[turbofan] Introduce DeoptimizeIf And DeoptimizeUnless common operators.

src/compiler/code-generator.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_CODE_GENERATOR_H_
 #define V8_COMPILER_CODE_GENERATOR_H_
 
 #include "src/compiler/gap-resolver.h"
 #include "src/compiler/instruction.h"
 #include "src/deoptimizer.h"
 #include "src/macro-assembler.h"
 #include "src/safepoint-table.h"
 
 namespace v8 {
 namespace internal {
 namespace compiler {
 
 // Forward declarations.
+class DeoptimizationExit;
 class FrameAccessState;
 class Linkage;
 class OutOfLineCode;
 
 struct BranchInfo {
   FlagsCondition condition;
   Label* true_label;
   Label* false_label;
   bool fallthru;
 };
@@ skipping 108 matching lines @@
   // Emits a jump table.
   void AssembleJumpTable(Label** targets, size_t target_count);
 
   // ===========================================================================
   // ================== Deoptimization table construction. =====================
   // ===========================================================================
 
   void RecordCallPosition(Instruction* instr);
   void PopulateDeoptimizationData(Handle<Code> code);
   int DefineDeoptimizationLiteral(Handle<Object> literal);
-  FrameStateDescriptor* GetFrameStateDescriptor(
-      Instruction* instr, size_t frame_access_state_offset);
+  FrameStateDescriptor* GetFrameStateDescriptor(Instruction* instr,
+                                                size_t frame_state_offset);
   int BuildTranslation(Instruction* instr, int pc_offset,
-                       size_t frame_access_state_offset,
+                       size_t frame_state_offset,
                        OutputFrameStateCombine state_combine);
   void BuildTranslationForFrameStateDescriptor(
       FrameStateDescriptor* descriptor, InstructionOperandIterator* iter,
       Translation* translation, OutputFrameStateCombine state_combine);
   void TranslateStateValueDescriptor(StateValueDescriptor* desc,
                                      Translation* translation,
                                      InstructionOperandIterator* iter);
   void TranslateFrameStateDescriptorOperands(FrameStateDescriptor* desc,
                                              InstructionOperandIterator* iter,
                                              OutputFrameStateCombine combine,
                                              Translation* translation);
   void AddTranslationForOperand(Translation* translation, Instruction* instr,
                                 InstructionOperand* op, MachineType type);
   void AddNopForSmiCodeInlining();
   void EnsureSpaceForLazyDeopt();
   void MarkLazyDeoptSite();
 
+  DeoptimizationExit* AddDeoptimizationExit(Instruction* instr,
+                                            size_t frame_state_offset);
+
   // Converts the delta in the number of stack parameter passed from a tail
   // caller to the callee into the distance (in pointers) the SP must be
   // adjusted, taking frame elision and other relevant factors into
   // consideration.
   int TailCallFrameStackSlotDelta(int stack_param_delta);
 
   // ===========================================================================
 
   struct DeoptimizationState : ZoneObject {
    public:
@@ skipping 25 matching lines @@
   InstructionSequence* const code_;
   CompilationInfo* const info_;
   Label* const labels_;
   Label return_label_;
   RpoNumber current_block_;
   SourcePosition current_source_position_;
   MacroAssembler masm_;
   GapResolver resolver_;
   SafepointTableBuilder safepoints_;
   ZoneVector<HandlerInfo> handlers_;
+  ZoneDeque<DeoptimizationExit*> deoptimization_exits_;
   ZoneDeque<DeoptimizationState*> deoptimization_states_;
   ZoneDeque<Handle<Object>> deoptimization_literals_;
   size_t inlined_function_count_;
   TranslationBuffer translations_;
   int last_lazy_deopt_pc_;
   JumpTable* jump_tables_;
   OutOfLineCode* ools_;
   int osr_pc_offset_;
 };
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_COMPILER_CODE_GENERATOR_H