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Unified Diff: src/x64/code-stubs-x64.cc

Issue 2670843002: [stubs] Also port the CallICStub to CSA. (Closed)
Patch Set: Introduce FullCodeGenerator::IntFromSlot. Created 3 years, 11 months ago
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Index: src/x64/code-stubs-x64.cc
diff --git a/src/x64/code-stubs-x64.cc b/src/x64/code-stubs-x64.cc
index f9cdc161f6d26dbb8c51ce2b9647fde12339405d..3e5ef4a108e8bab3e92d9e8af66805616bc5bdcc 100644
--- a/src/x64/code-stubs-x64.cc
+++ b/src/x64/code-stubs-x64.cc
@@ -1296,201 +1296,6 @@ void CallConstructStub::Generate(MacroAssembler* masm) {
__ Jump(isolate()->builtins()->Construct(), RelocInfo::CODE_TARGET);
}
-static void IncrementCallCount(MacroAssembler* masm, Register feedback_vector,
- Register slot) {
- __ SmiAddConstant(FieldOperand(feedback_vector, slot, times_pointer_size,
- FixedArray::kHeaderSize + kPointerSize),
- Smi::FromInt(1));
-}
-
-void CallICStub::HandleArrayCase(MacroAssembler* masm, Label* miss) {
- // rdi - function
- // rdx - slot id
- // rbx - vector
- // rcx - allocation site (loaded from vector[slot]).
- __ LoadNativeContextSlot(Context::ARRAY_FUNCTION_INDEX, r8);
- __ cmpp(rdi, r8);
- __ j(not_equal, miss);
-
- // Increment the call count for monomorphic function calls.
- IncrementCallCount(masm, rbx, rdx);
-
- __ movp(rbx, rcx);
- __ movp(rdx, rdi);
- ArrayConstructorStub stub(masm->isolate());
- __ TailCallStub(&stub);
-}
-
-
-void CallICStub::Generate(MacroAssembler* masm) {
- // ----------- S t a t e -------------
- // -- rax - number of arguments
- // -- rdi - function
- // -- rdx - slot id
- // -- rbx - vector
- // -----------------------------------
- Isolate* isolate = masm->isolate();
- Label extra_checks_or_miss, call, call_function, call_count_incremented;
-
- // The checks. First, does rdi match the recorded monomorphic target?
- __ SmiToInteger32(rdx, rdx);
- __ movp(rcx,
- FieldOperand(rbx, rdx, times_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);
-
- __ cmpp(rdi, FieldOperand(rcx, 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(rdi, &extra_checks_or_miss);
-
- __ bind(&call_function);
- // Increment the call count for monomorphic function calls.
- IncrementCallCount(masm, rbx, rdx);
-
- __ 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(rcx, TypeFeedbackVector::MegamorphicSentinel(isolate));
- __ j(equal, &call);
-
- // Check if we have an allocation site.
- __ CompareRoot(FieldOperand(rcx, 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(rcx, 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(rcx);
- __ CmpObjectType(rcx, JS_FUNCTION_TYPE, rcx);
- __ j(not_equal, &miss);
- __ Move(FieldOperand(rbx, rdx, times_pointer_size, FixedArray::kHeaderSize),
- TypeFeedbackVector::MegamorphicSentinel(isolate));
-
- __ bind(&call);
-
- // Increment the call count for megamorphic function calls.
- IncrementCallCount(masm, rbx, rdx);
-
- __ 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(rdi, &miss);
-
- // Goto miss case if we do not have a function.
- __ CmpObjectType(rdi, JS_FUNCTION_TYPE, rcx);
- __ j(not_equal, &miss);
-
- // Make sure the function is not the Array() function, which requires special
- // behavior on MISS.
- __ LoadNativeContextSlot(Context::ARRAY_FUNCTION_INDEX, rcx);
- __ cmpp(rdi, rcx);
- __ j(equal, &miss);
-
- // Make sure the function belongs to the same native context.
- __ movp(rcx, FieldOperand(rdi, JSFunction::kContextOffset));
- __ movp(rcx, ContextOperand(rcx, Context::NATIVE_CONTEXT_INDEX));
- __ cmpp(rcx, NativeContextOperand());
- __ j(not_equal, &miss);
-
- // Store the function. Use a stub since we need a frame for allocation.
- // rbx - vector
- // rdx - slot (needs to be in smi form)
- // rdi - function
- {
- FrameScope scope(masm, StackFrame::INTERNAL);
- CreateWeakCellStub create_stub(isolate);
-
- __ Integer32ToSmi(rax, rax);
- __ Integer32ToSmi(rdx, rdx);
- __ Push(rax);
- __ Push(rbx);
- __ Push(rdx);
- __ Push(rdi);
- __ Push(rsi);
- __ CallStub(&create_stub);
- __ Pop(rsi);
- __ Pop(rdi);
- __ Pop(rdx);
- __ Pop(rbx);
- __ Pop(rax);
- __ SmiToInteger32(rdx, rdx);
- __ SmiToInteger32(rax, rax);
- }
-
- __ 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.
- __ Integer32ToSmi(rax, rax);
- __ Push(rax);
-
- // Push the receiver and the function and feedback info.
- __ Integer32ToSmi(rdx, rdx);
- __ Push(rdi);
- __ Push(rbx);
- __ Push(rdx);
-
- // Call the entry.
- __ CallRuntime(Runtime::kCallIC_Miss);
-
- // Move result to edi and exit the internal frame.
- __ movp(rdi, rax);
-
- // Restore number of arguments.
- __ Pop(rax);
- __ SmiToInteger32(rax, rax);
-}
-
bool CEntryStub::NeedsImmovableCode() {
return false;
}
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