webkitgtk-2.16.5HEADwebkitgtk-2.16.5master

1 files changed, 94 insertions, 0 deletions

diff --git a/Source/JavaScriptCore/assembler/CPU.h b/Source/JavaScriptCore/assembler/CPU.h
new file mode 100644
index 000000000..8e8c82f9b
--- /dev/null
+++ b/Source/JavaScriptCore/assembler/CPU.h
@@ -0,0 +1,94 @@
+/*
+ * Copyright (C) 2008, 2012-2015 Apple Inc. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
+ */
+
+#pragma once
+
+#include "Options.h"
+
+namespace JSC {
+
+inline bool isARMv7IDIVSupported()
+{
+#if HAVE(ARM_IDIV_INSTRUCTIONS)
+    return true;
+#else
+    return false;
+#endif
+}
+
+inline bool isARM64()
+{
+#if CPU(ARM64)
+    return true;
+#else
+    return false;
+#endif
+}
+
+inline bool isX86()
+{
+#if CPU(X86_64) || CPU(X86)
+    return true;
+#else
+    return false;
+#endif
+}
+
+inline bool isX86_64()
+{
+#if CPU(X86_64)
+    return true;
+#else
+    return false;
+#endif
+}
+
+inline bool optimizeForARMv7IDIVSupported()
+{
+    return isARMv7IDIVSupported() && Options::useArchitectureSpecificOptimizations();
+}
+
+inline bool optimizeForARM64()
+{
+    return isARM64() && Options::useArchitectureSpecificOptimizations();
+}
+
+inline bool optimizeForX86()
+{
+    return isX86() && Options::useArchitectureSpecificOptimizations();
+}
+
+inline bool optimizeForX86_64()
+{
+    return isX86_64() && Options::useArchitectureSpecificOptimizations();
+}
+
+inline bool hasSensibleDoubleToInt()
+{
+    return optimizeForX86();
+}
+
+} // namespace JSC
+