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view dmd2/hdrgen.h @ 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 | f04dde6e882c |
children |
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// Compiler implementation of the D programming language // Copyright (c) 1999-2006 by Digital Mars // All Rights Reserved // initial header generation implementation by Dave Fladebo // http://www.digitalmars.com // License for redistribution is by either the Artistic License // in artistic.txt, or the GNU General Public License in gnu.txt. // See the included readme.txt for details. struct HdrGenState { int hdrgen; // 1 if generating header file int ddoc; // 1 if generating Ddoc file int console; // 1 if writing to console int tpltMember; int inCallExp; int inPtrExp; int inSlcExp; int inDotExp; int inBinExp; int inArrExp; int emitInst; struct { int init; int decl; } FLinit; HdrGenState() { memset(this, 0, sizeof(HdrGenState)); } };