Version 3.19.17.

src/x64/full-codegen-x64.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 319 matching lines @@
 void FullCodeGenerator::EmitBackEdgeBookkeeping(IterationStatement* stmt,
                                                 Label* back_edge_target) {
   Comment cmnt(masm_, "[ Back edge bookkeeping");
   Label ok;
 
   int weight = 1;
   if (FLAG_weighted_back_edges) {
     ASSERT(back_edge_target->is_bound());
     int distance = masm_->SizeOfCodeGeneratedSince(back_edge_target);
     weight = Min(kMaxBackEdgeWeight,
-                 Max(1, distance / kCodeSizeMultiplier));
+                 Max(1, distance / kBackEdgeDistanceUnit));
   }
   EmitProfilingCounterDecrement(weight);
   __ j(positive, &ok, Label::kNear);
   InterruptStub stub;
   __ CallStub(&stub);
 
   // Record a mapping of this PC offset to the OSR id.  This is used to find
   // the AST id from the unoptimized code in order to use it as a key into
   // the deoptimization input data found in the optimized code.
   RecordBackEdge(stmt->OsrEntryId());
@@ skipping 20 matching lines @@
       __ CallRuntime(Runtime::kTraceExit, 1);
     }
     if (FLAG_interrupt_at_exit || FLAG_self_optimization) {
       // Pretend that the exit is a backwards jump to the entry.
       int weight = 1;
       if (info_->ShouldSelfOptimize()) {
         weight = FLAG_interrupt_budget / FLAG_self_opt_count;
       } else if (FLAG_weighted_back_edges) {
         int distance = masm_->pc_offset();
         weight = Min(kMaxBackEdgeWeight,
-                     Max(1, distance / kCodeSizeMultiplier));
+                     Max(1, distance / kBackEdgeDistanceUnit));
       }
       EmitProfilingCounterDecrement(weight);
       Label ok;
       __ j(positive, &ok, Label::kNear);
       __ push(rax);
       if (info_->ShouldSelfOptimize() && FLAG_direct_self_opt) {
         __ push(Operand(rbp, JavaScriptFrameConstants::kFunctionOffset));
         __ CallRuntime(Runtime::kOptimizeFunctionOnNextCall, 1);
       } else {
         InterruptStub stub;
@@ skipping 1413 matching lines @@
   for (int i = 0; i < length; i++) {
     Expression* subexpr = subexprs->at(i);
     // If the subexpression is a literal or a simple materialized literal it
     // is already set in the cloned array.
     if (subexpr->AsLiteral() != NULL ||
         CompileTimeValue::IsCompileTimeValue(subexpr)) {
       continue;
     }
 
     if (!result_saved) {
-      __ push(rax);  // array literal
-      __ Push(Smi::FromInt(expr->literal_index()));
+      __ push(rax);
       result_saved = true;
     }
     VisitForAccumulatorValue(subexpr);
 
     if (IsFastObjectElementsKind(constant_elements_kind)) {
       // Fast-case array literal with ElementsKind of FAST_*_ELEMENTS, they
       // cannot transition and don't need to call the runtime stub.
       int offset = FixedArray::kHeaderSize + (i * kPointerSize);
-      __ movq(rbx, Operand(rsp, kPointerSize));  // Copy of array literal.
+      __ movq(rbx, Operand(rsp, 0));  // Copy of array literal.
       __ movq(rbx, FieldOperand(rbx, JSObject::kElementsOffset));
       // Store the subexpression value in the array's elements.
       __ movq(FieldOperand(rbx, offset), result_register());
       // Update the write barrier for the array store.
       __ RecordWriteField(rbx, offset, result_register(), rcx,
                           kDontSaveFPRegs,
                           EMIT_REMEMBERED_SET,
                           INLINE_SMI_CHECK);
     } else {
       // Store the subexpression value in the array's elements.
+      __ movq(rbx, Operand(rsp, 0));  // Copy of array literal.
+      __ movq(rdi, FieldOperand(rbx, JSObject::kMapOffset));
       __ Move(rcx, Smi::FromInt(i));
+      __ Move(rdx, Smi::FromInt(expr->literal_index()));
       StoreArrayLiteralElementStub stub;
       __ CallStub(&stub);
     }
 
     PrepareForBailoutForId(expr->GetIdForElement(i), NO_REGISTERS);
   }
 
   if (result_saved) {
-    __ addq(rsp, Immediate(kPointerSize));  // literal index
     context()->PlugTOS();
   } else {
     context()->Plug(rax);
   }
 }
 
 
 void FullCodeGenerator::VisitAssignment(Assignment* expr) {
   Comment cmnt(masm_, "[ Assignment");
   // Invalid left-hand sides are rewritten to have a 'throw ReferenceError'
@@ skipping 3024 matching lines @@
   *context_length = 0;
   return previous_;
 }
 
 
 #undef __
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_X64