gcc-8.3/gcc/riscv_parse_arch_string()

参照元†

説明†

• パス: gcc-8.3/gcc/common/config/riscv/riscv-common.c

• FIXME: これは何？
  • 説明

引数†

• const char *isa
• int *flags
• location_t loc
  • gcc-8.3/gcc/location_t

返り値†

• なし

参考†

実装†

/* Parse a RISC-V ISA string into an option mask.  Must clear or set all arch
   dependent mask bits, in case more than one -march string is passed.  */

static void
riscv_parse_arch_string (const char *isa, int *flags, location_t loc)
{
  riscv_subset_list *subset_list;
  subset_list = riscv_subset_list::parse (isa, loc);
  if (!subset_list)
    return;

• • gcc-8.3/gcc/riscv_subset_list
  • gcc-8.3/gcc/riscv_subset_list/parse()

  if (subset_list->xlen () == 32)
    *flags &= ~MASK_64BIT;
  else if (subset_list->xlen () == 64)
    *flags |= MASK_64BIT;

  *flags &= ~MASK_RVE;
  if (subset_list->lookup ("e"))
    *flags |= MASK_RVE;

  *flags &= ~MASK_MUL;
  if (subset_list->lookup ("m"))
    *flags |= MASK_MUL;

  *flags &= ~MASK_ATOMIC;
  if (subset_list->lookup ("a"))
    *flags |= MASK_ATOMIC;

  *flags &= ~(MASK_HARD_FLOAT | MASK_DOUBLE_FLOAT);
  if (subset_list->lookup ("f"))
    *flags |= MASK_HARD_FLOAT;

  if (subset_list->lookup ("d"))
    *flags |= MASK_DOUBLE_FLOAT;

  *flags &= ~MASK_RVC;
  if (subset_list->lookup ("c"))
    *flags |= MASK_RVC;

  if (current_subset_list)
    delete current_subset_list;

  current_subset_list = subset_list;
}

• • gcc-8.3/gcc/current_subset_list(global)
  • gcc-8.3/gcc/subset_list/xlen()
  • gcc-8.3/gcc/subset_list/lookup()

コメント†

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• katsuhiro

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