Remove split of arithmetic insts in CISACodeGen.

Inst split is handled by vISA.

Author: jfuentes

visa/BuildIR.h

@@ -36,6 +36,7 @@ SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
 #include "Gen4_IR.hpp"
 #include "FlowGraph.h"
+#include "InstSplit.h"
 #include "visa_igc_common_header.h"
 #include "Common_ISA.h"
 #include "Common_ISA_util.h"

visa/FlowGraph.cpp

@@ -952,6 +952,7 @@ void FlowGraph::normalizeRegionDescriptors()
 // materialize the values in global Imm at entry BB
 void IR_Builder::materializeGlobalImm(G4_BB* entryBB)
 {
+    InstSplitPass instSplitter(this);
     for (int i = 0, numImm = immPool.size(); i < numImm; ++i)
     {
         auto&& immVal = immPool.getImmVal(i);
@@ -961,7 +962,8 @@ void IR_Builder::materializeGlobalImm(G4_BB* entryBB)
             Create_Dst_Opnd_From_Dcl(dcl, 1), immVal.imm, InstOpt_WriteEnable, false);
         auto iter = std::find_if(entryBB->begin(), entryBB->end(),
             [](G4_INST* inst) { return !inst->isLabel(); });
-        entryBB->insertBefore(iter, inst);
+        INST_LIST_ITER newMov = entryBB->insertBefore(iter, inst);
+        instSplitter.splitInstruction(newMov, entryBB->getInstList());
     }
 }
 

visa/IsaVerification.cpp

@@ -554,10 +554,11 @@ void vISAVerifier::verifyRegion(
 
             // Check if the operand may touch more than 2 GRFs due to bad alignment
             // So far vISA is able to handle the splitting of:
-            // moves, logic and cmp instructions
+            // moves, logic, cmp and arithmetic instructions
             if (ISA_Inst_Table[opcode].type != ISA_Inst_Mov &&
                 ISA_Inst_Table[opcode].type != ISA_Inst_Logic &&
-                ISA_Inst_Table[opcode].type != ISA_Inst_Compare)
+                ISA_Inst_Table[opcode].type != ISA_Inst_Compare &&
+                ISA_Inst_Table[opcode].type != ISA_Inst_Arith)
             {
                 REPORT_INSTRUCTION(options, (COMMON_ISA_GRF_REG_SIZE * 2u) > last_region_elt_byte,
                     "CISA operand region access out of 2 GRF boundary (within %d bytes): %d",