Revert of Reduce duplicate code in full-codegen across platforms.

src/ppc/full-codegen-ppc.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/v8.h"
 
 #if V8_TARGET_ARCH_PPC
 
 #include "src/code-factory.h"
 #include "src/code-stubs.h"
@@ skipping 479 matching lines @@
       int32_t sp_delta = arg_count * kPointerSize;
       SetReturnPosition(function());
       int no_frame_start = __ LeaveFrame(StackFrame::JAVA_SCRIPT, sp_delta);
       __ blr();
       info_->AddNoFrameRange(no_frame_start, masm_->pc_offset());
     }
   }
 }
 
 
+void FullCodeGenerator::EffectContext::Plug(Variable* var) const {
+  DCHECK(var->IsStackAllocated() || var->IsContextSlot());
+}
+
+
+void FullCodeGenerator::AccumulatorValueContext::Plug(Variable* var) const {
+  DCHECK(var->IsStackAllocated() || var->IsContextSlot());
+  codegen()->GetVar(result_register(), var);
+}
+
+
 void FullCodeGenerator::StackValueContext::Plug(Variable* var) const {
   DCHECK(var->IsStackAllocated() || var->IsContextSlot());
   codegen()->GetVar(result_register(), var);
   __ push(result_register());
 }
 
 
+void FullCodeGenerator::TestContext::Plug(Variable* var) const {
+  DCHECK(var->IsStackAllocated() || var->IsContextSlot());
+  // For simplicity we always test the accumulator register.
+  codegen()->GetVar(result_register(), var);
+  codegen()->PrepareForBailoutBeforeSplit(condition(), false, NULL, NULL);
+  codegen()->DoTest(this);
+}
+
+
 void FullCodeGenerator::EffectContext::Plug(Heap::RootListIndex index) const {}
 
 
 void FullCodeGenerator::AccumulatorValueContext::Plug(
     Heap::RootListIndex index) const {
   __ LoadRoot(result_register(), index);
 }
 
 
 void FullCodeGenerator::StackValueContext::Plug(
@@ skipping 129 matching lines @@
 }
 
 
 void FullCodeGenerator::TestContext::Plug(Label* materialize_true,
                                           Label* materialize_false) const {
   DCHECK(materialize_true == true_label_);
   DCHECK(materialize_false == false_label_);
 }
 
 
+void FullCodeGenerator::EffectContext::Plug(bool flag) const {}
+
+
 void FullCodeGenerator::AccumulatorValueContext::Plug(bool flag) const {
   Heap::RootListIndex value_root_index =
       flag ? Heap::kTrueValueRootIndex : Heap::kFalseValueRootIndex;
   __ LoadRoot(result_register(), value_root_index);
 }
 
 
 void FullCodeGenerator::StackValueContext::Plug(bool flag) const {
   Heap::RootListIndex value_root_index =
       flag ? Heap::kTrueValueRootIndex : Heap::kFalseValueRootIndex;
@@ skipping 231 matching lines @@
       __ Push(cp, r5, r4);
       // Push initial value for function declaration.
       VisitForStackValue(declaration->fun());
       __ CallRuntime(Runtime::kDeclareLookupSlot, 4);
       break;
     }
   }
 }
 
 
+void FullCodeGenerator::VisitImportDeclaration(ImportDeclaration* declaration) {
+  VariableProxy* proxy = declaration->proxy();
+  Variable* variable = proxy->var();
+  switch (variable->location()) {
+    case VariableLocation::GLOBAL:
+    case VariableLocation::UNALLOCATED:
+      // TODO(rossberg)
+      break;
+
+    case VariableLocation::CONTEXT: {
+      Comment cmnt(masm_, "[ ImportDeclaration");
+      EmitDebugCheckDeclarationContext(variable);
+      // TODO(rossberg)
+      break;
+    }
+
+    case VariableLocation::PARAMETER:
+    case VariableLocation::LOCAL:
+    case VariableLocation::LOOKUP:
+      UNREACHABLE();
+  }
+}
+
+
+void FullCodeGenerator::VisitExportDeclaration(ExportDeclaration* declaration) {
+  // TODO(rossberg)
+}
+
+
 void FullCodeGenerator::DeclareGlobals(Handle<FixedArray> pairs) {
   // Call the runtime to declare the globals.
   // The context is the first argument.
   __ mov(r4, Operand(pairs));
   __ LoadSmiLiteral(r3, Smi::FromInt(DeclareGlobalsFlags()));
   __ Push(cp, r4, r3);
   __ CallRuntime(Runtime::kDeclareGlobals, 3);
   // Return value is ignored.
 }
 
@@ skipping 312 matching lines @@
     __ mov(r3, Operand(info));
     __ LoadRoot(
         r4, pretenure ? Heap::kTrueValueRootIndex : Heap::kFalseValueRootIndex);
     __ Push(cp, r3, r4);
     __ CallRuntime(Runtime::kNewClosure, 3);
   }
   context()->Plug(r3);
 }
 
 
+void FullCodeGenerator::VisitVariableProxy(VariableProxy* expr) {
+  Comment cmnt(masm_, "[ VariableProxy");
+  EmitVariableLoad(expr);
+}
+
+
 void FullCodeGenerator::EmitSetHomeObjectIfNeeded(Expression* initializer,
                                                   int offset,
                                                   FeedbackVectorICSlot slot) {
   if (NeedsHomeObject(initializer)) {
     __ LoadP(StoreDescriptor::ReceiverRegister(), MemOperand(sp));
     __ mov(StoreDescriptor::NameRegister(),
            Operand(isolate()->factory()->home_object_symbol()));
     __ LoadP(StoreDescriptor::ValueRegister(),
              MemOperand(sp, offset * kPointerSize));
     if (FLAG_vector_stores) EmitLoadStoreICSlot(slot);
@@ skipping 2600 matching lines @@
   __ bind(&null);
   __ LoadRoot(r3, Heap::kNullValueRootIndex);
 
   // All done.
   __ bind(&done);
 
   context()->Plug(r3);
 }
 
 
+void FullCodeGenerator::EmitSubString(CallRuntime* expr) {
+  // Load the arguments on the stack and call the stub.
+  SubStringStub stub(isolate());
+  ZoneList<Expression*>* args = expr->arguments();
+  DCHECK(args->length() == 3);
+  VisitForStackValue(args->at(0));
+  VisitForStackValue(args->at(1));
+  VisitForStackValue(args->at(2));
+  __ CallStub(&stub);
+  context()->Plug(r3);
+}
+
+
+void FullCodeGenerator::EmitRegExpExec(CallRuntime* expr) {
+  // Load the arguments on the stack and call the stub.
+  RegExpExecStub stub(isolate());
+  ZoneList<Expression*>* args = expr->arguments();
+  DCHECK(args->length() == 4);
+  VisitForStackValue(args->at(0));
+  VisitForStackValue(args->at(1));
+  VisitForStackValue(args->at(2));
+  VisitForStackValue(args->at(3));
+  __ CallStub(&stub);
+  context()->Plug(r3);
+}
+
+
 void FullCodeGenerator::EmitValueOf(CallRuntime* expr) {
   ZoneList<Expression*>* args = expr->arguments();
   DCHECK(args->length() == 1);
   VisitForAccumulatorValue(args->at(0));  // Load the object.
 
   Label done;
   // If the object is a smi return the object.
   __ JumpIfSmi(r3, &done);
   // If the object is not a value type, return the object.
   __ CompareObjectType(r3, r4, r4, JS_VALUE_TYPE);
@@ skipping 125 matching lines @@
   }
 
   __ SmiUntag(value);
   __ addi(ip, string, Operand(SeqTwoByteString::kHeaderSize - kHeapObjectTag));
   __ SmiToShortArrayOffset(r0, index);
   __ sthx(value, MemOperand(ip, r0));
   context()->Plug(string);
 }
 
 
+void FullCodeGenerator::EmitMathPow(CallRuntime* expr) {
+  // Load the arguments on the stack and call the runtime function.
+  ZoneList<Expression*>* args = expr->arguments();
+  DCHECK(args->length() == 2);
+  VisitForStackValue(args->at(0));
+  VisitForStackValue(args->at(1));
+  MathPowStub stub(isolate(), MathPowStub::ON_STACK);
+  __ CallStub(&stub);
+  context()->Plug(r3);
+}
+
+
 void FullCodeGenerator::EmitSetValueOf(CallRuntime* expr) {
   ZoneList<Expression*>* args = expr->arguments();
   DCHECK(args->length() == 2);
   VisitForStackValue(args->at(0));        // Load the object.
   VisitForAccumulatorValue(args->at(1));  // Load the value.
   __ pop(r4);                             // r3 = value. r4 = object.
 
   Label done;
   // If the object is a smi, return the value.
   __ JumpIfSmi(r4, &done);
 
   // If the object is not a value type, return the value.
   __ CompareObjectType(r4, r5, r5, JS_VALUE_TYPE);
   __ bne(&done);
 
   // Store the value.
   __ StoreP(r3, FieldMemOperand(r4, JSValue::kValueOffset), r0);
   // Update the write barrier.  Save the value as it will be
   // overwritten by the write barrier code and is needed afterward.
   __ mr(r5, r3);
   __ RecordWriteField(r4, JSValue::kValueOffset, r5, r6, kLRHasBeenSaved,
                       kDontSaveFPRegs);
 
   __ bind(&done);
   context()->Plug(r3);
 }
 
+
+void FullCodeGenerator::EmitNumberToString(CallRuntime* expr) {
+  ZoneList<Expression*>* args = expr->arguments();
+  DCHECK_EQ(args->length(), 1);
+  // Load the argument into r3 and call the stub.
+  VisitForAccumulatorValue(args->at(0));
+
+  NumberToStringStub stub(isolate());
+  __ CallStub(&stub);
+  context()->Plug(r3);
+}
+
 
 void FullCodeGenerator::EmitStringCharFromCode(CallRuntime* expr) {
   ZoneList<Expression*>* args = expr->arguments();
   DCHECK(args->length() == 1);
   VisitForAccumulatorValue(args->at(0));
 
   Label done;
   StringCharFromCodeGenerator generator(r3, r4);
   generator.GenerateFast(masm_);
   __ b(&done);
@@ skipping 93 matching lines @@
   ZoneList<Expression*>* args = expr->arguments();
   DCHECK_EQ(2, args->length());
   VisitForStackValue(args->at(0));
   VisitForAccumulatorValue(args->at(1));
 
   __ pop(r4);
   StringAddStub stub(isolate(), STRING_ADD_CHECK_BOTH, NOT_TENURED);
   __ CallStub(&stub);
   context()->Plug(r3);
 }
+
+
+void FullCodeGenerator::EmitStringCompare(CallRuntime* expr) {
+  ZoneList<Expression*>* args = expr->arguments();
+  DCHECK_EQ(2, args->length());
+  VisitForStackValue(args->at(0));
+  VisitForStackValue(args->at(1));
+
+  StringCompareStub stub(isolate());
+  __ CallStub(&stub);
+  context()->Plug(r3);
+}
 
 
 void FullCodeGenerator::EmitCallFunction(CallRuntime* expr) {
   ZoneList<Expression*>* args = expr->arguments();
   DCHECK(args->length() >= 2);
 
   int arg_count = args->length() - 2;  // 2 ~ receiver and function.
   for (int i = 0; i < arg_count + 1; i++) {
     VisitForStackValue(args->at(i));
   }
@@ skipping 1251 matching lines @@
     return ON_STACK_REPLACEMENT;
   }
 
   DCHECK(interrupt_address ==
          isolate->builtins()->OsrAfterStackCheck()->entry());
   return OSR_AFTER_STACK_CHECK;
 }
 }  // namespace internal
 }  // namespace v8
 #endif  // V8_TARGET_ARCH_PPC