Mercurial > projects > ldc
view lphobos/internal/mem.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 | 4648206ca213 |
children |
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line source
module internal.mem; extern(C): void* realloc(void*,size_t); void free(void*); void* _d_realloc(void* ptr, size_t n) { return realloc(ptr, n); } void _d_free(void* ptr) { free(ptr); }