Upgrade FP16 to 4dfe081cf6bcd15db339cf2680b9281b8451eeb3 am: 7cea9a0f20 am: 6321f9ece6 am: 169fc31aa8

Change-Id: I7f5c2eb1fb6cc8d201036defebb6f14065c01688
diff --git a/METADATA b/METADATA
index 5d4ed15..437b9ba 100644
--- a/METADATA
+++ b/METADATA
@@ -9,11 +9,11 @@
     type: GIT
     value: "https://github.com/Maratyszcza/FP16"
   }
-  version: "3c54eacb74f6f5e39077300c5564156c424d77ba"
+  version: "4dfe081cf6bcd15db339cf2680b9281b8451eeb3"
   license_type: NOTICE
   last_upgrade_date {
     year: 2020
-    month: 4
-    day: 13
+    month: 5
+    day: 14
   }
 }
diff --git a/include/fp16/bitcasts.h b/include/fp16/bitcasts.h
index 26a755c..86a4e22 100644
--- a/include/fp16/bitcasts.h
+++ b/include/fp16/bitcasts.h
@@ -8,6 +8,14 @@
 	#include <stdint.h>
 #endif
 
+#if defined(__INTEL_COMPILER)
+	#include <immintrin.h>
+#endif
+
+#if defined(_MSC_VER) && (defined(_M_ARM) || defined(_M_ARM64))
+	#include <intrin.h>
+#endif
+
 
 static inline float fp32_from_bits(uint32_t w) {
 #if defined(__OPENCL_VERSION__)
@@ -16,6 +24,8 @@
 	return __uint_as_float((unsigned int) w);
 #elif defined(__INTEL_COMPILER)
 	return _castu32_f32(w);
+#elif defined(_MSC_VER) && (defined(_M_ARM) || defined(_M_ARM64))
+	return _CopyFloatFromInt32((__int32) w);
 #else
 	union {
 		uint32_t as_bits;
@@ -32,6 +42,8 @@
 	return (uint32_t) __float_as_uint(f);
 #elif defined(__INTEL_COMPILER)
 	return _castf32_u32(f);
+#elif defined(_MSC_VER) && (defined(_M_ARM) || defined(_M_ARM64))
+	return (uint32_t) _CopyInt32FromFloat(f);
 #else
 	union {
 		float as_value;
@@ -48,6 +60,8 @@
 	return __longlong_as_double((long long) w);
 #elif defined(__INTEL_COMPILER)
 	return _castu64_f64(w);
+#elif defined(_MSC_VER) && (defined(_M_ARM) || defined(_M_ARM64))
+	return _CopyDoubleFromInt64((__int64) w);
 #else
 	union {
 		uint64_t as_bits;
@@ -64,6 +78,8 @@
 	return (uint64_t) __double_as_longlong(f);
 #elif defined(__INTEL_COMPILER)
 	return _castf64_u64(f);
+#elif defined(_MSC_VER) && (defined(_M_ARM) || defined(_M_ARM64))
+	return (uint64_t) _CopyInt64FromDouble(f);
 #else
 	union {
 		double as_value;