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;
}