// 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 or the MIT license // , 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); } }