Allow specific optimization passes to be requested from the command line. Now you can run "`ldc test.d -c -mem2reg -simplifycfg`" if you feel the urge. The -O<N> options are still supported, and are inserted in the passes list in the position where they appear on the command line. (so -simplifycfg -O1 -instcombine does the "right thing") One small change: -inline is renamed to -enable-inlining due to a naming conflict with the option to add the -inline pass. -inline now inserts the inlining pass in the position specified, not in the middle of -O<N>. (ldmd has been updated to translate -inline to -enable-inlining)

// this head contains stuff used by all the IR

#ifndef LDC_IR_IR_H
#define LDC_IR_IR_H

#include <deque>

#include "ir/irforw.h"
#include "root.h"

struct IRState;
struct IrFunction;

struct IrBase : Object
{
    virtual ~IrBase() {}
};

struct Ir
{
    Ir();

    void setState(IRState* p)   { irs = p; }
    IRState* getState()         { return irs; }

    void addFunctionBody(IrFunction* f);
    void emitFunctionBodies();

private:
    IRState* irs;

    std::deque<IrFunction*> functionbodies;
};

#endif