Upgrade psimd to 85427dd4c8521cc037a1ffa6fcd25c55fafc8a00 am: 75bbd2a8f6

Change-Id: If2a0b39e441447df6125f967e8d3eef9f3bb280d
diff --git a/METADATA b/METADATA
index 347116a..3593e7e 100644
--- a/METADATA
+++ b/METADATA
@@ -9,11 +9,11 @@
     type: GIT
     value: "https://github.com/Maratyszcza/psimd"
   }
-  version: "88882f601f8179e1987b7e7cf4a8012c9080ad44"
+  version: "85427dd4c8521cc037a1ffa6fcd25c55fafc8a00"
   license_type: NOTICE
   last_upgrade_date {
     year: 2020
-    month: 2
-    day: 21
+    month: 4
+    day: 17
   }
 }
diff --git a/include/psimd.h b/include/psimd.h
index 9890b82..f674e46 100644
--- a/include/psimd.h
+++ b/include/psimd.h
@@ -28,7 +28,7 @@
 	#define PSIMD_INTRINSIC static
 #endif
 
-#if defined(__GNUC__)
+#if defined(__GNUC__) || defined(__clang__)
 	#if defined(__ARM_NEON__) || defined(__ARM_NEON)
 		#include <arm_neon.h>
 	#endif
@@ -78,7 +78,7 @@
 	#include <stdint.h>
 #endif
 
-#if defined(__GNUC__)
+#if defined(__GNUC__) || defined(__clang__)
 	#define PSIMD_HAVE_F64 0
 	#define PSIMD_HAVE_F32 1
 	#define PSIMD_HAVE_U8 1