Port function call type-feedback cells to x64 and ARM.

src/arm/code-stubs-arm.cc

Index: src/arm/code-stubs-arm.cc
diff --git a/src/arm/code-stubs-arm.cc b/src/arm/code-stubs-arm.cc
index 2f14d191b0598d9f27be0eab01fdb90493a76be9..ad2ab7e09defba7099488ecd7a4920daf0568a28 100644
--- a/src/arm/code-stubs-arm.cc
+++ b/src/arm/code-stubs-arm.cc
@@ -5169,9 +5169,9 @@ void CallFunctionStub::Generate(MacroAssembler* masm) {
     __ CompareRoot(r4, Heap::kTheHoleValueRootIndex);
     __ b(ne, &call);
     // Patch the receiver on the stack with the global receiver object.
-    __ ldr(r2, MemOperand(cp, Context::SlotOffset(Context::GLOBAL_INDEX)));
-    __ ldr(r2, FieldMemOperand(r2, GlobalObject::kGlobalReceiverOffset));
-    __ str(r2, MemOperand(sp, argc_ * kPointerSize));
+    __ ldr(r3, MemOperand(cp, Context::SlotOffset(Context::GLOBAL_INDEX)));
+    __ ldr(r3, FieldMemOperand(r3, GlobalObject::kGlobalReceiverOffset));
+    __ str(r3, MemOperand(sp, argc_ * kPointerSize));
     __ bind(&call);
   }
 
@@ -5179,9 +5179,13 @@ void CallFunctionStub::Generate(MacroAssembler* masm) {
   // r1: pushed function (to be verified)
   __ JumpIfSmi(r1, &non_function);
   // Get the map of the function object.
-  __ CompareObjectType(r1, r2, r2, JS_FUNCTION_TYPE);
+  __ CompareObjectType(r1, r3, r3, JS_FUNCTION_TYPE);
   __ b(ne, &slow);
 
+  if (RecordCallTarget()) {
+    GenerateRecordCallTarget(masm);
+  }
+
   // Fast-case: Invoke the function now.
   // r1: pushed function
   ParameterCount actual(argc_);
@@ -5205,8 +5209,17 @@ void CallFunctionStub::Generate(MacroAssembler* masm) {
 
   // Slow-case: Non-function called.
   __ bind(&slow);
+  if (RecordCallTarget()) {
+    // If there is a call target cache, mark it megamorphic in the
+    // non-function case.  MegamorphicSentinel is an immortal immovable
+    // object (undefined) so no write barrier is needed.
+    ASSERT_EQ(*TypeFeedbackCells::MegamorphicSentinel(masm->isolate()),
+              masm->isolate()->heap()->undefined_value());
+    __ LoadRoot(ip, Heap::kUndefinedValueRootIndex);
+    __ str(ip, FieldMemOperand(r2, JSGlobalPropertyCell::kValueOffset));
+  }
   // Check for function proxy.
-  __ cmp(r2, Operand(JS_FUNCTION_PROXY_TYPE));
+  __ cmp(r3, Operand(JS_FUNCTION_PROXY_TYPE));
   __ b(ne, &non_function);
   __ push(r1);  // put proxy as additional argument
   __ mov(r0, Operand(argc_ + 1, RelocInfo::NONE));