Merge experimental/a64 to bleeding_edge.

src/code-stubs.h

Index: src/code-stubs.h
diff --git a/src/code-stubs.h b/src/code-stubs.h
index 49a5dd0783c56895b8b3e06a090fca6c388118a6..0a90dbbe13eb49e1b86b1ac9222ede851e355ec2 100644
--- a/src/code-stubs.h
+++ b/src/code-stubs.h
@@ -107,6 +107,12 @@ namespace internal {
   V(SetProperty)               \
   V(InvokeBuiltin)             \
   V(DirectCEntry)
+#elif V8_TARGET_ARCH_A64
+#define CODE_STUB_LIST_ARM(V)  \
+  V(GetProperty)               \
+  V(SetProperty)               \
+  V(InvokeBuiltin)             \
+  V(DirectCEntry)
 #else
 #define CODE_STUB_LIST_ARM(V)
 #endif
@@ -442,6 +448,8 @@ class RuntimeCallHelper {
 #include "ia32/code-stubs-ia32.h"
 #elif V8_TARGET_ARCH_X64
 #include "x64/code-stubs-x64.h"
+#elif V8_TARGET_ARCH_A64
+#include "a64/code-stubs-a64.h"
 #elif V8_TARGET_ARCH_ARM
 #include "arm/code-stubs-arm.h"
 #elif V8_TARGET_ARCH_MIPS
@@ -1866,23 +1874,21 @@ class DoubleToIStub : public PlatformCodeStub {
                 int offset,
                 bool is_truncating,
                 bool skip_fastpath = false) : bit_field_(0) {
-    bit_field_ = SourceRegisterBits::encode(source.code_) |
-      DestinationRegisterBits::encode(destination.code_) |
+    bit_field_ = SourceRegisterBits::encode(source.code()) |
+      DestinationRegisterBits::encode(destination.code()) |
       OffsetBits::encode(offset) |
       IsTruncatingBits::encode(is_truncating) |
       SkipFastPathBits::encode(skip_fastpath) |
       SSEBits::encode(CpuFeatures::IsSafeForSnapshot(SSE2) ?
-                          CpuFeatures::IsSafeForSnapshot(SSE3) ? 2 : 1 : 0);
+                      CpuFeatures::IsSafeForSnapshot(SSE3) ? 2 : 1 : 0);
   }
 
   Register source() {
-    Register result = { SourceRegisterBits::decode(bit_field_) };
-    return result;
+    return Register::from_code(SourceRegisterBits::decode(bit_field_));
   }
 
   Register destination() {
-    Register result = { DestinationRegisterBits::decode(bit_field_) };
-    return result;
+    return Register::from_code(DestinationRegisterBits::decode(bit_field_));
   }
 
   bool is_truncating() {