Add bfloat16::from_bits() static method

Author: AlexeySotkin

sycl/include/sycl/ext/intel/experimental/bfloat16.hpp

@@ -43,6 +43,12 @@ class [[sycl_detail::uses_aspects(ext_intel_bf16_conversion)]] bfloat16 {
 #endif
   }
 
+  static bfloat16 from_bits(const storage_t &a) {
+    bfloat16 res;
+    res.value = a;
+    return res;
+  }
+
   // Implicit conversion from float to bfloat16
   bfloat16(const float &a) { value = from_float(a); }
 

sycl/test/extensions/bfloat16.cpp

@@ -27,7 +27,7 @@ __attribute__((noinline)) float op(float a, float b) {
   // CHECK-NOT: uitofp
   // CHECK-NOT: fptoui
 
-  bfloat16 D = some_bf16_intrinsic(A, C);
+  bfloat16 D = bfloat16::from_bits(some_bf16_intrinsic(A, C));
   // CHECK: [[D:%.*]] = tail call spir_func zeroext i16 @_Z19some_bf16_intrinsictt(i16 zeroext [[A]], i16 zeroext [[C]])
   // CHECK-NOT: uitofp
   // CHECK-NOT: fptoui