[ignition/turbo] Add liveness analysis for the accumulator

src/compiler/ast-graph-builder.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/ast-graph-builder.h"
 
 #include "src/ast/compile-time-value.h"
 #include "src/ast/scopes.h"
 #include "src/compilation-info.h"
 #include "src/compiler.h"
@@ skipping 415 matching lines @@
       execution_control_(nullptr),
       execution_context_(nullptr),
       try_nesting_level_(0),
       input_buffer_size_(0),
       input_buffer_(nullptr),
       exit_controls_(local_zone),
       loop_assignment_analysis_(loop),
       type_hint_analysis_(type_hint_analysis),
       state_values_cache_(jsgraph),
       liveness_analyzer_(static_cast<size_t>(info->scope()->num_stack_slots()),
-                         local_zone),
+                         false, local_zone),
       frame_state_function_info_(common()->CreateFrameStateFunctionInfo(
           FrameStateType::kJavaScriptFunction, info->num_parameters() + 1,
           info->scope()->num_stack_slots(), info->shared_info())) {
   InitializeAstVisitor(info->isolate());
 }
 
 
 Node* AstGraphBuilder::GetFunctionClosureForContext() {
   DeclarationScope* closure_scope = current_scope()->GetClosureScope();
   if (closure_scope->is_script_scope() ||
@@ skipping 159 matching lines @@
 
 
 void AstGraphBuilder::ClearNonLiveSlotsInFrameStates() {
   if (!FLAG_analyze_environment_liveness ||
       !info()->is_deoptimization_enabled()) {
     return;
   }
 
   NonLiveFrameStateSlotReplacer replacer(
       &state_values_cache_, jsgraph()->OptimizedOutConstant(),
-      liveness_analyzer()->local_count(), local_zone());
+      liveness_analyzer()->local_count(), false, local_zone());
   Variable* arguments = info()->scope()->arguments();
   if (arguments != nullptr && arguments->IsStackAllocated()) {
     replacer.MarkPermanentlyLive(arguments->index());
   }
   liveness_analyzer()->Run(&replacer);
   if (FLAG_trace_environment_liveness) {
     OFStream os(stdout);
     liveness_analyzer()->Print(os);
   }
 }
@@ skipping 3728 matching lines @@
     // Phi does not exist yet, introduce one.
     value = NewPhi(inputs, value, control);
     value->ReplaceInput(inputs - 1, other);
   }
   return value;
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8