x86: Update intel compiler cpu dispatcher override for new versions of ICC/ICL

[x264] / extras / intel_dispatcher.h

diff --git a/extras/intel_dispatcher.h b/extras/intel_dispatcher.h
new file mode 100644 (file)
index 0000000..8837c62
--- /dev/null
+++ b/extras/intel_dispatcher.h
@@ -0,0 +1,46 @@
+/*****************************************************************************
+ * intel_dispatcher.h: intel compiler cpu dispatcher override
+ *****************************************************************************
+ * Copyright (C) 2014 x264 project
+ *
+ * Authors: Anton Mitrofanov <BugMaster@narod.ru>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02111, USA.
+ *
+ * This program is also available under a commercial proprietary license.
+ * For more information, contact us at licensing@x264.com.
+ *****************************************************************************/
+
+#ifndef X264_INTEL_DISPATCHER_H
+#define X264_INTEL_DISPATCHER_H
+
+/* Feature flags using _FEATURE_* defines from immintrin.h */
+extern unsigned long long __intel_cpu_feature_indicator;
+extern unsigned long long __intel_cpu_feature_indicator_x;
+
+/* CPU vendor independent version of dispatcher */
+void __intel_cpu_features_init_x( void );
+
+static void x264_intel_dispatcher_override( void )
+{
+    if( __intel_cpu_feature_indicator & ~1ULL )
+        return;
+    __intel_cpu_feature_indicator = 0;
+    __intel_cpu_feature_indicator_x = 0;
+    __intel_cpu_features_init_x();
+    __intel_cpu_feature_indicator = __intel_cpu_feature_indicator_x;
+}
+
+#endif