Rollback trunk to 3.21.16.2

src/x64/macro-assembler-x64.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 673 matching lines @@
   ASSERT(static_cast<int>(offset) == offset);
   return static_cast<int>(offset);
 }
 
 
 void MacroAssembler::PrepareCallApiFunction(int arg_stack_space) {
   EnterApiExitFrame(arg_stack_space);
 }
 
 
-void MacroAssembler::CallApiFunctionAndReturn(
-    Address function_address,
-    Address thunk_address,
-    Register thunk_last_arg,
-    int stack_space,
-    Operand return_value_operand,
-    Operand* context_restore_operand) {
+void MacroAssembler::CallApiFunctionAndReturn(Address function_address,
+                                              Address thunk_address,
+                                              Register thunk_last_arg,
+                                              int stack_space,
+                                              int return_value_offset) {
   Label prologue;
   Label promote_scheduled_exception;
-  Label exception_handled;
   Label delete_allocated_handles;
   Label leave_exit_frame;
   Label write_back;
 
   Factory* factory = isolate()->factory();
   ExternalReference next_address =
       ExternalReference::handle_scope_next_address(isolate());
   const int kNextOffset = 0;
   const int kLimitOffset = Offset(
       ExternalReference::handle_scope_limit_address(isolate()),
@@ skipping 50 matching lines @@
   if (FLAG_log_timer_events) {
     FrameScope frame(this, StackFrame::MANUAL);
     PushSafepointRegisters();
     PrepareCallCFunction(1);
     LoadAddress(arg_reg_1, ExternalReference::isolate_address(isolate()));
     CallCFunction(ExternalReference::log_leave_external_function(isolate()), 1);
     PopSafepointRegisters();
   }
 
   // Load the value from ReturnValue
-  movq(rax, return_value_operand);
+  movq(rax, Operand(rbp, return_value_offset * kPointerSize));
   bind(&prologue);
 
   // No more valid handles (the result handle was the last one). Restore
   // previous handle scope.
   subl(Operand(base_reg, kLevelOffset), Immediate(1));
   movq(Operand(base_reg, kNextOffset), prev_next_address_reg);
   cmpq(prev_limit_reg, Operand(base_reg, kLimitOffset));
   j(not_equal, &delete_allocated_handles);
   bind(&leave_exit_frame);
 
   // Check if the function scheduled an exception.
   movq(rsi, scheduled_exception_address);
   Cmp(Operand(rsi, 0), factory->the_hole_value());
   j(not_equal, &promote_scheduled_exception);
-  bind(&exception_handled);
 
 #if ENABLE_EXTRA_CHECKS
   // Check if the function returned a valid JavaScript value.
   Label ok;
   Register return_value = rax;
   Register map = rcx;
 
   JumpIfSmi(return_value, &ok, Label::kNear);
   movq(map, FieldOperand(return_value, HeapObject::kMapOffset));
 
@@ skipping 16 matching lines @@
   j(equal, &ok, Label::kNear);
 
   CompareRoot(return_value, Heap::kNullValueRootIndex);
   j(equal, &ok, Label::kNear);
 
   Abort(kAPICallReturnedInvalidObject);
 
   bind(&ok);
 #endif
 
-  bool restore_context = context_restore_operand != NULL;
-  if (restore_context) {
-    movq(rsi, *context_restore_operand);
-  }
-  LeaveApiExitFrame(!restore_context);
+  LeaveApiExitFrame();
   ret(stack_space * kPointerSize);
 
   bind(&promote_scheduled_exception);
-  {
-    FrameScope frame(this, StackFrame::INTERNAL);
-    CallRuntime(Runtime::kPromoteScheduledException, 0);
-  }
-  jmp(&exception_handled);
+  TailCallRuntime(Runtime::kPromoteScheduledException, 0, 1);
 
   // HandleScope limit has changed. Delete allocated extensions.
   bind(&delete_allocated_handles);
   movq(Operand(base_reg, kLimitOffset), prev_limit_reg);
   movq(prev_limit_reg, rax);
   LoadAddress(arg_reg_1, ExternalReference::isolate_address(isolate()));
   LoadAddress(rax,
               ExternalReference::delete_handle_scope_extensions(isolate()));
   call(rax);
   movq(rax, prev_limit_reg);
@@ skipping 92 matching lines @@
   }
   for (int i = kNumberOfSavedRegs - 1; i >= 0; i--) {
     Register reg = saved_regs[i];
     if (!reg.is(exclusion1) && !reg.is(exclusion2) && !reg.is(exclusion3)) {
       pop(reg);
     }
   }
 }
 
 
-void MacroAssembler::Cvtlsi2sd(XMMRegister dst, Register src) {
-  xorps(dst, dst);
-  cvtlsi2sd(dst, src);
-}
-
-
-void MacroAssembler::Cvtlsi2sd(XMMRegister dst, const Operand& src) {
-  xorps(dst, dst);
-  cvtlsi2sd(dst, src);
-}
-
-
 void MacroAssembler::Set(Register dst, int64_t x) {
   if (x == 0) {
     xorl(dst, dst);
   } else if (is_uint32(x)) {
     movl(dst, Immediate(static_cast<uint32_t>(x)));
   } else if (is_int32(x)) {
     movq(dst, Immediate(static_cast<int32_t>(x)));
   } else {
     movq(dst, x, RelocInfo::NONE64);
   }
@@ skipping 1961 matching lines @@
   // the double array.
   Set(kScratchRegister, BitCast<uint64_t>(
       FixedDoubleArray::canonical_not_the_hole_nan_as_double()));
   movq(xmm_scratch, kScratchRegister);
   jmp(&have_double_value, Label::kNear);
 
   bind(&smi_value);
   // Value is a smi. convert to a double and store.
   // Preserve original value.
   SmiToInteger32(kScratchRegister, maybe_number);
-  Cvtlsi2sd(xmm_scratch, kScratchRegister);
+  cvtlsi2sd(xmm_scratch, kScratchRegister);
   movsd(FieldOperand(elements, index, times_8,
                      FixedDoubleArray::kHeaderSize - elements_offset),
         xmm_scratch);
   bind(&done);
 }
 
 
 void MacroAssembler::CompareMap(Register obj,
                                 Handle<Map> map,
                                 Label* early_success) {
@@ skipping 112 matching lines @@
 }
 
 
 void MacroAssembler::DoubleToI(Register result_reg,
                                XMMRegister input_reg,
                                XMMRegister scratch,
                                MinusZeroMode minus_zero_mode,
                                Label* conversion_failed,
                                Label::Distance dst) {
   cvttsd2si(result_reg, input_reg);
-  Cvtlsi2sd(xmm0, result_reg);
+  cvtlsi2sd(xmm0, result_reg);
   ucomisd(xmm0, input_reg);
   j(not_equal, conversion_failed, dst);
   j(parity_even, conversion_failed, dst);  // NaN.
   if (minus_zero_mode == FAIL_ON_MINUS_ZERO) {
     Label done;
     // The integer converted back is equal to the original. We
     // only have to test if we got -0 as an input.
     testl(result_reg, result_reg);
     j(not_zero, &done, Label::kNear);
     movmskpd(result_reg, input_reg);
@@ skipping 16 matching lines @@
   Label done;
   ASSERT(!temp.is(xmm0));
 
   // Heap number map check.
   CompareRoot(FieldOperand(input_reg, HeapObject::kMapOffset),
               Heap::kHeapNumberMapRootIndex);
   j(not_equal, lost_precision, dst);
 
   movsd(xmm0, FieldOperand(input_reg, HeapNumber::kValueOffset));
   cvttsd2si(result_reg, xmm0);
-  Cvtlsi2sd(temp, result_reg);
+  cvtlsi2sd(temp, result_reg);
   ucomisd(xmm0, temp);
   RecordComment("Deferred TaggedToI: lost precision");
   j(not_equal, lost_precision, dst);
   RecordComment("Deferred TaggedToI: NaN");
   j(parity_even, lost_precision, dst);  // NaN.
   if (minus_zero_mode == FAIL_ON_MINUS_ZERO) {
     testl(result_reg, result_reg);
     j(not_zero, &done, Label::kNear);
     movmskpd(result_reg, xmm0);
     andl(result_reg, Immediate(1));
@@ skipping 575 matching lines @@
   // Get the return address from the stack and restore the frame pointer.
   movq(rcx, Operand(rbp, 1 * kPointerSize));
   movq(rbp, Operand(rbp, 0 * kPointerSize));
 
   // Drop everything up to and including the arguments and the receiver
   // from the caller stack.
   lea(rsp, Operand(r15, 1 * kPointerSize));
 
   PushReturnAddressFrom(rcx);
 
-  LeaveExitFrameEpilogue(true);
+  LeaveExitFrameEpilogue();
 }
 
 
-void MacroAssembler::LeaveApiExitFrame(bool restore_context) {
+void MacroAssembler::LeaveApiExitFrame() {
   movq(rsp, rbp);
   pop(rbp);
 
-  LeaveExitFrameEpilogue(restore_context);
+  LeaveExitFrameEpilogue();
 }
 
 
-void MacroAssembler::LeaveExitFrameEpilogue(bool restore_context) {
+void MacroAssembler::LeaveExitFrameEpilogue() {
   // Restore current context from top and clear it in debug mode.
   ExternalReference context_address(Isolate::kContextAddress, isolate());
   Operand context_operand = ExternalOperand(context_address);
-  if (restore_context) {
-    movq(rsi, context_operand);
-  }
+  movq(rsi, context_operand);
 #ifdef DEBUG
   movq(context_operand, Immediate(0));
 #endif
 
   // Clear the top frame.
   ExternalReference c_entry_fp_address(Isolate::kCEntryFPAddress,
                                        isolate());
   Operand c_entry_fp_operand = ExternalOperand(c_entry_fp_address);
   movq(c_entry_fp_operand, Immediate(0));
 }
@@ skipping 1094 matching lines @@
   j(greater, &no_memento_available);
   CompareRoot(MemOperand(scratch_reg, -AllocationMemento::kSize),
               Heap::kAllocationMementoMapRootIndex);
   bind(&no_memento_available);
 }
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_X64