X87: [crankshaft] [ia32] Remove dynamic frame alignment optimization.

src/crankshaft/x87/lithium-codegen-x87.h

 // Copyright 2012 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_CRANKSHAFT_X87_LITHIUM_CODEGEN_X87_H_
 #define V8_CRANKSHAFT_X87_LITHIUM_CODEGEN_X87_H_
 
 #include <map>
 
 #include "src/ast/scopes.h"
@@ skipping 13 matching lines @@
 class LGapNode;
 class SafepointGenerator;
 
 class LCodeGen: public LCodeGenBase {
  public:
   LCodeGen(LChunk* chunk, MacroAssembler* assembler, CompilationInfo* info)
       : LCodeGenBase(chunk, assembler, info),
         jump_table_(4, info->zone()),
         scope_(info->scope()),
         deferred_(8, info->zone()),
-        dynamic_frame_alignment_(false),
-        support_aligned_spilled_doubles_(false),
         frame_is_built_(false),
         x87_stack_(assembler),
         safepoints_(info->zone()),
         resolver_(this),
         expected_safepoint_kind_(Safepoint::kSimple) {
     PopulateDeoptimizationLiteralsWithInlinedFunctions();
   }
 
   int LookupDestination(int block_id) const {
     return chunk()->LookupDestination(block_id);
@@ skipping 276 matching lines @@
   void DoLoadKeyedFixedArray(LLoadKeyed* instr);
   void DoStoreKeyedExternalArray(LStoreKeyed* instr);
   void DoStoreKeyedFixedDoubleArray(LStoreKeyed* instr);
   void DoStoreKeyedFixedArray(LStoreKeyed* instr);
 
   template <class T>
   void EmitVectorLoadICRegisters(T* instr);
   template <class T>
   void EmitVectorStoreICRegisters(T* instr);
 
-  void EmitReturn(LReturn* instr, bool dynamic_frame_alignment);
+  void EmitReturn(LReturn* instr);
 
   // Emits code for pushing either a tagged constant, a (non-double)
   // register, or a stack slot operand.
   void EmitPushTaggedOperand(LOperand* operand);
 
   void X87Fld(Operand src, X87OperandType opts);
 
   void EmitFlushX87ForDeopt();
   void FlushX87StackIfNecessary(LInstruction* instr) {
     x87_stack_.FlushIfNecessary(instr, this);
   }
   friend class LGapResolver;
 
 #ifdef _MSC_VER
   // On windows, you may not access the stack more than one page below
   // the most recently mapped page. To make the allocated area randomly
   // accessible, we write an arbitrary value to each page in range
   // esp + offset - page_size .. esp in turn.
   void MakeSureStackPagesMapped(int offset);
 #endif
 
   ZoneList<Deoptimizer::JumpTableEntry> jump_table_;
   Scope* const scope_;
   ZoneList<LDeferredCode*> deferred_;
-  bool dynamic_frame_alignment_;
-  bool support_aligned_spilled_doubles_;
   bool frame_is_built_;
 
   class X87Stack : public ZoneObject {
    public:
     explicit X87Stack(MacroAssembler* masm)
         : stack_depth_(0), is_mutable_(true), masm_(masm) { }
     explicit X87Stack(const X87Stack& other)
         : stack_depth_(other.stack_depth_), is_mutable_(false), masm_(masm()) {
       for (int i = 0; i < stack_depth_; i++) {
         stack_[i] = other.stack_[i];
@@ skipping 121 matching lines @@
   Label* external_exit_;
   Label done_;
   int instruction_index_;
   LCodeGen::X87Stack x87_stack_;
 };
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_CRANKSHAFT_X87_LITHIUM_CODEGEN_X87_H_