Fix embedded new-space pointer in LCmpObjectEqAndBranch.

src/x64/macro-assembler-x64.cc

Index: src/x64/macro-assembler-x64.cc
diff --git a/src/x64/macro-assembler-x64.cc b/src/x64/macro-assembler-x64.cc
index 3c8b4ad8b1453c13549c1a8ea36c3512fcec4b0d..dc30a6ca626df5633da45ae97281d8df446b288f 100644
--- a/src/x64/macro-assembler-x64.cc
+++ b/src/x64/macro-assembler-x64.cc
@@ -2299,6 +2299,7 @@ void MacroAssembler::Move(Register dst, Handle<Object> source) {
   if (source->IsSmi()) {
     Move(dst, Smi::cast(*source));
   } else {
+    ASSERT(source->IsHeapObject());
     movq(dst, source, RelocInfo::EMBEDDED_OBJECT);
   }
 }
@@ -2309,6 +2310,7 @@ void MacroAssembler::Move(const Operand& dst, Handle<Object> source) {
   if (source->IsSmi()) {
     Move(dst, Smi::cast(*source));
   } else {
+    ASSERT(source->IsHeapObject());
     movq(kScratchRegister, source, RelocInfo::EMBEDDED_OBJECT);
     movq(dst, kScratchRegister);
   }
@@ -2320,7 +2322,8 @@ void MacroAssembler::Cmp(Register dst, Handle<Object> source) {
   if (source->IsSmi()) {
     Cmp(dst, Smi::cast(*source));
   } else {
-    Move(kScratchRegister, source);
+    ASSERT(source->IsHeapObject());
+    movq(kScratchRegister, source, RelocInfo::EMBEDDED_OBJECT);
     cmpq(dst, kScratchRegister);
   }
 }
@@ -2364,6 +2367,19 @@ void MacroAssembler::LoadHeapObject(Register result,
 }
 
 
+void MacroAssembler::CmpHeapObject(Register reg, Handle<HeapObject> object) {
+  ALLOW_HANDLE_DEREF(isolate(), "using raw address");
+  if (isolate()->heap()->InNewSpace(*object)) {
+    Handle<JSGlobalPropertyCell> cell =
+        isolate()->factory()->NewJSGlobalPropertyCell(object);
+    movq(kScratchRegister, cell, RelocInfo::GLOBAL_PROPERTY_CELL);
+    cmpq(reg, Operand(kScratchRegister, 0));
+  } else {
+    Cmp(reg, object);
+  }
+}
+
+
 void MacroAssembler::PushHeapObject(Handle<HeapObject> object) {
   ALLOW_HANDLE_DEREF(isolate(), "using raw address");
   if (isolate()->heap()->InNewSpace(*object)) {