Use BF type in IGC

As BF is a new visa type, let IGC use it.

Author: jgu222

IGC/Compiler/CISACodeGen/CISABuilder.cpp

@@ -708,6 +708,7 @@ namespace IGC
             return 31;
         case ISA_TYPE_W:
         case ISA_TYPE_HF:
+        case ISA_TYPE_BF:
             return 15;
         case ISA_TYPE_B:
             return 7;
@@ -720,7 +721,7 @@ namespace IGC
 
     bool IsFloat(VISA_Type type)
     {
-        return type == ISA_TYPE_DF || type == ISA_TYPE_F || type == ISA_TYPE_HF;
+        return type == ISA_TYPE_DF || type == ISA_TYPE_F || type == ISA_TYPE_HF || type == ISA_TYPE_BF;
     }
 
     uint64_t CalculateImmediateValue(CVariable* var, e_modifier mod)

IGC/Compiler/CISACodeGen/CVariable.cpp

@@ -211,6 +211,7 @@ uint CVariable::GetCISADataTypeSize(VISA_Type type)
     case ISA_TYPE_Q:     return 8;
     case ISA_TYPE_UQ:    return 8;
     case ISA_TYPE_HF:    return 2;
+    case ISA_TYPE_BF:    return 2;
     default:
         IGC_ASSERT_MESSAGE(0, "Unimplemented CISA Data Type");
         break;
@@ -253,6 +254,8 @@ e_alignment CVariable::GetCISADataTypeAlignment(VISA_Type type)
         return EALIGN_QWORD;
     case ISA_TYPE_HF:
         return EALIGN_WORD;
+    case ISA_TYPE_BF:
+        return EALIGN_WORD;
     default:
         IGC_ASSERT_MESSAGE(0, "Unimplemented CISA Data Type");
         break;

IGC/Compiler/CISACodeGen/CVariable.hpp

@@ -314,6 +314,7 @@ namespace IGC {
             case ISA_TYPE_Q: return "q";
             case ISA_TYPE_UV: return "uv";
             case ISA_TYPE_HF: return "hf";
+            case ISA_TYPE_BF: return "bf";
             default: return "illegal";
             }
         }

IGC/Compiler/CISACodeGen/EmitVISAPass.cpp

@@ -2003,6 +2003,7 @@ static uint64_t getFPOne(VISA_Type Ty)
     {
     case ISA_TYPE_DF:   return 0x3FF0000000000000;
     case ISA_TYPE_F:    return 0x3F800000;
+    case ISA_TYPE_BF:   return 0x3F80;
     case ISA_TYPE_HF:   return 0x3C00;
     default: break;
     }