| // Copyright 2013 The Rust Project Developers. See the COPYRIGHT |
| // file at the top-level directory of this distribution and at |
| // http://rust-lang.org/COPYRIGHT. |
| // |
| // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or |
| // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license |
| // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your |
| // option. This file may not be copied, modified, or distributed |
| // except according to those terms. |
| |
| use llvm::*; |
| use super::common::*; |
| use super::machine::*; |
| use abi::{ArgType, FnType}; |
| use type_::Type; |
| |
| // Win64 ABI: http://msdn.microsoft.com/en-us/library/zthk2dkh.aspx |
| |
| pub fn compute_abi_info(ccx: &CrateContext, fty: &mut FnType) { |
| let fixup = |a: &mut ArgType| { |
| if a.ty.kind() == Struct { |
| match llsize_of_alloc(ccx, a.ty) { |
| 1 => a.cast = Some(Type::i8(ccx)), |
| 2 => a.cast = Some(Type::i16(ccx)), |
| 4 => a.cast = Some(Type::i32(ccx)), |
| 8 => a.cast = Some(Type::i64(ccx)), |
| _ => a.make_indirect(ccx) |
| } |
| } else { |
| a.extend_integer_width_to(32); |
| } |
| }; |
| |
| if !fty.ret.is_ignore() { |
| fixup(&mut fty.ret); |
| } |
| for arg in &mut fty.args { |
| if arg.is_ignore() { continue; } |
| fixup(arg); |
| } |
| } |
