gcc-8.3/gcc/ira_create_new_reg()

参照元†

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説明†

パス: gcc-8.3/gcc/ira-emit.c

FIXME: これは何？
- 説明

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引数†

rtx original_reg
- gcc-8.3/gcc/rtx

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返り値†

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参考†

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実装†

/* Create and return new pseudo-register with the same attributes as
   ORIGINAL_REG.  */
rtx
ira_create_new_reg (rtx original_reg)
{
  rtx new_reg;

- gcc-8.3/gcc/rtx

  new_reg = gen_reg_rtx (GET_MODE (original_reg));
  ORIGINAL_REGNO (new_reg) = ORIGINAL_REGNO (original_reg);
  REG_USERVAR_P (new_reg) = REG_USERVAR_P (original_reg);
  REG_POINTER (new_reg) = REG_POINTER (original_reg);
  REG_ATTRS (new_reg) = REG_ATTRS (original_reg);

  if (internal_flag_ira_verbose > 3 && ira_dump_file != NULL)
    fprintf (ira_dump_file, "      Creating newreg=%i from oldreg=%i\n",
	     REGNO (new_reg), REGNO (original_reg));
  ira_expand_reg_equiv ();
  return new_reg;
}