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Split out and improve trans_init_box.

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This commit is contained in:
Graydon Hoare 2010-07-01 19:29:03 -07:00
parent 7df949af40
commit 314af0a44b
1 changed files with 18 additions and 8 deletions
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26
src/boot/me/trans.ml
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@ -2189,6 +2189,23 @@ let trans_visitor
atoms;
mov (get_element_ptr vec Abi.vec_elt_fill) (Il.Cell fill);
and trans_init_box (dst:Ast.lval) (src:Ast.atom) : unit =
let src_op = trans_atom src in
let src_cell = Il.Mem (force_to_mem src_op) in
let src_ty = simplified_ty (atom_type cx src) in
let dst_sloti = lval_base_to_slot cx dst in
let dst_cell = cell_of_block_slot dst_sloti.id in
let dst_cell = deref_slot true dst_cell dst_sloti.node in
let dst_ty = slot_ty dst_sloti.node in
let (dst_cell, dst_ty) =
deref_ty DEREF_one_box true dst_cell dst_ty
in
let _ = assert (dst_ty = src_ty) in
trans_copy_ty (get_ty_params_of_current_frame()) true
dst_cell dst_ty src_cell src_ty None
and get_dynamic_tydesc (idopt:node_id option) (t:Ast.ty) : Il.cell =
let td = next_vreg_cell Il.voidptr_t in
let root_desc =
@ -4244,14 +4261,7 @@ let trans_visitor
end
| Ast.STMT_init_box (dst, src) ->
let sloti = lval_base_to_slot cx dst in
let dst_cell = cell_of_block_slot sloti.id in
let dst_cell = deref_slot true dst_cell sloti.node in
let ty = slot_ty sloti.node in
let (dst_cell, ty) = deref_ty DEREF_one_box true dst_cell ty in
let src_cell = need_cell (trans_atom src) in
trans_copy_ty (get_ty_params_of_current_frame()) true
dst_cell ty src_cell ty None;
trans_init_box dst src
| Ast.STMT_block block ->
trans_block block