#include "config.h"
#include "system.h"
#include "rtl.h"
#include "tree.h"
#include "regs.h"
#include "hard-reg-set.h"
#include "real.h"
#include "insn-config.h"
#include "conditions.h"
#include "output.h"
#include "insn-attr.h"
#include "flags.h"
#include "recog.h"
#include "expr.h"
#include "optabs.h"
#include "function.h"
#include "obstack.h"
#include "toplev.h"
#include "tm_p.h"
#include "target.h"
#include "target-def.h"
#define REG_SAVE_BYTES (4 * regs_ever_live[2] \
+ 4 * regs_ever_live[3] \
+ 4 * regs_ever_live[6] \
+ 4 * regs_ever_live[7] \
+ 16 * (regs_ever_live[14] || regs_ever_live[15] \
|| regs_ever_live[16] || regs_ever_live[17]))
#undef TARGET_ASM_ALIGNED_HI_OP
#define TARGET_ASM_ALIGNED_HI_OP "\t.hword\t"
struct gcc_target targetm = TARGET_INITIALIZER;
void
asm_file_start (file)
FILE *file;
{
fprintf (file, "#\tGCC For the Matsushita MN10300\n");
if (optimize)
fprintf (file, "# -O%d\n", optimize);
else
fprintf (file, "\n\n");
if (TARGET_AM33)
fprintf (file, "\t.am33\n");
output_file_directive (file, main_input_filename);
}
void
print_operand (file, x, code)
FILE *file;
rtx x;
int code;
{
switch (code)
{
case 'b':
case 'B':
switch (code == 'b' ? GET_CODE (x) : reverse_condition (GET_CODE (x)))
{
case NE:
fprintf (file, "ne");
break;
case EQ:
fprintf (file, "eq");
break;
case GE:
fprintf (file, "ge");
break;
case GT:
fprintf (file, "gt");
break;
case LE:
fprintf (file, "le");
break;
case LT:
fprintf (file, "lt");
break;
case GEU:
fprintf (file, "cc");
break;
case GTU:
fprintf (file, "hi");
break;
case LEU:
fprintf (file, "ls");
break;
case LTU:
fprintf (file, "cs");
break;
default:
abort ();
}
break;
case 'C':
if (GET_CODE (x) == REG)
{
fputc ('(', file);
print_operand (file, x, 0);
fputc (')', file);
}
else
print_operand (file, x, 0);
break;
case 'L':
switch (GET_CODE (x))
{
case MEM:
fputc ('(', file);
output_address (XEXP (x, 0));
fputc (')', file);
break;
case REG:
fprintf (file, "%s", reg_names[REGNO (x)]);
break;
case SUBREG:
fprintf (file, "%s", reg_names[subreg_regno (x)]);
break;
case CONST_DOUBLE:
{
long val[2];
REAL_VALUE_TYPE rv;
switch (GET_MODE (x))
{
case DFmode:
REAL_VALUE_FROM_CONST_DOUBLE (rv, x);
REAL_VALUE_TO_TARGET_DOUBLE (rv, val);
fprintf (file, "0x%lx", val[0]);
break;;
case SFmode:
REAL_VALUE_FROM_CONST_DOUBLE (rv, x);
REAL_VALUE_TO_TARGET_SINGLE (rv, val[0]);
fprintf (file, "0x%lx", val[0]);
break;;
case VOIDmode:
case DImode:
print_operand_address (file,
GEN_INT (CONST_DOUBLE_LOW (x)));
break;
default:
break;
}
break;
}
case CONST_INT:
{
rtx low, high;
split_double (x, &low, &high);
fprintf (file, "%ld", (long)INTVAL (low));
break;
}
default:
abort ();
}
break;
case 'H':
switch (GET_CODE (x))
{
case MEM:
fputc ('(', file);
x = adjust_address (x, SImode, 4);
output_address (XEXP (x, 0));
fputc (')', file);
break;
case REG:
fprintf (file, "%s", reg_names[REGNO (x) + 1]);
break;
case SUBREG:
fprintf (file, "%s", reg_names[subreg_regno (x) + 1]);
break;
case CONST_DOUBLE:
{
long val[2];
REAL_VALUE_TYPE rv;
switch (GET_MODE (x))
{
case DFmode:
REAL_VALUE_FROM_CONST_DOUBLE (rv, x);
REAL_VALUE_TO_TARGET_DOUBLE (rv, val);
fprintf (file, "0x%lx", val[1]);
break;;
case SFmode:
abort ();
case VOIDmode:
case DImode:
print_operand_address (file,
GEN_INT (CONST_DOUBLE_HIGH (x)));
break;
default:
break;
}
break;
}
case CONST_INT:
{
rtx low, high;
split_double (x, &low, &high);
fprintf (file, "%ld", (long)INTVAL (high));
break;
}
default:
abort ();
}
break;
case 'A':
fputc ('(', file);
if (GET_CODE (XEXP (x, 0)) == REG)
output_address (gen_rtx_PLUS (SImode, XEXP (x, 0), GEN_INT (0)));
else
output_address (XEXP (x, 0));
fputc (')', file);
break;
case 'N':
output_address (GEN_INT ((~INTVAL (x)) & 0xff));
break;
case 'S':
if (GET_CODE (x) == CONST_INT)
{
fprintf (file, "%d", INTVAL (x) & 0x1f);
break;
}
default:
switch (GET_CODE (x))
{
case MEM:
fputc ('(', file);
output_address (XEXP (x, 0));
fputc (')', file);
break;
case PLUS:
output_address (x);
break;
case REG:
fprintf (file, "%s", reg_names[REGNO (x)]);
break;
case SUBREG:
fprintf (file, "%s", reg_names[subreg_regno (x)]);
break;
case CONST_DOUBLE:
{
unsigned long val;
REAL_VALUE_TYPE rv;
REAL_VALUE_FROM_CONST_DOUBLE (rv, x);
REAL_VALUE_TO_TARGET_SINGLE (rv, val);
fprintf (file, "0x%lx", val);
break;
}
case CONST_INT:
case SYMBOL_REF:
case CONST:
case LABEL_REF:
case CODE_LABEL:
print_operand_address (file, x);
break;
default:
abort ();
}
break;
}
}
void
print_operand_address (file, addr)
FILE *file;
rtx addr;
{
switch (GET_CODE (addr))
{
case POST_INC:
print_operand_address (file, XEXP (addr, 0));
fputc ('+', file);
break;
case REG:
print_operand (file, addr, 0);
break;
case PLUS:
{
rtx base, index;
if (REG_P (XEXP (addr, 0))
&& REG_OK_FOR_BASE_P (XEXP (addr, 0)))
base = XEXP (addr, 0), index = XEXP (addr, 1);
else if (REG_P (XEXP (addr, 1))
&& REG_OK_FOR_BASE_P (XEXP (addr, 1)))
base = XEXP (addr, 1), index = XEXP (addr, 0);
else
abort ();
print_operand (file, index, 0);
fputc (',', file);
print_operand (file, base, 0);;
break;
}
case SYMBOL_REF:
output_addr_const (file, addr);
break;
default:
output_addr_const (file, addr);
break;
}
}
void
mn10300_print_reg_list (file, mask)
FILE *file;
int mask;
{
int need_comma;
int i;
need_comma = 0;
fputc ('[', file);
for (i = 0; i < FIRST_EXTENDED_REGNUM; i++)
if ((mask & (1 << i)) != 0)
{
if (need_comma)
fputc (',', file);
fputs (reg_names [i], file);
need_comma = 1;
}
if ((mask & 0x3c000) != 0)
{
if ((mask & 0x3c000) != 0x3c000)
abort();
if (need_comma)
fputc (',', file);
fputs ("exreg1", file);
need_comma = 1;
}
fputc (']', file);
}
int
can_use_return_insn ()
{
int size = get_frame_size () + current_function_outgoing_args_size;
size += current_function_outgoing_args_size ? 4 : 0;
return (reload_completed
&& size == 0
&& !regs_ever_live[2]
&& !regs_ever_live[3]
&& !regs_ever_live[6]
&& !regs_ever_live[7]
&& !regs_ever_live[14]
&& !regs_ever_live[15]
&& !regs_ever_live[16]
&& !regs_ever_live[17]
&& !frame_pointer_needed);
}
int
mn10300_get_live_callee_saved_regs ()
{
int mask;
int i;
mask = 0;
for (i = 0; i < FIRST_PSEUDO_REGISTER; i++)
if (regs_ever_live[i] && ! call_used_regs[i])
mask |= (1 << i);
if ((mask & 0x3c000) != 0)
mask |= 0x3c000;
return mask;
}
void
mn10300_gen_multiple_store (mask)
int mask;
{
if (mask != 0)
{
int i;
int count;
rtx par;
int pari;
count = 0;
for (i = 0; i < FIRST_PSEUDO_REGISTER; i++)
if ((mask & (1 << i)) != 0)
count += 1;
par = gen_rtx_PARALLEL (VOIDmode, rtvec_alloc (count + 1));
XVECEXP (par, 0, 0)
= gen_rtx_SET (SImode,
stack_pointer_rtx,
gen_rtx_PLUS (SImode,
stack_pointer_rtx,
GEN_INT (-count * 4)));
pari = 1;
for (i = FIRST_PSEUDO_REGISTER - 1; i >= 0; i--)
if ((mask & (1 << i)) != 0)
{
rtx address = gen_rtx_PLUS (SImode,
stack_pointer_rtx,
GEN_INT (-pari * 4));
XVECEXP(par, 0, pari)
= gen_rtx_SET (VOIDmode,
gen_rtx_MEM (SImode, address),
gen_rtx_REG (SImode, i));
pari += 1;
}
par = emit_insn (par);
RTX_FRAME_RELATED_P (par) = 1;
}
}
void
expand_prologue ()
{
HOST_WIDE_INT size;
size = get_frame_size () + current_function_outgoing_args_size;
size += (current_function_outgoing_args_size ? 4 : 0);
if (current_function_varargs)
{
emit_move_insn (gen_rtx_MEM (SImode,
plus_constant (stack_pointer_rtx, 4)),
gen_rtx_REG (SImode, 0));
emit_move_insn (gen_rtx_MEM (SImode,
plus_constant (stack_pointer_rtx, 8)),
gen_rtx_REG (SImode, 1));
}
mn10300_gen_multiple_store (mn10300_get_live_callee_saved_regs ());
if (frame_pointer_needed)
emit_move_insn (frame_pointer_rtx, stack_pointer_rtx);
if (size)
emit_insn (gen_addsi3 (stack_pointer_rtx,
stack_pointer_rtx,
GEN_INT (-size)));
}
void
expand_epilogue ()
{
HOST_WIDE_INT size;
size = get_frame_size () + current_function_outgoing_args_size;
size += (current_function_outgoing_args_size ? 4 : 0);
if (frame_pointer_needed)
{
emit_move_insn (stack_pointer_rtx, frame_pointer_rtx);
size = 0;
}
else if (size + REG_SAVE_BYTES > 255)
{
emit_insn (gen_addsi3 (stack_pointer_rtx,
stack_pointer_rtx,
GEN_INT (size)));
size = 0;
}
if (size || regs_ever_live[2] || regs_ever_live[3]
|| regs_ever_live[6] || regs_ever_live[7]
|| regs_ever_live[14] || regs_ever_live[15]
|| regs_ever_live[16] || regs_ever_live[17]
|| frame_pointer_needed)
emit_jump_insn (gen_return_internal_regs
(GEN_INT (size + REG_SAVE_BYTES)));
else
emit_jump_insn (gen_return_internal ());
}
void
notice_update_cc (body, insn)
rtx body;
rtx insn;
{
switch (get_attr_cc (insn))
{
case CC_NONE:
break;
case CC_NONE_0HIT:
if (cc_status.value1 != 0
&& reg_overlap_mentioned_p (recog_data.operand[0], cc_status.value1))
cc_status.value1 = 0;
break;
case CC_SET_ZN:
CC_STATUS_INIT;
cc_status.flags |= CC_NO_CARRY | CC_OVERFLOW_UNUSABLE;
cc_status.value1 = recog_data.operand[0];
break;
case CC_SET_ZNV:
CC_STATUS_INIT;
cc_status.flags |= CC_NO_CARRY;
cc_status.value1 = recog_data.operand[0];
break;
case CC_COMPARE:
CC_STATUS_INIT;
cc_status.value1 = SET_SRC (body);
break;
case CC_INVERT:
CC_STATUS_INIT;
cc_status.value1 = SET_SRC (body);
cc_status.flags |= CC_INVERTED;
break;
case CC_CLOBBER:
CC_STATUS_INIT;
break;
default:
abort ();
}
}
int
store_multiple_operation (op, mode)
rtx op;
enum machine_mode mode ATTRIBUTE_UNUSED;
{
int count;
int mask;
int i;
unsigned int last;
rtx elt;
count = XVECLEN (op, 0);
if (count < 2)
return 0;
elt = XVECEXP (op, 0, 0);
if (GET_CODE (elt) != SET
|| GET_CODE (SET_DEST (elt)) != REG
|| REGNO (SET_DEST (elt)) != STACK_POINTER_REGNUM
|| GET_CODE (SET_SRC (elt)) != PLUS)
return 0;
elt = SET_SRC (elt);
if (GET_CODE (XEXP (elt, 0)) != REG
|| REGNO (XEXP (elt, 0)) != STACK_POINTER_REGNUM
|| GET_CODE (XEXP (elt, 1)) != CONST_INT
|| INTVAL (XEXP (elt, 1)) != -(count - 1) * 4)
return 0;
last = FIRST_PSEUDO_REGISTER;
mask = 0;
for (i = 1; i < count; i++)
{
elt = XVECEXP (op, 0, i);
if (GET_CODE (elt) != SET
|| GET_CODE (SET_DEST (elt)) != MEM
|| GET_CODE (SET_SRC (elt)) != REG
|| REGNO (SET_SRC (elt)) >= last)
return 0;
last = REGNO (SET_SRC (elt));
mask |= (1 << last);
elt = XEXP (SET_DEST (elt), 0);
if (GET_CODE (elt) != PLUS
|| GET_CODE (XEXP (elt, 0)) != REG
|| REGNO (XEXP (elt, 0)) != STACK_POINTER_REGNUM
|| GET_CODE (XEXP (elt, 1)) != CONST_INT
|| INTVAL (XEXP (elt, 1)) != -i * 4)
return 0;
}
if ((mask & 0x3c000) != 0
&& (mask & 0x3c000) != 0x3c000)
return 0;
return mask;
}
int
call_address_operand (op, mode)
rtx op;
enum machine_mode mode ATTRIBUTE_UNUSED;
{
return (GET_CODE (op) == SYMBOL_REF || GET_CODE (op) == REG);
}
enum reg_class
secondary_reload_class (class, mode, in)
enum reg_class class;
enum machine_mode mode;
rtx in;
{
if ((GET_CODE (in) == MEM
|| (GET_CODE (in) == REG
&& REGNO (in) >= FIRST_PSEUDO_REGISTER)
|| (GET_CODE (in) == SUBREG
&& GET_CODE (SUBREG_REG (in)) == REG
&& REGNO (SUBREG_REG (in)) >= FIRST_PSEUDO_REGISTER))
&& (mode == QImode || mode == HImode)
&& (class == ADDRESS_REGS || class == SP_REGS
|| class == SP_OR_ADDRESS_REGS))
{
if (TARGET_AM33)
return DATA_OR_EXTENDED_REGS;
return DATA_REGS;
}
if (class != SP_REGS
&& class != ADDRESS_REGS
&& class != SP_OR_ADDRESS_REGS
&& class != SP_OR_EXTENDED_REGS
&& class != ADDRESS_OR_EXTENDED_REGS
&& class != SP_OR_ADDRESS_OR_EXTENDED_REGS
&& (in == stack_pointer_rtx
|| (GET_CODE (in) == PLUS
&& (XEXP (in, 0) == stack_pointer_rtx
|| XEXP (in, 1) == stack_pointer_rtx))))
return ADDRESS_REGS;
if (GET_CODE (in) == PLUS
&& (XEXP (in, 0) == stack_pointer_rtx
|| XEXP (in, 1) == stack_pointer_rtx))
{
if (TARGET_AM33)
return DATA_OR_EXTENDED_REGS;
return DATA_REGS;
}
return NO_REGS;
}
int
initial_offset (from, to)
int from, to;
{
if (from == ARG_POINTER_REGNUM && to == FRAME_POINTER_REGNUM)
{
if (regs_ever_live[2] || regs_ever_live[3]
|| regs_ever_live[6] || regs_ever_live[7]
|| regs_ever_live[14] || regs_ever_live[15]
|| regs_ever_live[16] || regs_ever_live[17]
|| frame_pointer_needed)
return REG_SAVE_BYTES;
else
return 0;
}
if (from == ARG_POINTER_REGNUM && to == STACK_POINTER_REGNUM)
{
if (regs_ever_live[2] || regs_ever_live[3]
|| regs_ever_live[6] || regs_ever_live[7]
|| regs_ever_live[14] || regs_ever_live[15]
|| regs_ever_live[16] || regs_ever_live[17]
|| frame_pointer_needed)
return (get_frame_size () + REG_SAVE_BYTES
+ (current_function_outgoing_args_size
? current_function_outgoing_args_size + 4 : 0));
else
return (get_frame_size ()
+ (current_function_outgoing_args_size
? current_function_outgoing_args_size + 4 : 0));
}
if (from == FRAME_POINTER_REGNUM && to == STACK_POINTER_REGNUM)
return (get_frame_size ()
+ (current_function_outgoing_args_size
? current_function_outgoing_args_size + 4 : 0));
abort ();
}
rtx
mn10300_builtin_saveregs ()
{
rtx offset, mem;
tree fntype = TREE_TYPE (current_function_decl);
int argadj = ((!(TYPE_ARG_TYPES (fntype) != 0
&& (TREE_VALUE (tree_last (TYPE_ARG_TYPES (fntype)))
!= void_type_node)))
? UNITS_PER_WORD : 0);
int set = get_varargs_alias_set ();
if (argadj)
offset = plus_constant (current_function_arg_offset_rtx, argadj);
else
offset = current_function_arg_offset_rtx;
mem = gen_rtx_MEM (SImode, current_function_internal_arg_pointer);
set_mem_alias_set (mem, set);
emit_move_insn (mem, gen_rtx_REG (SImode, 0));
mem = gen_rtx_MEM (SImode,
plus_constant (current_function_internal_arg_pointer, 4));
set_mem_alias_set (mem, set);
emit_move_insn (mem, gen_rtx_REG (SImode, 1));
return copy_to_reg (expand_binop (Pmode, add_optab,
current_function_internal_arg_pointer,
offset, 0, 0, OPTAB_LIB_WIDEN));
}
void
mn10300_va_start (stdarg_p, valist, nextarg)
int stdarg_p;
tree valist;
rtx nextarg;
{
if (stdarg_p)
nextarg = expand_builtin_saveregs ();
std_expand_builtin_va_start (stdarg_p, valist, nextarg);
}
rtx
mn10300_va_arg (valist, type)
tree valist, type;
{
HOST_WIDE_INT align, rsize;
tree t, ptr, pptr;
align = PARM_BOUNDARY / BITS_PER_UNIT;
rsize = (((int_size_in_bytes (type) + align - 1) / align) * align);
t = build (POSTINCREMENT_EXPR, TREE_TYPE (valist), valist,
build_int_2 ((rsize > 8 ? 4 : rsize), 0));
TREE_SIDE_EFFECTS (t) = 1;
ptr = build_pointer_type (type);
if (rsize > 8)
{
pptr = build_pointer_type (ptr);
t = build1 (NOP_EXPR, pptr, t);
TREE_SIDE_EFFECTS (t) = 1;
t = build1 (INDIRECT_REF, ptr, t);
TREE_SIDE_EFFECTS (t) = 1;
}
else
{
t = build1 (NOP_EXPR, ptr, t);
TREE_SIDE_EFFECTS (t) = 1;
}
return expand_expr (t, NULL_RTX, Pmode, EXPAND_NORMAL);
}
rtx
function_arg (cum, mode, type, named)
CUMULATIVE_ARGS *cum;
enum machine_mode mode;
tree type;
int named ATTRIBUTE_UNUSED;
{
rtx result = 0;
int size, align;
int nregs = 2;
if (mode == BLKmode)
size = int_size_in_bytes (type);
else
size = GET_MODE_SIZE (mode);
align = size;
cum->nbytes = (cum->nbytes + 3) & ~3;
if (cum->nbytes > nregs * UNITS_PER_WORD)
return 0;
if (type == NULL_TREE
&& cum->nbytes + size > nregs * UNITS_PER_WORD)
return 0;
switch (cum->nbytes / UNITS_PER_WORD)
{
case 0:
result = gen_rtx_REG (mode, 0);
break;
case 1:
result = gen_rtx_REG (mode, 1);
break;
default:
result = 0;
}
return result;
}
int
function_arg_partial_nregs (cum, mode, type, named)
CUMULATIVE_ARGS *cum;
enum machine_mode mode;
tree type;
int named ATTRIBUTE_UNUSED;
{
int size, align;
int nregs = 2;
if (mode == BLKmode)
size = int_size_in_bytes (type);
else
size = GET_MODE_SIZE (mode);
align = size;
cum->nbytes = (cum->nbytes + 3) & ~3;
if (cum->nbytes > nregs * UNITS_PER_WORD)
return 0;
if (cum->nbytes + size <= nregs * UNITS_PER_WORD)
return 0;
if (type == NULL_TREE
&& cum->nbytes + size > nregs * UNITS_PER_WORD)
return 0;
return (nregs * UNITS_PER_WORD - cum->nbytes) / UNITS_PER_WORD;
}
const char *
output_tst (operand, insn)
rtx operand, insn;
{
rtx temp;
int past_call = 0;
temp = PREV_INSN (insn);
while (optimize && temp)
{
rtx set;
if (GET_CODE (temp) == CODE_LABEL
|| GET_CODE (temp) == JUMP_INSN
|| GET_CODE (temp) == BARRIER)
break;
if (GET_CODE (temp) == CALL_INSN)
past_call = 1;
if (GET_CODE (temp) == NOTE)
{
temp = PREV_INSN (temp);
continue;
}
set = single_set (temp);
if (!set)
{
temp = PREV_INSN (temp);
continue;
}
if (REG_P (SET_DEST (set))
&& SET_SRC (set) == CONST0_RTX (GET_MODE (SET_DEST (set)))
&& !reg_set_between_p (SET_DEST (set), temp, insn)
&& (REGNO_REG_CLASS (REGNO (SET_DEST (set)))
== REGNO_REG_CLASS (REGNO (operand)))
&& REGNO_REG_CLASS (REGNO (SET_DEST (set))) != EXTENDED_REGS
&& REGNO (SET_DEST (set)) != REGNO (operand)
&& (!past_call
|| !call_used_regs[REGNO (SET_DEST (set))]))
{
rtx xoperands[2];
xoperands[0] = operand;
xoperands[1] = SET_DEST (set);
output_asm_insn ("cmp %1,%0", xoperands);
return "";
}
if (REGNO_REG_CLASS (REGNO (operand)) == EXTENDED_REGS
&& REG_P (SET_DEST (set))
&& SET_SRC (set) == CONST0_RTX (GET_MODE (SET_DEST (set)))
&& !reg_set_between_p (SET_DEST (set), temp, insn)
&& (REGNO_REG_CLASS (REGNO (SET_DEST (set)))
!= REGNO_REG_CLASS (REGNO (operand)))
&& REGNO_REG_CLASS (REGNO (SET_DEST (set))) == EXTENDED_REGS
&& REGNO (SET_DEST (set)) != REGNO (operand)
&& (!past_call
|| !call_used_regs[REGNO (SET_DEST (set))]))
{
rtx xoperands[2];
xoperands[0] = operand;
xoperands[1] = SET_DEST (set);
output_asm_insn ("cmp %1,%0", xoperands);
return "";
}
temp = PREV_INSN (temp);
}
return "cmp 0,%0";
}
int
impossible_plus_operand (op, mode)
rtx op;
enum machine_mode mode ATTRIBUTE_UNUSED;
{
if (GET_CODE (op) != PLUS)
return 0;
if (XEXP (op, 0) == stack_pointer_rtx
|| XEXP (op, 1) == stack_pointer_rtx)
return 1;
return 0;
}
int
const_8bit_operand (op, mode)
register rtx op;
enum machine_mode mode ATTRIBUTE_UNUSED;
{
return (GET_CODE (op) == CONST_INT
&& INTVAL (op) >= 0
&& INTVAL (op) < 256);
}
int
mask_ok_for_mem_btst (len, bit)
int len;
int bit;
{
int mask = 0;
while (len > 0)
{
mask |= (1 << bit);
bit++;
len--;
}
return (((mask & 0xff) == mask)
|| ((mask & 0xff00) == mask)
|| ((mask & 0xff0000) == mask)
|| ((mask & 0xff000000) == mask));
}
int
symbolic_operand (op, mode)
register rtx op;
enum machine_mode mode ATTRIBUTE_UNUSED;
{
switch (GET_CODE (op))
{
case SYMBOL_REF:
case LABEL_REF:
return 1;
case CONST:
op = XEXP (op, 0);
return ((GET_CODE (XEXP (op, 0)) == SYMBOL_REF
|| GET_CODE (XEXP (op, 0)) == LABEL_REF)
&& GET_CODE (XEXP (op, 1)) == CONST_INT);
default:
return 0;
}
}
rtx
legitimize_address (x, oldx, mode)
rtx x;
rtx oldx ATTRIBUTE_UNUSED;
enum machine_mode mode ATTRIBUTE_UNUSED;
{
if (GET_CODE (x) == PLUS
&& symbolic_operand (XEXP (x, 1), VOIDmode))
{
rtx regx1, regy1, regy2, y;
y = XEXP (x, 1);
if (GET_CODE (y) == CONST)
y = XEXP (y, 0);
if (GET_CODE (y) == PLUS || GET_CODE (y) == MINUS)
{
regx1 = force_reg (Pmode, force_operand (XEXP (x, 0), 0));
regy1 = force_reg (Pmode, force_operand (XEXP (y, 0), 0));
regy2 = force_reg (Pmode, force_operand (XEXP (y, 1), 0));
regx1 = force_reg (Pmode,
gen_rtx (GET_CODE (y), Pmode, regx1, regy2));
return force_reg (Pmode, gen_rtx_PLUS (Pmode, regx1, regy1));
}
}
return x;
}
int
mn10300_address_cost (x, unsig)
rtx x;
int *unsig;
{
int _s = 0;
if (unsig == 0)
unsig = &_s;
switch (GET_CODE (x))
{
case REG:
switch (REGNO_REG_CLASS (REGNO (x)))
{
case SP_REGS:
*unsig = 1;
return 0;
case ADDRESS_REGS:
return 1;
case DATA_REGS:
case EXTENDED_REGS:
return 3;
case NO_REGS:
return 5;
default:
abort ();
}
case PLUS:
case MINUS:
case ASHIFT:
case AND:
case IOR:
return (mn10300_address_cost (XEXP (x, 0), unsig)
+ mn10300_address_cost (XEXP (x, 1), unsig));
case EXPR_LIST:
case SUBREG:
case MEM:
return ADDRESS_COST (XEXP (x, 0));
case ZERO_EXTEND:
*unsig = 1;
return mn10300_address_cost (XEXP (x, 0), unsig);
case CONST_INT:
if (INTVAL (x) == 0)
return 0;
if (INTVAL (x) + (*unsig ? 0 : 0x80) < 0x100)
return 1;
if (INTVAL (x) + (*unsig ? 0 : 0x8000) < 0x10000)
return 3;
if (INTVAL (x) + (*unsig ? 0 : 0x800000) < 0x1000000)
return 5;
return 7;
case CONST:
case SYMBOL_REF:
case LABEL_REF:
return 8;
case ADDRESSOF:
switch (GET_CODE (XEXP (x, 0)))
{
case MEM:
return ADDRESS_COST (XEXP (x, 0));
case REG:
return 1;
default:
abort ();
}
default:
abort ();
}
}