Updating xarch to utilize EVEX compares and blending where profitable

Author: tannergooding

src/coreclr/jit/emitxarch.cpp

@@ -12558,13 +12558,34 @@ void emitter::emitDispConstant(const instrDesc* id, bool skipComma) const
 {
     instruction ins = id->idIns();
 
-    if ((ins == INS_cmppd) || (ins == INS_cmpps) || (ins == INS_cmpsd) || (ins == INS_cmpss) ||
-        (ins == INS_pclmulqdq) || (ins == INS_vpcmpb) || (ins == INS_vpcmpd) || (ins == INS_vpcmpq) ||
-        (ins == INS_vpcmpw) || (ins == INS_vpcmpub) || (ins == INS_vpcmpud) || (ins == INS_vpcmpuq) ||
-        (ins == INS_vpcmpuw))
+    switch (ins)
     {
-        // These instructions have pseudo-names for each possible immediate value
-        return;
+        case INS_cmppd:
+        case INS_cmpps:
+        case INS_cmpsd:
+        case INS_cmpss:
+        case INS_pclmulqdq:
+        case INS_vcmppd:
+        case INS_vcmpps:
+        case INS_vcmpsd:
+        case INS_vcmpss:
+        case INS_vpcmpb:
+        case INS_vpcmpd:
+        case INS_vpcmpq:
+        case INS_vpcmpw:
+        case INS_vpcmpub:
+        case INS_vpcmpud:
+        case INS_vpcmpuq:
+        case INS_vpcmpuw:
+        {
+            // These instructions have pseudo-names for each possible immediate value
+            return;
+        }
+
+        default:
+        {
+            break;
+        }
     }
 
     CnsVal cnsVal;