Mercurial > projects > ldc
view dmd2/root/async.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 | 638d16625da2 |
children |
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// Copyright (c) 2009-2009 by Digital Mars // All Rights Reserved // written by Walter Bright // 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. #ifndef ASYNC_H #define ASYNC_H #if __DMC__ #pragma once #endif /******************* * Simple interface to read files asynchronously in another * thread. */ struct AsyncRead { static AsyncRead *create(size_t nfiles); void addFile(File *file); void start(); int read(size_t i); static void dispose(AsyncRead *); }; #endif