[turbofan] map vregs early

src/compiler/instruction-selector-impl.h

 // 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.
 
 #ifndef V8_COMPILER_INSTRUCTION_SELECTOR_IMPL_H_
 #define V8_COMPILER_INSTRUCTION_SELECTOR_IMPL_H_
 
 #include "src/compiler/generic-node-inl.h"
 #include "src/compiler/instruction.h"
 #include "src/compiler/instruction-selector.h"
@@ skipping 27 matching lines @@
   }
 
   InstructionOperand* DefineAsFixed(Node* node, DoubleRegister reg) {
     return Define(node, new (zone())
                   UnallocatedOperand(UnallocatedOperand::FIXED_DOUBLE_REGISTER,
                                      DoubleRegister::ToAllocationIndex(reg)));
   }
 
   InstructionOperand* DefineAsConstant(Node* node) {
     selector()->MarkAsDefined(node);
-    sequence()->AddConstant(node->id(), ToConstant(node));
-    return ConstantOperand::Create(node->id(), zone());
+    int virtual_register = sequence()->AddConstant(node, ToConstant(node));
+    return ConstantOperand::Create(virtual_register, zone());
   }
 
   InstructionOperand* DefineAsLocation(Node* node, LinkageLocation location,
                                        MachineType type) {
     return Define(node, ToUnallocatedOperand(location, type));
   }
 
   InstructionOperand* Use(Node* node) {
     return Use(node,
                new (zone()) UnallocatedOperand(
@@ skipping 99 matching lines @@
       default:
         break;
     }
     UNREACHABLE();
     return Constant(static_cast<int32_t>(0));
   }
 
   UnallocatedOperand* Define(Node* node, UnallocatedOperand* operand) {
     DCHECK_NOT_NULL(node);
     DCHECK_NOT_NULL(operand);
-    operand->set_virtual_register(node->id());
+    operand->set_virtual_register(
+        selector_->sequence()->GetVirtualRegister(node));
     selector()->MarkAsDefined(node);
     return operand;
   }
 
   UnallocatedOperand* Use(Node* node, UnallocatedOperand* operand) {
     DCHECK_NOT_NULL(node);
     DCHECK_NOT_NULL(operand);
-    operand->set_virtual_register(node->id());
+    operand->set_virtual_register(
+        selector_->sequence()->GetVirtualRegister(node));
     selector()->MarkAsUsed(node);
     return operand;
   }
 
   UnallocatedOperand* ToUnallocatedOperand(LinkageLocation location,
                                            MachineType type) {
     if (location.location_ == LinkageLocation::ANY_REGISTER) {
       return new (zone())
           UnallocatedOperand(UnallocatedOperand::MUST_HAVE_REGISTER);
     }
@@ skipping 166 matching lines @@
                : (frame_state_descriptor->GetTotalSize() +
                   1);  // Include deopt id.
   }
 };
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_COMPILER_INSTRUCTION_SELECTOR_IMPL_H_