Enable stub generation using Hydrogen/Lithium (again)

src/x64/builtins-x64.cc

Index: src/x64/builtins-x64.cc
diff --git a/src/x64/builtins-x64.cc b/src/x64/builtins-x64.cc
index ed0ec684fc138fa63569d8519b1736a0810cb5c4..d66c0f752a91f47974de73910359ebd53d3978da 100644
--- a/src/x64/builtins-x64.cc
+++ b/src/x64/builtins-x64.cc
@@ -646,31 +646,56 @@ CODE_AGE_LIST(DEFINE_CODE_AGE_BUILTIN_GENERATOR)
 #undef DEFINE_CODE_AGE_BUILTIN_GENERATOR
 
 
+void Builtins::Generate_NotifyICMiss(MacroAssembler* masm) {
+  // Enter an internal frame.
+  {
+    FrameScope scope(masm, StackFrame::INTERNAL);
+
+    // Preserve registers across notification this is important compiled stubs
+    // that tail call the runtime on deopts passing their parameters in
+    // registers.
+    __ Pushad();
+    __ CallRuntime(Runtime::kNotifyICMiss, 0);
+    __ Popad();
+    // Tear down internal frame.
+  }
+
+  __ ret(1 * kPointerSize);
+}
+
+
 static void Generate_NotifyDeoptimizedHelper(MacroAssembler* masm,
                                              Deoptimizer::BailoutType type) {
   // Enter an internal frame.
   {
     FrameScope scope(masm, StackFrame::INTERNAL);
 
+    // Preserve registers across notification, this is important compiled stubs
+    // that tail call the runtime on deopts passing their parameters in
+    // registers.
+    __ Pushad();
+
     // Pass the deoptimization type to the runtime system.
     __ Push(Smi::FromInt(static_cast<int>(type)));
 
     __ CallRuntime(Runtime::kNotifyDeoptimized, 1);
+
+    __ Popad();
     // Tear down internal frame.
   }
 
   // Get the full codegen state from the stack and untag it.
-  __ SmiToInteger32(rcx, Operand(rsp, 1 * kPointerSize));
+  __ SmiToInteger32(r10, Operand(rsp, 1 * kPointerSize));
 
   // Switch on the state.
   Label not_no_registers, not_tos_rax;
-  __ cmpq(rcx, Immediate(FullCodeGenerator::NO_REGISTERS));
+  __ cmpq(r10, Immediate(FullCodeGenerator::NO_REGISTERS));
   __ j(not_equal, &not_no_registers, Label::kNear);
   __ ret(1 * kPointerSize);  // Remove state.
 
   __ bind(&not_no_registers);
   __ movq(rax, Operand(rsp, 2 * kPointerSize));
-  __ cmpq(rcx, Immediate(FullCodeGenerator::TOS_REG));
+  __ cmpq(r10, Immediate(FullCodeGenerator::TOS_REG));
   __ j(not_equal, &not_tos_rax, Label::kNear);
   __ ret(2 * kPointerSize);  // Remove state, rax.