[stubs] Also port the CallICStub to CSA.

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.
 
 #if V8_TARGET_ARCH_IA32
 
 #include "src/code-stubs.h"
 #include "src/api-arguments.h"
 #include "src/base/bits.h"
 #include "src/bootstrapper.h"
@@ skipping 1390 matching lines @@
   __ mov(ecx, FieldOperand(edi, JSFunction::kSharedFunctionInfoOffset));
   __ mov(ecx, FieldOperand(ecx, SharedFunctionInfo::kConstructStubOffset));
   __ lea(ecx, FieldOperand(ecx, Code::kHeaderSize));
   __ jmp(ecx);
 
   __ bind(&non_function);
   __ mov(edx, edi);
   __ Jump(isolate()->builtins()->Construct(), RelocInfo::CODE_TARGET);
 }
 
-static void IncrementCallCount(MacroAssembler* masm, Register feedback_vector,
-                               Register slot) {
-  __ add(FieldOperand(feedback_vector, slot, times_half_pointer_size,
-                      FixedArray::kHeaderSize + kPointerSize),
-         Immediate(Smi::FromInt(1)));
-}
-
-void CallICStub::HandleArrayCase(MacroAssembler* masm, Label* miss) {
-  // eax - number of arguments
-  // edi - function
-  // edx - slot id
-  // ebx - vector
-  __ LoadGlobalFunction(Context::ARRAY_FUNCTION_INDEX, ecx);
-  __ cmp(edi, ecx);
-  __ j(not_equal, miss);
-
-  // Reload ecx.
-  __ mov(ecx, FieldOperand(ebx, edx, times_half_pointer_size,
-                           FixedArray::kHeaderSize));
-
-  // Increment the call count for monomorphic function calls.
-  IncrementCallCount(masm, ebx, edx);
-
-  __ mov(ebx, ecx);
-  __ mov(edx, edi);
-  ArrayConstructorStub stub(masm->isolate());
-  __ TailCallStub(&stub);
-
-  // Unreachable.
-}
-
-
-void CallICStub::Generate(MacroAssembler* masm) {
-  // edi - number of arguments
-  // edi - function
-  // edx - slot id
-  // ebx - vector
-  Isolate* isolate = masm->isolate();
-  Label extra_checks_or_miss, call, call_function, call_count_incremented;
-
-  // The checks. First, does edi match the recorded monomorphic target?
-  __ mov(ecx, FieldOperand(ebx, edx, times_half_pointer_size,
-                           FixedArray::kHeaderSize));
-
-  // We don't know that we have a weak cell. We might have a private symbol
-  // or an AllocationSite, but the memory is safe to examine.
-  // AllocationSite::kTransitionInfoOffset - contains a Smi or pointer to
-  // FixedArray.
-  // WeakCell::kValueOffset - contains a JSFunction or Smi(0)
-  // Symbol::kHashFieldSlot - if the low bit is 1, then the hash is not
-  // computed, meaning that it can't appear to be a pointer. If the low bit is
-  // 0, then hash is computed, but the 0 bit prevents the field from appearing
-  // to be a pointer.
-  STATIC_ASSERT(WeakCell::kSize >= kPointerSize);
-  STATIC_ASSERT(AllocationSite::kTransitionInfoOffset ==
-                    WeakCell::kValueOffset &&
-                WeakCell::kValueOffset == Symbol::kHashFieldSlot);
-
-  __ cmp(edi, FieldOperand(ecx, WeakCell::kValueOffset));
-  __ j(not_equal, &extra_checks_or_miss);
-
-  // The compare above could have been a SMI/SMI comparison. Guard against this
-  // convincing us that we have a monomorphic JSFunction.
-  __ JumpIfSmi(edi, &extra_checks_or_miss);
-
-  __ bind(&call_function);
-
-  // Increment the call count for monomorphic function calls.
-  IncrementCallCount(masm, ebx, edx);
-
-  __ Jump(masm->isolate()->builtins()->CallFunction(convert_mode(),
-                                                    tail_call_mode()),
-          RelocInfo::CODE_TARGET);
-
-  __ bind(&extra_checks_or_miss);
-  Label uninitialized, miss, not_allocation_site;
-
-  __ cmp(ecx, Immediate(TypeFeedbackVector::MegamorphicSentinel(isolate)));
-  __ j(equal, &call);
-
-  // Check if we have an allocation site.
-  __ CompareRoot(FieldOperand(ecx, HeapObject::kMapOffset),
-                 Heap::kAllocationSiteMapRootIndex);
-  __ j(not_equal, &not_allocation_site);
-
-  // We have an allocation site.
-  HandleArrayCase(masm, &miss);
-
-  __ bind(&not_allocation_site);
-
-  // The following cases attempt to handle MISS cases without going to the
-  // runtime.
-  if (FLAG_trace_ic) {
-    __ jmp(&miss);
-  }
-
-  __ cmp(ecx, Immediate(TypeFeedbackVector::UninitializedSentinel(isolate)));
-  __ j(equal, &uninitialized);
-
-  // We are going megamorphic. If the feedback is a JSFunction, it is fine
-  // to handle it here. More complex cases are dealt with in the runtime.
-  __ AssertNotSmi(ecx);
-  __ CmpObjectType(ecx, JS_FUNCTION_TYPE, ecx);
-  __ j(not_equal, &miss);
-  __ mov(
-      FieldOperand(ebx, edx, times_half_pointer_size, FixedArray::kHeaderSize),
-      Immediate(TypeFeedbackVector::MegamorphicSentinel(isolate)));
-
-  __ bind(&call);
-
-  // Increment the call count for megamorphic function calls.
-  IncrementCallCount(masm, ebx, edx);
-
-  __ bind(&call_count_incremented);
-
-  __ Jump(masm->isolate()->builtins()->Call(convert_mode(), tail_call_mode()),
-          RelocInfo::CODE_TARGET);
-
-  __ bind(&uninitialized);
-
-  // We are going monomorphic, provided we actually have a JSFunction.
-  __ JumpIfSmi(edi, &miss);
-
-  // Goto miss case if we do not have a function.
-  __ CmpObjectType(edi, JS_FUNCTION_TYPE, ecx);
-  __ j(not_equal, &miss);
-
-  // Make sure the function is not the Array() function, which requires special
-  // behavior on MISS.
-  __ LoadGlobalFunction(Context::ARRAY_FUNCTION_INDEX, ecx);
-  __ cmp(edi, ecx);
-  __ j(equal, &miss);
-
-  // Make sure the function belongs to the same native context.
-  __ mov(ecx, FieldOperand(edi, JSFunction::kContextOffset));
-  __ mov(ecx, ContextOperand(ecx, Context::NATIVE_CONTEXT_INDEX));
-  __ cmp(ecx, NativeContextOperand());
-  __ j(not_equal, &miss);
-
-  // Store the function. Use a stub since we need a frame for allocation.
-  // eax - number of arguments
-  // ebx - vector
-  // edx - slot
-  // edi - function
-  {
-    FrameScope scope(masm, StackFrame::INTERNAL);
-    CreateWeakCellStub create_stub(isolate);
-    __ SmiTag(eax);
-    __ push(eax);
-    __ push(ebx);
-    __ push(edx);
-    __ push(edi);
-    __ push(esi);
-    __ CallStub(&create_stub);
-    __ pop(esi);
-    __ pop(edi);
-    __ pop(edx);
-    __ pop(ebx);
-    __ pop(eax);
-    __ SmiUntag(eax);
-  }
-
-  __ jmp(&call_function);
-
-  // We are here because tracing is on or we encountered a MISS case we can't
-  // handle here.
-  __ bind(&miss);
-  GenerateMiss(masm);
-
-  __ jmp(&call_count_incremented);
-
-  // Unreachable
-  __ int3();
-}
-
-
-void CallICStub::GenerateMiss(MacroAssembler* masm) {
-  FrameScope scope(masm, StackFrame::INTERNAL);
-
-  // Preserve the number of arguments.
-  __ SmiTag(eax);
-  __ push(eax);
-
-  // Push the function and feedback info.
-  __ push(edi);
-  __ push(ebx);
-  __ push(edx);
-
-  // Call the entry.
-  __ CallRuntime(Runtime::kCallIC_Miss);
-
-  // Move result to edi and exit the internal frame.
-  __ mov(edi, eax);
-
-  // Restore number of arguments.
-  __ pop(eax);
-  __ SmiUntag(eax);
-}
-
-
 bool CEntryStub::NeedsImmovableCode() {
   return false;
 }
 
 
 void CodeStub::GenerateStubsAheadOfTime(Isolate* isolate) {
   CEntryStub::GenerateAheadOfTime(isolate);
   StoreBufferOverflowStub::GenerateFixedRegStubsAheadOfTime(isolate);
   StubFailureTrampolineStub::GenerateAheadOfTime(isolate);
   // It is important that the store buffer overflow stubs are generated first.
@@ skipping 2573 matching lines @@
                            kStackUnwindSpace, nullptr, return_value_operand,
                            NULL);
 }
 
 #undef __
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_TARGET_ARCH_IA32