#include "config.h"
#include "system.h"
#include "rtl.h"
#include "regs.h"
#include "hard-reg-set.h"
#include "real.h"
#include "insn-config.h"
#include "conditions.h"
#include "insn-flags.h"
#include "output.h"
#include "insn-attr.h"
#include "flags.h"
#include "recog.h"
#include "toplev.h"
#include "obstack.h"
#include "tree.h"
#include "expr.h"
#include "optabs.h"
#include "output.h"
#include "except.h"
#include "function.h"
#include "target.h"
#include "target-def.h"
#include "tm_p.h"
#include "langhooks.h"
static rtx emit_addhi3_postreload PARAMS ((rtx, rtx, rtx));
static void xstormy16_asm_out_constructor PARAMS ((rtx, int));
static void xstormy16_asm_out_destructor PARAMS ((rtx, int));
static void xstormy16_encode_section_info PARAMS ((tree, int));
static void xstormy16_asm_output_mi_thunk PARAMS ((FILE *, tree, HOST_WIDE_INT,
HOST_WIDE_INT, tree));
static void xstormy16_init_builtins PARAMS ((void));
static rtx xstormy16_expand_builtin PARAMS ((tree, rtx, rtx, enum machine_mode, int));
struct rtx_def * xstormy16_compare_op0;
struct rtx_def * xstormy16_compare_op1;
int
xstormy16_ineqsi_operator (op, mode)
register rtx op;
enum machine_mode mode;
{
enum rtx_code code = GET_CODE (op);
return ((mode == VOIDmode || GET_MODE (op) == mode)
&& (code == LT || code == GE || code == LTU || code == GEU));
}
int
equality_operator (op, mode)
register rtx op;
enum machine_mode mode;
{
return ((mode == VOIDmode || GET_MODE (op) == mode)
&& (GET_CODE (op) == EQ || GET_CODE (op) == NE));
}
int
inequality_operator (op, mode)
register rtx op;
enum machine_mode mode;
{
return comparison_operator (op, mode) && ! equality_operator (op, mode);
}
void
xstormy16_emit_cbranch (code, loc)
enum rtx_code code;
rtx loc;
{
rtx op0 = xstormy16_compare_op0;
rtx op1 = xstormy16_compare_op1;
rtx condition_rtx, loc_ref, branch, cy_clobber;
rtvec vec;
enum machine_mode mode;
mode = GET_MODE (op0);
if (mode != HImode && mode != SImode)
abort ();
if (mode == SImode
&& (code == GT || code == LE || code == GTU || code == LEU))
{
int unsigned_p = (code == GTU || code == LEU);
int gt_p = (code == GT || code == GTU);
rtx lab = NULL_RTX;
if (gt_p)
lab = gen_label_rtx ();
xstormy16_emit_cbranch (unsigned_p ? LTU : LT, gt_p ? lab : loc);
xstormy16_emit_cbranch (gt_p ? NE : EQ, loc);
if (gt_p)
emit_label (lab);
return;
}
else if (mode == SImode
&& (code == NE || code == EQ)
&& op1 != const0_rtx)
{
rtx lab = NULL_RTX;
int num_words = GET_MODE_BITSIZE (mode) / BITS_PER_WORD;
int i;
if (code == EQ)
lab = gen_label_rtx ();
for (i = 0; i < num_words - 1; i++)
{
xstormy16_compare_op0 = simplify_gen_subreg (word_mode, op0, mode,
i * UNITS_PER_WORD);
xstormy16_compare_op1 = simplify_gen_subreg (word_mode, op1, mode,
i * UNITS_PER_WORD);
xstormy16_emit_cbranch (NE, code == EQ ? lab : loc);
}
xstormy16_compare_op0 = simplify_gen_subreg (word_mode, op0, mode,
i * UNITS_PER_WORD);
xstormy16_compare_op1 = simplify_gen_subreg (word_mode, op1, mode,
i * UNITS_PER_WORD);
xstormy16_emit_cbranch (code, loc);
if (code == EQ)
emit_label (lab);
return;
}
if (mode != HImode)
{
rtx tmp;
tmp = gen_reg_rtx (mode);
emit_move_insn (tmp, op0);
op0 = tmp;
}
condition_rtx = gen_rtx (code, mode, op0, op1);
loc_ref = gen_rtx_LABEL_REF (VOIDmode, loc);
branch = gen_rtx_SET (VOIDmode, pc_rtx,
gen_rtx_IF_THEN_ELSE (VOIDmode, condition_rtx,
loc_ref, pc_rtx));
cy_clobber = gen_rtx_CLOBBER (VOIDmode, gen_rtx_SCRATCH (BImode));
if (mode == HImode)
vec = gen_rtvec (2, branch, cy_clobber);
else if (code == NE || code == EQ)
vec = gen_rtvec (2, branch, gen_rtx_CLOBBER (VOIDmode, op0));
else
{
rtx sub;
#if 0
sub = gen_rtx_SET (VOIDmode, op0, gen_rtx_MINUS (SImode, op0, op1));
#else
sub = gen_rtx_CLOBBER (SImode, op0);
#endif
vec = gen_rtvec (3, branch, sub, cy_clobber);
}
emit_jump_insn (gen_rtx_PARALLEL (VOIDmode, vec));
}
void
xstormy16_split_cbranch (mode, label, comparison, dest, carry)
enum machine_mode mode;
rtx label;
rtx comparison;
rtx dest;
rtx carry;
{
rtx op0 = XEXP (comparison, 0);
rtx op1 = XEXP (comparison, 1);
rtx seq, last_insn;
rtx compare;
start_sequence ();
xstormy16_expand_arith (mode, COMPARE, dest, op0, op1, carry);
seq = get_insns ();
end_sequence ();
if (! INSN_P (seq))
abort ();
last_insn = seq;
while (NEXT_INSN (last_insn) != NULL_RTX)
last_insn = NEXT_INSN (last_insn);
compare = SET_SRC (XVECEXP (PATTERN (last_insn), 0, 0));
PUT_CODE (XEXP (compare, 0), GET_CODE (comparison));
XEXP (compare, 1) = gen_rtx_LABEL_REF (VOIDmode, label);
emit_insn (seq);
}
char *
xstormy16_output_cbranch_hi (op, label, reversed, insn)
rtx op;
const char * label;
int reversed;
rtx insn;
{
static char string[64];
int need_longbranch = (op != NULL_RTX
? get_attr_length (insn) == 8
: get_attr_length (insn) == 4);
int really_reversed = reversed ^ need_longbranch;
const char *ccode;
const char *template;
const char *operands;
enum rtx_code code;
if (! op)
{
if (need_longbranch)
ccode = "jmpf";
else
ccode = "br";
sprintf (string, "%s %s", ccode, label);
return string;
}
code = GET_CODE (op);
if (GET_CODE (XEXP (op, 0)) != REG)
{
code = swap_condition (code);
operands = "%3,%2";
}
else
operands = "%2,%3";
if (really_reversed)
code = reverse_condition (code);
switch (code)
{
case EQ: ccode = "z"; break;
case NE: ccode = "nz"; break;
case GE: ccode = "ge"; break;
case LT: ccode = "lt"; break;
case GT: ccode = "gt"; break;
case LE: ccode = "le"; break;
case GEU: ccode = "nc"; break;
case LTU: ccode = "c"; break;
case GTU: ccode = "hi"; break;
case LEU: ccode = "ls"; break;
default:
abort ();
}
if (need_longbranch)
template = "b%s %s,.+8 | jmpf %s";
else
template = "b%s %s,%s";
sprintf (string, template, ccode, operands, label);
return string;
}
char *
xstormy16_output_cbranch_si (op, label, reversed, insn)
rtx op;
const char * label;
int reversed;
rtx insn;
{
static char string[64];
int need_longbranch = get_attr_length (insn) >= 8;
int really_reversed = reversed ^ need_longbranch;
const char *ccode;
const char *template;
char prevop[16];
enum rtx_code code;
code = GET_CODE (op);
if (really_reversed)
code = reverse_condition (code);
switch (code)
{
case EQ: ccode = "z"; break;
case NE: ccode = "nz"; break;
case GE: ccode = "ge"; break;
case LT: ccode = "lt"; break;
case GEU: ccode = "nc"; break;
case LTU: ccode = "c"; break;
default:
abort ();
}
switch (code)
{
case EQ: case NE:
{
int regnum;
if (GET_CODE (XEXP (op, 0)) != REG)
abort ();
regnum = REGNO (XEXP (op, 0));
sprintf (prevop, "or %s,%s", reg_names[regnum], reg_names[regnum+1]);
}
break;
case GE: case LT: case GEU: case LTU:
strcpy (prevop, "sbc %2,%3");
break;
default:
abort ();
}
if (need_longbranch)
template = "%s | b%s .+6 | jmpf %s";
else
template = "%s | b%s %s";
sprintf (string, template, prevop, ccode, label);
return string;
}
enum reg_class
xstormy16_secondary_reload_class (class, mode, x)
enum reg_class class;
enum machine_mode mode;
rtx x;
{
if ((GET_CODE (x) == MEM
|| ((GET_CODE (x) == SUBREG || GET_CODE (x) == REG)
&& (true_regnum (x) == -1
|| true_regnum (x) >= FIRST_PSEUDO_REGISTER)))
&& ! reg_class_subset_p (class, EIGHT_REGS))
return EIGHT_REGS;
if (xstormy16_carry_plus_operand (x, mode))
return CARRY_REGS;
return NO_REGS;
}
int
xstormy16_carry_plus_operand (x, mode)
rtx x;
enum machine_mode mode ATTRIBUTE_UNUSED;
{
return (GET_CODE (x) == PLUS
&& GET_CODE (XEXP (x, 1)) == CONST_INT
&& (INTVAL (XEXP (x, 1)) < -4 || INTVAL (XEXP (x, 1)) > 4));
}
enum reg_class
xstormy16_preferred_reload_class (x, class)
enum reg_class class;
rtx x;
{
if (class == GENERAL_REGS
&& GET_CODE (x) == MEM)
return EIGHT_REGS;
return class;
}
#define LEGITIMATE_ADDRESS_INTEGER_P(X, OFFSET) \
(GET_CODE (X) == CONST_INT \
&& (unsigned HOST_WIDE_INT) (INTVAL (X) + (OFFSET) + 2048) < 4096)
#define LEGITIMATE_ADDRESS_CONST_INT_P(X, OFFSET) \
(GET_CODE (X) == CONST_INT \
&& INTVAL (X) + (OFFSET) >= 0 \
&& INTVAL (X) + (OFFSET) < 0x8000 \
&& (INTVAL (X) + (OFFSET) < 0x100 || INTVAL (X) + (OFFSET) >= 0x7F00))
int
xstormy16_legitimate_address_p (mode, x, strict)
enum machine_mode mode ATTRIBUTE_UNUSED;
rtx x;
int strict;
{
if (LEGITIMATE_ADDRESS_CONST_INT_P (x, 0))
return 1;
if (GET_CODE (x) == PLUS
&& LEGITIMATE_ADDRESS_INTEGER_P (XEXP (x, 1), 0))
x = XEXP (x, 0);
if (GET_CODE (x) == POST_INC
|| GET_CODE (x) == PRE_DEC)
x = XEXP (x, 0);
if (GET_CODE (x) == REG && REGNO_OK_FOR_BASE_P (REGNO (x))
&& (! strict || REGNO (x) < FIRST_PSEUDO_REGISTER))
return 1;
return 0;
}
int
xstormy16_mode_dependent_address_p (x)
rtx x;
{
if (LEGITIMATE_ADDRESS_CONST_INT_P (x, 0)
&& ! LEGITIMATE_ADDRESS_CONST_INT_P (x, 6))
return 1;
if (GET_CODE (x) == PLUS
&& LEGITIMATE_ADDRESS_INTEGER_P (XEXP (x, 1), 0)
&& ! LEGITIMATE_ADDRESS_INTEGER_P (XEXP (x, 1), 6))
return 1;
if (GET_CODE (x) == PLUS)
x = XEXP (x, 0);
if (GET_CODE (x) == POST_INC
|| GET_CODE (x) == PRE_DEC)
return 1;
return 0;
}
int
xstormy16_extra_constraint_p (x, c)
rtx x;
int c;
{
switch (c)
{
case 'Q':
return (GET_CODE (x) == MEM
&& GET_CODE (XEXP (x, 0)) == POST_INC
&& XEXP (XEXP (x, 0), 0) == stack_pointer_rtx);
case 'R':
return (GET_CODE (x) == MEM
&& GET_CODE (XEXP (x, 0)) == PRE_DEC
&& XEXP (XEXP (x, 0), 0) == stack_pointer_rtx);
case 'S':
return (GET_CODE (x) == MEM
&& GET_CODE (XEXP (x, 0)) == CONST_INT
&& xstormy16_legitimate_address_p (VOIDmode, XEXP (x, 0), 0));
case 'T':
return 0;
case 'U':
return (GET_CODE (x) == CONST_INT
&& (INTVAL (x) < 2 || INTVAL (x) > 15));
default:
return 0;
}
}
int
short_memory_operand (x, mode)
rtx x;
enum machine_mode mode;
{
if (! memory_operand (x, mode))
return 0;
return (GET_CODE (XEXP (x, 0)) != PLUS);
}
int
nonimmediate_nonstack_operand (op, mode)
rtx op;
enum machine_mode mode;
{
return (nonimmediate_operand (op, mode)
&& ! xstormy16_extra_constraint_p (op, 'Q')
&& ! xstormy16_extra_constraint_p (op, 'R'));
}
void
xstormy16_split_move (mode, dest, src)
enum machine_mode mode;
rtx dest;
rtx src;
{
int num_words = GET_MODE_BITSIZE (mode) / BITS_PER_WORD;
int direction, end, i;
int src_modifies = 0;
int dest_modifies = 0;
int src_volatile = 0;
int dest_volatile = 0;
rtx mem_operand;
rtx auto_inc_reg_rtx = NULL_RTX;
if (! reload_completed
|| mode == QImode || mode == HImode
|| ! nonimmediate_operand (dest, mode)
|| ! general_operand (src, mode))
abort ();
if (GET_CODE (dest) == MEM
&& GET_CODE (src) == MEM)
abort ();
if (GET_CODE (dest) == SUBREG
|| GET_CODE (src) == SUBREG)
abort ();
direction = 1;
if (GET_CODE (dest) == MEM)
{
mem_operand = XEXP (dest, 0);
dest_modifies = side_effects_p (mem_operand);
if (auto_inc_p (mem_operand))
auto_inc_reg_rtx = XEXP (mem_operand, 0);
dest_volatile = MEM_VOLATILE_P (dest);
if (dest_volatile)
{
dest = copy_rtx (dest);
MEM_VOLATILE_P (dest) = 0;
}
}
else if (GET_CODE (src) == MEM)
{
mem_operand = XEXP (src, 0);
src_modifies = side_effects_p (mem_operand);
if (auto_inc_p (mem_operand))
auto_inc_reg_rtx = XEXP (mem_operand, 0);
src_volatile = MEM_VOLATILE_P (src);
if (src_volatile)
{
src = copy_rtx (src);
MEM_VOLATILE_P (src) = 0;
}
}
else
mem_operand = NULL_RTX;
if (mem_operand == NULL_RTX)
{
if (GET_CODE (src) == REG
&& GET_CODE (dest) == REG
&& reg_overlap_mentioned_p (dest, src)
&& REGNO (dest) > REGNO (src))
direction = -1;
}
else if (GET_CODE (mem_operand) == PRE_DEC
|| (GET_CODE (mem_operand) == PLUS
&& GET_CODE (XEXP (mem_operand, 0)) == PRE_DEC))
direction = -1;
else if (GET_CODE (src) == MEM
&& reg_overlap_mentioned_p (dest, src))
{
int regno;
if (GET_CODE (dest) != REG)
abort ();
regno = REGNO (dest);
if (! refers_to_regno_p (regno, regno + num_words, mem_operand, 0))
abort ();
if (refers_to_regno_p (regno, regno + 1, mem_operand, 0))
direction = -1;
else if (refers_to_regno_p (regno + num_words - 1, regno + num_words,
mem_operand, 0))
direction = 1;
else
abort ();
}
end = direction < 0 ? -1 : num_words;
for (i = direction < 0 ? num_words - 1 : 0; i != end; i += direction)
{
rtx w_src, w_dest, insn;
if (src_modifies)
w_src = gen_rtx_MEM (word_mode, mem_operand);
else
w_src = simplify_gen_subreg (word_mode, src, mode, i * UNITS_PER_WORD);
if (src_volatile)
MEM_VOLATILE_P (w_src) = 1;
if (dest_modifies)
w_dest = gen_rtx_MEM (word_mode, mem_operand);
else
w_dest = simplify_gen_subreg (word_mode, dest, mode,
i * UNITS_PER_WORD);
if (dest_volatile)
MEM_VOLATILE_P (w_dest) = 1;
if (GET_CODE (w_src) == SUBREG
|| GET_CODE (w_dest) == SUBREG)
abort ();
insn = emit_insn (gen_rtx_SET (VOIDmode, w_dest, w_src));
if (auto_inc_reg_rtx)
REG_NOTES (insn) = alloc_EXPR_LIST (REG_INC,
auto_inc_reg_rtx,
REG_NOTES (insn));
}
}
void
xstormy16_expand_move (mode, dest, src)
enum machine_mode mode;
rtx dest;
rtx src;
{
if (! reload_in_progress
&& ! reload_completed
&& GET_CODE (dest) == MEM
&& (GET_CODE (XEXP (dest, 0)) != CONST_INT
|| ! xstormy16_legitimate_address_p (mode, XEXP (dest, 0), 0))
&& GET_CODE (src) != REG
&& GET_CODE (src) != SUBREG)
src = copy_to_mode_reg (mode, src);
if (reload_completed
&& mode != HImode && mode != QImode)
{
xstormy16_split_move (mode, dest, src);
return;
}
emit_insn (gen_rtx_SET (VOIDmode, dest, src));
}
struct xstormy16_stack_layout
{
int locals_size;
int register_save_size;
int stdarg_save_size;
int frame_size;
int first_local_minus_ap;
int sp_minus_fp;
int fp_minus_ap;
};
#define REG_NEEDS_SAVE(REGNUM, IFUN) \
((regs_ever_live[REGNUM] && ! call_used_regs[REGNUM]) \
|| (IFUN && ! fixed_regs[REGNUM] && call_used_regs[REGNUM] \
&& (regs_ever_live[REGNUM] || ! current_function_is_leaf)))
struct xstormy16_stack_layout
xstormy16_compute_stack_layout ()
{
struct xstormy16_stack_layout layout;
int regno;
const int ifun = xstormy16_interrupt_function_p ();
layout.locals_size = get_frame_size ();
layout.register_save_size = 0;
for (regno = 0; regno < FIRST_PSEUDO_REGISTER; regno++)
if (REG_NEEDS_SAVE (regno, ifun))
layout.register_save_size += UNITS_PER_WORD;
if (current_function_stdarg)
layout.stdarg_save_size = NUM_ARGUMENT_REGISTERS * UNITS_PER_WORD;
else
layout.stdarg_save_size = 0;
layout.frame_size = (layout.locals_size
+ layout.register_save_size
+ layout.stdarg_save_size);
if (current_function_args_size <= 2048 && current_function_args_size != -1)
{
if (layout.frame_size + INCOMING_FRAME_SP_OFFSET
+ current_function_args_size <= 2048)
layout.fp_minus_ap = layout.frame_size + INCOMING_FRAME_SP_OFFSET;
else
layout.fp_minus_ap = 2048 - current_function_args_size;
}
else
layout.fp_minus_ap = (layout.stdarg_save_size
+ layout.register_save_size
+ INCOMING_FRAME_SP_OFFSET);
layout.sp_minus_fp = (layout.frame_size + INCOMING_FRAME_SP_OFFSET
- layout.fp_minus_ap);
layout.first_local_minus_ap = layout.sp_minus_fp - layout.locals_size;
return layout;
}
int
xstormy16_initial_elimination_offset (from, to)
int from, to;
{
struct xstormy16_stack_layout layout;
int result;
layout = xstormy16_compute_stack_layout ();
if (from == FRAME_POINTER_REGNUM && to == HARD_FRAME_POINTER_REGNUM)
result = layout.sp_minus_fp - layout.locals_size;
else if (from == FRAME_POINTER_REGNUM && to == STACK_POINTER_REGNUM)
result = -layout.locals_size;
else if (from == ARG_POINTER_REGNUM && to == HARD_FRAME_POINTER_REGNUM)
result = -layout.fp_minus_ap;
else if (from == ARG_POINTER_REGNUM && to == STACK_POINTER_REGNUM)
result = -(layout.sp_minus_fp + layout.fp_minus_ap);
else
abort ();
return result;
}
static rtx
emit_addhi3_postreload (dest, src0, src1)
rtx dest;
rtx src0;
rtx src1;
{
rtx set, clobber, insn;
set = gen_rtx_SET (VOIDmode, dest, gen_rtx_PLUS (HImode, src0, src1));
clobber = gen_rtx_CLOBBER (VOIDmode, gen_rtx_REG (BImode, 16));
insn = emit_insn (gen_rtx_PARALLEL (VOIDmode, gen_rtvec (2, set, clobber)));
return insn;
}
void
xstormy16_expand_prologue ()
{
struct xstormy16_stack_layout layout;
int regno;
rtx insn;
rtx mem_push_rtx;
rtx mem_fake_push_rtx;
const int ifun = xstormy16_interrupt_function_p ();
mem_push_rtx = gen_rtx_POST_INC (Pmode, stack_pointer_rtx);
mem_push_rtx = gen_rtx_MEM (HImode, mem_push_rtx);
mem_fake_push_rtx = gen_rtx_PRE_INC (Pmode, stack_pointer_rtx);
mem_fake_push_rtx = gen_rtx_MEM (HImode, mem_fake_push_rtx);
layout = xstormy16_compute_stack_layout ();
if (layout.stdarg_save_size)
for (regno = FIRST_ARGUMENT_REGISTER;
regno < FIRST_ARGUMENT_REGISTER + NUM_ARGUMENT_REGISTERS;
regno++)
{
rtx reg = gen_rtx_REG (HImode, regno);
insn = emit_move_insn (mem_push_rtx, reg);
RTX_FRAME_RELATED_P (insn) = 1;
REG_NOTES (insn) = gen_rtx_EXPR_LIST (REG_FRAME_RELATED_EXPR,
gen_rtx_SET (VOIDmode,
mem_fake_push_rtx,
reg),
REG_NOTES (insn));
}
for (regno = 0; regno < FIRST_PSEUDO_REGISTER; regno++)
if (REG_NEEDS_SAVE (regno, ifun))
{
rtx reg = gen_rtx_REG (HImode, regno);
insn = emit_move_insn (mem_push_rtx, reg);
RTX_FRAME_RELATED_P (insn) = 1;
REG_NOTES (insn) = gen_rtx_EXPR_LIST (REG_FRAME_RELATED_EXPR,
gen_rtx_SET (VOIDmode,
mem_fake_push_rtx,
reg),
REG_NOTES (insn));
}
if (frame_pointer_needed && layout.sp_minus_fp == layout.locals_size)
{
insn = emit_move_insn (hard_frame_pointer_rtx, stack_pointer_rtx);
RTX_FRAME_RELATED_P (insn) = 1;
}
if (layout.locals_size)
{
insn = emit_addhi3_postreload (stack_pointer_rtx, stack_pointer_rtx,
GEN_INT (layout.locals_size));
RTX_FRAME_RELATED_P (insn) = 1;
}
if (frame_pointer_needed && layout.sp_minus_fp != layout.locals_size)
{
insn = emit_move_insn (hard_frame_pointer_rtx, stack_pointer_rtx);
RTX_FRAME_RELATED_P (insn) = 1;
if (layout.sp_minus_fp)
{
insn = emit_addhi3_postreload (hard_frame_pointer_rtx,
hard_frame_pointer_rtx,
GEN_INT (-layout.sp_minus_fp));
RTX_FRAME_RELATED_P (insn) = 1;
}
}
}
int
direct_return ()
{
return (reload_completed
&& xstormy16_compute_stack_layout ().frame_size == 0);
}
void
xstormy16_expand_epilogue ()
{
struct xstormy16_stack_layout layout;
rtx mem_pop_rtx;
int regno;
const int ifun = xstormy16_interrupt_function_p ();
mem_pop_rtx = gen_rtx_PRE_DEC (Pmode, stack_pointer_rtx);
mem_pop_rtx = gen_rtx_MEM (HImode, mem_pop_rtx);
layout = xstormy16_compute_stack_layout ();
if (layout.locals_size)
{
if (frame_pointer_needed && layout.sp_minus_fp == layout.locals_size)
emit_move_insn (stack_pointer_rtx, hard_frame_pointer_rtx);
else
emit_addhi3_postreload (stack_pointer_rtx, stack_pointer_rtx,
GEN_INT (- layout.locals_size));
}
for (regno = FIRST_PSEUDO_REGISTER - 1; regno >= 0; regno--)
if (REG_NEEDS_SAVE (regno, ifun))
emit_move_insn (gen_rtx_REG (HImode, regno), mem_pop_rtx);
if (layout.stdarg_save_size)
emit_addhi3_postreload (stack_pointer_rtx, stack_pointer_rtx,
GEN_INT (- layout.stdarg_save_size));
if (ifun)
emit_jump_insn (gen_return_internal_interrupt ());
else
emit_jump_insn (gen_return_internal ());
}
int
xstormy16_epilogue_uses (regno)
int regno;
{
if (reload_completed && call_used_regs[regno])
{
const int ifun = xstormy16_interrupt_function_p ();
return REG_NEEDS_SAVE (regno, ifun);
}
return 0;
}
CUMULATIVE_ARGS
xstormy16_function_arg_advance (cum, mode, type, named)
CUMULATIVE_ARGS cum;
enum machine_mode mode;
tree type;
int named ATTRIBUTE_UNUSED;
{
if (cum < NUM_ARGUMENT_REGISTERS
&& cum + XSTORMY16_WORD_SIZE (type, mode) > NUM_ARGUMENT_REGISTERS)
cum = NUM_ARGUMENT_REGISTERS;
cum += XSTORMY16_WORD_SIZE (type, mode);
return cum;
}
void
xstormy16_setup_incoming_varargs (cum, int_mode, type, pretend_size)
CUMULATIVE_ARGS cum ATTRIBUTE_UNUSED;
int int_mode ATTRIBUTE_UNUSED;
tree type ATTRIBUTE_UNUSED;
int * pretend_size ATTRIBUTE_UNUSED;
{
}
tree
xstormy16_build_va_list ()
{
tree f_1, f_2, record, type_decl;
record = (*lang_hooks.types.make_type) (RECORD_TYPE);
type_decl = build_decl (TYPE_DECL, get_identifier ("__va_list_tag"), record);
f_1 = build_decl (FIELD_DECL, get_identifier ("base"),
ptr_type_node);
f_2 = build_decl (FIELD_DECL, get_identifier ("count"),
unsigned_type_node);
DECL_FIELD_CONTEXT (f_1) = record;
DECL_FIELD_CONTEXT (f_2) = record;
TREE_CHAIN (record) = type_decl;
TYPE_NAME (record) = type_decl;
TYPE_FIELDS (record) = f_1;
TREE_CHAIN (f_1) = f_2;
layout_type (record);
return record;
}
void
xstormy16_expand_builtin_va_start (valist, nextarg)
tree valist;
rtx nextarg ATTRIBUTE_UNUSED;
{
tree f_base, f_count;
tree base, count;
tree t;
if (xstormy16_interrupt_function_p ())
error ("cannot use va_start in interrupt function");
f_base = TYPE_FIELDS (va_list_type_node);
f_count = TREE_CHAIN (f_base);
base = build (COMPONENT_REF, TREE_TYPE (f_base), valist, f_base);
count = build (COMPONENT_REF, TREE_TYPE (f_count), valist, f_count);
t = make_tree (TREE_TYPE (base), virtual_incoming_args_rtx);
t = build (PLUS_EXPR, TREE_TYPE (base), t,
build_int_2 (INCOMING_FRAME_SP_OFFSET, 0));
t = build (MODIFY_EXPR, TREE_TYPE (base), base, t);
TREE_SIDE_EFFECTS (t) = 1;
expand_expr (t, const0_rtx, VOIDmode, EXPAND_NORMAL);
t = build (MODIFY_EXPR, TREE_TYPE (count), count,
build_int_2 (current_function_args_info * UNITS_PER_WORD, 0));
TREE_SIDE_EFFECTS (t) = 1;
expand_expr (t, const0_rtx, VOIDmode, EXPAND_NORMAL);
}
rtx
xstormy16_expand_builtin_va_arg (valist, type)
tree valist;
tree type;
{
tree f_base, f_count;
tree base, count;
rtx count_rtx, addr_rtx, r;
rtx lab_gotaddr, lab_fromstack;
tree t;
int size, size_of_reg_args;
tree size_tree, count_plus_size;
rtx count_plus_size_rtx;
f_base = TYPE_FIELDS (va_list_type_node);
f_count = TREE_CHAIN (f_base);
base = build (COMPONENT_REF, TREE_TYPE (f_base), valist, f_base);
count = build (COMPONENT_REF, TREE_TYPE (f_count), valist, f_count);
size = PUSH_ROUNDING (int_size_in_bytes (type));
size_tree = round_up (size_in_bytes (type), UNITS_PER_WORD);
size_of_reg_args = NUM_ARGUMENT_REGISTERS * UNITS_PER_WORD;
count_rtx = expand_expr (count, NULL_RTX, HImode, EXPAND_NORMAL);
lab_gotaddr = gen_label_rtx ();
lab_fromstack = gen_label_rtx ();
addr_rtx = gen_reg_rtx (Pmode);
count_plus_size = build (PLUS_EXPR, TREE_TYPE (count), count, size_tree);
count_plus_size_rtx = expand_expr (count_plus_size, NULL_RTX, HImode, EXPAND_NORMAL);
emit_cmp_and_jump_insns (count_plus_size_rtx, GEN_INT (size_of_reg_args),
GTU, const1_rtx, HImode, 1, lab_fromstack);
t = build (PLUS_EXPR, ptr_type_node, base, count);
r = expand_expr (t, addr_rtx, Pmode, EXPAND_NORMAL);
if (r != addr_rtx)
emit_move_insn (addr_rtx, r);
emit_jump_insn (gen_jump (lab_gotaddr));
emit_barrier ();
emit_label (lab_fromstack);
if (size > 2 || size < 0)
{
rtx lab_notransition = gen_label_rtx ();
emit_cmp_and_jump_insns (count_rtx, GEN_INT (NUM_ARGUMENT_REGISTERS
* UNITS_PER_WORD),
GEU, const1_rtx, HImode, 1, lab_notransition);
t = build (MODIFY_EXPR, TREE_TYPE (count), count,
build_int_2 (NUM_ARGUMENT_REGISTERS * UNITS_PER_WORD, 0));
TREE_SIDE_EFFECTS (t) = 1;
expand_expr (t, const0_rtx, VOIDmode, EXPAND_NORMAL);
emit_label (lab_notransition);
}
t = build (PLUS_EXPR, sizetype, size_tree,
build_int_2 ((- NUM_ARGUMENT_REGISTERS * UNITS_PER_WORD
+ INCOMING_FRAME_SP_OFFSET),
-1));
t = build (PLUS_EXPR, TREE_TYPE (count), count, fold (t));
t = build (MINUS_EXPR, TREE_TYPE (base), base, t);
r = expand_expr (t, addr_rtx, Pmode, EXPAND_NORMAL);
if (r != addr_rtx)
emit_move_insn (addr_rtx, r);
emit_label (lab_gotaddr);
count_plus_size = build (PLUS_EXPR, TREE_TYPE (count), count, size_tree);
t = build (MODIFY_EXPR, TREE_TYPE (count), count, count_plus_size);
TREE_SIDE_EFFECTS (t) = 1;
expand_expr (t, const0_rtx, VOIDmode, EXPAND_NORMAL);
return addr_rtx;
}
void
xstormy16_initialize_trampoline (addr, fnaddr, static_chain)
rtx addr;
rtx fnaddr;
rtx static_chain;
{
rtx reg_addr = gen_reg_rtx (Pmode);
rtx temp = gen_reg_rtx (HImode);
rtx reg_fnaddr = gen_reg_rtx (HImode);
rtx reg_addr_mem;
reg_addr_mem = gen_rtx_MEM (HImode, reg_addr);
emit_move_insn (reg_addr, addr);
emit_move_insn (temp, GEN_INT (0x3130 | STATIC_CHAIN_REGNUM));
emit_move_insn (reg_addr_mem, temp);
emit_insn (gen_addhi3 (reg_addr, reg_addr, const2_rtx));
emit_move_insn (temp, static_chain);
emit_move_insn (reg_addr_mem, temp);
emit_insn (gen_addhi3 (reg_addr, reg_addr, const2_rtx));
emit_move_insn (reg_fnaddr, fnaddr);
emit_move_insn (temp, reg_fnaddr);
emit_insn (gen_andhi3 (temp, temp, GEN_INT (0xFF)));
emit_insn (gen_iorhi3 (temp, temp, GEN_INT (0x0200)));
emit_move_insn (reg_addr_mem, temp);
emit_insn (gen_addhi3 (reg_addr, reg_addr, const2_rtx));
emit_insn (gen_lshrhi3 (reg_fnaddr, reg_fnaddr, GEN_INT (8)));
emit_move_insn (reg_addr_mem, reg_fnaddr);
}
rtx
xstormy16_function_value (valtype, func)
tree valtype;
tree func ATTRIBUTE_UNUSED;
{
enum machine_mode mode;
mode = TYPE_MODE (valtype);
PROMOTE_MODE (mode, 0, valtype);
return gen_rtx_REG (mode, RETURN_VALUE_REGNUM);
}
static void
xstormy16_asm_output_mi_thunk (file, thunk_fndecl, delta,
vcall_offset, function)
FILE *file;
tree thunk_fndecl ATTRIBUTE_UNUSED;
HOST_WIDE_INT delta;
HOST_WIDE_INT vcall_offset ATTRIBUTE_UNUSED;
tree function;
{
int regnum = FIRST_ARGUMENT_REGISTER;
if (aggregate_value_p (TREE_TYPE (TREE_TYPE (function))))
regnum += 1;
fprintf (file, "\tadd %s,#0x%x\n", reg_names[regnum], (int) delta & 0xFFFF);
fputs ("\tjmpf ", file);
assemble_name (file, XSTR (XEXP (DECL_RTL (function), 0), 0));
putc ('\n', file);
}
static void
xstormy16_encode_section_info (decl, first)
tree decl;
int first ATTRIBUTE_UNUSED;
{
if (TREE_CODE (decl) == FUNCTION_DECL)
SYMBOL_REF_FLAG (XEXP (DECL_RTL (decl), 0)) = 1;
}
#undef TARGET_ASM_CONSTRUCTOR
#define TARGET_ASM_CONSTRUCTOR xstormy16_asm_out_constructor
#undef TARGET_ASM_DESTRUCTOR
#define TARGET_ASM_DESTRUCTOR xstormy16_asm_out_destructor
static void
xstormy16_asm_out_destructor (symbol, priority)
rtx symbol;
int priority;
{
const char *section = ".dtors";
char buf[16];
if (priority != DEFAULT_INIT_PRIORITY)
{
sprintf (buf, ".dtors.%.5u",
MAX_INIT_PRIORITY - priority);
section = buf;
}
named_section_flags (section, 0);
assemble_align (POINTER_SIZE);
assemble_integer (symbol, POINTER_SIZE / BITS_PER_UNIT, POINTER_SIZE, 1);
}
static void
xstormy16_asm_out_constructor (symbol, priority)
rtx symbol;
int priority;
{
const char *section = ".ctors";
char buf[16];
if (priority != DEFAULT_INIT_PRIORITY)
{
sprintf (buf, ".ctors.%.5u",
MAX_INIT_PRIORITY - priority);
section = buf;
}
named_section_flags (section, 0);
assemble_align (POINTER_SIZE);
assemble_integer (symbol, POINTER_SIZE / BITS_PER_UNIT, POINTER_SIZE, 1);
}
void
xstormy16_print_operand_address (file, address)
FILE * file;
rtx address;
{
HOST_WIDE_INT offset;
int pre_dec, post_inc;
if (GET_CODE (address) == CONST_INT)
{
fprintf (file, HOST_WIDE_INT_PRINT_DEC, INTVAL (address) & 0xFFFF);
return;
}
if (CONSTANT_P (address) || GET_CODE (address) == CODE_LABEL)
{
output_addr_const (file, address);
return;
}
if (GET_CODE (address) == PLUS)
{
if (GET_CODE (XEXP (address, 1)) != CONST_INT)
abort ();
offset = INTVAL (XEXP (address, 1));
address = XEXP (address, 0);
}
else
offset = 0;
pre_dec = (GET_CODE (address) == PRE_DEC);
post_inc = (GET_CODE (address) == POST_INC);
if (pre_dec || post_inc)
address = XEXP (address, 0);
if (GET_CODE (address) != REG)
abort ();
fputc ('(', file);
if (pre_dec)
fputs ("--", file);
fputs (reg_names [REGNO (address)], file);
if (post_inc)
fputs ("++", file);
if (offset != 0)
{
fputc (',', file);
fprintf (file, HOST_WIDE_INT_PRINT_DEC, offset);
}
fputc (')', file);
}
void
xstormy16_print_operand (file, x, code)
FILE * file;
rtx x;
int code;
{
switch (code)
{
case 'B':
{
HOST_WIDE_INT xx = 1;
HOST_WIDE_INT l;
if (GET_CODE (x) == CONST_INT)
xx = INTVAL (x);
else
output_operand_lossage ("`B' operand is not constant");
l = exact_log2 (xx);
if (l == -1)
l = exact_log2 (~xx);
if (l == -1)
output_operand_lossage ("`B' operand has multiple bits set");
fputs (IMMEDIATE_PREFIX, file);
fprintf (file, HOST_WIDE_INT_PRINT_DEC, l);
return;
}
case 'C':
if (GET_CODE (x) == SYMBOL_REF)
assemble_name (file, XSTR (x, 0));
else if (GET_CODE (x) == LABEL_REF)
output_asm_label (x);
else
xstormy16_print_operand_address (file, x);
return;
case 'o':
case 'O':
{
HOST_WIDE_INT xx = 0;
if (GET_CODE (x) == CONST_INT)
xx = INTVAL (x);
else
output_operand_lossage ("`o' operand is not constant");
if (code == 'O')
xx = -xx;
fputs (IMMEDIATE_PREFIX, file);
fprintf (file, HOST_WIDE_INT_PRINT_DEC, xx - 1);
return;
}
case 0:
break;
default:
output_operand_lossage ("xstormy16_print_operand: unknown code");
return;
}
switch (GET_CODE (x))
{
case REG:
fputs (reg_names [REGNO (x)], file);
break;
case MEM:
xstormy16_print_operand_address (file, XEXP (x, 0));
break;
default:
fputs (IMMEDIATE_PREFIX, file);
output_addr_const (file, x);
break;
}
return;
}
void
xstormy16_expand_casesi (index, lower_bound, range, table, default_label)
rtx index;
rtx lower_bound;
rtx range;
rtx table;
rtx default_label;
{
HOST_WIDE_INT range_i = INTVAL (range);
rtx int_index;
if (range_i >= 8192)
sorry ("switch statement of size %lu entries too large",
(unsigned long) range_i);
index = expand_binop (SImode, sub_optab, index, lower_bound, NULL_RTX, 0,
OPTAB_LIB_WIDEN);
emit_cmp_and_jump_insns (index, range, GTU, NULL_RTX, SImode, 1,
default_label);
int_index = gen_lowpart_common (HImode, index);
emit_insn (gen_ashlhi3 (int_index, int_index, GEN_INT (2)));
emit_jump_insn (gen_tablejump_pcrel (int_index, table));
}
void
xstormy16_output_addr_vec (file, label, table)
FILE *file;
rtx label ATTRIBUTE_UNUSED;
rtx table;
{
int vlen, idx;
function_section (current_function_decl);
vlen = XVECLEN (table, 0);
for (idx = 0; idx < vlen; idx++)
{
fputs ("\tjmpf ", file);
output_asm_label (XEXP (XVECEXP (table, 0, idx), 0));
fputc ('\n', file);
}
}
void
xstormy16_expand_call (retval, dest, counter)
rtx retval;
rtx dest;
rtx counter;
{
rtx call, temp;
enum machine_mode mode;
if (GET_CODE (dest) != MEM)
abort ();
dest = XEXP (dest, 0);
if (! CONSTANT_P (dest)
&& GET_CODE (dest) != REG)
dest = force_reg (Pmode, dest);
if (retval == NULL)
mode = VOIDmode;
else
mode = GET_MODE (retval);
call = gen_rtx_CALL (mode, gen_rtx_MEM (FUNCTION_MODE, dest),
counter);
if (retval)
call = gen_rtx_SET (VOIDmode, retval, call);
if (! CONSTANT_P (dest))
{
temp = gen_reg_rtx (HImode);
emit_move_insn (temp, const0_rtx);
}
else
temp = const0_rtx;
call = gen_rtx_PARALLEL (VOIDmode, gen_rtvec (2, call,
gen_rtx_USE (VOIDmode, temp)));
emit_call_insn (call);
}
void
xstormy16_expand_arith (mode, code, dest, src0, src1, carry)
enum machine_mode mode;
enum rtx_code code;
rtx dest;
rtx src0;
rtx src1;
rtx carry;
{
int num_words = GET_MODE_BITSIZE (mode) / BITS_PER_WORD;
int i;
int firstloop = 1;
if (code == NEG)
{
rtx zero_reg = gen_reg_rtx (word_mode);
emit_move_insn (zero_reg, src0);
src0 = zero_reg;
}
for (i = 0; i < num_words; i++)
{
rtx w_src0, w_src1, w_dest;
rtx insn;
if (code == NEG)
w_src0 = src0;
else
w_src0 = simplify_gen_subreg (word_mode, src0, mode,
i * UNITS_PER_WORD);
w_src1 = simplify_gen_subreg (word_mode, src1, mode, i * UNITS_PER_WORD);
w_dest = simplify_gen_subreg (word_mode, dest, mode, i * UNITS_PER_WORD);
switch (code)
{
case PLUS:
if (firstloop
&& GET_CODE (w_src1) == CONST_INT && INTVAL (w_src1) == 0)
continue;
if (firstloop)
insn = gen_addchi4 (w_dest, w_src0, w_src1, carry);
else
insn = gen_addchi5 (w_dest, w_src0, w_src1, carry, carry);
break;
case NEG:
case MINUS:
case COMPARE:
if (code == COMPARE && i == num_words - 1)
{
rtx branch, sub, clobber, sub_1;
sub_1 = gen_rtx_MINUS (HImode, w_src0,
gen_rtx_ZERO_EXTEND (HImode, carry));
sub = gen_rtx_SET (VOIDmode, w_dest,
gen_rtx_MINUS (HImode, sub_1, w_src1));
clobber = gen_rtx_CLOBBER (VOIDmode, carry);
branch = gen_rtx_SET (VOIDmode, pc_rtx,
gen_rtx_IF_THEN_ELSE (VOIDmode,
gen_rtx_EQ (HImode,
sub_1,
w_src1),
pc_rtx,
pc_rtx));
insn = gen_rtx_PARALLEL (VOIDmode,
gen_rtvec (3, branch, sub, clobber));
}
else if (firstloop
&& code != COMPARE
&& GET_CODE (w_src1) == CONST_INT && INTVAL (w_src1) == 0)
continue;
else if (firstloop)
insn = gen_subchi4 (w_dest, w_src0, w_src1, carry);
else
insn = gen_subchi5 (w_dest, w_src0, w_src1, carry, carry);
break;
case IOR:
case XOR:
case AND:
if (GET_CODE (w_src1) == CONST_INT
&& INTVAL (w_src1) == -(code == AND))
continue;
insn = gen_rtx_SET (VOIDmode, w_dest, gen_rtx (code, mode,
w_src0, w_src1));
break;
case NOT:
insn = gen_rtx_SET (VOIDmode, w_dest, gen_rtx_NOT (mode, w_src0));
break;
default:
abort ();
}
firstloop = 0;
emit (insn);
}
}
int
shift_operator (op, mode)
register rtx op;
enum machine_mode mode ATTRIBUTE_UNUSED;
{
enum rtx_code code = GET_CODE (op);
return (code == ASHIFT
|| code == ASHIFTRT
|| code == LSHIFTRT);
}
const char *
xstormy16_output_shift (mode, code, x, size_r, temp)
enum machine_mode mode;
enum rtx_code code;
rtx x;
rtx size_r;
rtx temp;
{
HOST_WIDE_INT size;
const char *r0, *r1, *rt;
static char r[64];
if (GET_CODE (size_r) != CONST_INT
|| GET_CODE (x) != REG
|| mode != SImode)
abort ();
size = INTVAL (size_r) & (GET_MODE_BITSIZE (mode) - 1);
if (size == 0)
return "";
r0 = reg_names [REGNO (x)];
r1 = reg_names [REGNO (x) + 1];
if (size == 1)
{
switch (code)
{
case ASHIFT:
sprintf (r, "shl %s,#1 | rlc %s,#1", r0, r1);
break;
case ASHIFTRT:
sprintf (r, "asr %s,#1 | rrc %s,#1", r1, r0);
break;
case LSHIFTRT:
sprintf (r, "shr %s,#1 | rrc %s,#1", r1, r0);
break;
default:
abort ();
}
return r;
}
if (size == 16)
{
switch (code)
{
case ASHIFT:
sprintf (r, "mov %s,%s | mov %s,#0", r1, r0, r0);
break;
case ASHIFTRT:
sprintf (r, "mov %s,%s | asr %s,#15", r0, r1, r1);
break;
case LSHIFTRT:
sprintf (r, "mov %s,%s | mov %s,#0", r0, r1, r1);
break;
default:
abort ();
}
return r;
}
if (size > 16)
{
switch (code)
{
case ASHIFT:
sprintf (r, "mov %s,%s | mov %s,#0 | shl %s,#%d",
r1, r0, r0, r1, (int) size - 16);
break;
case ASHIFTRT:
sprintf (r, "mov %s,%s | asr %s,#15 | asr %s,#%d",
r0, r1, r1, r0, (int) size - 16);
break;
case LSHIFTRT:
sprintf (r, "mov %s,%s | mov %s,#0 | shr %s,#%d",
r0, r1, r1, r0, (int) size - 16);
break;
default:
abort ();
}
return r;
}
rt = reg_names [REGNO (temp)];
switch (code)
{
case ASHIFT:
sprintf (r,
"mov %s,%s | shl %s,#%d | shl %s,#%d | shr %s,#%d | or %s,%s",
rt, r0, r0, (int) size, r1, (int) size, rt, (int) 16-size,
r1, rt);
break;
case ASHIFTRT:
sprintf (r,
"mov %s,%s | asr %s,#%d | shr %s,#%d | shl %s,#%d | or %s,%s",
rt, r1, r1, (int) size, r0, (int) size, rt, (int) 16-size,
r0, rt);
break;
case LSHIFTRT:
sprintf (r,
"mov %s,%s | shr %s,#%d | shr %s,#%d | shl %s,#%d | or %s,%s",
rt, r1, r1, (int) size, r0, (int) size, rt, (int) 16-size,
r0, rt);
break;
default:
abort ();
}
return r;
}
int
xstormy16_interrupt_function_p ()
{
tree attributes;
if (!cfun)
return 0;
attributes = TYPE_ATTRIBUTES (TREE_TYPE (current_function_decl));
return lookup_attribute ("interrupt", attributes) != NULL_TREE;
}
#undef TARGET_ATTRIBUTE_TABLE
#define TARGET_ATTRIBUTE_TABLE xstormy16_attribute_table
static tree xstormy16_handle_interrupt_attribute PARAMS ((tree *, tree, tree, int, bool *));
static const struct attribute_spec xstormy16_attribute_table[] =
{
{ "interrupt", 0, 0, false, true, true, xstormy16_handle_interrupt_attribute },
{ NULL, 0, 0, false, false, false, NULL }
};
static tree
xstormy16_handle_interrupt_attribute (node, name, args, flags, no_add_attrs)
tree *node;
tree name;
tree args ATTRIBUTE_UNUSED;
int flags ATTRIBUTE_UNUSED;
bool *no_add_attrs;
{
if (TREE_CODE (*node) != FUNCTION_TYPE)
{
warning ("`%s' attribute only applies to functions",
IDENTIFIER_POINTER (name));
*no_add_attrs = true;
}
return NULL_TREE;
}
#undef TARGET_INIT_BUILTINS
#define TARGET_INIT_BUILTINS xstormy16_init_builtins
#undef TARGET_EXPAND_BUILTIN
#define TARGET_EXPAND_BUILTIN xstormy16_expand_builtin
static struct {
const char *name;
int md_code;
const char *arg_ops;
const char *arg_types;
} s16builtins[] = {
{ "__sdivlh", CODE_FOR_sdivlh, "rt01", "sls" },
{ "__smodlh", CODE_FOR_sdivlh, "tr01", "sls" },
{ "__udivlh", CODE_FOR_udivlh, "rt01", "SLS" },
{ "__umodlh", CODE_FOR_udivlh, "tr01", "SLS" },
{ 0, 0, 0, 0 }
};
static void
xstormy16_init_builtins ()
{
tree args, ret_type, arg;
int i, a;
ret_type = void_type_node;
for (i=0; s16builtins[i].name; i++)
{
args = void_list_node;
for (a=strlen (s16builtins[i].arg_types)-1; a>=0; a--)
{
switch (s16builtins[i].arg_types[a])
{
case 's': arg = short_integer_type_node; break;
case 'S': arg = short_unsigned_type_node; break;
case 'l': arg = long_integer_type_node; break;
case 'L': arg = long_unsigned_type_node; break;
default: abort();
}
if (a == 0)
ret_type = arg;
else
args = tree_cons (NULL_TREE, arg, args);
}
builtin_function (s16builtins[i].name,
build_function_type (ret_type, args),
i, BUILT_IN_MD, NULL, NULL);
}
}
static rtx
xstormy16_expand_builtin(exp, target, subtarget, mode, ignore)
tree exp;
rtx target;
rtx subtarget ATTRIBUTE_UNUSED;
enum machine_mode mode ATTRIBUTE_UNUSED;
int ignore ATTRIBUTE_UNUSED;
{
rtx op[10], args[10], pat, copyto[10], retval = 0;
tree fndecl, argtree;
int i, a, o, code;
fndecl = TREE_OPERAND (TREE_OPERAND (exp, 0), 0);
argtree = TREE_OPERAND (exp, 1);
i = DECL_FUNCTION_CODE (fndecl);
code = s16builtins[i].md_code;
for (a = 0; a < 10 && argtree; a++)
{
args[a] = expand_expr (TREE_VALUE (argtree), NULL_RTX, VOIDmode, 0);
argtree = TREE_CHAIN (argtree);
}
for (o = 0; s16builtins[i].arg_ops[o]; o++)
{
char ao = s16builtins[i].arg_ops[o];
char c = insn_data[code].operand[o].constraint[0];
int omode;
copyto[o] = 0;
omode = insn_data[code].operand[o].mode;
if (ao == 'r')
op[o] = target ? target : gen_reg_rtx (omode);
else if (ao == 't')
op[o] = gen_reg_rtx (omode);
else
op[o] = args[(int) hex_value (ao)];
if (! (*insn_data[code].operand[o].predicate) (op[o], GET_MODE (op[o])))
{
if (c == '+' || c == '=')
{
copyto[o] = op[o];
op[o] = gen_reg_rtx (omode);
}
else
op[o] = copy_to_mode_reg (omode, op[o]);
}
if (ao == 'r')
retval = op[o];
}
pat = GEN_FCN (code) (op[0], op[1], op[2], op[3], op[4],
op[5], op[6], op[7], op[8], op[9]);
emit_insn (pat);
for (o = 0; s16builtins[i].arg_ops[o]; o++)
if (copyto[o])
{
emit_move_insn (copyto[o], op[o]);
if (op[o] == retval)
retval = copyto[o];
}
return retval;
}
#undef TARGET_ASM_ALIGNED_HI_OP
#define TARGET_ASM_ALIGNED_HI_OP "\t.hword\t"
#undef TARGET_ASM_ALIGNED_SI_OP
#define TARGET_ASM_ALIGNED_SI_OP "\t.word\t"
#undef TARGET_ENCODE_SECTION_INFO
#define TARGET_ENCODE_SECTION_INFO xstormy16_encode_section_info
#undef TARGET_ASM_OUTPUT_MI_THUNK
#define TARGET_ASM_OUTPUT_MI_THUNK xstormy16_asm_output_mi_thunk
#undef TARGET_ASM_CAN_OUTPUT_MI_THUNK
#define TARGET_ASM_CAN_OUTPUT_MI_THUNK default_can_output_mi_thunk_no_vcall
struct gcc_target targetm = TARGET_INITIALIZER;