VectorICs: vector [keyed]store ic MISS handling infrastructure.

src/ic/ia32/ic-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/codegen.h"
 #include "src/ic/ic.h"
@@ skipping 733 matching lines @@
   // Cache miss: Jump to runtime.
   GenerateMiss(masm);
 }
 
 
 static void StoreIC_PushArgs(MacroAssembler* masm) {
   Register receiver = StoreDescriptor::ReceiverRegister();
   Register name = StoreDescriptor::NameRegister();
   Register value = StoreDescriptor::ValueRegister();
 
-  DCHECK(!ebx.is(receiver) && !ebx.is(name) && !ebx.is(value));
+  if (FLAG_vector_stores) {
+    Register slot = VectorStoreICDescriptor::SlotRegister();
+    Register vector = VectorStoreICDescriptor::VectorRegister();
 
-  __ pop(ebx);
-  __ push(receiver);
-  __ push(name);
-  __ push(value);
-  __ push(ebx);
+    __ xchg(receiver, Operand(esp, 0));
+    __ push(name);
+    __ push(value);
+    __ push(slot);
+    __ push(vector);
+    __ push(receiver);  // Contains the return address.
+  } else {
+    DCHECK(!ebx.is(receiver) && !ebx.is(name) && !ebx.is(value));
+    __ pop(ebx);
+    __ push(receiver);
+    __ push(name);
+    __ push(value);
+    __ push(ebx);
+  }
 }
 
 
 void StoreIC::GenerateMiss(MacroAssembler* masm) {
   // Return address is on the stack.
   StoreIC_PushArgs(masm);
 
   // Perform tail call to the entry.
-  __ TailCallRuntime(Runtime::kStoreIC_Miss, 3, 1);
+  int args = FLAG_vector_stores ? 5 : 3;
+  __ TailCallRuntime(Runtime::kStoreIC_Miss, args, 1);
 }
 
 
 void StoreIC::GenerateNormal(MacroAssembler* masm) {
   Label restore_miss;
   Register receiver = StoreDescriptor::ReceiverRegister();
   Register name = StoreDescriptor::NameRegister();
   Register value = StoreDescriptor::ValueRegister();
   Register dictionary = ebx;
 
@@ skipping 15 matching lines @@
   __ IncrementCounter(counters->store_normal_miss(), 1);
   GenerateMiss(masm);
 }
 
 
 void KeyedStoreIC::GenerateMiss(MacroAssembler* masm) {
   // Return address is on the stack.
   StoreIC_PushArgs(masm);
 
   // Do tail-call to runtime routine.
-  __ TailCallRuntime(Runtime::kKeyedStoreIC_Miss, 3, 1);
+  int args = FLAG_vector_stores ? 5 : 3;
+  __ TailCallRuntime(Runtime::kKeyedStoreIC_Miss, args, 1);
 }
 
 
 #undef __
 
 
 Condition CompareIC::ComputeCondition(Token::Value op) {
   switch (op) {
     case Token::EQ_STRICT:
     case Token::EQ:
@@ skipping 57 matching lines @@
   Condition cc =
       (check == ENABLE_INLINED_SMI_CHECK)
           ? (*jmp_address == Assembler::kJncShortOpcode ? not_zero : zero)
           : (*jmp_address == Assembler::kJnzShortOpcode ? not_carry : carry);
   *jmp_address = static_cast<byte>(Assembler::kJccShortPrefix | cc);
 }
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_TARGET_ARCH_IA32