Add two 8bit float types F8E4M3FN and F8E5M2 to valid XeGPU float type.

Author: silee2

mlir/include/mlir/Dialect/XeGPU/IR/XeGPUTypes.td

@@ -14,7 +14,7 @@ include "mlir/Dialect/XeGPU/IR/XeGPUDialect.td"
 include "mlir/IR/BuiltinTypes.td"
 
 def XeGPU_IntType: AnyTypeOf<[I1, I8, I16, I32, I64, SI1, SI8, SI16, SI32, SI64, UI1, UI8, UI16, UI32, UI64]>;
-def XeGPU_FloatType: AnyTypeOf<[F16, F32, F64, BF16, TF32]>;
+def XeGPU_FloatType: AnyTypeOf<[F8E4M3FN, F8E5M2, F16, F32, F64, BF16, TF32]>;
 def XeGPU_ScalarType: AnyTypeOf<[XeGPU_IntType, XeGPU_FloatType]>;
 def XeGPU_PointerType : AnyTypeOf<[UI64, UI32, I64, I32]>;
 def XeGPU_BaseAddrType