Reland Vector ICs: platform support for vector-based stores.

src/ic/x64/handler-compiler-x64.cc

Index: src/ic/x64/handler-compiler-x64.cc
diff --git a/src/ic/x64/handler-compiler-x64.cc b/src/ic/x64/handler-compiler-x64.cc
index fe6d168b52813ad37c38b6ee9d1e698654191a3b..1490c921fc3e1890b33f66418f2f3d484ca65601 100644
--- a/src/ic/x64/handler-compiler-x64.cc
+++ b/src/ic/x64/handler-compiler-x64.cc
@@ -304,13 +304,26 @@ static void StoreIC_PushArgs(MacroAssembler* masm) {
   Register name = StoreDescriptor::NameRegister();
   Register value = StoreDescriptor::ValueRegister();
 
-  DCHECK(!rbx.is(receiver) && !rbx.is(name) && !rbx.is(value));
+  if (FLAG_vector_stores) {
+    Register slot = VectorStoreICDescriptor::SlotRegister();
+    Register vector = VectorStoreICDescriptor::VectorRegister();
+
+    __ PopReturnAddressTo(r11);
+    __ Push(receiver);
+    __ Push(name);
+    __ Push(value);
+    __ Push(slot);
+    __ Push(vector);
+    __ PushReturnAddressFrom(r11);
+  } else {
+    DCHECK(!rbx.is(receiver) && !rbx.is(name) && !rbx.is(value));
 
-  __ PopReturnAddressTo(rbx);
-  __ Push(receiver);
-  __ Push(name);
-  __ Push(value);
-  __ PushReturnAddressFrom(rbx);
+    __ PopReturnAddressTo(rbx);
+    __ Push(receiver);
+    __ Push(name);
+    __ Push(value);
+    __ PushReturnAddressFrom(rbx);
+  }
 }
 
 
@@ -319,7 +332,7 @@ void NamedStoreHandlerCompiler::GenerateSlow(MacroAssembler* masm) {
   StoreIC_PushArgs(masm);
 
   // Do tail-call to runtime routine.
-  __ TailCallRuntime(Runtime::kStoreIC_Slow, 3, 1);
+  __ TailCallRuntime(Runtime::kStoreIC_Slow, FLAG_vector_stores ? 5 : 3, 1);
 }
 
 
@@ -328,7 +341,8 @@ void ElementHandlerCompiler::GenerateStoreSlow(MacroAssembler* masm) {
   StoreIC_PushArgs(masm);
 
   // Do tail-call to runtime routine.
-  __ TailCallRuntime(Runtime::kKeyedStoreIC_Slow, 3, 1);
+  __ TailCallRuntime(Runtime::kKeyedStoreIC_Slow, FLAG_vector_stores ? 5 : 3,
+                     1);
 }
 
 
@@ -575,6 +589,7 @@ void NamedStoreHandlerCompiler::FrontendFooter(Handle<Name> name, Label* miss) {
     Label success;
     __ jmp(&success);
     GenerateRestoreName(miss, name);
+    if (IC::ICUseVector(kind())) PopVectorAndSlot();
     TailCallBuiltin(masm(), MissBuiltin(kind()));
     __ bind(&success);
   }