[X86][SSE] combineSetCCMOVMSK - add initial support for allof patterns.
Handle MOVMSK 'allof' comparisons (X86ISD::SUB X, AllBitsMask) as well as 'anyof' patterns. This allows us to handle these patterns in the MOVMSK(BITCAST(X)) pattern to fix PR37087.
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dc52ce42
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