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C++ emit_move_insn函数代码示例

原作者: [db:作者] 来自: [db:来源] 收藏 邀请

本文整理汇总了C++中emit_move_insn函数的典型用法代码示例。如果您正苦于以下问题：C++ emit_move_insn函数的具体用法？C++ emit_move_insn怎么用？C++ emit_move_insn使用的例子？那么恭喜您, 这里精选的函数代码示例或许可以为您提供帮助。



在下文中一共展示了emit_move_insn函数的20个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于我们的系统推荐出更棒的C++代码示例。

示例1: nds32_expand_setmem_loop_v3m

static bool
nds32_expand_setmem_loop_v3m (rtx dstmem, rtx size, rtx value)
{
  rtx base_reg = copy_to_mode_reg (Pmode, XEXP (dstmem, 0));
  rtx need_align_bytes = gen_reg_rtx (SImode);
  rtx last_2_bit = gen_reg_rtx (SImode);
  rtx byte_loop_base = gen_reg_rtx (SImode);
  rtx byte_loop_size = gen_reg_rtx (SImode);
  rtx remain_size = gen_reg_rtx (SImode);
  rtx new_base_reg;
  rtx value4byte, value4doubleword;
  rtx byte_mode_size;
  rtx last_byte_loop_label = gen_label_rtx ();

  size = force_reg (SImode, size);

  value4doubleword = nds32_gen_dup_8_byte_to_double_word_value (value);
  value4byte = simplify_gen_subreg (QImode, value4doubleword, DImode,
				    subreg_lowpart_offset (QImode, DImode));

  emit_move_insn (byte_loop_size, size);
  emit_move_insn (byte_loop_base, base_reg);

  /* Jump to last byte loop if size is less than 16.  */
  emit_cmp_and_jump_insns (size, gen_int_mode (16, SImode), LE, NULL,
			   SImode, 1, last_byte_loop_label);

  /* Make sure align to 4 byte first since v3m can't unalign access.  */
  emit_insn (gen_andsi3 (last_2_bit,
			 base_reg,
			 gen_int_mode (0x3, SImode)));

  emit_insn (gen_subsi3 (need_align_bytes,
			 gen_int_mode (4, SImode),
			 last_2_bit));

  /* Align to 4 byte. */
  new_base_reg = emit_setmem_byte_loop (base_reg,
					need_align_bytes,
					value4byte,
					true);

  /* Calculate remain size. */
  emit_insn (gen_subsi3 (remain_size, size, need_align_bytes));

  /* Set memory word by word. */
  byte_mode_size = emit_setmem_doubleword_loop (new_base_reg,
						remain_size,
						value4doubleword);

  emit_move_insn (byte_loop_base, new_base_reg);
  emit_move_insn (byte_loop_size, byte_mode_size);

  emit_label (last_byte_loop_label);

  /* And set memory for remain bytes. */
  emit_setmem_byte_loop (byte_loop_base, byte_loop_size, value4byte, false);
  return true;
}
开发者ID:KangDroid，项目名称:gcc，代码行数:59，代码来源:nds32-memory-manipulation.c


示例2: nds32_expand_strlen

bool
nds32_expand_strlen (rtx result, rtx str,
		     rtx target_char, rtx align ATTRIBUTE_UNUSED)
{
  rtx base_reg, backup_base_reg;
  rtx ffb_result;
  rtx target_char_ptr, length;
  rtx loop_label, tmp;

  if (optimize_size || optimize < 3)
    return false;

  gcc_assert (MEM_P (str));
  gcc_assert (CONST_INT_P (target_char) || REG_P (target_char));

  base_reg = copy_to_mode_reg (SImode, XEXP (str, 0));
  loop_label = gen_label_rtx ();

  ffb_result = gen_reg_rtx (Pmode);
  tmp = gen_reg_rtx (SImode);
  backup_base_reg = gen_reg_rtx (SImode);

  /* Emit loop version of strlen.
       move  $backup_base, $base
     .Lloop:
       lmw.bim $tmp, [$base], $tmp, 0
       ffb   $ffb_result, $tmp, $target_char   ! is there $target_char?
       beqz  $ffb_result, .Lloop
       add   $last_char_ptr, $base, $ffb_result
       sub   $length, $last_char_ptr, $backup_base  */

  /* move  $backup_base, $base  */
  emit_move_insn (backup_base_reg, base_reg);

  /* .Lloop:  */
  emit_label (loop_label);
  /* lmw.bim $tmp, [$base], $tmp, 0  */
  emit_insn (gen_unaligned_load_update_base_w (base_reg, tmp, base_reg));

  /*  ffb   $ffb_result, $tmp, $target_char   ! is there $target_char?  */
  emit_insn (gen_unspec_ffb (ffb_result, tmp, target_char));

  /* beqz  $ffb_result, .Lloop  */
  emit_cmp_and_jump_insns (ffb_result, const0_rtx, EQ, NULL,
			   SImode, 1, loop_label);

  /* add   $target_char_ptr, $base, $ffb_result   */
  target_char_ptr = expand_binop (Pmode, add_optab, base_reg,
				ffb_result, NULL_RTX, 0, OPTAB_WIDEN);

  /* sub   $length, $target_char_ptr, $backup_base  */
  length = expand_binop (Pmode, sub_optab, target_char_ptr,
			 backup_base_reg, NULL_RTX, 0, OPTAB_WIDEN);

  emit_move_insn (result, length);

  return true;
}
开发者ID:KangDroid，项目名称:gcc，代码行数:58，代码来源:nds32-memory-manipulation.c


示例3: path

/* Generate code for transformations 3 and 4 (with MODE and OPERATION,
   operands OP1 and OP2, result TARGET, at most SUB subtractions, and
   probability of taking the optimal path(s) PROB1 and PROB2).  */
static rtx
gen_mod_subtract (enum machine_mode mode, enum rtx_code operation,
		  rtx target, rtx op1, rtx op2, int sub, int prob1, int prob2)
{
  rtx tmp, tmp1, jump;
  rtx end_label = gen_label_rtx ();
  rtx sequence;
  int i;

  start_sequence ();
  
  if (!REG_P (op2))
    {
      tmp = gen_reg_rtx (mode);
      emit_move_insn (tmp, copy_rtx (op2));
    }
  else
    tmp = op2;

  emit_move_insn (target, copy_rtx (op1));
  do_compare_rtx_and_jump (target, tmp, LTU, 0, mode, NULL_RTX,
			   NULL_RTX, end_label);

  /* Add branch probability to jump we just created.  */
  jump = get_last_insn ();
  REG_NOTES (jump) = gen_rtx_EXPR_LIST (REG_BR_PROB,
					GEN_INT (prob1), REG_NOTES (jump));

  for (i = 0; i < sub; i++)
    {
      tmp1 = expand_simple_binop (mode, MINUS, target, tmp, target,
	    			  0, OPTAB_WIDEN);
      if (tmp1 != target)
	emit_move_insn (target, tmp1);
      do_compare_rtx_and_jump (target, tmp, LTU, 0, mode, NULL_RTX,
    			       NULL_RTX, end_label);

      /* Add branch probability to jump we just created.  */
      jump = get_last_insn ();
      REG_NOTES (jump) = gen_rtx_EXPR_LIST (REG_BR_PROB,
					    GEN_INT (prob2), REG_NOTES (jump));
    }

  tmp1 = simplify_gen_binary (operation, mode, copy_rtx (target), copy_rtx (tmp));
  tmp1 = force_operand (tmp1, target);
  if (tmp1 != target)
    emit_move_insn (target, tmp1);
  
  emit_label (end_label);

  sequence = get_insns ();
  end_sequence ();
  rebuild_jump_labels (sequence);
  return sequence;
}
开发者ID:DJHartley，项目名称:iphone-dev，代码行数:58，代码来源:value-prof.c


示例4: expand_save_restore

/* Generate and emit RTL to save or restore callee save registers.  */
static void
expand_save_restore (struct lm32_frame_info *info, int op)
{
  unsigned int reg_save_mask = info->reg_save_mask;
  int regno;
  HOST_WIDE_INT offset;
  rtx insn;

  /* Callee saves are below locals and above outgoing arguments.  */
  offset = info->args_size + info->callee_size;
  for (regno = 0; regno <= 31; regno++)
    {
      if ((reg_save_mask & (1 << regno)) != 0)
	{
	  rtx offset_rtx;
	  rtx mem;
	  
	  offset_rtx = GEN_INT (offset);
	  if (satisfies_constraint_K (offset_rtx))
	    {	
              mem = gen_rtx_MEM (word_mode,
                                 gen_rtx_PLUS (Pmode,
                                               stack_pointer_rtx,
                                               offset_rtx));
            }
          else
            {
              /* r10 is caller saved so it can be used as a temp reg.  */
              rtx r10;        
               
              r10 = gen_rtx_REG (word_mode, 10);
              insn = emit_move_insn (r10, offset_rtx);
              if (op == 0)
                RTX_FRAME_RELATED_P (insn) = 1;
              insn = emit_add (r10, r10, stack_pointer_rtx);
              if (op == 0)
                RTX_FRAME_RELATED_P (insn) = 1;                
              mem = gen_rtx_MEM (word_mode, r10);
            }                                                 	    
	    	    
	  if (op == 0)
	    insn = emit_move_insn (mem, gen_rtx_REG (word_mode, regno));
	  else
	    insn = emit_move_insn (gen_rtx_REG (word_mode, regno), mem);
        
	  /* only prologue instructions which set the sp fp or save a
	     register should be marked as frame related.  */
	  if (op == 0)
	    RTX_FRAME_RELATED_P (insn) = 1;
	  offset -= UNITS_PER_WORD;
	}
    }
}
开发者ID:boomeer，项目名称:gcc，代码行数:54，代码来源:lm32.c


示例5: nds32_emit_load_store

static void
nds32_emit_load_store (rtx reg, rtx mem,
		       enum machine_mode mode,
		       int offset, bool load_p)
{
  rtx new_mem;
  new_mem = adjust_address (mem, mode, offset);
  if (load_p)
    emit_move_insn (reg, new_mem);
  else
    emit_move_insn (new_mem, reg);
}
开发者ID:KangDroid，项目名称:gcc，代码行数:12，代码来源:nds32-memory-manipulation.c


示例6: gen_mod_pow2

/* Generate code for transformation 2 (with MODE and OPERATION, operands OP1
   and OP2, result TARGET and probability of taking the optimal path PROB).  */
static rtx
gen_mod_pow2 (enum machine_mode mode, enum rtx_code operation, rtx target,
	      rtx op1, rtx op2, int prob)
{
  rtx tmp, tmp1, tmp2, tmp3, jump;
  rtx neq_label = gen_label_rtx ();
  rtx end_label = gen_label_rtx ();
  rtx sequence;

  start_sequence ();
  
  if (!REG_P (op2))
    {
      tmp = gen_reg_rtx (mode);
      emit_move_insn (tmp, copy_rtx (op2));
    }
  else
    tmp = op2;

  tmp1 = expand_simple_binop (mode, PLUS, tmp, constm1_rtx, NULL_RTX,
			      0, OPTAB_WIDEN);
  tmp2 = expand_simple_binop (mode, AND, tmp, tmp1, NULL_RTX,
			      0, OPTAB_WIDEN);
  do_compare_rtx_and_jump (tmp2, const0_rtx, NE, 0, mode, NULL_RTX,
			   NULL_RTX, neq_label);

  /* Add branch probability to jump we just created.  */
  jump = get_last_insn ();
  REG_NOTES (jump) = gen_rtx_EXPR_LIST (REG_BR_PROB,
					GEN_INT (REG_BR_PROB_BASE - prob),
					REG_NOTES (jump));

  tmp3 = expand_simple_binop (mode, AND, op1, tmp1, target,
			      0, OPTAB_WIDEN);
  if (tmp3 != target)
    emit_move_insn (copy_rtx (target), tmp3);
  emit_jump_insn (gen_jump (end_label));
  emit_barrier ();

  emit_label (neq_label);
  tmp1 = simplify_gen_binary (operation, mode, copy_rtx (op1), copy_rtx (tmp));
  tmp1 = force_operand (tmp1, target);
  if (tmp1 != target)
    emit_move_insn (target, tmp1);
  
  emit_label (end_label);

  sequence = get_insns ();
  end_sequence ();
  rebuild_jump_labels (sequence);
  return sequence;
}
开发者ID:DJHartley，项目名称:iphone-dev，代码行数:54，代码来源:value-prof.c


示例7: gen_divmod_fixed_value

/* Generate code for transformation 1 (with MODE and OPERATION, operands OP1
   and OP2, whose value is expected to be VALUE, result TARGET and
   probability of taking the optimal path PROB).  */
static rtx
gen_divmod_fixed_value (enum machine_mode mode, enum rtx_code operation,
			rtx target, rtx op1, rtx op2, gcov_type value,
			int prob)
{
  rtx tmp, tmp1, jump;
  rtx neq_label = gen_label_rtx ();
  rtx end_label = gen_label_rtx ();
  rtx sequence;

  start_sequence ();
  
  if (!REG_P (op2))
    {
      tmp = gen_reg_rtx (mode);
      emit_move_insn (tmp, copy_rtx (op2));
    }
  else
    tmp = op2;

  do_compare_rtx_and_jump (tmp, GEN_INT (value), NE, 0, mode, NULL_RTX,
			   NULL_RTX, neq_label);

  /* Add branch probability to jump we just created.  */
  jump = get_last_insn ();
  REG_NOTES (jump) = gen_rtx_EXPR_LIST (REG_BR_PROB,
					GEN_INT (REG_BR_PROB_BASE - prob),
					REG_NOTES (jump));

  tmp1 = simplify_gen_binary (operation, mode,
			      copy_rtx (op1), GEN_INT (value));
  tmp1 = force_operand (tmp1, target);
  if (tmp1 != target)
    emit_move_insn (copy_rtx (target), copy_rtx (tmp1));

  emit_jump_insn (gen_jump (end_label));
  emit_barrier ();

  emit_label (neq_label);
  tmp1 = simplify_gen_binary (operation, mode,
			      copy_rtx (op1), copy_rtx (tmp));
  tmp1 = force_operand (tmp1, target);
  if (tmp1 != target)
    emit_move_insn (copy_rtx (target), copy_rtx (tmp1));
  
  emit_label (end_label);

  sequence = get_insns ();
  end_sequence ();
  rebuild_jump_labels (sequence);
  return sequence;
}
开发者ID:DJHartley，项目名称:iphone-dev，代码行数:55，代码来源:value-prof.c


示例8: moxie_trampoline_init

static void
moxie_trampoline_init (rtx m_tramp, tree fndecl, rtx chain_value)
{
  rtx mem, fnaddr = XEXP (DECL_RTL (fndecl), 0);

  emit_block_move (m_tramp, assemble_trampoline_template (),
		   GEN_INT (TRAMPOLINE_SIZE), BLOCK_OP_NORMAL);

  mem = adjust_address (m_tramp, SImode, 4);
  emit_move_insn (mem, chain_value);
  mem = adjust_address (m_tramp, SImode, 16);
  emit_move_insn (mem, fnaddr);
}
开发者ID:chinabin，项目名称:gcc-tiny，代码行数:13，代码来源:moxie.c


示例9: lm32_block_move_inline

static void
lm32_block_move_inline (rtx dest, rtx src, HOST_WIDE_INT length, HOST_WIDE_INT alignment)
{
    HOST_WIDE_INT offset, delta;
    unsigned HOST_WIDE_INT bits;
    int i;
    enum machine_mode mode;
    rtx *regs;

    /* Work out how many bits to move at a time.  */
    switch (alignment)
    {
    case 1:
        bits = 8;
        break;
    case 2:
        bits = 16;
        break;
    case 4:
        bits = 32;
        break;
    default:
        abort ();
    }

    mode = mode_for_size (bits, MODE_INT, 0);
    delta = bits / BITS_PER_UNIT;

    /* Allocate a buffer for the temporary registers.  */
    regs = alloca (sizeof (rtx) * length / delta);

    /* Load as many BITS-sized chunks as possible.  */
    for (offset = 0, i = 0; offset + delta <= length; offset += delta, i++)
    {
        regs[i] = gen_reg_rtx (mode);
        emit_move_insn (regs[i], adjust_address (src, mode, offset));
    }

    /* Copy the chunks to the destination.  */
    for (offset = 0, i = 0; offset + delta <= length; offset += delta, i++)
        emit_move_insn (adjust_address (dest, mode, offset), regs[i]);

    /* Mop up any left-over bytes.  */
    if (offset < length)
    {
        src = adjust_address (src, BLKmode, offset);
        dest = adjust_address (dest, BLKmode, offset);
        move_by_pieces (dest, src, length - offset,
                        MIN (MEM_ALIGN (src), MEM_ALIGN (dest)), 0);
    }
}
开发者ID:FullMentalPanic，项目名称:RTEMS_NEW_TOOL_CHAIN，代码行数:51，代码来源:lm32.c


示例10: stack_adjust

static void
stack_adjust (HOST_WIDE_INT amount)
{
  rtx insn;

  if (!IN_RANGE (amount, -32776, 32768))
    {
      /* r10 is caller saved so it can be used as a temp reg.  */
      rtx r10;
      r10 = gen_rtx_REG (word_mode, 10);
      insn = emit_move_insn (r10, GEN_INT (amount));
      if (amount < 0)
	RTX_FRAME_RELATED_P (insn) = 1;
      insn = emit_add (stack_pointer_rtx, stack_pointer_rtx, r10);
      if (amount < 0)
	RTX_FRAME_RELATED_P (insn) = 1;
    }
  else
    {
      insn = emit_add (stack_pointer_rtx,
		       stack_pointer_rtx, GEN_INT (amount));
      if (amount < 0)
	RTX_FRAME_RELATED_P (insn) = 1;
    }
}
开发者ID:boomeer，项目名称:gcc，代码行数:25，代码来源:lm32.c


示例11: crx_expand_epilogue

void
crx_expand_epilogue (void)
{
  rtx return_reg;

  /* Nonzero if we need to return and pop only RA. This will generate a
   * different insn. This differentiate is for the peepholes for call as last
   * statement in function. */
  int only_popret_RA = (save_regs[RETURN_ADDRESS_REGNUM]
			&& (sum_regs == UNITS_PER_WORD));

  /* Return register.  */
  return_reg = gen_rtx_REG (Pmode, RETURN_ADDRESS_REGNUM);

  if (frame_pointer_needed)
    /* Restore the stack pointer with the frame pointers value */
    emit_move_insn (stack_pointer_rtx, frame_pointer_rtx);

  if (size_for_adjusting_sp > 0)
    emit_insn (gen_addsi3 (stack_pointer_rtx, stack_pointer_rtx,
			   GEN_INT (size_for_adjusting_sp)));

  if (crx_interrupt_function_p ())
    emit_jump_insn (gen_interrupt_return ());
  else if (last_reg_to_save == -1)
    /* Nothing to pop */
    /* Don't output jump for interrupt routine, only retx.  */
    emit_jump_insn (gen_indirect_jump_return ());
  else if (only_popret_RA)
    emit_jump_insn (gen_popret_RA_return ());
  else
    emit_jump_insn (gen_pop_and_popret_return (GEN_INT (sum_regs)));
}
开发者ID:Akheon23，项目名称:chromecast-mirrored-source.toolchain，代码行数:33，代码来源:crx.c


示例12: moxie_setup_incoming_varargs

static void
moxie_setup_incoming_varargs (cumulative_args_t cum_v,
			      machine_mode mode ATTRIBUTE_UNUSED,
			      tree type ATTRIBUTE_UNUSED,
			      int *pretend_size, int no_rtl)
{
  CUMULATIVE_ARGS *cum = get_cumulative_args (cum_v);
  int regno;
  int regs = 8 - *cum;
  
  *pretend_size = regs < 0 ? 0 : GET_MODE_SIZE (SImode) * regs;
  
  if (no_rtl)
    return;
  
  for (regno = *cum; regno < 8; regno++)
    {
      rtx reg = gen_rtx_REG (SImode, regno);
      rtx slot = gen_rtx_PLUS (Pmode,
			       gen_rtx_REG (SImode, ARG_POINTER_REGNUM),
			       GEN_INT (UNITS_PER_WORD * (3 + (regno-2))));
      
      emit_move_insn (gen_rtx_MEM (SImode, slot), reg);
    }
}
开发者ID:chinabin，项目名称:gcc-tiny，代码行数:25，代码来源:moxie.c


示例13: emit_setmem_doubleword_loop

static rtx
emit_setmem_doubleword_loop (rtx itr, rtx size, rtx value)
{
  rtx word_mode_label = gen_label_rtx ();
  rtx word_mode_end_label = gen_label_rtx ();
  rtx byte_mode_size = gen_reg_rtx (SImode);
  rtx byte_mode_size_tmp = gen_reg_rtx (SImode);
  rtx word_mode_end = gen_reg_rtx (SImode);
  rtx size_for_word = gen_reg_rtx (SImode);

  /* and     $size_for_word, $size, #~0x7  */
  size_for_word = expand_binop (SImode, and_optab, size,
				gen_int_mode (~0x7, SImode),
				NULL_RTX, 0, OPTAB_WIDEN);

  emit_move_insn (byte_mode_size, size);

  /* beqz    $size_for_word, .Lbyte_mode_entry  */
  emit_cmp_and_jump_insns (size_for_word, const0_rtx, EQ, NULL,
			   SImode, 1, word_mode_end_label);
  /* add     $word_mode_end, $dst, $size_for_word  */
  word_mode_end = expand_binop (Pmode, add_optab, itr, size_for_word,
				NULL_RTX, 0, OPTAB_WIDEN);

  /* andi    $byte_mode_size, $size, 0x7  */
  byte_mode_size_tmp = expand_binop (SImode, and_optab, size, GEN_INT (0x7),
				     NULL_RTX, 0, OPTAB_WIDEN);

  emit_move_insn (byte_mode_size, byte_mode_size_tmp);

  /* .Lword_mode:  */
  emit_label (word_mode_label);
  /*   ! word-mode set loop
       smw.bim $value4word, [$dst_itr], $value4word, 0
       bne     $word_mode_end, $dst_itr, .Lword_mode  */
  emit_insn (gen_unaligned_store_update_base_dw (itr,
						 itr,
						 value));
  emit_cmp_and_jump_insns (word_mode_end, itr, NE, NULL,
			   Pmode, 1, word_mode_label);

  emit_label (word_mode_end_label);

  return byte_mode_size;
}
开发者ID:KangDroid，项目名称:gcc，代码行数:45，代码来源:nds32-memory-manipulation.c


示例14: nds32_gen_dup_4_byte_to_word_value_aux

static rtx
nds32_gen_dup_4_byte_to_word_value_aux (rtx value, rtx value4word)
{
  gcc_assert (GET_MODE (value) == QImode || CONST_INT_P (value));

  if (CONST_INT_P (value))
    {
      unsigned HOST_WIDE_INT val = UINTVAL (value) & GET_MODE_MASK(QImode);
      rtx new_val = gen_int_mode (val | (val << 8)
				  | (val << 16) | (val << 24), SImode);
      /* Just calculate at here if it's constant value.  */
      emit_move_insn (value4word, new_val);
    }
  else
    {
      if (NDS32_EXT_DSP_P ())
	{
	  /* ! prepare word
	     insb    $tmp, $value, 1         ! $tmp  <- 0x0000abab
	     pkbb16  $tmp6, $tmp2, $tmp2   ! $value4word  <- 0xabababab */
	  rtx tmp = gen_reg_rtx (SImode);

	  convert_move (tmp, value, true);

	  emit_insn (
	    gen_insvsi_internal (tmp, gen_int_mode (0x8, SImode), tmp));

	  emit_insn (gen_pkbbsi_1 (value4word, tmp, tmp));
	}
      else
	{
	  /* ! prepare word
	     andi    $tmp1, $value, 0xff       ! $tmp1  <- 0x000000ab
	     slli    $tmp2, $tmp1, 8           ! $tmp2  <- 0x0000ab00
	     or      $tmp3, $tmp1, $tmp2       ! $tmp3  <- 0x0000abab
	     slli    $tmp4, $tmp3, 16          ! $tmp4  <- 0xabab0000
	     or      $val4word, $tmp3, $tmp4   ! $value4word  <- 0xabababab  */

	  rtx tmp1, tmp2, tmp3, tmp4;
	  tmp1 = expand_binop (SImode, and_optab, value,
			       gen_int_mode (0xff, SImode),
			       NULL_RTX, 0, OPTAB_WIDEN);
	  tmp2 = expand_binop (SImode, ashl_optab, tmp1,
			       gen_int_mode (8, SImode),
			       NULL_RTX, 0, OPTAB_WIDEN);
	  tmp3 = expand_binop (SImode, ior_optab, tmp1, tmp2,
			       NULL_RTX, 0, OPTAB_WIDEN);
	  tmp4 = expand_binop (SImode, ashl_optab, tmp3,
			       gen_int_mode (16, SImode),
			       NULL_RTX, 0, OPTAB_WIDEN);

	  emit_insn (gen_iorsi3 (value4word, tmp3, tmp4));
	}
    }

  return value4word;
}
开发者ID:KangDroid，项目名称:gcc，代码行数:57，代码来源:nds32-memory-manipulation.c


示例15: crx_expand_movmem_single

void crx_expand_movmem_single (rtx src, rtx srcbase, rtx dst, rtx dstbase,
			       rtx tmp_reg, unsigned HOST_WIDE_INT *offset_p)
{
  rtx addr, mem;
  unsigned HOST_WIDE_INT offset = *offset_p;

  /* Load */
  addr = plus_constant (src, offset);
  mem = adjust_automodify_address (srcbase, SImode, addr, offset);
  emit_move_insn (tmp_reg, mem);

  /* Store */
  addr = plus_constant (dst, offset);
  mem = adjust_automodify_address (dstbase, SImode, addr, offset);
  emit_move_insn (mem, tmp_reg);

  *offset_p = offset + 4;
}
开发者ID:Akheon23，项目名称:chromecast-mirrored-source.toolchain，代码行数:18，代码来源:crx.c


示例16: nds32_gen_dup_8_byte_to_double_word_value

static rtx
nds32_gen_dup_8_byte_to_double_word_value (rtx value)
{
  rtx value4doubleword = gen_reg_rtx (DImode);

  nds32_gen_dup_4_byte_to_word_value_aux (
    value, nds32_di_low_part_subreg(value4doubleword));

  emit_move_insn (nds32_di_high_part_subreg(value4doubleword),
		  nds32_di_low_part_subreg(value4doubleword));
  return value4doubleword;
}
开发者ID:KangDroid，项目名称:gcc，代码行数:12，代码来源:nds32-memory-manipulation.c


示例17: insert_move_insn_before

static rtx
insert_move_insn_before (rtx next_insn, rtx dest_reg, rtx src_reg)
{
  rtx insns;

  start_sequence ();
  emit_move_insn (dest_reg, src_reg);
  insns = get_insns ();
  end_sequence ();
  emit_insn_before (insns, next_insn);
  return insns;
}
开发者ID:nevinhappy，项目名称:gcc，代码行数:12，代码来源:auto-inc-dec.c


示例18: nds32_emit_post_inc_load_store

static void
nds32_emit_post_inc_load_store (rtx reg, rtx base_reg,
				enum machine_mode mode,
				bool load_p)
{
  gcc_assert (GET_MODE (reg) == mode);
  gcc_assert (GET_MODE (base_reg) == Pmode);

  /* Do not gen (set (reg) (mem (post_inc (reg)))) directly here since it may
     not recognize by gcc, so let gcc combine it at auto_inc_dec pass.  */
  if (load_p)
    emit_move_insn (reg,
		    gen_rtx_MEM (mode,
				 base_reg));
  else
    emit_move_insn (gen_rtx_MEM (mode,
				 base_reg),
		    reg);

  emit_move_insn (base_reg,
		  plus_constant(Pmode, base_reg, GET_MODE_SIZE (mode)));
}
开发者ID:KangDroid，项目名称:gcc，代码行数:22，代码来源:nds32-memory-manipulation.c


示例19: expand_save_restore

/* Generate and emit RTL to save or restore callee save registers */
static void
expand_save_restore (struct lm32_frame_info *info, int op)
{
    unsigned int reg_save_mask = info->reg_save_mask;
    int regno;
    HOST_WIDE_INT offset;
    rtx insn;

    /* Callee saves are below locals and above outgoing arguments */
    offset = info->args_size + info->callee_size;
    for (regno = 0; regno <= 31; regno++)
    {
        if ((reg_save_mask & (1 << regno)) != 0)
        {
            if (op == 0)
            {
                insn = emit_move_insn (gen_rtx_MEM (word_mode,
                                                    gen_rtx_PLUS (Pmode,
                                                            stack_pointer_rtx,
                                                            GEN_INT (offset))),
                                       gen_rtx_REG (word_mode, regno));
            }
            else
            {
                insn = emit_move_insn (gen_rtx_REG (word_mode, regno),
                                       gen_rtx_MEM (word_mode,
                                                    gen_rtx_PLUS (Pmode,
                                                            stack_pointer_rtx,
                                                            GEN_INT (offset))));
            }

            /* only prologue instructions which set the sp fp or save a
               register should be marked as frame related */
            if (op==0)
                RTX_FRAME_RELATED_P (insn) = 1;
            offset -= UNITS_PER_WORD;
        }
    }
}
开发者ID:FullMentalPanic，项目名称:RTEMS_NEW_TOOL_CHAIN，代码行数:40，代码来源:lm32.c


示例20: moxie_expand_prologue

void
moxie_expand_prologue (void)
{
  int regno;
  rtx insn;

  moxie_compute_frame ();

  if (flag_stack_usage_info)
    current_function_static_stack_size = cfun->machine->size_for_adjusting_sp;

  /* Save callee-saved registers.  */
  for (regno = 0; regno < FIRST_PSEUDO_REGISTER; regno++)
    {
      if (!fixed_regs[regno] && df_regs_ever_live_p (regno) && !call_used_regs[regno])
	{
	  insn = emit_insn (gen_movsi_push (gen_rtx_REG (Pmode, regno)));
	  RTX_FRAME_RELATED_P (insn) = 1;
	}
    }

  if (cfun->machine->size_for_adjusting_sp > 0)
    {
      int i = cfun->machine->size_for_adjusting_sp; 
      while ((i >= 255) && (i <= 510))
	{
	  insn = emit_insn (gen_subsi3 (stack_pointer_rtx, 
					stack_pointer_rtx, 
					GEN_INT (255)));
	  RTX_FRAME_RELATED_P (insn) = 1;
	  i -= 255;
	}
      if (i <= 255)
	{
	  insn = emit_insn (gen_subsi3 (stack_pointer_rtx, 
					stack_pointer_rtx, 
					GEN_INT (i)));
	  RTX_FRAME_RELATED_P (insn) = 1;
	}
      else
	{
	  rtx reg = gen_rtx_REG (SImode, MOXIE_R12);
	  insn = emit_move_insn (reg, GEN_INT (i));
	  RTX_FRAME_RELATED_P (insn) = 1;
	  insn = emit_insn (gen_subsi3 (stack_pointer_rtx, 
					stack_pointer_rtx, 
					reg));
	  RTX_FRAME_RELATED_P (insn) = 1;
	}
    }
}
开发者ID:chinabin，项目名称:gcc-tiny，代码行数:51，代码来源:moxie.c



注：本文中的emit_move_insn函数示例由纯净天空整理自Github/MSDocs等源码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。

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