MIPS: Handle constants in new space by making macro-assembler smarter.

src/mips/lithium-codegen-mips.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 348 matching lines @@
     if (r.IsInteger32()) {
       ASSERT(literal->IsNumber());
       __ li(scratch, Operand(static_cast<int32_t>(literal->Number())));
     } else if (r.IsSmi()) {
       ASSERT(constant->HasSmiValue());
       __ li(scratch, Operand(Smi::FromInt(constant->Integer32Value())));
     } else if (r.IsDouble()) {
       Abort(kEmitLoadRegisterUnsupportedDoubleImmediate);
     } else {
       ASSERT(r.IsSmiOrTagged());
-      __ LoadObject(scratch, literal);
+      __ li(scratch, literal);
     }
     return scratch;
   } else if (op->IsStackSlot() || op->IsArgument()) {
     __ lw(scratch, ToMemOperand(op));
     return scratch;
   }
   UNREACHABLE();
   return scratch;
 }
 
@@ skipping 281 matching lines @@
 
 
 void LCodeGen::LoadContextFromDeferred(LOperand* context) {
   if (context->IsRegister()) {
     __ Move(cp, ToRegister(context));
   } else if (context->IsStackSlot()) {
     __ lw(cp, ToMemOperand(context));
   } else if (context->IsConstantOperand()) {
     HConstant* constant =
         chunk_->LookupConstant(LConstantOperand::cast(context));
-    __ LoadObject(cp, Handle<Object>::cast(constant->handle(isolate())));
+    __ li(cp, Handle<Object>::cast(constant->handle(isolate())));
   } else {
     UNREACHABLE();
   }
 }
 
 
 void LCodeGen::CallRuntimeFromDeferred(Runtime::FunctionId id,
                                        int argc,
                                        LInstruction* instr,
                                        LOperand* context) {
@@ skipping 958 matching lines @@
 
 
 void LCodeGen::DoConstantE(LConstantE* instr) {
   __ li(ToRegister(instr->result()), Operand(instr->value()));
 }
 
 
 void LCodeGen::DoConstantT(LConstantT* instr) {
   Handle<Object> value = instr->value(isolate());
   AllowDeferredHandleDereference smi_check;
-  __ LoadObject(ToRegister(instr->result()), value);
+  __ li(ToRegister(instr->result()), value);
 }
 
 
 void LCodeGen::DoMapEnumLength(LMapEnumLength* instr) {
   Register result = ToRegister(instr->result());
   Register map = ToRegister(instr->value());
   __ EnumLength(result, map);
 }
 
 
@@ skipping 983 matching lines @@
   InstanceofStub stub(flags);
 
   PushSafepointRegistersScope scope(this, Safepoint::kWithRegisters);
   LoadContextFromDeferred(instr->context());
 
   // Get the temp register reserved by the instruction. This needs to be t0 as
   // its slot of the pushing of safepoint registers is used to communicate the
   // offset to the location of the map check.
   Register temp = ToRegister(instr->temp());
   ASSERT(temp.is(t0));
-  __ LoadHeapObject(InstanceofStub::right(), instr->function());
+  __ li(InstanceofStub::right(), instr->function());
   static const int kAdditionalDelta = 7;
   int delta = masm_->InstructionsGeneratedSince(map_check) + kAdditionalDelta;
   Label before_push_delta;
   __ bind(&before_push_delta);
   {
     Assembler::BlockTrampolinePoolScope block_trampoline_pool(masm_);
     __ li(temp, Operand(delta * kPointerSize), CONSTANT_SIZE);
     __ StoreToSafepointRegisterSlot(temp, temp);
   }
   CallCodeGeneric(stub.GetCode(isolate()),
@@ skipping 731 matching lines @@
 void LCodeGen::DoOuterContext(LOuterContext* instr) {
   Register context = ToRegister(instr->context());
   Register result = ToRegister(instr->result());
   __ lw(result,
         MemOperand(context, Context::SlotOffset(Context::PREVIOUS_INDEX)));
 }
 
 
 void LCodeGen::DoDeclareGlobals(LDeclareGlobals* instr) {
   ASSERT(ToRegister(instr->context()).is(cp));
-  __ LoadHeapObject(scratch0(), instr->hydrogen()->pairs());
+  __ li(scratch0(), instr->hydrogen()->pairs());
   __ li(scratch1(), Operand(Smi::FromInt(instr->hydrogen()->flags())));
   // The context is the first argument.
   __ Push(cp, scratch0(), scratch1());
   CallRuntime(Runtime::kDeclareGlobals, 3, instr);
 }
 
 
 void LCodeGen::DoGlobalObject(LGlobalObject* instr) {
   Register context = ToRegister(instr->context());
   Register result = ToRegister(instr->result());
@@ skipping 16 matching lines @@
                                  A1State a1_state) {
   bool dont_adapt_arguments =
       formal_parameter_count == SharedFunctionInfo::kDontAdaptArgumentsSentinel;
   bool can_invoke_directly =
       dont_adapt_arguments || formal_parameter_count == arity;
 
   LPointerMap* pointers = instr->pointer_map();
 
   if (can_invoke_directly) {
     if (a1_state == A1_UNINITIALIZED) {
-      __ LoadHeapObject(a1, function);
+      __ li(a1, function);
     }
 
     // Change context.
     __ lw(cp, FieldMemOperand(a1, JSFunction::kContextOffset));
 
     // Set r0 to arguments count if adaption is not needed. Assumes that r0
     // is available to write to at this point.
     if (dont_adapt_arguments) {
       __ li(a0, Operand(arity));
     }
@@ skipping 1913 matching lines @@
 void LCodeGen::DoRegExpLiteral(LRegExpLiteral* instr) {
   ASSERT(ToRegister(instr->context()).is(cp));
   Label materialized;
   // Registers will be used as follows:
   // t3 = literals array.
   // a1 = regexp literal.
   // a0 = regexp literal clone.
   // a2 and t0-t2 are used as temporaries.
   int literal_offset =
       FixedArray::OffsetOfElementAt(instr->hydrogen()->literal_index());
-  __ LoadHeapObject(t3, instr->hydrogen()->literals());
+  __ li(t3, instr->hydrogen()->literals());
   __ lw(a1, FieldMemOperand(t3, literal_offset));
   __ LoadRoot(at, Heap::kUndefinedValueRootIndex);
   __ Branch(&materialized, ne, a1, Operand(at));
 
   // Create regexp literal using runtime function
   // Result will be in v0.
   __ li(t2, Operand(Smi::FromInt(instr->hydrogen()->literal_index())));
   __ li(t1, Operand(instr->hydrogen()->pattern()));
   __ li(t0, Operand(instr->hydrogen()->flags()));
   __ Push(t3, t2, t1, t0);
@@ skipping 425 matching lines @@
   __ Subu(scratch, result, scratch);
   __ lw(result, FieldMemOperand(scratch,
                                 FixedArray::kHeaderSize - kPointerSize));
   __ bind(&done);
 }
 
 
 #undef __
 
 } }  // namespace v8::internal