[Autobackout][FuncReg]Revert of change: 82d9f2c

 Enforce HW conformity for BF mixed mode

Allow bf to be operands of some of insts in visa input. And let visa
HWConformity to enforce conformance to HW restriction.

Author: jgu222

visa/G4_Verifier.cpp

@@ -104,12 +104,8 @@ bool G4Verifier::verifyInst(G4_INST *inst)
             return verifyDefUseChain(inst);
         }
 
-        if (passIndex == Optimizer::PI_HWConformityChk
-            || passIndex == Optimizer::PI_addSWSBInfo)
-        {
-            // feature verification. Do it twice for now.
-            verifyBFMixedMode(inst);
-        }
+        // feature verification
+        verifyBFMixedMode(inst);
     }
     return true;
 }
@@ -1261,8 +1257,8 @@ void G4Verifier::verifyBFMixedMode(G4_INST* inst)
         return false;
     };
 
-    // Skip dpas/send as it has been verified separately
-    if (inst->isDpas() || inst->isSend())
+    // Skip dpas as it has been verified separately
+    if (inst->isDpas())
         return;
 
     // Skip if no BF usage