Add HasProperty code stub that tries simple lookups or jumps to runtime otherwise.

src/full-codegen/s390/full-codegen-s390.cc

 // Copyright 2015 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.
 
 #if V8_TARGET_ARCH_S390
 
 #include "src/ast/scopes.h"
 #include "src/code-factory.h"
 #include "src/code-stubs.h"
 #include "src/codegen.h"
@@ skipping 436 matching lines @@
       int32_t arg_count = info_->scope()->num_parameters() + 1;
       int32_t sp_delta = arg_count * kPointerSize;
       SetReturnPosition(literal());
       __ LeaveFrame(StackFrame::JAVA_SCRIPT, sp_delta);
 
       __ Ret();
     }
   }
 }
 
+void FullCodeGenerator::RestoreContext() {

[Toon Verwaest, 2016/04/20 10:00:04]

What about using this helper for the other lines that do it, as useful
side-cleanup?

[Igor Sheludko, 2016/04/20 13:14:56]

Done.

+  __ LoadP(cp, MemOperand(fp, StandardFrameConstants::kContextOffset));
+}
+
 void FullCodeGenerator::StackValueContext::Plug(Variable* var) const {
   DCHECK(var->IsStackAllocated() || var->IsContextSlot());
   codegen()->GetVar(result_register(), var);
   codegen()->PushOperand(result_register());
 }
 
 void FullCodeGenerator::EffectContext::Plug(Heap::RootListIndex index) const {}
 
 void FullCodeGenerator::AccumulatorValueContext::Plug(
     Heap::RootListIndex index) const {
@@ skipping 3149 matching lines @@
   Label* if_false = NULL;
   Label* fall_through = NULL;
   context()->PrepareTest(&materialize_true, &materialize_false, &if_true,
                          &if_false, &fall_through);
 
   Token::Value op = expr->op();
   VisitForStackValue(expr->left());
   switch (op) {
     case Token::IN:
       VisitForStackValue(expr->right());
-      CallRuntimeWithOperands(Runtime::kHasProperty);
+      EmitInExpression();
       PrepareForBailoutBeforeSplit(expr, false, NULL, NULL);
       __ CompareRoot(r2, Heap::kTrueValueRootIndex);
       Split(eq, if_true, if_false, fall_through);
       break;
 
     case Token::INSTANCEOF: {
       VisitForAccumulatorValue(expr->right());
       PopOperand(r3);
       InstanceOfStub stub(isolate());
       __ CallStub(&stub);
@@ skipping 233 matching lines @@
   DCHECK(kOSRBranchInstruction == br_instr);
 
   DCHECK(interrupt_address ==
          isolate->builtins()->OnStackReplacement()->entry());
   return ON_STACK_REPLACEMENT;
 }
 
 }  // namespace internal
 }  // namespace v8
 #endif  // V8_TARGET_ARCH_S390