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Check existence of each required component during construction of LLV…
…MCDisassembler. Summary: Actually, fix two issues: # remove repeat creation of reg_info, use m_reg_info_ap for createMCAsmInfo instead; # remove possibility to dereference nullptr during createMCAsmInfo invocation, that could lead to undefined behavior. Placed checking of a component right after its creation to simplify the code and avoid same issues later. Reviewers: zturner, clayborg, jingham, jasonmolenda, labath Reviewed By: clayborg, labath Subscribers: labath, lldb-commits Differential Revision: https://reviews.llvm.org/D41584 llvm-svn: 322270
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