llvm-6502/lib/Target/MSIL

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Vector instructions support.

ShuffleVector
ExtractElement
InsertElement

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Add "OpaqueType" type.

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"switch" instruction emulation with CLI "switch" instruction.

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Write linker for external function, because function export need to know 
dynamic library where function located.

.method static hidebysig pinvokeimpl("msvcrt.dll" cdecl)
    void free(void*) preservesig {}