Mercurial > projects > ldc
view lphobos/gcstats.d @ 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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// Copyright (c) 1999-2002 by Digital Mars // All Rights Reserved // written by Walter Bright // www.digitalmars.com struct GCStats { size_t poolsize; // total size of pool size_t usedsize; // bytes allocated size_t freeblocks; // number of blocks marked FREE size_t freelistsize; // total of memory on free lists size_t pageblocks; // number of blocks marked PAGE }