view gen/configfile.h @ 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 a048f31bf9f6
children
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#ifndef LDC_CONF_CONFIGFILE_H
#define LDC_CONF_CONFIGFILE_H

#include <vector>
#include <string>

namespace libconfig
{
    class Config;
}

class ConfigFile
{
public:
    typedef std::vector<const char*>    s_vector;
    typedef s_vector::iterator          s_iterator;

public:
    ConfigFile();
    ~ConfigFile();

    bool read(const char* argv0, void* mainAddr, const char* filename);

    s_iterator switches_begin()   { return switches.begin(); }
    s_iterator switches_end()     { return switches.end(); }

    const std::string& path()     { return pathstr; }

private:
    bool locate(llvm::sys::Path& path, const char* argv0, void* mainAddr, const char* filename);

    libconfig::Config* cfg;
    std::string pathstr;

    s_vector switches;
};

#endif // LDC_CONF_CONFIGFILE_H