Use a trampoline stub to load the type feedback vector for CallICs.

src/ia32/code-stubs-ia32.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/v8.h"
 
 #if V8_TARGET_ARCH_IA32
 
 #include "src/base/bits.h"
 #include "src/bootstrapper.h"
@@ skipping 2174 matching lines @@
   __ mov(vector, Operand(ebp, JavaScriptFrameConstants::kFunctionOffset));
   __ mov(vector, FieldOperand(vector, JSFunction::kSharedFunctionInfoOffset));
   __ mov(vector, FieldOperand(vector,
                               SharedFunctionInfo::kFeedbackVectorOffset));
 }
 
 
 void CallIC_ArrayStub::Generate(MacroAssembler* masm) {
   // edi - function
   // edx - slot id
+  // ebx - vector
   Label miss;
   int argc = arg_count();
   ParameterCount actual(argc);
 
-  EmitLoadTypeFeedbackVector(masm, ebx);
-
   __ LoadGlobalFunction(Context::ARRAY_FUNCTION_INDEX, ecx);
   __ cmp(edi, ecx);
   __ j(not_equal, &miss);
 
   __ mov(eax, arg_count());
   __ mov(ecx, FieldOperand(ebx, edx, times_half_pointer_size,
                            FixedArray::kHeaderSize));
 
   // Verify that ecx contains an AllocationSite
   Factory* factory = masm->isolate()->factory();
@@ skipping 15 matching lines @@
                          CallAsMethod());
 
   // Unreachable.
   __ int3();
 }
 
 
 void CallICStub::Generate(MacroAssembler* masm) {
   // edi - function
   // edx - slot id
+  // ebx - vector
   Isolate* isolate = masm->isolate();
   const int with_types_offset =
       FixedArray::OffsetOfElementAt(TypeFeedbackVector::kWithTypesIndex);
   const int generic_offset =
       FixedArray::OffsetOfElementAt(TypeFeedbackVector::kGenericCountIndex);
   Label extra_checks_or_miss, slow_start;
   Label slow, non_function, wrap, cont;
   Label have_js_function;
   int argc = arg_count();
   ParameterCount actual(argc);
 
-  EmitLoadTypeFeedbackVector(masm, ebx);
-
   // The checks. First, does edi match the recorded monomorphic target?
   __ cmp(edi, FieldOperand(ebx, edx, times_half_pointer_size,
                            FixedArray::kHeaderSize));
   __ j(not_equal, &extra_checks_or_miss);
 
   __ bind(&have_js_function);
   if (CallAsMethod()) {
     EmitContinueIfStrictOrNative(masm, &cont);
 
     // Load the receiver from the stack.
@@ skipping 2071 matching lines @@
 }
 
 
 void KeyedLoadICTrampolineStub::Generate(MacroAssembler* masm) {
   EmitLoadTypeFeedbackVector(masm, VectorLoadICDescriptor::VectorRegister());
   VectorKeyedLoadStub stub(isolate());
   __ jmp(stub.GetCode(), RelocInfo::CODE_TARGET);
 }
 
 
+void CallICTrampolineStub::Generate(MacroAssembler* masm) {
+  EmitLoadTypeFeedbackVector(masm, ebx);
+  CallICStub stub(isolate(), state());
+  __ jmp(stub.GetCode(), RelocInfo::CODE_TARGET);
+}
+
+
+void CallIC_ArrayTrampolineStub::Generate(MacroAssembler* masm) {
+  EmitLoadTypeFeedbackVector(masm, ebx);
+  CallIC_ArrayStub stub(isolate(), state());
+  __ jmp(stub.GetCode(), RelocInfo::CODE_TARGET);
+}
+
+
 void ProfileEntryHookStub::MaybeCallEntryHook(MacroAssembler* masm) {
   if (masm->isolate()->function_entry_hook() != NULL) {
     ProfileEntryHookStub stub(masm->isolate());
     masm->CallStub(&stub);
   }
 }
 
 
 void ProfileEntryHookStub::Generate(MacroAssembler* masm) {
   // Save volatile registers.
@@ skipping 712 matching lines @@
                            ApiParameterOperand(2), kStackSpace, nullptr,
                            Operand(ebp, 7 * kPointerSize), NULL);
 }
 
 
 #undef __
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_IA32