view dmd/hdrgen.h @ 1491:360a8e8eea51

Teach stack promotion to walk the CFG when a potential reuse of an allocation is found to see if it can actually happen instead of just assuming it will. This allows it to catch cases like {{{ int i; Foo f; while (cond(i)) f = new Foo(i++); return f.value; }}} where it previously wouldn't because a phi using the allocation would appear in the condition block to propagate it to the use after the loop.
author Frits van Bommel <fvbommel wxs.nl>
date Thu, 11 Jun 2009 02:04:44 +0200
parents c53b6e3fe49a
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)); }
};