Make array allocation stub shared between isolates.

runtime/vm/intermediate_language_ia32.cc

Index: runtime/vm/intermediate_language_ia32.cc
diff --git a/runtime/vm/intermediate_language_ia32.cc b/runtime/vm/intermediate_language_ia32.cc
index 2865b2611398e6a0fe35dc3859091dd47ff05400..49102cbe6098ed72016a213d5bde3bb3aa99c04c 100644
--- a/runtime/vm/intermediate_language_ia32.cc
+++ b/runtime/vm/intermediate_language_ia32.cc
@@ -818,7 +818,6 @@ void NativeCallInstr::EmitNativeCode(FlowGraphCompiler* compiler) {
   const intptr_t argc_tag = NativeArguments::ComputeArgcTag(function());
   const bool is_leaf_call =
       (argc_tag & NativeArguments::AutoSetupScopeMask()) == 0;
-  StubCode* stub_code = compiler->isolate()->stub_code();
 
   // Push the result place holder initialized to NULL.
   __ PushObject(Object::null_object());
@@ -832,8 +831,8 @@ void NativeCallInstr::EmitNativeCode(FlowGraphCompiler* compiler) {
   __ movl(ECX, Immediate(reinterpret_cast<uword>(native_c_function())));
   __ movl(EDX, Immediate(argc_tag));
   const ExternalLabel* stub_entry = (is_bootstrap_native() || is_leaf_call) ?
-      &stub_code->CallBootstrapCFunctionLabel() :
-      &stub_code->CallNativeCFunctionLabel();
+      &StubCode::CallBootstrapCFunctionLabel() :
+      &StubCode::CallNativeCFunctionLabel();
   compiler->GenerateCall(token_pos(),
                          stub_entry,
                          RawPcDescriptors::kOther,
@@ -1650,7 +1649,6 @@ class BoxAllocationSlowPath : public SlowPathCode {
 
   virtual void EmitNativeCode(FlowGraphCompiler* compiler) {
     Isolate* isolate = compiler->isolate();
-    StubCode* stub_code = isolate->stub_code();
 
     if (Assembler::EmittingComments()) {
       __ Comment("%s slow path allocation of %s",
@@ -1659,7 +1657,7 @@ class BoxAllocationSlowPath : public SlowPathCode {
     }
     __ Bind(entry_label());
     const Code& stub =
-        Code::Handle(isolate, stub_code->GetAllocationStubForClass(cls_));
+        Code::Handle(isolate, StubCode::GetAllocationStubForClass(cls_));
     const ExternalLabel label(stub.EntryPoint());
 
     LocationSummary* locs = instruction_->locs();
@@ -2128,15 +2126,11 @@ void CreateArrayInstr::EmitNativeCode(FlowGraphCompiler* compiler) {
   }
 
   __ Bind(&slow_path);
-  Isolate* isolate = compiler->isolate();
-  const Code& stub = Code::Handle(
-      isolate, isolate->stub_code()->GetAllocateArrayStub());
-  const ExternalLabel label(stub.EntryPoint());
+  const ExternalLabel label(StubCode::AllocateArrayEntryPoint());
   compiler->GenerateCall(token_pos(),
                          &label,
                          RawPcDescriptors::kOther,
                          locs());
-  compiler->AddStubCallTarget(stub);
   __ Bind(&done);
   ASSERT(locs()->out(0).reg() == kResultReg);
 }
@@ -2404,8 +2398,7 @@ class AllocateContextSlowPath : public SlowPathCode {
     compiler->SaveLiveRegisters(locs);
 
     __ movl(EDX, Immediate(instruction_->num_context_variables()));
-    StubCode* stub_code = compiler->isolate()->stub_code();
-    const ExternalLabel label(stub_code->AllocateContextEntryPoint());
+    const ExternalLabel label(StubCode::AllocateContextEntryPoint());
     compiler->GenerateCall(instruction_->token_pos(),
                            &label,
                            RawPcDescriptors::kOther,
@@ -2460,8 +2453,7 @@ void AllocateContextInstr::EmitNativeCode(FlowGraphCompiler* compiler) {
   ASSERT(locs()->out(0).reg() == EAX);
 
   __ movl(EDX, Immediate(num_context_variables()));
-  StubCode* stub_code = compiler->isolate()->stub_code();
-  const ExternalLabel label(stub_code->AllocateContextEntryPoint());
+  const ExternalLabel label(StubCode::AllocateContextEntryPoint());
   compiler->GenerateCall(token_pos(),
                          &label,
                          RawPcDescriptors::kOther,
@@ -6802,9 +6794,8 @@ LocationSummary* AllocateObjectInstr::MakeLocationSummary(Zone* zone,
 
 void AllocateObjectInstr::EmitNativeCode(FlowGraphCompiler* compiler) {
   Isolate* isolate = compiler->isolate();
-  StubCode* stub_code = isolate->stub_code();
   const Code& stub = Code::Handle(isolate,
-                                  stub_code->GetAllocationStubForClass(cls()));
+                                  StubCode::GetAllocationStubForClass(cls()));
   const ExternalLabel label(stub.EntryPoint());
   compiler->GenerateCall(token_pos(),
                          &label,
@@ -6817,8 +6808,7 @@ void AllocateObjectInstr::EmitNativeCode(FlowGraphCompiler* compiler) {
 
 void DebugStepCheckInstr::EmitNativeCode(FlowGraphCompiler* compiler) {
   ASSERT(!compiler->is_optimizing());
-  StubCode* stub_code = compiler->isolate()->stub_code();
-  const ExternalLabel label(stub_code->DebugStepCheckEntryPoint());
+  const ExternalLabel label(StubCode::DebugStepCheckEntryPoint());
   compiler->GenerateCall(token_pos(), &label, stub_kind_, locs());
 }