[AVX512] Make the itinerary parameter actually pass through the the AVX512_maskable_common multiclass

[craig.topper]

Summary

This looks to have been disconnected about 3 years ago in r219358.

[gadi.haber]

Yes, This is correct.

lib/Target/X86/X86InstrAVX512.td

multiclass AVX512_maskable_common<bits<8> O, Format F, X86VectorVTInfo _,
                                   bit IsCommutable = 0,
                                   bit IsKCommutable = 0> :
   AVX512_maskable_custom<O, F, Outs, Ins, MaskingIns, ZeroMaskingIns, OpcodeStr,
                          AttSrcAsm, IntelSrcAsm,
                          [(set _.RC:$dst, RHS)],
                          [(set _.RC:$dst, MaskingRHS)],
                          [(set _.RC:$dst,
                                (Select _.KRCWM:$mask, RHS, _.ImmAllZerosV))],
-                         MaskingConstraint, NoItinerary, IsCommutable,
+                         MaskingConstraint, itin, IsCommutable,
                          IsKCommutable>;
 
 // Similar to AVX512_maskable_common, but with scalar types.
 multiclass AVX512_maskable_fp_common<bits<8> O, Format F, X86VectorVTInfo _,
                                   dag Outs,
                                   dag Ins, dag MaskingIns, dag ZeroMaskingIns,
                                   string OpcodeStr,
                                   string AttSrcAsm, string IntelSrcAsm,
                                   SDNode Select = vselect,
                                   string MaskingConstraint = "",
                                   InstrItinClass itin = NoItinerary,
                                   bit IsCommutable = 0,
                                   bit IsKCommutable = 0> :
   AVX512_maskable_custom<O, F, Outs, Ins, MaskingIns, ZeroMaskingIns, OpcodeStr,
                          AttSrcAsm, IntelSrcAsm,
                          [], [], [],
-                         MaskingConstraint, NoItinerary, IsCommutable,
+                         MaskingConstraint, itin, IsCommutable,
                          IsKCommutable>;
 
 // This multiclass generates the unconditional/non-masking, the masking and
 // the zero-masking variant of the vector instruction.  In the masking case, the
 // perserved vector elements come from a new dummy input operand tied to $dst.
 multiclass AVX512_maskable<bits<8> O, Format F, X86VectorVTInfo _,
                            dag Outs, dag Ins, string OpcodeStr,
                            string AttSrcAsm, string IntelSrcAsm,