Minor refactor to avoid hard-coding execution size.

Change-Id: I8b65512a930bb5145885afda7ed7663143183ad2

Author: weiyu-chen

visa/GraphColor.cpp

@@ -1007,7 +1007,7 @@ void BankConflictPass::setupBankConflictsForBB(G4_BB* bb,
             }
             else
             {
-                    setupBankConflictsforTwoGRFs(inst);
+                setupBankConflictsforTwoGRFs(inst);
             }
 
         }

visa/HWCaps.inc

@@ -448,6 +448,11 @@
         getPlatform() == GENX_ICLLP;
     }
 
+    bool isGen12LP() const
+    {
+        return getPlatform() == GENX_TGLLP;
+    }
+
     bool no64bitType() const
     {
         return getPlatform() == GENX_ICLLP || isGen12LP();
@@ -590,11 +595,6 @@
         return false;
     }
 
-    bool isGen12LP() const
-    {
-        return getPlatform() == GENX_TGLLP;
-    }
-
     bool predCtrlHasWidth() const
     {
         return true;

visa/TranslationInterface.cpp

@@ -3086,7 +3086,7 @@ int IR_Builder::translateVISAMediaLoadInst(
 
         unsigned short remained_ele = obj_size / G4_Type_Table[original_dst->getType()].byteSize;
         // max execution size is 32
-        unsigned char curr_exec_size = 16;
+        unsigned char curr_exec_size = getNativeExecSize() * 2;
         unsigned char curr_offset = 0;
 
         G4_Type dstType = original_dst->getType();