There's an issue with LLVM metadata support; it triggers an assert when trying to generate asm for code with metadata globals. This new pass is used as a workaround: it strips metadata from the module before it reaches the code generator. Obviously, this is disabled if LLVM doesn't support metadata.

#include "gen/llvm.h"
#include "ir/ir.h"
#include "ir/irdtype.h"

IrDType::IrDType()
{
    type = NULL;
}