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view dmd/readme.txt @ 1275:bedf0bfb8fdb
Implement first D-specific optimization pass: -simplify-drtcalls.
It uses the machinery of the standard -simplify-libcalls pass, but optimizes
calls to the D runtime instead of calls to C libraries.
At the moment, these optimizations are implemented by this pass:
- Avoid the runtime call for `arr.length = newlen` if it can determine that
the new length isn't longer than the old one.
- Ditto for `cast(T[]) arr` if it will clearly always succeed.
(e.g. if the length of the original array is zero, or if the old element
size is a multiple of the new element size)
author | Frits van Bommel <fvbommel wxs.nl> |
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date | Tue, 28 Apr 2009 21:58:06 +0200 |
parents | c53b6e3fe49a |
children |
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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