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Some calling convention work for x86-64: - Implement x86-64 extern(C), hopefully correctly. - Tried to be a bit smarter about extern(D) while I was there. Interestingly, this code seems to be generating more efficient code than gcc and llvm-gcc in some edge cases, like returning a `{ [7 x i8] }` loaded from a stack slot from an extern(C) function. (gcc generates 7 1-byte loads, while this code generates a 4-byte, a 2-byte and a 1-byte load) I also added some changes to make sure structs being returned from functions or passed in as parameters are stored in memory where the rest of the backend seems to expect them to be. These should be removed when support for first-class aggregates improves.
author Frits van Bommel <fvbommel wxs.nl>
date Fri, 06 Mar 2009 16:00:47 +0100
parents f04dde6e882c
children 638d16625da2
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		The D Programming Language
		Compiler Front End Source
		Copyright (c) 1999-2002, by Digital Mars
		www.digitalmars.com
		All Rights Reserved


This is the source code to the front end Digital Mars D compiler.
It covers the lexical analysis, parsing, and semantic analysis
of the D Programming Language defined in the documents at
www.digitalmars.com/d/

The optimizer, code generator, and object file generator are not part
of this source, hence the source does not currently constitute a complete,
compilable program. However, many people have expressed a strong interested
in producing a D compiler with the GNU compiler sources. This release should
enable that.

These sources are free, they are redistributable and modifiable
under the terms of the GNU General Public License (attached as gpl.txt),
or the Artistic License (attached as artistic.txt).

It does not apply to anything else distributed by Digital Mars,
including D compiler executables.

-Walter Bright