend_op = UNKNOWN;
#endif
dreg = true_regnum (SET_DEST (set));
that combine made wrt the contents of sign bits. We'll do this by
generating an extend instruction instead of a reg->reg copy. Thus
the destination must be a register that we can widen. */
- if (GET_CODE (src) == MEM
+ if (MEM_P (src)
&& GET_MODE_BITSIZE (GET_MODE (src)) < BITS_PER_WORD
- && (extend_op = LOAD_EXTEND_OP (GET_MODE (src))) != NIL
- && GET_CODE (SET_DEST (set)) != REG)
+ && (extend_op = LOAD_EXTEND_OP (GET_MODE (src))) != UNKNOWN
+ && !REG_P (SET_DEST (set)))
return 0;
#endif
return 0;
/* If memory loads are cheaper than register copies, don't change them. */
- if (GET_CODE (src) == MEM)
+ if (MEM_P (src))
old_cost = MEMORY_MOVE_COST (GET_MODE (src), dclass, 1);
- else if (GET_CODE (src) == REG)
+ else if (REG_P (src))
old_cost = REGISTER_MOVE_COST (GET_MODE (src),
REGNO_REG_CLASS (REGNO (src)), dclass);
else
if (CONSTANT_P (this_rtx) && ! references_value_p (this_rtx, 0))
{
#ifdef LOAD_EXTEND_OP
- if (extend_op != NIL)
+ if (extend_op != UNKNOWN)
{
HOST_WIDE_INT this_val;
#endif
this_cost = rtx_cost (this_rtx, SET);
}
- else if (GET_CODE (this_rtx) == REG)
+ else if (REG_P (this_rtx))
{
#ifdef LOAD_EXTEND_OP
- if (extend_op != NIL)
+ if (extend_op != UNKNOWN)
{
this_rtx = gen_rtx_fmt_e (extend_op, word_mode, this_rtx);
this_cost = rtx_cost (this_rtx, SET);
tends to lead to smaller instructions on some machines. */
if (this_cost < old_cost
|| (this_cost == old_cost
- && GET_CODE (this_rtx) == REG
- && GET_CODE (SET_SRC (set)) != REG))
+ && REG_P (this_rtx)
+ && !REG_P (SET_SRC (set))))
{
#ifdef LOAD_EXTEND_OP
if (GET_MODE_BITSIZE (GET_MODE (SET_DEST (set))) < BITS_PER_WORD
- && extend_op != NIL
+ && extend_op != UNKNOWN
#ifdef CANNOT_CHANGE_MODE_CLASS
&& !CANNOT_CHANGE_MODE_CLASS (GET_MODE (SET_DEST (set)),
word_mode,
/* cselib blows up on CODE_LABELs. Trying to fix that doesn't seem
right, so avoid the problem here. Likewise if we have a constant
and the insn pattern doesn't tell us the mode we need. */
- if (GET_CODE (recog_data.operand[i]) == CODE_LABEL
+ if (LABEL_P (recog_data.operand[i])
|| (CONSTANT_P (recog_data.operand[i])
&& recog_data.operand_mode[i] == VOIDmode))
continue;
op = recog_data.operand[i];
mode = GET_MODE (op);
#ifdef LOAD_EXTEND_OP
- if (GET_CODE (op) == MEM
+ if (MEM_P (op)
&& GET_MODE_BITSIZE (mode) < BITS_PER_WORD
- && LOAD_EXTEND_OP (mode) != NIL)
+ && LOAD_EXTEND_OP (mode) != UNKNOWN)
{
rtx set = single_set (insn);
- /* We might have multiple sets, some of which do implict
+ /* We might have multiple sets, some of which do implicit
extension. Punt on this for now. */
if (! set)
continue;
- /* If the destination is a also MEM or a STRICT_LOW_PART, no
+ /* If the destination is also a MEM or a STRICT_LOW_PART, no
extension applies.
Also, if there is an explicit extension, we don't have to
worry about an implicit one. */
- else if (GET_CODE (SET_DEST (set)) == MEM
+ else if (MEM_P (SET_DEST (set))
|| GET_CODE (SET_DEST (set)) == STRICT_LOW_PART
|| GET_CODE (SET_SRC (set)) == ZERO_EXTEND
|| GET_CODE (SET_SRC (set)) == SIGN_EXTEND)
; /* Continue ordinary processing. */
+#ifdef CANNOT_CHANGE_MODE_CLASS
+ /* If the register cannot change mode to word_mode, it follows that
+ it cannot have been used in word_mode. */
+ else if (REG_P (SET_DEST (set))
+ && CANNOT_CHANGE_MODE_CLASS (GET_MODE (SET_DEST (set)),
+ word_mode,
+ REGNO_REG_CLASS (REGNO (SET_DEST (set)))))
+ ; /* Continue ordinary processing. */
+#endif
/* If this is a straight load, make the extension explicit. */
- else if (GET_CODE (SET_DEST (set)) == REG
+ else if (REG_P (SET_DEST (set))
&& recog_data.n_operands == 2
&& SET_SRC (set) == op
&& SET_DEST (set) == recog_data.operand[1-i])
continue;
for (l = v->locs; l; l = l->next)
- if (GET_CODE (l->loc) == REG)
+ if (REG_P (l->loc))
SET_HARD_REG_BIT (equiv_regs[i], REGNO (l->loc));
}
FOR_EACH_BB_REVERSE (bb)
{
insn = BB_HEAD (bb);
- if (GET_CODE (insn) == CODE_LABEL)
+ if (LABEL_P (insn))
{
HARD_REG_SET live;
/* We cannot do our optimization across labels. Invalidating all the use
information we have would be costly, so we just note where the label
is and then later disable any optimization that would cross it. */
- if (GET_CODE (insn) == CODE_LABEL)
+ if (LABEL_P (insn))
last_label_ruid = reload_combine_ruid;
- else if (GET_CODE (insn) == BARRIER)
+ else if (BARRIER_P (insn))
for (r = 0; r < FIRST_PSEUDO_REGISTER; r++)
if (! fixed_regs[r])
reg_state[r].use_index = RELOAD_COMBINE_MAX_USES;
does not yet show whether REGY changes in this insn. */
set = single_set (insn);
if (set != NULL_RTX
- && GET_CODE (SET_DEST (set)) == REG
- && (HARD_REGNO_NREGS (REGNO (SET_DEST (set)),
- GET_MODE (SET_DEST (set)))
+ && REG_P (SET_DEST (set))
+ && (hard_regno_nregs[REGNO (SET_DEST (set))]
+ [GET_MODE (SET_DEST (set))]
== 1)
&& GET_CODE (SET_SRC (set)) == PLUS
- && GET_CODE (XEXP (SET_SRC (set), 1)) == REG
+ && REG_P (XEXP (SET_SRC (set), 1))
&& rtx_equal_p (XEXP (SET_SRC (set), 0), SET_DEST (set))
&& !rtx_equal_p (XEXP (SET_SRC (set), 1), SET_DEST (set))
&& last_label_ruid < reg_state[REGNO (SET_DEST (set))].use_ruid)
i)
&& reg_state[i].use_index == RELOAD_COMBINE_MAX_USES
&& reg_state[i].store_ruid <= reg_state[regno].use_ruid
- && HARD_REGNO_NREGS (i, GET_MODE (reg)) == 1)
+ && hard_regno_nregs[i][GET_MODE (reg)] == 1)
{
rtx index_reg = gen_rtx_REG (GET_MODE (reg), i);
note_stores (PATTERN (insn), reload_combine_note_store, NULL);
- if (GET_CODE (insn) == CALL_INSN)
+ if (CALL_P (insn))
{
rtx link;
link = XEXP (link, 1))
{
rtx usage_rtx = XEXP (XEXP (link, 0), 0);
- if (GET_CODE (usage_rtx) == REG)
+ if (REG_P (usage_rtx))
{
unsigned int i;
unsigned int start_reg = REGNO (usage_rtx);
unsigned int num_regs =
- HARD_REGNO_NREGS (start_reg, GET_MODE (usage_rtx));
+ hard_regno_nregs[start_reg][GET_MODE (usage_rtx)];
unsigned int end_reg = start_reg + num_regs - 1;
for (i = start_reg; i <= end_reg; i++)
if (GET_CODE (XEXP (link, 0)) == CLOBBER)
}
}
- else if (GET_CODE (insn) == JUMP_INSN
+ else if (JUMP_P (insn)
&& GET_CODE (PATTERN (insn)) != RETURN)
{
/* Non-spill registers might be used at the call destination in
for (note = REG_NOTES (insn); note; note = XEXP (note, 1))
{
if (REG_NOTE_KIND (note) == REG_INC
- && GET_CODE (XEXP (note, 0)) == REG)
+ && REG_P (XEXP (note, 0)))
{
int regno = REGNO (XEXP (note, 0));
GET_MODE (dst));
dst = SUBREG_REG (dst);
}
- if (GET_CODE (dst) != REG)
+ if (!REG_P (dst))
return;
regno += REGNO (dst);
|| GET_CODE (SET_DEST (set)) == SIGN_EXTRACT
|| GET_CODE (SET_DEST (set)) == STRICT_LOW_PART)
{
- for (i = HARD_REGNO_NREGS (regno, mode) - 1 + regno; i >= regno; i--)
+ for (i = hard_regno_nregs[regno][mode] - 1 + regno; i >= regno; i--)
{
reg_state[i].use_index = -1;
reg_state[i].store_ruid = reload_combine_ruid;
}
else
{
- for (i = HARD_REGNO_NREGS (regno, mode) - 1 + regno; i >= regno; i--)
+ for (i = hard_regno_nregs[regno][mode] - 1 + regno; i >= regno; i--)
{
reg_state[i].store_ruid = reload_combine_ruid;
reg_state[i].use_index = RELOAD_COMBINE_MAX_USES;
switch (code)
{
case SET:
- if (GET_CODE (SET_DEST (x)) == REG)
+ if (REG_P (SET_DEST (x)))
{
reload_combine_note_use (&SET_SRC (x), insn);
return;
case USE:
/* If this is the USE of a return value, we can't change it. */
- if (GET_CODE (XEXP (x, 0)) == REG && REG_FUNCTION_VALUE_P (XEXP (x, 0)))
+ if (REG_P (XEXP (x, 0)) && REG_FUNCTION_VALUE_P (XEXP (x, 0)))
{
/* Mark the return register as used in an unknown fashion. */
rtx reg = XEXP (x, 0);
int regno = REGNO (reg);
- int nregs = HARD_REGNO_NREGS (regno, GET_MODE (reg));
+ int nregs = hard_regno_nregs[regno][GET_MODE (reg)];
while (--nregs >= 0)
reg_state[regno + nregs].use_index = -1;
break;
case CLOBBER:
- if (GET_CODE (SET_DEST (x)) == REG)
+ if (REG_P (SET_DEST (x)))
{
/* No spurious CLOBBERs of pseudo registers may remain. */
if (REGNO (SET_DEST (x)) >= FIRST_PSEUDO_REGISTER)
case PLUS:
/* We are interested in (plus (reg) (const_int)) . */
- if (GET_CODE (XEXP (x, 0)) != REG
+ if (!REG_P (XEXP (x, 0))
|| GET_CODE (XEXP (x, 1)) != CONST_INT)
break;
offset = XEXP (x, 1);
if (regno >= FIRST_PSEUDO_REGISTER)
abort ();
- nregs = HARD_REGNO_NREGS (regno, GET_MODE (x));
+ nregs = hard_regno_nregs[regno][GET_MODE (x)];
/* We can't substitute into multi-hard-reg uses. */
if (nregs > 1)
{
rtx pat, note;
- if (GET_CODE (insn) == CODE_LABEL)
+ if (LABEL_P (insn))
{
move2add_last_label_luid = move2add_luid;
/* We're going to increment move2add_luid twice after a
/* For simplicity, we only perform this optimization on
straightforward SETs. */
if (GET_CODE (pat) == SET
- && GET_CODE (SET_DEST (pat)) == REG)
+ && REG_P (SET_DEST (pat)))
{
rtx reg = SET_DEST (pat);
int regno = REGNO (reg);
else if (rtx_cost (new_src, PLUS) < rtx_cost (src, SET)
&& have_add2_insn (reg, new_src))
{
- rtx newpat = gen_rtx_SET (VOIDmode,
- reg,
- gen_rtx_PLUS (GET_MODE (reg),
- reg,
- new_src));
- validate_change (insn, &PATTERN (insn), newpat, 0);
+ rtx tem = gen_rtx_PLUS (GET_MODE (reg), reg, new_src);
+ validate_change (insn, &SET_SRC (pat), tem, 0);
}
else
{
(set (REGX) (PLUS (REGX) (CONST_INT A)))
...
(set (REGX) (plus (REGX) (CONST_INT B-A))) */
- else if (GET_CODE (src) == REG
+ else if (REG_P (src)
&& reg_set_luid[regno] == reg_set_luid[REGNO (src)]
&& reg_base_reg[regno] == reg_base_reg[REGNO (src)]
&& MODES_OK_FOR_MOVE2ADD (GET_MODE (reg),
for (note = REG_NOTES (insn); note; note = XEXP (note, 1))
{
if (REG_NOTE_KIND (note) == REG_INC
- && GET_CODE (XEXP (note, 0)) == REG)
+ && REG_P (XEXP (note, 0)))
{
/* Reset the information about this register. */
int regno = REGNO (XEXP (note, 0));
/* If INSN is a conditional branch, we try to extract an
implicit set out of it. */
- if (any_condjump_p (insn) && onlyjump_p (insn))
+ if (any_condjump_p (insn))
{
rtx cnd = fis_get_condition (insn);
if (cnd != NULL_RTX
&& GET_CODE (cnd) == NE
- && GET_CODE (XEXP (cnd, 0)) == REG
+ && REG_P (XEXP (cnd, 0))
+ && !reg_set_p (XEXP (cnd, 0), insn)
/* The following two checks, which are also in
move2add_note_store, are intended to reduce the
number of calls to gen_rtx_SET to avoid memory
allocation if possible. */
&& SCALAR_INT_MODE_P (GET_MODE (XEXP (cnd, 0)))
- && HARD_REGNO_NREGS (REGNO (XEXP (cnd, 0)), GET_MODE (XEXP (cnd, 0))) == 1
+ && hard_regno_nregs[REGNO (XEXP (cnd, 0))][GET_MODE (XEXP (cnd, 0))] == 1
&& GET_CODE (XEXP (cnd, 1)) == CONST_INT)
{
rtx implicit_set =
/* If this is a CALL_INSN, all call used registers are stored with
unknown values. */
- if (GET_CODE (insn) == CALL_INSN)
+ if (CALL_P (insn))
{
for (i = FIRST_PSEUDO_REGISTER - 1; i >= 0; i--)
{
/* Some targets do argument pushes without adding REG_INC notes. */
- if (GET_CODE (dst) == MEM)
+ if (MEM_P (dst))
{
dst = XEXP (dst, 0);
if (GET_CODE (dst) == PRE_INC || GET_CODE (dst) == POST_INC
reg_set_luid[REGNO (XEXP (dst, 0))] = 0;
return;
}
- if (GET_CODE (dst) != REG)
+ if (!REG_P (dst))
return;
regno += REGNO (dst);
if (SCALAR_INT_MODE_P (mode)
- && HARD_REGNO_NREGS (regno, mode) == 1 && GET_CODE (set) == SET
+ && hard_regno_nregs[regno][mode] == 1 && GET_CODE (set) == SET
&& GET_CODE (SET_DEST (set)) != ZERO_EXTRACT
&& GET_CODE (SET_DEST (set)) != SIGN_EXTRACT
&& GET_CODE (SET_DEST (set)) != STRICT_LOW_PART)
switch (GET_CODE (src))
{
case PLUS:
- if (GET_CODE (XEXP (src, 0)) == REG)
+ if (REG_P (XEXP (src, 0)))
{
base_reg = XEXP (src, 0);
if (GET_CODE (XEXP (src, 1)) == CONST_INT)
offset = INTVAL (XEXP (src, 1));
- else if (GET_CODE (XEXP (src, 1)) == REG
+ else if (REG_P (XEXP (src, 1))
&& (reg_set_luid[REGNO (XEXP (src, 1))]
> move2add_last_label_luid)
&& (MODES_OK_FOR_MOVE2ADD
}
else
{
- unsigned int endregno = regno + HARD_REGNO_NREGS (regno, mode);
+ unsigned int endregno = regno + hard_regno_nregs[regno][mode];
for (i = regno; i < endregno; i++)
/* Reset the information about this register. */