[turbofan] Add general support for sp-based frame access

src/compiler/code-generator.cc

 // Copyright 2013 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/code-generator.h"
 
 #include "src/address-map.h"
 #include "src/compiler/code-generator-impl.h"
 #include "src/compiler/linkage.h"
 #include "src/compiler/pipeline.h"
@@ skipping 16 matching lines @@
  private:
   Label label_;
   JumpTable* const next_;
   Label** const targets_;
   size_t const target_count_;
 };
 
 
 CodeGenerator::CodeGenerator(Frame* frame, Linkage* linkage,
                              InstructionSequence* code, CompilationInfo* info)
-    : frame_(frame),
+    : frame_access_state_(new (code->zone()) FrameAccessState(frame)),
       linkage_(linkage),
       code_(code),
       info_(info),
       labels_(zone()->NewArray<Label>(code->InstructionBlockCount())),
       current_block_(RpoNumber::Invalid()),
       current_source_position_(SourcePosition::Unknown()),
       masm_(info->isolate(), NULL, 0),
       resolver_(this),
       safepoints_(code->zone()),
       handlers_(code->zone()),
       deoptimization_states_(code->zone()),
       deoptimization_literals_(code->zone()),
       inlined_function_count_(0),
       translations_(code->zone()),
       last_lazy_deopt_pc_(0),
       jump_tables_(nullptr),
       ools_(nullptr),
-      osr_pc_offset_(-1),
-      needs_frame_(frame->GetSpillSlotCount() > 0 || code->ContainsCall()) {
+      osr_pc_offset_(-1) {
   for (int i = 0; i < code->InstructionBlockCount(); ++i) {
     new (&labels_[i]) Label;
   }
+  if (code->ContainsCall()) {
+    frame->MarkNeedsFrame();
+  }
 }
 
 
 Handle<Code> CodeGenerator::GenerateCode() {
   CompilationInfo* info = this->info();
 
   // Open a frame scope to indicate that there is a frame on the stack.  The
   // MANUAL indicates that the scope shouldn't actually generate code to set up
   // the frame (that is done in AssemblePrologue).
   FrameScope frame_scope(masm(), StackFrame::MANUAL);
@@ skipping 619 matching lines @@
     : frame_(gen->frame()), masm_(gen->masm()), next_(gen->ools_) {
   gen->ools_ = this;
 }
 
 
 OutOfLineCode::~OutOfLineCode() {}
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8