Add a reserved vISA opcode

Add a reserved vISA opcode

Author: fangliu2020

visa/G4_IR.cpp

@@ -3170,7 +3170,8 @@ static void emitPredWrEn(std::ostream &output, G4_INST &inst) {
 
 static void emitExecSize(std::ostream &output, const G4_INST &inst) {
   auto execSize = static_cast<int>(inst.getExecSize());
-  if (inst.opcode() != G4_nop && inst.opcode() != G4_wait) {
+  if (inst.opcode() != G4_nop &&
+      inst.opcode() != G4_wait) {
     output << '(';
     if (execSize == UNDEFINED_EXEC_SIZE) {
       output << "??";

visa/IsaDescription.cpp

@@ -177,7 +177,8 @@ struct ISA_Inst_Info ISA_Inst_Table[ISA_OPCODE_ENUM_SIZE] = {
     {ISA_RESERVED_99, ISA_Inst_Reserved, "reserved99", 0, 0},
     {ISA_RESERVED_9A, ISA_Inst_Reserved, "reserved9a", 0, 0},
     {ISA_INVM,  ISA_Inst_Arith, "invm",  2, 2},
-    {ISA_RSQTM, ISA_Inst_Arith, "rsqtm", 1, 2}
+    {ISA_RSQTM, ISA_Inst_Arith, "rsqtm", 1, 2},
+    {ISA_RESERVED_9D, ISA_Inst_Reserved, "reserved9d", 0, 0}
 };
 
 VISA_INST_Desc CISA_INST_table[ISA_NUM_OPCODE] = {
@@ -2816,6 +2817,17 @@ VISA_INST_Desc CISA_INST_table[ISA_NUM_OPCODE] = {
         },
 
     },
+
+    // 157 (0x9D)
+    {
+        ALL,
+        ISA_RESERVED_9D,
+        ISA_Inst_Reserved,
+        "reserved_9d",
+        0,
+        0,
+        {},
+    },
 };
 
 static const ISA_SubInst_Desc VASubOpcodeDesc[] = {

visa/LocalScheduler/Dependencies_G4IR.cpp

@@ -206,7 +206,8 @@ DepType vISA::CheckBarrier(G4_INST *inst) {
                inst->getMsgDesc()->getSFID() == SFID::SPAWNER) {
       return MSG_BARRIER;
     }
-  } else if (inst->opcode() == G4_wait || inst->isYieldInst()) {
+  } else if (inst->opcode() == G4_wait ||
+      inst->isYieldInst()) {
     return MSG_BARRIER;
   } else if (inst->isFlowControl()) {
     // All control flow instructions are scheduling barriers

visa/include/visa_igc_common_header.h

@@ -420,6 +420,7 @@ typedef enum {
   ISA_RESERVED_9A = 0x9A,
   ISA_INVM = 0x9B,
   ISA_RSQTM = 0x9C,
+  ISA_RESERVED_9D = 0x9D,
   ISA_NUM_OPCODE,
   ISA_OPCODE_ENUM_SIZE = 0xFF
 } ISA_Opcode;