Remove WAR dependence for flag register

Remove WAR dependence for flag register

Author: bcheng0127

visa/HWCaps.inc

@@ -926,6 +926,10 @@ bool needA0WAR() const {
   return (getPlatform() >= Xe2);
 }
 
+bool needFlagWAR() const {
+  return (getPlatform() < Xe3);
+}
+
 bool alwaysAllowGlobalFlagOpt() const {
   // We shouldn't add this kind of ugly platform check. However, there's
   // a complicated bug found in TGLLP when disabling a flagopt case. There

visa/LocalScheduler/SWSB_G4IR.cpp

@@ -5898,7 +5898,7 @@ bool G4_BB_SB::getFootprintForOperand(SBNode *node, G4_INST *inst,
       footprint = getFootprintForACC(opnd, opndNum, inst);
       node->setFootprint(footprint, opndNum);
     }
-    if (isFlagReg) {
+    if (builder.needFlagWAR() && isFlagReg) {
       footprint = getFootprintForFlag(opnd, opndNum, inst);
       node->setFootprint(footprint, opndNum);
     }