insn_class
= (insn_letter == 'r' ? GENERAL_REGS
: REG_CLASS_FROM_LETTER ((unsigned char) insn_letter));
- }
- if (insn_class == NO_REGS
- || (in_p
+ if (insn_class == NO_REGS)
+ abort ();
+ if (in_p
&& insn_data[(int) icode].operand[!in_p].constraint[0] != '=')
- /* The scratch register's constraint must start with "=&". */
- || insn_data[(int) icode].operand[2].constraint[0] != '='
+ abort ();
+ }
+
+ /* The scratch register's constraint must start with "=&". */
+ if (insn_data[(int) icode].operand[2].constraint[0] != '='
|| insn_data[(int) icode].operand[2].constraint[1] != '&')
abort ();
int opnum;
enum reload_type type;
{
- register int i;
+ int i;
int dont_share = 0;
int dont_remove_subreg = 0;
rtx *in_subreg_loc = 0, *out_subreg_loc = 0;
Often this is done earlier, but not always in find_reloads_address. */
if (in != 0 && GET_CODE (in) == REG)
{
- register int regno = REGNO (in);
+ int regno = REGNO (in);
if (regno >= FIRST_PSEUDO_REGISTER && reg_renumber[regno] < 0
&& reg_equiv_constant[regno] != 0)
(in the case of a parameter). */
if (out != 0 && GET_CODE (out) == REG)
{
- register int regno = REGNO (out);
+ int regno = REGNO (out);
if (regno >= FIRST_PSEUDO_REGISTER && reg_renumber[regno] < 0
&& reg_equiv_constant[regno] != 0)
Finally, reload the inner expression if it is a register that is in
the class whose registers cannot be referenced in a different size
- and M1 is not the same size as M2. If SUBREG_BYTE is nonzero, we
+ and M1 is not the same size as M2. If subreg_lowpart_p is false, we
cannot reload just the inside since we might end up with the wrong
register class. But if it is inside a STRICT_LOW_PART, we have
no choice, so we hope we do get the right register class there. */
if (in != 0 && GET_CODE (in) == SUBREG
- && (SUBREG_BYTE (in) == 0 || strict_low)
+ && (subreg_lowpart_p (in) || strict_low)
#ifdef CLASS_CANNOT_CHANGE_MODE
&& (class != CLASS_CANNOT_CHANGE_MODE
|| ! CLASS_CANNOT_CHANGE_MODE_P (GET_MODE (SUBREG_REG (in)), inmode))
&& REGNO (SUBREG_REG (in)) < FIRST_PSEUDO_REGISTER
/* The case where out is nonzero
is handled differently in the following statement. */
- && (out == 0 || SUBREG_BYTE (in) == 0)
+ && (out == 0 || subreg_lowpart_p (in))
&& ((GET_MODE_SIZE (inmode) <= UNITS_PER_WORD
&& (GET_MODE_SIZE (GET_MODE (SUBREG_REG (in)))
> UNITS_PER_WORD)
(except in the case of STRICT_LOW_PART,
and in that case the constraint should label it input-output.) */
if (out != 0 && GET_CODE (out) == SUBREG
- && (SUBREG_BYTE (out) == 0 || strict_low)
+ && (subreg_lowpart_p (out) || strict_low)
#ifdef CLASS_CANNOT_CHANGE_MODE
&& (class != CLASS_CANNOT_CHANGE_MODE
|| ! CLASS_CANNOT_CHANGE_MODE_P (GET_MODE (SUBREG_REG (out)),
{
if (inloc != 0)
{
- register struct replacement *r = &replacements[n_replacements++];
+ struct replacement *r = &replacements[n_replacements++];
r->what = i;
r->subreg_loc = in_subreg_loc;
r->where = inloc;
}
if (outloc != 0 && outloc != inloc)
{
- register struct replacement *r = &replacements[n_replacements++];
+ struct replacement *r = &replacements[n_replacements++];
r->what = i;
r->where = outloc;
r->subreg_loc = out_subreg_loc;
{
if (replace_reloads)
{
- register struct replacement *r = &replacements[n_replacements++];
+ struct replacement *r = &replacements[n_replacements++];
r->what = reloadnum;
r->where = loc;
r->subreg_loc = 0;
{
if (GET_CODE (x) == SET || GET_CODE (x) == CLOBBER)
{
- register rtx op0 = SET_DEST (x);
+ rtx op0 = SET_DEST (x);
while (GET_CODE (op0) == SUBREG)
op0 = SUBREG_REG (op0);
}
else if (GET_CODE (x) == PARALLEL)
{
- register int i = XVECLEN (x, 0) - 1;
+ int i = XVECLEN (x, 0) - 1;
for (; i >= 0; i--)
if (hard_reg_set_here_p (beg_regno, end_regno, XVECEXP (x, 0, i)))
int
strict_memory_address_p (mode, addr)
enum machine_mode mode ATTRIBUTE_UNUSED;
- register rtx addr;
+ rtx addr;
{
GO_IF_LEGITIMATE_ADDRESS (mode, addr, win);
return 0;
int
operands_match_p (x, y)
- register rtx x, y;
+ rtx x, y;
{
- register int i;
- register RTX_CODE code = GET_CODE (x);
- register const char *fmt;
+ int i;
+ RTX_CODE code = GET_CODE (x);
+ const char *fmt;
int success_2;
if (x == y)
&& (GET_CODE (y) == REG || (GET_CODE (y) == SUBREG
&& GET_CODE (SUBREG_REG (y)) == REG)))
{
- register int j;
+ int j;
if (code == SUBREG)
{
int live_known;
short *reload_reg_p;
{
- register int insn_code_number;
- register int i, j;
+ int insn_code_number;
+ int i, j;
int noperands;
/* These start out as the constraints for the insn
and they are chewed up as we consider alternatives. */
for (i = 0; i < noperands; i++)
{
- register char *p;
- register int c;
+ char *p;
+ int c;
substed_operand[i] = recog_data.operand[i];
p = constraints[i];
commutative = i;
}
- else if (c >= '0' && c <= '9')
+ else if (ISDIGIT (c))
{
- c -= '0';
+ c = strtoul (p - 1, &p, 10);
+
operands_match[c][i]
= operands_match_p (recog_data.operand[c],
recog_data.operand[i]);
for (i = 0; i < noperands; i++)
{
- register RTX_CODE code = GET_CODE (recog_data.operand[i]);
+ RTX_CODE code = GET_CODE (recog_data.operand[i]);
address_reloaded[i] = 0;
operand_type[i] = (modified[i] == RELOAD_READ ? RELOAD_FOR_INPUT
When we find a pseudo always equivalent to a constant,
we replace it by the constant. We must be sure, however,
that we don't try to replace it in the insn in which it
- is being set. */
- register int regno = REGNO (recog_data.operand[i]);
+ is being set. */
+ int regno = REGNO (recog_data.operand[i]);
if (reg_equiv_constant[regno] != 0
&& (set == 0 || &SET_DEST (set) != recog_data.operand_loc[i]))
{
for (i = 0; i < noperands; i++)
{
- register char *p = constraints[i];
- register int win = 0;
+ char *p = constraints[i];
+ int win = 0;
int did_match = 0;
/* 0 => this operand can be reloaded somehow for this alternative. */
int badop = 1;
/* 0 => this operand can be reloaded if the alternative allows regs. */
int winreg = 0;
int c;
- register rtx operand = recog_data.operand[i];
+ rtx operand = recog_data.operand[i];
int offset = 0;
/* Nonzero means this is a MEM that must be reloaded into a reg
regardless of what the constraint says. */
case '0': case '1': case '2': case '3': case '4':
case '5': case '6': case '7': case '8': case '9':
+ c = strtoul (p - 1, &p, 10);
- c -= '0';
this_alternative_matches[i] = c;
/* We are supposed to match a previous operand.
If we do, we win if that one did.
swapped = !swapped;
if (swapped)
{
- register enum reg_class tclass;
- register int t;
+ enum reg_class tclass;
+ int t;
recog_data.operand[commutative] = substed_operand[commutative + 1];
recog_data.operand[commutative + 1] = substed_operand[commutative];
if (goal_alternative_swapped)
{
- register rtx tem;
+ rtx tem;
tem = substed_operand[commutative];
substed_operand[commutative] = substed_operand[commutative + 1];
if (GET_CODE (operand) == REG)
{
if (modified[i] != RELOAD_WRITE)
- emit_insn_before (gen_rtx_USE (VOIDmode, operand), insn);
+ /* We mark the USE with QImode so that we recognize
+ it as one that can be safely deleted at the end
+ of reload. */
+ PUT_MODE (emit_insn_before (gen_rtx_USE (VOIDmode, operand),
+ insn), QImode);
if (modified[i] != RELOAD_READ)
emit_insn_after (gen_rtx_CLOBBER (VOIDmode, operand), insn);
}
const char *constraint;
int altnum;
{
- register int c;
+ int c;
/* Skip alternatives before the one requested. */
while (altnum > 0)
{
rtx insn;
int *address_reloaded;
{
- register RTX_CODE code = GET_CODE (x);
+ RTX_CODE code = GET_CODE (x);
- register const char *fmt = GET_RTX_FORMAT (code);
- register int i;
+ const char *fmt = GET_RTX_FORMAT (code);
+ int i;
int copied;
if (code == REG)
{
/* This code is duplicated for speed in find_reloads. */
- register int regno = REGNO (x);
+ int regno = REGNO (x);
if (reg_equiv_constant[regno] != 0 && !is_set_dest)
x = reg_equiv_constant[regno];
#if 0
this substitution. We have to emit a USE of the pseudo so
that delete_output_reload can see it. */
if (replace_reloads && recog_data.operand[opnum] != x)
- emit_insn_before (gen_rtx_USE (VOIDmode, x), insn);
+ /* We mark the USE with QImode so that we recognize it
+ as one that can be safely deleted at the end of
+ reload. */
+ PUT_MODE (emit_insn_before (gen_rtx_USE (VOIDmode, x), insn),
+ QImode);
x = mem;
i = find_reloads_address (GET_MODE (x), &x, XEXP (x, 0), &XEXP (x, 0),
opnum, type, ind_levels, insn);
the register (this should never happen because one of the cases
above should handle it). */
- register int regno = REGNO (SUBREG_REG (x));
+ int regno = REGNO (SUBREG_REG (x));
rtx tem;
if (subreg_lowpart_p (x)
int ind_levels;
rtx insn;
{
- register int regno;
+ int regno;
int removed_and = 0;
rtx tem;
&& ! rtx_equal_p (tem, reg_equiv_mem[regno]))
{
*loc = tem;
- emit_insn_before (gen_rtx_USE (VOIDmode, ad), insn);
+ /* We mark the USE with QImode so that we
+ recognize it as one that can be safely
+ deleted at the end of reload. */
+ PUT_MODE (emit_insn_before (gen_rtx_USE (VOIDmode, ad),
+ insn), QImode);
+
/* This doesn't really count as replacing the address
as a whole, since it is still a memory access. */
}
rtx ad;
rtx insn;
{
- register RTX_CODE code = GET_CODE (ad);
- register int i;
- register const char *fmt;
+ RTX_CODE code = GET_CODE (ad);
+ int i;
+ const char *fmt;
switch (code)
{
case REG:
{
- register int regno = REGNO (ad);
+ int regno = REGNO (ad);
if (reg_equiv_constant[regno] != 0)
{
if (! rtx_equal_p (mem, reg_equiv_mem[regno]))
{
subst_reg_equivs_changed = 1;
- emit_insn_before (gen_rtx_USE (VOIDmode, ad), insn);
+ /* We mark the USE with QImode so that we recognize it
+ as one that can be safely deleted at the end of
+ reload. */
+ PUT_MODE (emit_insn_before (gen_rtx_USE (VOIDmode, ad), insn),
+ QImode);
return mem;
}
}
int ind_levels;
rtx insn;
{
- register RTX_CODE code = GET_CODE (x);
+ RTX_CODE code = GET_CODE (x);
switch (code)
{
case PLUS:
{
- register rtx orig_op0 = XEXP (x, 0);
- register rtx orig_op1 = XEXP (x, 1);
- register RTX_CODE code0 = GET_CODE (orig_op0);
- register RTX_CODE code1 = GET_CODE (orig_op1);
- register rtx op0 = orig_op0;
- register rtx op1 = orig_op1;
+ rtx orig_op0 = XEXP (x, 0);
+ rtx orig_op1 = XEXP (x, 1);
+ RTX_CODE code0 = GET_CODE (orig_op0);
+ RTX_CODE code1 = GET_CODE (orig_op1);
+ rtx op0 = orig_op0;
+ rtx op1 = orig_op1;
if (GET_CODE (op0) == SUBREG)
{
case PRE_DEC:
if (GET_CODE (XEXP (x, 0)) == REG)
{
- register int regno = REGNO (XEXP (x, 0));
+ int regno = REGNO (XEXP (x, 0));
int value = 0;
rtx x_orig = x;
reload it into a register. */
/* Variable `tem' might or might not be used in FIND_REG_INC_NOTE. */
rtx tem ATTRIBUTE_UNUSED = XEXP (x, 0);
- register rtx link;
+ rtx link;
int reloadnum;
/* Since we know we are going to reload this item, don't decrement
case REG:
{
- register int regno = REGNO (x);
+ int regno = REGNO (x);
if (reg_equiv_constant[regno] != 0)
{
}
{
- register const char *fmt = GET_RTX_FORMAT (code);
- register int i;
+ const char *fmt = GET_RTX_FORMAT (code);
+ int i;
for (i = GET_RTX_LENGTH (code) - 1; i >= 0; i--)
{
this substitution. We have to emit a USE of the pseudo so
that delete_output_reload can see it. */
if (replace_reloads && recog_data.operand[opnum] != x)
- emit_insn_before (gen_rtx_USE (VOIDmode, SUBREG_REG (x)), insn);
+ /* We mark the USE with QImode so that we recognize it
+ as one that can be safely deleted at the end of
+ reload. */
+ PUT_MODE (emit_insn_before (gen_rtx_USE (VOIDmode,
+ SUBREG_REG (x)),
+ insn), QImode);
x = tem;
}
}
subst_reloads (insn)
rtx insn;
{
- register int i;
+ int i;
for (i = 0; i < n_replacements; i++)
{
- register struct replacement *r = &replacements[i];
- register rtx reloadreg = rld[r->what].reg_rtx;
+ struct replacement *r = &replacements[i];
+ rtx reloadreg = rld[r->what].reg_rtx;
if (reloadreg)
{
#ifdef ENABLE_CHECKING
}
else if (fmt[i] == 'E')
{
- register int j;
+ int j;
for (j = XVECLEN (x, i) - 1; j >= 0; j--)
if (loc != &XVECEXP (x, i, j)
&& refers_to_regno_for_reload_p (regno, endregno,
rtx
find_equiv_reg (goal, insn, class, other, reload_reg_p, goalreg, mode)
- register rtx goal;
+ rtx goal;
rtx insn;
enum reg_class class;
- register int other;
+ int other;
short *reload_reg_p;
int goalreg;
enum machine_mode mode;
{
- register rtx p = insn;
+ rtx p = insn;
rtx goaltry, valtry, value, where;
- register rtx pat;
- register int regno = -1;
+ rtx pat;
+ int regno = -1;
int valueno;
int goal_mem = 0;
int goal_const = 0;
pat = COND_EXEC_CODE (pat);
if (GET_CODE (pat) == SET || GET_CODE (pat) == CLOBBER)
{
- register rtx dest = SET_DEST (pat);
+ rtx dest = SET_DEST (pat);
while (GET_CODE (dest) == SUBREG
|| GET_CODE (dest) == ZERO_EXTRACT
|| GET_CODE (dest) == SIGN_EXTRACT
dest = XEXP (dest, 0);
if (GET_CODE (dest) == REG)
{
- register int xregno = REGNO (dest);
+ int xregno = REGNO (dest);
int xnregs;
if (REGNO (dest) < FIRST_PSEUDO_REGISTER)
xnregs = HARD_REGNO_NREGS (xregno, GET_MODE (dest));
}
else if (GET_CODE (pat) == PARALLEL)
{
- register int i;
+ int i;
for (i = XVECLEN (pat, 0) - 1; i >= 0; i--)
{
- register rtx v1 = XVECEXP (pat, 0, i);
+ rtx v1 = XVECEXP (pat, 0, i);
if (GET_CODE (v1) == COND_EXEC)
v1 = COND_EXEC_CODE (v1);
if (GET_CODE (v1) == SET || GET_CODE (v1) == CLOBBER)
{
- register rtx dest = SET_DEST (v1);
+ rtx dest = SET_DEST (v1);
while (GET_CODE (dest) == SUBREG
|| GET_CODE (dest) == ZERO_EXTRACT
|| GET_CODE (dest) == SIGN_EXTRACT
dest = XEXP (dest, 0);
if (GET_CODE (dest) == REG)
{
- register int xregno = REGNO (dest);
+ int xregno = REGNO (dest);
int xnregs;
if (REGNO (dest) < FIRST_PSEUDO_REGISTER)
xnregs = HARD_REGNO_NREGS (xregno, GET_MODE (dest));
pat = XEXP (link, 0);
if (GET_CODE (pat) == CLOBBER)
{
- register rtx dest = SET_DEST (pat);
+ rtx dest = SET_DEST (pat);
if (GET_CODE (dest) == REG)
{
- register int xregno = REGNO (dest);
+ int xregno = REGNO (dest);
int xnregs
= HARD_REGNO_NREGS (xregno, GET_MODE (dest));
If GOAL is a memory ref and its address is not constant,
and this insn P increments a register used in GOAL, return 0. */
{
- register rtx link;
+ rtx link;
for (link = REG_NOTES (p); link; link = XEXP (link, 1))
if (REG_NOTE_KIND (link) == REG_INC
&& GET_CODE (XEXP (link, 0)) == REG)
{
- register int incno = REGNO (XEXP (link, 0));
+ int incno = REGNO (XEXP (link, 0));
if (incno < regno + nregs && incno >= regno)
return 0;
if (incno < valueno + valuenregs && incno >= valueno)
find_inc_amount (x, inced)
rtx x, inced;
{
- register enum rtx_code code = GET_CODE (x);
- register const char *fmt;
- register int i;
+ enum rtx_code code = GET_CODE (x);
+ const char *fmt;
+ int i;
if (code == MEM)
{
- register rtx addr = XEXP (x, 0);
+ rtx addr = XEXP (x, 0);
if ((GET_CODE (addr) == PRE_DEC
|| GET_CODE (addr) == POST_DEC
|| GET_CODE (addr) == PRE_INC
{
if (fmt[i] == 'e')
{
- register int tem = find_inc_amount (XEXP (x, i), inced);
+ int tem = find_inc_amount (XEXP (x, i), inced);
if (tem != 0)
return tem;
}
if (fmt[i] == 'E')
{
- register int j;
+ int j;
for (j = XVECLEN (x, i) - 1; j >= 0; j--)
{
- register int tem = find_inc_amount (XVECEXP (x, i, j), inced);
+ int tem = find_inc_amount (XVECEXP (x, i, j), inced);
if (tem != 0)
return tem;
}
return 0;
}
-static const char *reload_when_needed_name[] =
+static const char *const reload_when_needed_name[] =
{
"RELOAD_FOR_INPUT",
"RELOAD_FOR_OUTPUT",
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