/* Search an insn for pseudo regs that must be in hard regs and are not.
Copyright (C) 1987, 1988, 1989, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
- 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009
+ 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010
Free Software Foundation, Inc.
This file is part of GCC.
#include "system.h"
#include "coretypes.h"
#include "tm.h"
-#include "rtl.h"
+#include "rtl-error.h"
#include "tm_p.h"
#include "insn-config.h"
#include "expr.h"
#include "optabs.h"
#include "recog.h"
+#include "df.h"
#include "reload.h"
#include "regs.h"
#include "addresses.h"
#include "hard-reg-set.h"
#include "flags.h"
-#include "real.h"
#include "output.h"
#include "function.h"
-#include "toplev.h"
#include "params.h"
#include "target.h"
-#include "df.h"
+#include "ira.h"
-/* True if X is a constant that can be forced into the constant pool. */
-#define CONST_POOL_OK_P(X) \
- (CONSTANT_P (X) \
+/* True if X is a constant that can be forced into the constant pool.
+ MODE is the mode of the operand, or VOIDmode if not known. */
+#define CONST_POOL_OK_P(MODE, X) \
+ ((MODE) != VOIDmode \
+ && CONSTANT_P (X) \
&& GET_CODE (X) != HIGH \
- && !targetm.cannot_force_const_mem (X))
+ && !targetm.cannot_force_const_mem (MODE, X))
/* True if C is a non-empty register class that has too few registers
to be safely used as a reload target class. */
-#define SMALL_REGISTER_CLASS_P(C) \
- (reg_class_size [(C)] == 1 \
- || (reg_class_size [(C)] >= 1 && CLASS_LIKELY_SPILLED_P (C)))
+
+static inline bool
+small_register_class_p (reg_class_t rclass)
+{
+ return (reg_class_size [(int) rclass] == 1
+ || (reg_class_size [(int) rclass] >= 1
+ && targetm.class_likely_spilled_p (rclass)));
+}
\f
/* All reloads of the current insn are recorded here. See reload.h for
static int find_reusable_reload (rtx *, rtx, enum reg_class,
enum reload_type, int, int);
static rtx find_dummy_reload (rtx, rtx, rtx *, rtx *, enum machine_mode,
- enum machine_mode, enum reg_class, int, int);
+ enum machine_mode, reg_class_t, int, int);
static int hard_reg_set_here_p (unsigned int, unsigned int, rtx);
static struct decomposition decompose (rtx);
static int immune_p (rtx, rtx, struct decomposition);
static rtx find_reloads_toplev (rtx, int, enum reload_type, int, int, rtx,
int *);
static rtx make_memloc (rtx, int);
-static int maybe_memory_address_p (enum machine_mode, rtx, rtx *);
+static int maybe_memory_address_addr_space_p (enum machine_mode, rtx,
+ addr_space_t, rtx *);
static int find_reloads_address (enum machine_mode, rtx *, rtx, rtx *,
int, enum reload_type, int, rtx);
static rtx subst_reg_equivs (rtx, rtx);
enum machine_mode, int,
enum reload_type, int);
static rtx find_reloads_subreg_address (rtx, int, int, enum reload_type,
- int, rtx);
+ int, rtx, int *);
static void copy_replacements_1 (rtx *, rtx *, int);
static int find_inc_amount (rtx, rtx);
static int refers_to_mem_for_reload_p (rtx);
{
rtx it;
- for (it = reg_equiv_alt_mem_list [regno]; it; it = XEXP (it, 1))
+ for (it = reg_equiv_alt_mem_list (regno); it; it = XEXP (it, 1))
if (rtx_equal_p (XEXP (it, 0), mem))
return;
- reg_equiv_alt_mem_list [regno]
+ reg_equiv_alt_mem_list (regno)
= alloc_EXPR_LIST (REG_EQUIV, mem,
- reg_equiv_alt_mem_list [regno]);
+ reg_equiv_alt_mem_list (regno));
}
\f
/* Determine if any secondary reloads are needed for loading (if IN_P is
might be sensitive to the form of the MEM. */
if (REG_P (x) && REGNO (x) >= FIRST_PSEUDO_REGISTER
- && reg_equiv_mem[REGNO (x)] != 0)
- x = reg_equiv_mem[REGNO (x)];
+ && reg_equiv_mem (REGNO (x)))
+ x = reg_equiv_mem (REGNO (x));
sri.icode = CODE_FOR_nothing;
sri.prev_sri = prev_sri;
- rclass = targetm.secondary_reload (in_p, x, reload_class, reload_mode, &sri);
+ rclass = (enum reg_class) targetm.secondary_reload (in_p, x, reload_class,
+ reload_mode, &sri);
icode = (enum insn_code) sri.icode;
/* If we don't need any secondary registers, done. */
|| (! in_p && rld[s_reload].secondary_out_reload == t_reload))
&& ((in_p && rld[s_reload].secondary_in_icode == t_icode)
|| (! in_p && rld[s_reload].secondary_out_icode == t_icode))
- && (SMALL_REGISTER_CLASS_P (rclass) || SMALL_REGISTER_CLASSES)
+ && (small_register_class_p (rclass)
+ || targetm.small_register_classes_for_mode_p (VOIDmode))
&& MERGABLE_RELOADS (secondary_type, rld[s_reload].when_needed,
opnum, rld[s_reload].opnum))
{
/* If a secondary reload is needed, return its class. If both an intermediate
register and a scratch register is needed, we return the class of the
intermediate register. */
-enum reg_class
-secondary_reload_class (bool in_p, enum reg_class rclass,
- enum machine_mode mode, rtx x)
+reg_class_t
+secondary_reload_class (bool in_p, reg_class_t rclass, enum machine_mode mode,
+ rtx x)
{
enum insn_code icode;
secondary_reload_info sri;
sri.icode = CODE_FOR_nothing;
sri.prev_sri = NULL;
- rclass = targetm.secondary_reload (in_p, x, rclass, mode, &sri);
+ rclass
+ = (enum reg_class) targetm.secondary_reload (in_p, x, rclass, mode, &sri);
icode = (enum insn_code) sri.icode;
/* If there are no secondary reloads at all, we return NO_REGS.
didn't give us a new MEM, make a new one if it isn't valid. */
loc = eliminate_regs (secondary_memlocs[(int) mode], VOIDmode, NULL_RTX);
- mem_valid = strict_memory_address_p (mode, XEXP (loc, 0));
+ mem_valid = strict_memory_address_addr_space_p (mode, XEXP (loc, 0),
+ MEM_ADDR_SPACE (loc));
if (! mem_valid && loc == secondary_memlocs[(int) mode])
loc = copy_rtx (loc);
if (bad || !good)
continue;
- cost = REGISTER_MOVE_COST (outer, (enum reg_class) rclass, dest_class);
+ cost = register_move_cost (outer, (enum reg_class) rclass, dest_class);
if ((reg_class_size[rclass] > best_size
&& (best_cost < 0 || best_cost >= cost))
{
best_class = (enum reg_class) rclass;
best_size = reg_class_size[rclass];
- best_cost = REGISTER_MOVE_COST (outer, (enum reg_class) rclass,
+ best_cost = register_move_cost (outer, (enum reg_class) rclass,
dest_class);
}
}
and the other is at worst neutral.
(A zero compared against anything is neutral.)
- If SMALL_REGISTER_CLASSES, don't use existing reloads unless they are
- for the same thing since that can cause us to need more reload registers
- than we otherwise would. */
+ For targets with small register classes, don't use existing reloads
+ unless they are for the same thing since that can cause us to need
+ more reload registers than we otherwise would. */
for (i = 0; i < n_reloads; i++)
if ((reg_class_subset_p (rclass, rld[i].rclass)
|| (out != 0 && MATCHES (rld[i].out, out)
&& (in == 0 || rld[i].in == 0 || MATCHES (rld[i].in, in))))
&& (rld[i].out == 0 || ! earlyclobber_operand_p (rld[i].out))
- && (SMALL_REGISTER_CLASS_P (rclass) || SMALL_REGISTER_CLASSES)
+ && (small_register_class_p (rclass)
+ || targetm.small_register_classes_for_mode_p (VOIDmode))
&& MERGABLE_RELOADS (type, rld[i].when_needed, opnum, rld[i].opnum))
return i;
&& GET_RTX_CLASS (GET_CODE (in)) == RTX_AUTOINC
&& MATCHES (XEXP (in, 0), rld[i].in)))
&& (rld[i].out == 0 || ! earlyclobber_operand_p (rld[i].out))
- && (SMALL_REGISTER_CLASS_P (rclass) || SMALL_REGISTER_CLASSES)
+ && (small_register_class_p (rclass)
+ || targetm.small_register_classes_for_mode_p (VOIDmode))
&& MERGABLE_RELOADS (type, rld[i].when_needed,
opnum, rld[i].opnum))
{
gcc_assert (regno < FIRST_PSEUDO_REGISTER
|| reg_renumber[regno] >= 0
- || reg_equiv_constant[regno] == NULL_RTX);
+ || reg_equiv_constant (regno) == NULL_RTX);
}
/* reg_equiv_constant only contains constants which are obviously
gcc_assert (regno < FIRST_PSEUDO_REGISTER
|| reg_renumber[regno] >= 0
- || reg_equiv_constant[regno] == NULL_RTX);
+ || reg_equiv_constant (regno) == NULL_RTX);
}
/* If we have a read-write operand with an address side-effect,
/* Narrow down the class of register wanted if that is
desirable on this machine for efficiency. */
{
- enum reg_class preferred_class = rclass;
+ reg_class_t preferred_class = rclass;
if (in != 0)
- preferred_class = PREFERRED_RELOAD_CLASS (in, rclass);
+ preferred_class = targetm.preferred_reload_class (in, rclass);
- /* Output reloads may need analogous treatment, different in detail. */
-#ifdef PREFERRED_OUTPUT_RELOAD_CLASS
+ /* Output reloads may need analogous treatment, different in detail. */
if (out != 0)
- preferred_class = PREFERRED_OUTPUT_RELOAD_CLASS (out, preferred_class);
-#endif
+ preferred_class
+ = targetm.preferred_output_reload_class (out, preferred_class);
/* Discard what the target said if we cannot do it. */
if (preferred_class != NO_REGS
|| (optional && type == RELOAD_FOR_OUTPUT))
- rclass = preferred_class;
+ rclass = (enum reg_class) preferred_class;
}
/* Make sure we use a class that can handle the actual pseudo
Returning zero here ought to be safe as we take care in
find_reloads to not process the reloads when instruction was
replaced by USE. */
-
+
return 0;
}
}
|| rtx_equal_p (secondary_memlocs_elim[(int) rld[output_reload].outmode][rld[i].opnum],
secondary_memlocs_elim[(int) rld[output_reload].outmode][rld[output_reload].opnum]))
#endif
- && (SMALL_REGISTER_CLASSES
+ && (targetm.small_register_classes_for_mode_p (VOIDmode)
? (rld[i].rclass == rld[output_reload].rclass)
: (reg_class_subset_p (rld[i].rclass,
rld[output_reload].rclass)
&& ! reload_inner_reg_of_subreg (rld[i].in, rld[i].inmode,
rld[i].when_needed != RELOAD_FOR_INPUT)
&& (reg_class_size[(int) rld[i].rclass]
- || SMALL_REGISTER_CLASSES)
+ || targetm.small_register_classes_for_mode_p (VOIDmode))
/* We will allow making things slightly worse by combining an
input and an output, but no worse than that. */
&& (rld[i].when_needed == RELOAD_FOR_INPUT
static rtx
find_dummy_reload (rtx real_in, rtx real_out, rtx *inloc, rtx *outloc,
enum machine_mode inmode, enum machine_mode outmode,
- enum reg_class rclass, int for_real, int earlyclobber)
+ reg_class_t rclass, int for_real, int earlyclobber)
{
rtx in = real_in;
rtx out = real_out;
/* Narrow down the reg class, the same way push_reload will;
otherwise we might find a dummy now, but push_reload won't. */
{
- enum reg_class preferred_class = PREFERRED_RELOAD_CLASS (in, rclass);
+ reg_class_t preferred_class = targetm.preferred_reload_class (in, rclass);
if (preferred_class != NO_REGS)
- rclass = preferred_class;
+ rclass = (enum reg_class) preferred_class;
}
/* See if OUT will do. */
return 0;
}
-/* Return 1 if ADDR is a valid memory address for mode MODE,
- and check that each pseudo reg has the proper kind of
- hard reg. */
+/* Return 1 if ADDR is a valid memory address for mode MODE
+ in address space AS, and check that each pseudo reg has the
+ proper kind of hard reg. */
int
-strict_memory_address_p (enum machine_mode mode ATTRIBUTE_UNUSED, rtx addr)
+strict_memory_address_addr_space_p (enum machine_mode mode ATTRIBUTE_UNUSED,
+ rtx addr, addr_space_t as)
{
#ifdef GO_IF_LEGITIMATE_ADDRESS
+ gcc_assert (ADDR_SPACE_GENERIC_P (as));
GO_IF_LEGITIMATE_ADDRESS (mode, addr, win);
return 0;
win:
return 1;
#else
- return targetm.legitimate_address_p (mode, addr, 1);
+ return targetm.addr_space.legitimate_address_p (mode, addr, 1, as);
#endif
}
\f
if (GET_MODE (x) != GET_MODE (y))
return 0;
+ /* MEMs refering to different address space are not equivalent. */
+ if (code == MEM && MEM_ADDR_SPACE (x) != MEM_ADDR_SPACE (y))
+ return 0;
+
switch (code)
{
case CONST_INT:
{
rtx base = NULL_RTX, offset = 0;
rtx addr = XEXP (x, 0);
-
+
if (GET_CODE (addr) == PRE_DEC || GET_CODE (addr) == PRE_INC
|| GET_CODE (addr) == POST_DEC || GET_CODE (addr) == POST_INC)
{
val.safe = REGNO (val.base) == STACK_POINTER_REGNUM;
return val;
}
-
+
if (GET_CODE (addr) == PRE_MODIFY || GET_CODE (addr) == POST_MODIFY)
{
if (GET_CODE (XEXP (addr, 1)) == PLUS
return val;
}
}
-
+
if (GET_CODE (addr) == CONST)
{
addr = XEXP (addr, 0);
offset = XEXP (addr, 1);
}
}
-
+
if (offset == 0)
{
base = addr;
offset = XEXP (offset, 0);
if (GET_CODE (offset) == PLUS)
{
- if (GET_CODE (XEXP (offset, 0)) == CONST_INT)
+ if (CONST_INT_P (XEXP (offset, 0)))
{
base = gen_rtx_PLUS (GET_MODE (base), base, XEXP (offset, 1));
offset = XEXP (offset, 0);
}
- else if (GET_CODE (XEXP (offset, 1)) == CONST_INT)
+ else if (CONST_INT_P (XEXP (offset, 1)))
{
base = gen_rtx_PLUS (GET_MODE (base), base, XEXP (offset, 0));
offset = XEXP (offset, 1);
offset = const0_rtx;
}
}
- else if (GET_CODE (offset) != CONST_INT)
+ else if (!CONST_INT_P (offset))
{
base = gen_rtx_PLUS (GET_MODE (base), base, offset);
offset = const0_rtx;
}
-
+
if (all_const && GET_CODE (base) == PLUS)
base = gen_rtx_CONST (GET_MODE (base), base);
-
- gcc_assert (GET_CODE (offset) == CONST_INT);
-
+
+ gcc_assert (CONST_INT_P (offset));
+
val.start = INTVAL (offset);
val.end = val.start + GET_MODE_SIZE (GET_MODE (x));
val.base = base;
}
break;
-
+
case REG:
val.reg_flag = 1;
val.start = true_regnum (x);
a register. */
enum reg_class preferred_class[MAX_RECOG_OPERANDS];
char pref_or_nothing[MAX_RECOG_OPERANDS];
- /* Nonzero for a MEM operand whose entire address needs a reload.
+ /* Nonzero for a MEM operand whose entire address needs a reload.
May be -1 to indicate the entire address may or may not need a reload. */
int address_reloaded[MAX_RECOG_OPERANDS];
/* Nonzero for an address operand that needs to be completely reloaded.
enum reload_usage { RELOAD_READ, RELOAD_READ_WRITE, RELOAD_WRITE } modified[MAX_RECOG_OPERANDS];
int no_input_reloads = 0, no_output_reloads = 0;
int n_alternatives;
- enum reg_class this_alternative[MAX_RECOG_OPERANDS];
+ reg_class_t this_alternative[MAX_RECOG_OPERANDS];
char this_alternative_match_win[MAX_RECOG_OPERANDS];
char this_alternative_win[MAX_RECOG_OPERANDS];
char this_alternative_offmemok[MAX_RECOG_OPERANDS];
char this_alternative_earlyclobber[MAX_RECOG_OPERANDS];
int this_alternative_matches[MAX_RECOG_OPERANDS];
int swapped;
- int goal_alternative[MAX_RECOG_OPERANDS];
+ reg_class_t goal_alternative[MAX_RECOG_OPERANDS];
int this_alternative_number;
int goal_alternative_number = 0;
int operand_reloadnum[MAX_RECOG_OPERANDS];
&& REGNO (SET_DEST (body)) < FIRST_PSEUDO_REGISTER
&& REG_P (SET_SRC (body))
&& REGNO (SET_SRC (body)) < FIRST_PSEUDO_REGISTER
- && REGISTER_MOVE_COST (GET_MODE (SET_SRC (body)),
+ && register_move_cost (GET_MODE (SET_SRC (body)),
REGNO_REG_CLASS (REGNO (SET_SRC (body))),
REGNO_REG_CLASS (REGNO (SET_DEST (body)))) == 2)
return 0;
&& REG_P (reg)
&& (GET_MODE_SIZE (GET_MODE (reg))
>= GET_MODE_SIZE (GET_MODE (op)))
- && reg_equiv_constant[REGNO (reg)] == 0)
+ && reg_equiv_constant (REGNO (reg)) == 0)
set_unique_reg_note (emit_insn_before (gen_rtx_USE (VOIDmode, reg),
insn),
- REG_EQUAL, reg_equiv_memory_loc[REGNO (reg)]);
+ REG_EQUAL, reg_equiv_memory_loc (REGNO (reg)));
substed_operand[i] = recog_data.operand[i] = op;
}
that we don't try to replace it in the insn in which it
is being set. */
int regno = REGNO (recog_data.operand[i]);
- if (reg_equiv_constant[regno] != 0
+ if (reg_equiv_constant (regno) != 0
&& (set == 0 || &SET_DEST (set) != recog_data.operand_loc[i]))
{
/* Record the existing mode so that the check if constants are
operand_mode[i] = GET_MODE (recog_data.operand[i]);
substed_operand[i] = recog_data.operand[i]
- = reg_equiv_constant[regno];
+ = reg_equiv_constant (regno);
}
- if (reg_equiv_memory_loc[regno] != 0
- && (reg_equiv_address[regno] != 0 || num_not_at_initial_offset))
+ if (reg_equiv_memory_loc (regno) != 0
+ && (reg_equiv_address (regno) != 0 || num_not_at_initial_offset))
/* We need not give a valid is_set_dest argument since the case
of a constant equivalence was checked above. */
substed_operand[i] = recog_data.operand[i]
&& REGNO (operand) >= FIRST_PSEUDO_REGISTER
&& reg_renumber[REGNO (operand)] < 0))
win = 1;
- if (CONST_POOL_OK_P (operand))
+ if (CONST_POOL_OK_P (operand_mode[i], operand))
badop = 0;
constmemok = 1;
break;
to override the handling of reg_equiv_address. */
&& !(REG_P (XEXP (operand, 0))
&& (ind_levels == 0
- || reg_equiv_address[REGNO (XEXP (operand, 0))] != 0)))
+ || reg_equiv_address (REGNO (XEXP (operand, 0))) != 0)))
win = 1;
break;
loading it into a register; hence it will be
offsettable, but we cannot say that reg_equiv_mem
is offsettable without checking. */
- && ((reg_equiv_mem[REGNO (operand)] != 0
- && offsettable_memref_p (reg_equiv_mem[REGNO (operand)]))
- || (reg_equiv_address[REGNO (operand)] != 0))))
+ && ((reg_equiv_mem (REGNO (operand)) != 0
+ && offsettable_memref_p (reg_equiv_mem (REGNO (operand))))
+ || (reg_equiv_address (REGNO (operand)) != 0))))
win = 1;
- if (CONST_POOL_OK_P (operand)
+ if (CONST_POOL_OK_P (operand_mode[i], operand)
|| MEM_P (operand))
badop = 0;
constmemok = 1;
break;
case 's':
- if (GET_CODE (operand) == CONST_INT
+ if (CONST_INT_P (operand)
|| (GET_CODE (operand) == CONST_DOUBLE
&& GET_MODE (operand) == VOIDmode))
break;
break;
case 'n':
- if (GET_CODE (operand) == CONST_INT
+ if (CONST_INT_P (operand)
|| (GET_CODE (operand) == CONST_DOUBLE
&& GET_MODE (operand) == VOIDmode))
win = 1;
case 'N':
case 'O':
case 'P':
- if (GET_CODE (operand) == CONST_INT
+ if (CONST_INT_P (operand)
&& CONST_OK_FOR_CONSTRAINT_P (INTVAL (operand), c, p))
win = 1;
break;
else if (REG_P (operand)
&& REGNO (operand) >= FIRST_PSEUDO_REGISTER
&& reg_renumber[REGNO (operand)] < 0
- && ((reg_equiv_mem[REGNO (operand)] != 0
- && EXTRA_CONSTRAINT_STR (reg_equiv_mem[REGNO (operand)], c, p))
- || (reg_equiv_address[REGNO (operand)] != 0)))
+ && ((reg_equiv_mem (REGNO (operand)) != 0
+ && EXTRA_CONSTRAINT_STR (reg_equiv_mem (REGNO (operand)), c, p))
+ || (reg_equiv_address (REGNO (operand)) != 0)))
win = 1;
/* If we didn't already win, we can reload
constants via force_const_mem, and other
MEMs by reloading the address like for 'o'. */
- if (CONST_POOL_OK_P (operand)
+ if (CONST_POOL_OK_P (operand_mode[i], operand)
|| MEM_P (operand))
badop = 0;
constmemok = 1;
/* If this operand could be handled with a reg,
and some reg is allowed, then this operand can be handled. */
- if (winreg && this_alternative[i] != NO_REGS)
+ if (winreg && this_alternative[i] != NO_REGS
+ && (win || !class_only_fixed_regs[this_alternative[i]]))
badop = 0;
/* Record which operands fit this alternative. */
an early reload pass. Note that the test here is
precisely the same as in the code below that calls
force_const_mem. */
- if (CONST_POOL_OK_P (operand)
- && ((PREFERRED_RELOAD_CLASS (operand, this_alternative[i])
+ if (CONST_POOL_OK_P (operand_mode[i], operand)
+ && ((targetm.preferred_reload_class (operand,
+ this_alternative[i])
== NO_REGS)
- || no_input_reloads)
- && operand_mode[i] != VOIDmode)
+ || no_input_reloads))
{
const_to_mem = 1;
if (this_alternative[i] != NO_REGS)
if (! CONSTANT_P (operand) && this_alternative[i] != NO_REGS)
{
- if (PREFERRED_RELOAD_CLASS (operand, this_alternative[i])
+ if (targetm.preferred_reload_class (operand, this_alternative[i])
== NO_REGS)
reject = 600;
-#ifdef PREFERRED_OUTPUT_RELOAD_CLASS
if (operand_type[i] == RELOAD_FOR_OUTPUT
- && (PREFERRED_OUTPUT_RELOAD_CLASS (operand,
- this_alternative[i])
+ && (targetm.preferred_output_reload_class (operand,
+ this_alternative[i])
== NO_REGS))
reject = 600;
-#endif
}
/* We prefer to reload pseudos over reloading other things,
&& this_alternative[i] != NO_REGS
&& GET_MODE_SIZE (operand_mode[i]) <= UNITS_PER_WORD
&& reg_class_size [(int) preferred_class[i]] > 0
- && ! SMALL_REGISTER_CLASS_P (preferred_class[i]))
+ && ! small_register_class_p (preferred_class[i]))
{
if (! reg_class_subset_p (this_alternative[i],
preferred_class[i]))
|| modified[j] != RELOAD_WRITE)
&& j != i
/* Ignore things like match_operator operands. */
- && *recog_data.constraints[j] != 0
+ && !recog_data.is_operator[j]
/* Don't count an input operand that is constrained to match
the early clobber operand. */
&& ! (this_alternative_matches[j] == i
{
/* If the output is in a non-empty few-regs class,
it's costly to reload it, so reload the input instead. */
- if (SMALL_REGISTER_CLASS_P (this_alternative[i])
+ if (small_register_class_p (this_alternative[i])
&& (REG_P (recog_data.operand[j])
|| GET_CODE (recog_data.operand[j]) == SUBREG))
{
/* If this alternative can be made to work by reloading,
and it needs less reloading than the others checked so far,
record it as the chosen goal for reloading. */
- if (! bad && best > losers)
+ if (! bad)
{
- for (i = 0; i < noperands; i++)
+ if (best > losers)
{
- goal_alternative[i] = this_alternative[i];
- goal_alternative_win[i] = this_alternative_win[i];
- goal_alternative_match_win[i] = this_alternative_match_win[i];
- goal_alternative_offmemok[i] = this_alternative_offmemok[i];
- goal_alternative_matches[i] = this_alternative_matches[i];
- goal_alternative_earlyclobber[i]
- = this_alternative_earlyclobber[i];
+ for (i = 0; i < noperands; i++)
+ {
+ goal_alternative[i] = this_alternative[i];
+ goal_alternative_win[i] = this_alternative_win[i];
+ goal_alternative_match_win[i]
+ = this_alternative_match_win[i];
+ goal_alternative_offmemok[i]
+ = this_alternative_offmemok[i];
+ goal_alternative_matches[i] = this_alternative_matches[i];
+ goal_alternative_earlyclobber[i]
+ = this_alternative_earlyclobber[i];
+ }
+ goal_alternative_swapped = swapped;
+ best = losers;
+ goal_alternative_number = this_alternative_number;
+ goal_earlyclobber = this_earlyclobber;
}
- goal_alternative_swapped = swapped;
- best = losers;
- goal_alternative_number = this_alternative_number;
- goal_earlyclobber = this_earlyclobber;
}
}
op = XEXP (op, 1);
}
- if (CONST_POOL_OK_P (op)
- && ((PREFERRED_RELOAD_CLASS (op,
- (enum reg_class) goal_alternative[i])
+ if (CONST_POOL_OK_P (mode, op)
+ && ((targetm.preferred_reload_class (op, goal_alternative[i])
== NO_REGS)
- || no_input_reloads)
- && mode != VOIDmode)
+ || no_input_reloads))
{
int this_address_reloaded;
rtx tem = force_const_mem (mode, op);
&& MEM_P (recog_data.operand[i]))
{
/* If the address to be reloaded is a VOIDmode constant,
- use Pmode as mode of the reload register, as would have
- been done by find_reloads_address. */
+ use the default address mode as mode of the reload register,
+ as would have been done by find_reloads_address. */
enum machine_mode address_mode;
address_mode = GET_MODE (XEXP (recog_data.operand[i], 0));
if (address_mode == VOIDmode)
- address_mode = Pmode;
+ {
+ addr_space_t as = MEM_ADDR_SPACE (recog_data.operand[i]);
+ address_mode = targetm.addr_space.address_mode (as);
+ }
operand_reloadnum[i]
= push_reload (XEXP (recog_data.operand[i], 0), NULL_RTX,
/* If this is only for an output, the optional reload would not
actually cause us to use a register now, just note that
something is stored here. */
- && ((enum reg_class) goal_alternative[i] != NO_REGS
+ && (goal_alternative[i] != NO_REGS
|| modified[i] == RELOAD_WRITE)
&& ! no_input_reloads
/* An optional output reload might allow to delete INSN later.
if ((MEM_P (operand)
|| (REG_P (operand)
&& REGNO (operand) >= FIRST_PSEUDO_REGISTER))
- && ((enum reg_class) goal_alternative[goal_alternative_matches[i]]
- != NO_REGS))
+ && (goal_alternative[goal_alternative_matches[i]] != NO_REGS))
operand_reloadnum[i] = operand_reloadnum[goal_alternative_matches[i]]
= push_reload (recog_data.operand[goal_alternative_matches[i]],
recog_data.operand[i],
/* If we detected error and replaced asm instruction by USE, forget about the
reloads. */
if (GET_CODE (PATTERN (insn)) == USE
- && GET_CODE (XEXP (PATTERN (insn), 0)) == CONST_INT)
+ && CONST_INT_P (XEXP (PATTERN (insn), 0)))
n_reloads = 0;
/* Perhaps an output reload can be combined with another
is null. */
static bool
-alternative_allows_const_pool_ref (rtx mem, const char *constraint, int altnum)
+alternative_allows_const_pool_ref (rtx mem ATTRIBUTE_UNUSED,
+ const char *constraint, int altnum)
{
int c;
{
/* This code is duplicated for speed in find_reloads. */
int regno = REGNO (x);
- if (reg_equiv_constant[regno] != 0 && !is_set_dest)
- x = reg_equiv_constant[regno];
+ if (reg_equiv_constant (regno) != 0 && !is_set_dest)
+ x = reg_equiv_constant (regno);
#if 0
/* This creates (subreg (mem...)) which would cause an unnecessary
reload of the mem. */
- else if (reg_equiv_mem[regno] != 0)
- x = reg_equiv_mem[regno];
+ else if (reg_equiv_mem (regno) != 0)
+ x = reg_equiv_mem (regno);
#endif
- else if (reg_equiv_memory_loc[regno]
- && (reg_equiv_address[regno] != 0 || num_not_at_initial_offset))
+ else if (reg_equiv_memory_loc (regno)
+ && (reg_equiv_address (regno) != 0 || num_not_at_initial_offset))
{
rtx mem = make_memloc (x, regno);
- if (reg_equiv_address[regno]
- || ! rtx_equal_p (mem, reg_equiv_mem[regno]))
+ if (reg_equiv_address (regno)
+ || ! rtx_equal_p (mem, reg_equiv_mem (regno)))
{
/* If this is not a toplevel operand, find_reloads doesn't see
this substitution. We have to emit a USE of the pseudo so
if (regno >= FIRST_PSEUDO_REGISTER
&& reg_renumber[regno] < 0
- && reg_equiv_constant[regno] != 0)
+ && reg_equiv_constant (regno) != 0)
{
tem =
- simplify_gen_subreg (GET_MODE (x), reg_equiv_constant[regno],
+ simplify_gen_subreg (GET_MODE (x), reg_equiv_constant (regno),
GET_MODE (SUBREG_REG (x)), SUBREG_BYTE (x));
gcc_assert (tem);
- if (CONSTANT_P (tem) && !LEGITIMATE_CONSTANT_P (tem))
+ if (CONSTANT_P (tem)
+ && !targetm.legitimate_constant_p (GET_MODE (x), tem))
{
tem = force_const_mem (GET_MODE (x), tem);
i = find_reloads_address (GET_MODE (tem), &tem, XEXP (tem, 0),
&& (GET_MODE_SIZE (GET_MODE (x))
<= GET_MODE_SIZE (GET_MODE (SUBREG_REG (x))))
#endif
- && (reg_equiv_address[regno] != 0
- || (reg_equiv_mem[regno] != 0
- && (! strict_memory_address_p (GET_MODE (x),
- XEXP (reg_equiv_mem[regno], 0))
- || ! offsettable_memref_p (reg_equiv_mem[regno])
+ && (reg_equiv_address (regno) != 0
+ || (reg_equiv_mem (regno) != 0
+ && (! strict_memory_address_addr_space_p
+ (GET_MODE (x), XEXP (reg_equiv_mem (regno), 0),
+ MEM_ADDR_SPACE (reg_equiv_mem (regno)))
+ || ! offsettable_memref_p (reg_equiv_mem (regno))
|| num_not_at_initial_offset))))
x = find_reloads_subreg_address (x, 1, opnum, type, ind_levels,
- insn);
+ insn, address_reloaded);
}
for (copied = 0, i = GET_RTX_LENGTH (code) - 1; i >= 0; i--)
/* We must rerun eliminate_regs, in case the elimination
offsets have changed. */
rtx tem
- = XEXP (eliminate_regs (reg_equiv_memory_loc[regno], VOIDmode, NULL_RTX),
+ = XEXP (eliminate_regs (reg_equiv_memory_loc (regno), VOIDmode, NULL_RTX),
0);
/* If TEM might contain a pseudo, we must copy it to avoid
if (rtx_varies_p (tem, 0))
tem = copy_rtx (tem);
- tem = replace_equiv_address_nv (reg_equiv_memory_loc[regno], tem);
+ tem = replace_equiv_address_nv (reg_equiv_memory_loc (regno), tem);
tem = adjust_address_nv (tem, GET_MODE (ad), 0);
/* Copy the result if it's still the same as the equivalence, to avoid
modifying it when we do the substitution for the reload. */
- if (tem == reg_equiv_memory_loc[regno])
+ if (tem == reg_equiv_memory_loc (regno))
tem = copy_rtx (tem);
return tem;
}
/* Returns true if AD could be turned into a valid memory reference
- to mode MODE by reloading the part pointed to by PART into a
- register. */
+ to mode MODE in address space AS by reloading the part pointed to
+ by PART into a register. */
static int
-maybe_memory_address_p (enum machine_mode mode, rtx ad, rtx *part)
+maybe_memory_address_addr_space_p (enum machine_mode mode, rtx ad,
+ addr_space_t as, rtx *part)
{
int retv;
rtx tem = *part;
rtx reg = gen_rtx_REG (GET_MODE (tem), max_reg_num ());
*part = reg;
- retv = memory_address_p (mode, ad);
+ retv = memory_address_addr_space_p (mode, ad, as);
*part = tem;
return retv;
rtx *loc, int opnum, enum reload_type type,
int ind_levels, rtx insn)
{
+ addr_space_t as = memrefloc? MEM_ADDR_SPACE (*memrefloc)
+ : ADDR_SPACE_GENERIC;
int regno;
int removed_and = 0;
int op_index;
{
regno = REGNO (ad);
- if (reg_equiv_constant[regno] != 0)
+ if (reg_equiv_constant (regno) != 0)
{
- find_reloads_address_part (reg_equiv_constant[regno], loc,
+ find_reloads_address_part (reg_equiv_constant (regno), loc,
base_reg_class (mode, MEM, SCRATCH),
GET_MODE (ad), opnum, type, ind_levels);
return 1;
}
- tem = reg_equiv_memory_loc[regno];
+ tem = reg_equiv_memory_loc (regno);
if (tem != 0)
{
- if (reg_equiv_address[regno] != 0 || num_not_at_initial_offset)
+ if (reg_equiv_address (regno) != 0 || num_not_at_initial_offset)
{
tem = make_memloc (ad, regno);
- if (! strict_memory_address_p (GET_MODE (tem), XEXP (tem, 0)))
+ if (! strict_memory_address_addr_space_p (GET_MODE (tem),
+ XEXP (tem, 0),
+ MEM_ADDR_SPACE (tem)))
{
rtx orig = tem;
address: only reg or reg+constant. */
if (ind_levels > 0
- && strict_memory_address_p (mode, tem)
+ && strict_memory_address_addr_space_p (mode, tem, as)
&& (REG_P (XEXP (tem, 0))
|| (GET_CODE (XEXP (tem, 0)) == PLUS
&& REG_P (XEXP (XEXP (tem, 0), 0))
in the final reload pass. */
if (replace_reloads
&& num_not_at_initial_offset
- && ! rtx_equal_p (tem, reg_equiv_mem[regno]))
+ && ! rtx_equal_p (tem, reg_equiv_mem (regno)))
{
*loc = tem;
/* We mark the USE with QImode so that we
return 1;
}
- if (strict_memory_address_p (mode, ad))
+ if (strict_memory_address_addr_space_p (mode, ad, as))
{
/* The address appears valid, so reloads are not needed.
But the address may contain an eliminable register.
/* But first quickly dispose of a common case. */
if (GET_CODE (ad) == PLUS
- && GET_CODE (XEXP (ad, 1)) == CONST_INT
+ && CONST_INT_P (XEXP (ad, 1))
&& REG_P (XEXP (ad, 0))
- && reg_equiv_constant[REGNO (XEXP (ad, 0))] == 0)
+ && reg_equiv_constant (REGNO (XEXP (ad, 0))) == 0)
return 0;
subst_reg_equivs_changed = 0;
return 0;
/* Check result for validity after substitution. */
- if (strict_memory_address_p (mode, ad))
+ if (strict_memory_address_addr_space_p (mode, ad, as))
return 0;
}
#ifdef LEGITIMIZE_RELOAD_ADDRESS
do
{
- if (memrefloc)
+ if (memrefloc && ADDR_SPACE_GENERIC_P (as))
{
LEGITIMIZE_RELOAD_ADDRESS (ad, GET_MODE (*memrefloc), opnum, type,
ind_levels, win);
|| ! (REG_P (XEXP (tem, 0))
|| (GET_CODE (XEXP (tem, 0)) == PLUS
&& REG_P (XEXP (XEXP (tem, 0), 0))
- && GET_CODE (XEXP (XEXP (tem, 0), 1)) == CONST_INT)))
+ && CONST_INT_P (XEXP (XEXP (tem, 0), 1)))))
{
/* Must use TEM here, not AD, since it is the one that will
have any subexpressions reloaded, if needed. */
else if (GET_CODE (ad) == PLUS
&& REG_P (XEXP (ad, 0))
&& REGNO (XEXP (ad, 0)) < FIRST_PSEUDO_REGISTER
- && GET_CODE (XEXP (ad, 1)) == CONST_INT
- && regno_ok_for_base_p (REGNO (XEXP (ad, 0)), mode, PLUS,
- CONST_INT))
+ && CONST_INT_P (XEXP (ad, 1))
+ && (regno_ok_for_base_p (REGNO (XEXP (ad, 0)), mode, PLUS,
+ CONST_INT)
+ /* Similarly, if we were to reload the base register and the
+ mem+offset address is still invalid, then we want to reload
+ the whole address, not just the base register. */
+ || ! maybe_memory_address_addr_space_p
+ (mode, ad, as, &(XEXP (ad, 0)))))
{
/* Unshare the MEM rtx so we can safely alter it. */
loc = &XEXP (*loc, 0);
}
- if (double_reg_address_ok)
+ if (double_reg_address_ok
+ && regno_ok_for_base_p (REGNO (XEXP (ad, 0)), mode,
+ PLUS, CONST_INT))
{
/* Unshare the sum as well. */
*loc = ad = copy_rtx (ad);
That will at least work. */
find_reloads_address_part (ad, loc,
base_reg_class (mode, MEM, SCRATCH),
- Pmode, opnum, type, ind_levels);
+ GET_MODE (ad), opnum, type, ind_levels);
}
return ! removed_and;
}
continue;
inner_code = GET_CODE (XEXP (ad, 0));
- if (!(GET_CODE (ad) == PLUS
- && GET_CODE (XEXP (ad, 1)) == CONST_INT
+ if (!(GET_CODE (ad) == PLUS
+ && CONST_INT_P (XEXP (ad, 1))
&& (inner_code == PLUS || inner_code == LO_SUM)))
continue;
if ((regno_ok_for_base_p (REGNO (operand), mode, inner_code,
GET_CODE (addend))
|| operand == frame_pointer_rtx
-#if FRAME_POINTER_REGNUM != HARD_FRAME_POINTER_REGNUM
+#if !HARD_FRAME_POINTER_IS_FRAME_POINTER
|| operand == hard_frame_pointer_rtx
#endif
#if FRAME_POINTER_REGNUM != ARG_POINTER_REGNUM
|| operand == arg_pointer_rtx
#endif
|| operand == stack_pointer_rtx)
- && ! maybe_memory_address_p (mode, ad,
- &XEXP (XEXP (ad, 0), 1 - op_index)))
+ && ! maybe_memory_address_addr_space_p
+ (mode, ad, as, &XEXP (XEXP (ad, 0), 1 - op_index)))
{
rtx offset_reg;
enum reg_class cls;
/* Form the adjusted address. */
if (GET_CODE (XEXP (ad, 0)) == PLUS)
- ad = gen_rtx_PLUS (GET_MODE (ad),
- op_index == 0 ? offset_reg : addend,
+ ad = gen_rtx_PLUS (GET_MODE (ad),
+ op_index == 0 ? offset_reg : addend,
op_index == 0 ? addend : offset_reg);
else
- ad = gen_rtx_LO_SUM (GET_MODE (ad),
- op_index == 0 ? offset_reg : addend,
+ ad = gen_rtx_LO_SUM (GET_MODE (ad),
+ op_index == 0 ? offset_reg : addend,
op_index == 0 ? addend : offset_reg);
*loc = ad;
cls = base_reg_class (mode, MEM, GET_CODE (addend));
- find_reloads_address_part (XEXP (ad, op_index),
+ find_reloads_address_part (XEXP (ad, op_index),
&XEXP (ad, op_index), cls,
GET_MODE (ad), opnum, type, ind_levels);
find_reloads_address_1 (mode,
tem = ad;
if (GET_CODE (ad) == PLUS)
tem = subst_indexed_address (ad);
- if (tem != ad && strict_memory_address_p (mode, tem))
+ if (tem != ad && strict_memory_address_addr_space_p (mode, tem, as))
{
/* Ok, we win that way. Replace any additional eliminable
registers. */
/* Make sure that didn't make the address invalid again. */
- if (! subst_reg_equivs_changed || strict_memory_address_p (mode, tem))
+ if (! subst_reg_equivs_changed
+ || strict_memory_address_addr_space_p (mode, tem, as))
{
*loc = tem;
return 0;
/* If constants aren't valid addresses, reload the constant address
into a register. */
- if (CONSTANT_P (ad) && ! strict_memory_address_p (mode, ad))
+ if (CONSTANT_P (ad) && ! strict_memory_address_addr_space_p (mode, ad, as))
{
+ enum machine_mode address_mode = GET_MODE (ad);
+ if (address_mode == VOIDmode)
+ address_mode = targetm.addr_space.address_mode (as);
+
/* If AD is an address in the constant pool, the MEM rtx may be shared.
Unshare it so we can safely alter it. */
if (memrefloc && GET_CODE (ad) == SYMBOL_REF
}
find_reloads_address_part (ad, loc, base_reg_class (mode, MEM, SCRATCH),
- Pmode, opnum, type, ind_levels);
+ address_mode, opnum, type, ind_levels);
return ! removed_and;
}
{
int regno = REGNO (ad);
- if (reg_equiv_constant[regno] != 0)
+ if (reg_equiv_constant (regno) != 0)
{
subst_reg_equivs_changed = 1;
- return reg_equiv_constant[regno];
+ return reg_equiv_constant (regno);
}
- if (reg_equiv_memory_loc[regno] && num_not_at_initial_offset)
+ if (reg_equiv_memory_loc (regno) && num_not_at_initial_offset)
{
rtx mem = make_memloc (ad, regno);
- if (! rtx_equal_p (mem, reg_equiv_mem[regno]))
+ if (! rtx_equal_p (mem, reg_equiv_mem (regno)))
{
subst_reg_equivs_changed = 1;
/* We mark the USE with QImode so that we recognize it
case PLUS:
/* Quickly dispose of a common case. */
if (XEXP (ad, 0) == frame_pointer_rtx
- && GET_CODE (XEXP (ad, 1)) == CONST_INT)
+ && CONST_INT_P (XEXP (ad, 1)))
return ad;
break;
This routine assumes both inputs are already in canonical form. */
rtx
-form_sum (rtx x, rtx y)
+form_sum (enum machine_mode mode, rtx x, rtx y)
{
rtx tem;
- enum machine_mode mode = GET_MODE (x);
-
- if (mode == VOIDmode)
- mode = GET_MODE (y);
- if (mode == VOIDmode)
- mode = Pmode;
+ gcc_assert (GET_MODE (x) == mode || GET_MODE (x) == VOIDmode);
+ gcc_assert (GET_MODE (y) == mode || GET_MODE (y) == VOIDmode);
- if (GET_CODE (x) == CONST_INT)
+ if (CONST_INT_P (x))
return plus_constant (y, INTVAL (x));
- else if (GET_CODE (y) == CONST_INT)
+ else if (CONST_INT_P (y))
return plus_constant (x, INTVAL (y));
else if (CONSTANT_P (x))
tem = x, x = y, y = tem;
if (GET_CODE (x) == PLUS && CONSTANT_P (XEXP (x, 1)))
- return form_sum (XEXP (x, 0), form_sum (XEXP (x, 1), y));
+ return form_sum (mode, XEXP (x, 0), form_sum (mode, XEXP (x, 1), y));
/* Note that if the operands of Y are specified in the opposite
order in the recursive calls below, infinite recursion will occur. */
if (GET_CODE (y) == PLUS && CONSTANT_P (XEXP (y, 1)))
- return form_sum (form_sum (x, XEXP (y, 0)), XEXP (y, 1));
+ return form_sum (mode, form_sum (mode, x, XEXP (y, 0)), XEXP (y, 1));
/* If both constant, encapsulate sum. Otherwise, just form sum. A
constant will have been placed second. */
if (REG_P (op0)
&& (regno = REGNO (op0)) >= FIRST_PSEUDO_REGISTER
&& reg_renumber[regno] < 0
- && reg_equiv_constant[regno] != 0)
- op0 = reg_equiv_constant[regno];
+ && reg_equiv_constant (regno) != 0)
+ op0 = reg_equiv_constant (regno);
else if (REG_P (op1)
&& (regno = REGNO (op1)) >= FIRST_PSEUDO_REGISTER
&& reg_renumber[regno] < 0
- && reg_equiv_constant[regno] != 0)
- op1 = reg_equiv_constant[regno];
+ && reg_equiv_constant (regno) != 0)
+ op1 = reg_equiv_constant (regno);
else if (GET_CODE (op0) == PLUS
&& (tem = subst_indexed_address (op0)) != op0)
op0 = tem;
/* Compute the sum. */
if (op2 != 0)
- op1 = form_sum (op1, op2);
+ op1 = form_sum (GET_MODE (addr), op1, op2);
if (op1 != 0)
- op0 = form_sum (op0, op1);
+ op0 = form_sum (GET_MODE (addr), op0, op1);
return op0;
}
#define REG_OK_FOR_CONTEXT(CONTEXT, REGNO, MODE, OUTER, INDEX) \
((CONTEXT) == 0 \
? regno_ok_for_base_p (REGNO, MODE, OUTER, INDEX) \
- : REGNO_OK_FOR_INDEX_P (REGNO))
+ : REGNO_OK_FOR_INDEX_P (REGNO))
enum reg_class context_reg_class;
RTX_CODE code = GET_CODE (x);
/* A register that is incremented cannot be constant! */
gcc_assert (regno < FIRST_PSEUDO_REGISTER
- || reg_equiv_constant[regno] == 0);
+ || reg_equiv_constant (regno) == 0);
/* Handle a register that is equivalent to a memory location
which cannot be addressed directly. */
- if (reg_equiv_memory_loc[regno] != 0
- && (reg_equiv_address[regno] != 0
+ if (reg_equiv_memory_loc (regno) != 0
+ && (reg_equiv_address (regno) != 0
|| num_not_at_initial_offset))
{
rtx tem = make_memloc (XEXP (x, 0), regno);
- if (reg_equiv_address[regno]
- || ! rtx_equal_p (tem, reg_equiv_mem[regno]))
+ if (reg_equiv_address (regno)
+ || ! rtx_equal_p (tem, reg_equiv_mem (regno)))
{
rtx orig = tem;
/* A register that is incremented cannot be constant! */
gcc_assert (regno < FIRST_PSEUDO_REGISTER
- || reg_equiv_constant[regno] == 0);
+ || reg_equiv_constant (regno) == 0);
/* Handle a register that is equivalent to a memory location
which cannot be addressed directly. */
- if (reg_equiv_memory_loc[regno] != 0
- && (reg_equiv_address[regno] != 0 || num_not_at_initial_offset))
+ if (reg_equiv_memory_loc (regno) != 0
+ && (reg_equiv_address (regno) != 0 || num_not_at_initial_offset))
{
rtx tem = make_memloc (XEXP (x, 0), regno);
- if (reg_equiv_address[regno]
- || ! rtx_equal_p (tem, reg_equiv_mem[regno]))
+ if (reg_equiv_address (regno)
+ || ! rtx_equal_p (tem, reg_equiv_mem (regno)))
{
rtx orig = tem;
Also don't do this if we can probably update x directly. */
rtx equiv = (MEM_P (XEXP (x, 0))
? XEXP (x, 0)
- : reg_equiv_mem[regno]);
- int icode = (int) optab_handler (add_optab, Pmode)->insn_code;
+ : reg_equiv_mem (regno));
+ enum insn_code icode = optab_handler (add_optab, GET_MODE (x));
if (insn && NONJUMP_INSN_P (insn) && equiv
&& memory_operand (equiv, GET_MODE (equiv))
#ifdef HAVE_cc0
&& ! sets_cc0_p (PATTERN (insn))
#endif
&& ! (icode != CODE_FOR_nothing
- && ((*insn_data[icode].operand[0].predicate)
- (equiv, Pmode))
- && ((*insn_data[icode].operand[1].predicate)
- (equiv, Pmode))))
+ && insn_operand_matches (icode, 0, equiv)
+ && insn_operand_matches (icode, 1, equiv)))
{
/* We use the original pseudo for loc, so that
emit_reload_insns() knows which pseudo this
{
int regno = REGNO (x);
- if (reg_equiv_constant[regno] != 0)
+ if (reg_equiv_constant (regno) != 0)
{
- find_reloads_address_part (reg_equiv_constant[regno], loc,
+ find_reloads_address_part (reg_equiv_constant (regno), loc,
context_reg_class,
GET_MODE (x), opnum, type, ind_levels);
return 1;
#if 0 /* This might screw code in reload1.c to delete prior output-reload
that feeds this insn. */
- if (reg_equiv_mem[regno] != 0)
+ if (reg_equiv_mem (regno) != 0)
{
- push_reload (reg_equiv_mem[regno], NULL_RTX, loc, (rtx*) 0,
+ push_reload (reg_equiv_mem (regno), NULL_RTX, loc, (rtx*) 0,
context_reg_class,
GET_MODE (x), VOIDmode, 0, 0, opnum, type);
return 1;
}
#endif
- if (reg_equiv_memory_loc[regno]
- && (reg_equiv_address[regno] != 0 || num_not_at_initial_offset))
+ if (reg_equiv_memory_loc (regno)
+ && (reg_equiv_address (regno) != 0 || num_not_at_initial_offset))
{
rtx tem = make_memloc (x, regno);
- if (reg_equiv_address[regno] != 0
- || ! rtx_equal_p (tem, reg_equiv_mem[regno]))
+ if (reg_equiv_address (regno) != 0
+ || ! rtx_equal_p (tem, reg_equiv_mem (regno)))
{
x = tem;
find_reloads_address (GET_MODE (x), &x, XEXP (x, 0),
if ((unsigned) CLASS_MAX_NREGS (rclass, GET_MODE (SUBREG_REG (x)))
> reg_class_size[rclass])
{
- x = find_reloads_subreg_address (x, 0, opnum,
+ x = find_reloads_subreg_address (x, 0, opnum,
ADDR_TYPE (type),
- ind_levels, insn);
+ ind_levels, insn, NULL);
push_reload (x, NULL_RTX, loc, (rtx*) 0, rclass,
GET_MODE (x), VOIDmode, 0, 0, opnum, type);
return 1;
enum reload_type type, int ind_levels)
{
if (CONSTANT_P (x)
- && (! LEGITIMATE_CONSTANT_P (x)
- || PREFERRED_RELOAD_CLASS (x, rclass) == NO_REGS))
+ && (!targetm.legitimate_constant_p (mode, x)
+ || targetm.preferred_reload_class (x, rclass) == NO_REGS))
{
x = force_const_mem (mode, x);
find_reloads_address (mode, &x, XEXP (x, 0), &XEXP (x, 0),
else if (GET_CODE (x) == PLUS
&& CONSTANT_P (XEXP (x, 1))
- && (! LEGITIMATE_CONSTANT_P (XEXP (x, 1))
- || PREFERRED_RELOAD_CLASS (XEXP (x, 1), rclass) == NO_REGS))
+ && (!targetm.legitimate_constant_p (GET_MODE (x), XEXP (x, 1))
+ || targetm.preferred_reload_class (XEXP (x, 1), rclass)
+ == NO_REGS))
{
rtx tem;
static rtx
find_reloads_subreg_address (rtx x, int force_replace, int opnum,
- enum reload_type type, int ind_levels, rtx insn)
+ enum reload_type type, int ind_levels, rtx insn,
+ int *address_reloaded)
{
int regno = REGNO (SUBREG_REG (x));
+ int reloaded = 0;
- if (reg_equiv_memory_loc[regno])
+ if (reg_equiv_memory_loc (regno))
{
/* If the address is not directly addressable, or if the address is not
offsettable, then it must be replaced. */
if (! force_replace
- && (reg_equiv_address[regno]
- || ! offsettable_memref_p (reg_equiv_mem[regno])))
+ && (reg_equiv_address (regno)
+ || ! offsettable_memref_p (reg_equiv_mem (regno))))
force_replace = 1;
if (force_replace || num_not_at_initial_offset)
/* If the address changes because of register elimination, then
it must be replaced. */
if (force_replace
- || ! rtx_equal_p (tem, reg_equiv_mem[regno]))
+ || ! rtx_equal_p (tem, reg_equiv_mem (regno)))
{
unsigned outer_size = GET_MODE_SIZE (GET_MODE (x));
unsigned inner_size = GET_MODE_SIZE (GET_MODE (SUBREG_REG (x)));
int offset;
rtx orig = tem;
- int reloaded;
/* For big-endian paradoxical subregs, SUBREG_BYTE does not
hold the correct (negative) byte offset. */
PUT_MODE (tem, GET_MODE (x));
if (MEM_OFFSET (tem))
set_mem_offset (tem, plus_constant (MEM_OFFSET (tem), offset));
+ if (MEM_SIZE (tem)
+ && INTVAL (MEM_SIZE (tem)) != (HOST_WIDE_INT) outer_size)
+ set_mem_size (tem, GEN_INT (outer_size));
/* If this was a paradoxical subreg that we replaced, the
resulting memory must be sufficiently aligned to allow
base = XEXP (tem, 0);
if (GET_CODE (base) == PLUS)
{
- if (GET_CODE (XEXP (base, 1)) == CONST_INT
+ if (CONST_INT_P (XEXP (base, 1))
&& INTVAL (XEXP (base, 1)) % outer_size != 0)
return x;
base = XEXP (base, 0);
/* For some processors an address may be valid in the
original mode but not in a smaller mode. For
example, ARM accepts a scaled index register in
- SImode but not in HImode. Similarly, the address may
- have been valid before the subreg offset was added,
- but not afterwards. find_reloads_address
- assumes that we pass it a valid address, and doesn't
- force a reload. This will probably be fine if
- find_reloads_address finds some reloads. But if it
- doesn't find any, then we may have just converted a
- valid address into an invalid one. Check for that
- here. */
+ SImode but not in HImode. Note that this is only
+ a problem if the address in reg_equiv_mem is already
+ invalid in the new mode; other cases would be fixed
+ by find_reloads_address as usual.
+
+ ??? We attempt to handle such cases here by doing an
+ additional reload of the full address after the
+ usual processing by find_reloads_address. Note that
+ this may not work in the general case, but it seems
+ to cover the cases where this situation currently
+ occurs. A more general fix might be to reload the
+ *value* instead of the address, but this would not
+ be expected by the callers of this routine as-is.
+
+ If find_reloads_address already completed replaced
+ the address, there is nothing further to do. */
if (reloaded == 0
- && !strict_memory_address_p (GET_MODE (tem),
- XEXP (tem, 0)))
- push_reload (XEXP (tem, 0), NULL_RTX, &XEXP (tem, 0), (rtx*) 0,
- base_reg_class (GET_MODE (tem), MEM, SCRATCH),
- GET_MODE (XEXP (tem, 0)), VOIDmode, 0, 0,
- opnum, type);
-
+ && reg_equiv_mem (regno) != 0
+ && !strict_memory_address_addr_space_p
+ (GET_MODE (x), XEXP (reg_equiv_mem (regno), 0),
+ MEM_ADDR_SPACE (reg_equiv_mem (regno))))
+ {
+ push_reload (XEXP (tem, 0), NULL_RTX, &XEXP (tem, 0), (rtx*) 0,
+ base_reg_class (GET_MODE (tem), MEM, SCRATCH),
+ GET_MODE (XEXP (tem, 0)), VOIDmode, 0, 0,
+ opnum, type);
+ reloaded = 1;
+ }
/* If this is not a toplevel operand, find_reloads doesn't see
this substitution. We have to emit a USE of the pseudo so
that delete_output_reload can see it. */
}
}
}
+ if (reloaded && address_reloaded)
+ *address_reloaded = 1;
+
return x;
}
\f
for (check_regno = 0; check_regno < max_regno; check_regno++)
{
#define CHECK_MODF(ARRAY) \
- gcc_assert (!ARRAY[check_regno] \
+ gcc_assert (!VEC_index (reg_equivs_t, reg_equivs, check_regno).ARRAY \
|| !loc_mentioned_in_p (r->where, \
- ARRAY[check_regno]))
+ VEC_index (reg_equivs_t, reg_equivs, check_regno).ARRAY))
- CHECK_MODF (reg_equiv_constant);
- CHECK_MODF (reg_equiv_memory_loc);
- CHECK_MODF (reg_equiv_address);
- CHECK_MODF (reg_equiv_mem);
+ CHECK_MODF (equiv_constant);
+ CHECK_MODF (equiv_memory_loc);
+ CHECK_MODF (equiv_address);
+ CHECK_MODF (equiv_mem);
#undef CHECK_MODF
}
#endif /* DEBUG_RELOAD */
X must therefore either be a constant or be in memory. */
if (r >= FIRST_PSEUDO_REGISTER)
{
- if (reg_equiv_memory_loc[r])
+ if (reg_equiv_memory_loc (r))
return refers_to_regno_for_reload_p (regno, endregno,
- reg_equiv_memory_loc[r],
+ reg_equiv_memory_loc (r),
(rtx*) 0);
- gcc_assert (reg_equiv_constant[r] || reg_equiv_invariant[r]);
+ gcc_assert (reg_equiv_constant (r) || reg_equiv_invariant (r));
return 0;
}
/* If either argument is a constant, then modifying X can not affect IN. */
if (CONSTANT_P (x) || CONSTANT_P (in))
return 0;
- else if (GET_CODE (x) == SUBREG && GET_CODE (SUBREG_REG (x)) == MEM)
+ else if (GET_CODE (x) == SUBREG && MEM_P (SUBREG_REG (x)))
return refers_to_mem_for_reload_p (in);
else if (GET_CODE (x) == SUBREG)
{
if (regno >= FIRST_PSEUDO_REGISTER)
{
- if (reg_equiv_memory_loc[regno])
+ if (reg_equiv_memory_loc (regno))
return refers_to_mem_for_reload_p (in);
- gcc_assert (reg_equiv_constant[regno]);
+ gcc_assert (reg_equiv_constant (regno));
return 0;
}
else if (GET_CODE (x) == SCRATCH || GET_CODE (x) == PC
|| GET_CODE (x) == CC0)
return reg_mentioned_p (x, in);
- else
+ else
{
gcc_assert (GET_CODE (x) == PLUS);
if (REG_P (x))
return (REGNO (x) >= FIRST_PSEUDO_REGISTER
- && reg_equiv_memory_loc[REGNO (x)]);
+ && reg_equiv_memory_loc (REGNO (x)));
fmt = GET_RTX_FORMAT (GET_CODE (x));
for (i = GET_RTX_LENGTH (GET_CODE (x)) - 1; i >= 0; i--)
while (1)
{
p = PREV_INSN (p);
+ if (p && DEBUG_INSN_P (p))
+ continue;
num++;
if (p == 0 || LABEL_P (p)
|| num > PARAM_VALUE (PARAM_MAX_RELOAD_SEARCH_INSNS))
|| (REG_P (SET_DEST (pat))
&& GET_CODE (XEXP (tem, 0)) == CONST_DOUBLE
&& SCALAR_FLOAT_MODE_P (GET_MODE (XEXP (tem, 0)))
- && GET_CODE (goal) == CONST_INT
+ && CONST_INT_P (goal)
&& 0 != (goaltry
= operand_subword (XEXP (tem, 0), 0, 0,
VOIDmode))
&& REG_P (SET_DEST (pat))
&& GET_CODE (XEXP (tem, 0)) == CONST_DOUBLE
&& SCALAR_FLOAT_MODE_P (GET_MODE (XEXP (tem, 0)))
- && GET_CODE (goal) == CONST_INT
+ && CONST_INT_P (goal)
&& 0 != (goaltry = operand_subword (XEXP (tem, 0), 1, 0,
VOIDmode))
&& rtx_equal_p (goal, goaltry)
&& ! push_operand (dest, GET_MODE (dest)))
return 0;
else if (MEM_P (dest) && regno >= FIRST_PSEUDO_REGISTER
- && reg_equiv_memory_loc[regno] != 0)
+ && reg_equiv_memory_loc (regno) != 0)
return 0;
else if (need_stable_sp && push_operand (dest, GET_MODE (dest)))
return 0;
&& ! push_operand (dest, GET_MODE (dest)))
return 0;
else if (MEM_P (dest) && regno >= FIRST_PSEUDO_REGISTER
- && reg_equiv_memory_loc[regno] != 0)
+ && reg_equiv_memory_loc (regno) != 0)
return 0;
else if (need_stable_sp
&& push_operand (dest, GET_MODE (dest)))
&& GET_CODE (XEXP (addr, 1)) == PLUS
&& XEXP (addr, 0) == XEXP (XEXP (addr, 1), 0)
&& XEXP (addr, 0) == inced
- && GET_CODE (XEXP (XEXP (addr, 1), 1)) == CONST_INT)
+ && CONST_INT_P (XEXP (XEXP (addr, 1), 1)))
{
i = INTVAL (XEXP (XEXP (addr, 1), 1));
return i < 0 ? -i : i;
REG_INC note in insn INSN. REGNO must refer to a hard register. */
#ifdef AUTO_INC_DEC
-static int
+static int
reg_inc_found_and_valid_p (unsigned int regno, unsigned int endregno,
rtx insn)
{
if (! INSN_P (insn))
return 0;
-
+
for (link = REG_NOTES (insn); link; link = XEXP (link, 1))
if (REG_NOTE_KIND (link) == REG_INC)
{
unsigned int test = (int) REGNO (XEXP (link, 0));
if (test >= regno && test < endregno)
- return 1;
+ return 1;
}
return 0;
}
#define reg_inc_found_and_valid_p(regno,endregno,insn) 0
-#endif
+#endif
/* Return 1 if register REGNO is the subject of a clobber in insn INSN.
If SETS is 1, also consider SETs. If SETS is 2, enable checking
}
if (sets == 2 && reg_inc_found_and_valid_p (regno, endregno, insn))
- return 1;
-
+ return 1;
+
if (GET_CODE (PATTERN (insn)) == PARALLEL)
{
int i = XVECLEN (PATTERN (insn), 0) - 1;
}
if (sets == 2
&& reg_inc_found_and_valid_p (regno, endregno, elt))
- return 1;
+ return 1;
}
}
/* These functions are used to print the variables set by 'find_reloads' */
-void
+DEBUG_FUNCTION void
debug_reload_to_stream (FILE *f)
{
int r;
}
}
-void
+DEBUG_FUNCTION void
debug_reload (void)
{
debug_reload_to_stream (stderr);
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