1 files changed, 75 insertions, 0 deletions
diff --git a/js/src/jit/arm64/Architecture-arm64.cpp b/js/src/jit/arm64/Architecture-arm64.cpp
new file mode 100644
index 000000000..a5e62fb61
--- /dev/null
+++ b/js/src/jit/arm64/Architecture-arm64.cpp
@@ -0,0 +1,75 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
+ * vim: set ts=8 sts=4 et sw=4 tw=99:
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "jit/arm64/Architecture-arm64.h"
+
+#include <cstring>
+
+#include "jit/RegisterSets.h"
+
+namespace js {
+namespace jit {
+
+Registers::Code
+Registers::FromName(const char* name)
+{
+    // Check for some register aliases first.
+    if (strcmp(name, "ip0") == 0)
+        return ip0;
+    if (strcmp(name, "ip1") == 0)
+        return ip1;
+    if (strcmp(name, "fp") == 0)
+        return fp;
+
+    for (uint32_t i = 0; i < Total; i++) {
+        if (strcmp(GetName(Code(i)), name) == 0)
+            return Code(i);
+    }
+
+    return invalid_reg;
+}
+
+FloatRegisters::Code
+FloatRegisters::FromName(const char* name)
+{
+    for (size_t i = 0; i < Total; i++) {
+        if (strcmp(GetName(Code(i)), name) == 0)
+            return Code(i);
+    }
+
+    return invalid_fpreg;
+}
+
+FloatRegisterSet
+FloatRegister::ReduceSetForPush(const FloatRegisterSet& s)
+{
+    LiveFloatRegisterSet ret;
+    for (FloatRegisterIterator iter(s); iter.more(); ++iter)
+        ret.addUnchecked(FromCode((*iter).encoding()));
+    return ret.set();
+}
+
+uint32_t
+FloatRegister::GetSizeInBytes(const FloatRegisterSet& s)
+{
+    return s.size() * sizeof(double);
+}
+
+uint32_t
+FloatRegister::GetPushSizeInBytes(const FloatRegisterSet& s)
+{
+    return s.size() * sizeof(double);
+}
+
+uint32_t
+FloatRegister::getRegisterDumpOffsetInBytes()
+{
+    // Although registers are 128-bits wide, only the first 64 need saving per ABI.
+    return encoding() * sizeof(double);
+}
+
+} // namespace jit
+} // namespace js