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annotate dmd/hdrgen.h @ 1491:360a8e8eea51

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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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2 // Compiler implementation of the D programming language
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3 // Copyright (c) 1999-2006 by Digital Mars
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4 // All Rights Reserved
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5 // initial header generation implementation by Dave Fladebo
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6 // http://www.digitalmars.com
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7 // License for redistribution is by either the Artistic License
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8 // in artistic.txt, or the GNU General Public License in gnu.txt.
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9 // See the included readme.txt for details.
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12 struct HdrGenState
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13 {
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14 int hdrgen; // 1 if generating header file
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15 int ddoc; // 1 if generating Ddoc file
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16 int console; // 1 if writing to console
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17 int tpltMember;
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18 int inCallExp;
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19 int inPtrExp;
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20 int inSlcExp;
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21 int inDotExp;
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22 int inBinExp;
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23 int inArrExp;
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24 int emitInst;
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25 struct
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26 {
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27 int init;
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28 int decl;
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29 } FLinit;
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31 HdrGenState() { memset(this, 0, sizeof(HdrGenState)); }
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32 };
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