[turbofan] add non fixed slot constraint to register allocator

src/compiler/instruction-selector.cc

 // Copyright 2014 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.
 
 #include "src/compiler/instruction-selector.h"
 
 #include <limits>
 
 #include "src/compiler/instruction-selector-impl.h"
 #include "src/compiler/node-matchers.h"
@@ skipping 1013 matching lines @@
   Node* outer_node = state->InputAt(4);
   if (outer_node->opcode() == IrOpcode::kFrameState) {
     outer_state = GetFrameStateDescriptor(outer_node);
   }
 
   return new (instruction_zone()) FrameStateDescriptor(
       instruction_zone(), state_info, parameters, locals, stack, outer_state);
 }
 
 
-static InstructionOperand UseOrImmediate(OperandGenerator* g, Node* input) {
+static InstructionOperand SlotOrImmediate(OperandGenerator* g, Node* input) {
   switch (input->opcode()) {
     case IrOpcode::kInt32Constant:
     case IrOpcode::kNumberConstant:
     case IrOpcode::kFloat64Constant:
     case IrOpcode::kHeapConstant:
       return g->UseImmediate(input);
     default:
-      return g->UseUnique(input);
+      return g->UseUniqueSlot(input);
   }
 }
 
 
 void InstructionSelector::AddFrameStateInputs(
     Node* state, InstructionOperandVector* inputs,
     FrameStateDescriptor* descriptor) {
   DCHECK_EQ(IrOpcode::kFrameState, state->op()->opcode());
 
   if (descriptor->outer_state() != NULL) {
@@ skipping 14 matching lines @@
   DCHECK_EQ(descriptor->locals_count(), StateValuesAccess(locals).size());
   DCHECK_EQ(descriptor->stack_count(), StateValuesAccess(stack).size());
 
   ZoneVector<MachineType> types(instruction_zone());
   types.reserve(descriptor->GetSize());
 
   OperandGenerator g(this);
   size_t value_index = 0;
   for (StateValuesAccess::TypedNode input_node :
        StateValuesAccess(parameters)) {
-    inputs->push_back(UseOrImmediate(&g, input_node.node));
+    inputs->push_back(SlotOrImmediate(&g, input_node.node));
     descriptor->SetType(value_index++, input_node.type);
   }
   if (descriptor->HasContext()) {
-    inputs->push_back(UseOrImmediate(&g, context));
+    inputs->push_back(SlotOrImmediate(&g, context));
     descriptor->SetType(value_index++, kMachAnyTagged);
   }
   for (StateValuesAccess::TypedNode input_node : StateValuesAccess(locals)) {
-    inputs->push_back(UseOrImmediate(&g, input_node.node));
+    inputs->push_back(SlotOrImmediate(&g, input_node.node));
     descriptor->SetType(value_index++, input_node.type);
   }
   for (StateValuesAccess::TypedNode input_node : StateValuesAccess(stack)) {
-    inputs->push_back(UseOrImmediate(&g, input_node.node));
+    inputs->push_back(SlotOrImmediate(&g, input_node.node));
     descriptor->SetType(value_index++, input_node.type);
   }
   DCHECK(value_index == descriptor->GetSize());
 }
 
 
 #if !V8_TURBOFAN_BACKEND
 
 #define DECLARE_UNIMPLEMENTED_SELECTOR(x) \
   void InstructionSelector::Visit##x(Node* node) { UNIMPLEMENTED(); }
@@ skipping 24 matching lines @@
 MachineOperatorBuilder::Flags
 InstructionSelector::SupportedMachineOperatorFlags() {
   return MachineOperatorBuilder::Flag::kNoFlags;
 }
 
 #endif  // !V8_TURBOFAN_BACKEND
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8