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[rustc.git] / src / librustc_trans / mir / drop.rs
1 // Copyright 2012-2014 The Rust Project Developers. See the COPYRIGHT
2 // file at the top-level directory of this distribution and at
3 // http://rust-lang.org/COPYRIGHT.
4 //
5 // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
6 // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
7 // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
8 // option. This file may not be copied, modified, or distributed
9 // except according to those terms.
10
11 use llvm::ValueRef;
12 use rustc::ty::Ty;
13 use adt;
14 use base;
15 use common::{self, BlockAndBuilder};
16 use machine;
17 use type_of;
18 use type_::Type;
19
20 pub fn drop_fill<'bcx, 'tcx>(bcx: &BlockAndBuilder<'bcx, 'tcx>, value: ValueRef, ty: Ty<'tcx>) {
21 let llty = type_of::type_of(bcx.ccx(), ty);
22 let llptr = bcx.pointercast(value, Type::i8(bcx.ccx()).ptr_to());
23 let filling = common::C_u8(bcx.ccx(), adt::DTOR_DONE);
24 let size = machine::llsize_of(bcx.ccx(), llty);
25 let align = common::C_u32(bcx.ccx(), machine::llalign_of_min(bcx.ccx(), llty));
26 base::call_memset(&bcx, llptr, filling, size, align, false);
27 }