annotate 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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rev |
line source |
1
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1 // Copyright (c) 1999-2002 by Digital Mars
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2 // All Rights Reserved
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3 // written by Walter Bright
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4 // www.digitalmars.com
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5
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6 struct GCStats
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7 {
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8 size_t poolsize; // total size of pool
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9 size_t usedsize; // bytes allocated
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10 size_t freeblocks; // number of blocks marked FREE
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11 size_t freelistsize; // total of memory on free lists
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12 size_t pageblocks; // number of blocks marked PAGE
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13 }
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14
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15
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