Mercurial > projects > ldc
view tools/binding/llvm/util.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 | 1ba61de8796b |
children |
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// Written in the D programming language by Tomas Lindquist Olsen 2008 // Binding of llvm.c.Core values for D. // // This file is distributed under the University of Illinois Open Source // License. See LICENSE.TXT for details. // module llvm.util; //we need <cstring> version(Tango) { import tango.stdc.string; } else { import std.c.string; } /// char[] from_stringz(char* p) { if (p is null) return ""; return p[0..strlen(p)]; } /// char* to_stringz(char[] s) { return (s~\0).ptr; }