Use direct jump and call instruction for X64 when the deoptimization entries are in the code range

src/x64/lithium-codegen-x64.cc

Index: src/x64/lithium-codegen-x64.cc
===================================================================
--- src/x64/lithium-codegen-x64.cc	(revision 13219)
+++ src/x64/lithium-codegen-x64.cc	(working copy)
@@ -617,15 +617,23 @@
   }
 
   if (cc == no_condition) {
-    __ Jump(entry, RelocInfo::RUNTIME_ENTRY);
+    if (FLAG_disable_direct_deopt) {
+      __ Jump(entry, RelocInfo::RUNTIME_ENTRY);
+    } else {
+      __ jmp(entry, RelocInfo::DEOPT_ENTRY);
+    }
   } else {
-    // We often have several deopts to the same entry, reuse the last
-    // jump entry if this is the case.
-    if (jump_table_.is_empty() ||
-        jump_table_.last().address != entry) {
-      jump_table_.Add(JumpTableEntry(entry), zone());
+    if (FLAG_disable_direct_deopt) {
+      // We often have several deopts to the same entry, reuse the last
+      // jump entry if this is the case.
+      if (jump_table_.is_empty() ||
+          jump_table_.last().address != entry) {
+        jump_table_.Add(JumpTableEntry(entry), zone());
+      }
+      __ j(cc, &jump_table_.last().label);
+    } else {
+      __ j(cc, entry, RelocInfo::DEOPT_ENTRY);
     }
-    __ j(cc, &jump_table_.last().label);
   }
 }