Version 3.20.11.1

src/ia32/lithium-codegen-ia32.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 667 matching lines @@
 }
 
 
 double LCodeGen::ToDouble(LConstantOperand* op) const {
   HConstant* constant = chunk_->LookupConstant(op);
   ASSERT(constant->HasDoubleValue());
   return constant->DoubleValue();
 }
 
 
-ExternalReference LCodeGen::ToExternalReference(LConstantOperand* op) const {
-  HConstant* constant = chunk_->LookupConstant(op);
-  ASSERT(constant->HasExternalReferenceValue());
-  return constant->ExternalReferenceValue();
-}
-
-
 bool LCodeGen::IsInteger32(LConstantOperand* op) const {
   return chunk_->LookupLiteralRepresentation(op).IsSmiOrInteger32();
 }
 
 
 bool LCodeGen::IsSmi(LConstantOperand* op) const {
   return chunk_->LookupLiteralRepresentation(op).IsSmi();
 }
 
 
@@ skipping 1057 matching lines @@
       case Token::SHR:
         if (shift_count == 0 && instr->can_deopt()) {
           __ test(ToRegister(left), Immediate(0x80000000));
           DeoptimizeIf(not_zero, instr->environment());
         } else {
           __ shr(ToRegister(left), shift_count);
         }
         break;
       case Token::SHL:
         if (shift_count != 0) {
-          if (instr->hydrogen_value()->representation().IsSmi() &&
-              instr->can_deopt()) {
-            __ shl(ToRegister(left), shift_count - 1);
-            __ SmiTag(ToRegister(left));
-            DeoptimizeIf(overflow, instr->environment());
-          } else {
-            __ shl(ToRegister(left), shift_count);
-          }
+          __ shl(ToRegister(left), shift_count);
         }
         break;
       default:
         UNREACHABLE();
         break;
     }
   }
 }
 
 
@@ skipping 63 matching lines @@
           __ Set(temp, Immediate(lower));
           __ movd(xmm0, Operand(temp));
           __ por(res, xmm0);
         }
       }
     }
   }
 }
 
 
-void LCodeGen::DoConstantE(LConstantE* instr) {
-  __ lea(ToRegister(instr->result()), Operand::StaticVariable(instr->value()));
-}
-
-
 void LCodeGen::DoConstantT(LConstantT* instr) {
   Register reg = ToRegister(instr->result());
   Handle<Object> handle = instr->value();
   AllowDeferredHandleDereference smi_check;
   __ LoadObject(reg, handle);
 }
 
 
 void LCodeGen::DoMapEnumLength(LMapEnumLength* instr) {
   Register result = ToRegister(instr->result());
@@ skipping 1176 matching lines @@
                               check_needed);
   }
 
   __ bind(&skip_assignment);
 }
 
 
 void LCodeGen::DoLoadNamedField(LLoadNamedField* instr) {
   HObjectAccess access = instr->hydrogen()->access();
   int offset = access.offset();
-
-  if (access.IsExternalMemory()) {
-    Register result = ToRegister(instr->result());
-    if (instr->object()->IsConstantOperand()) {
-      ExternalReference external_reference = ToExternalReference(
-          LConstantOperand::cast(instr->object()));
-      __ mov(result, MemOperand::StaticVariable(external_reference));
-    } else {
-      __ mov(result, MemOperand(ToRegister(instr->object()), offset));
-    }
-    return;
-  }
-
   Register object = ToRegister(instr->object());
   if (FLAG_track_double_fields &&
       instr->hydrogen()->representation().IsDouble()) {
     if (CpuFeatures::IsSupported(SSE2)) {
       CpuFeatureScope scope(masm(), SSE2);
       XMMRegister result = ToDoubleRegister(instr->result());
       __ movdbl(result, FieldOperand(object, offset));
     } else {
       X87Mov(ToX87Register(instr->result()), FieldOperand(object, offset));
     }
@@ skipping 1259 matching lines @@
 void LCodeGen::DoInnerAllocatedObject(LInnerAllocatedObject* instr) {
   Register result = ToRegister(instr->result());
   Register base = ToRegister(instr->base_object());
   __ lea(result, Operand(base, instr->offset()));
 }
 
 
 void LCodeGen::DoStoreNamedField(LStoreNamedField* instr) {
   Representation representation = instr->representation();
 
+  Register object = ToRegister(instr->object());
   HObjectAccess access = instr->hydrogen()->access();
   int offset = access.offset();
 
-  if (access.IsExternalMemory()) {
-    MemOperand operand = instr->object()->IsConstantOperand()
-        ? MemOperand::StaticVariable(
-            ToExternalReference(LConstantOperand::cast(instr->object())))
-        : MemOperand(ToRegister(instr->object()), offset);
-    if (instr->value()->IsConstantOperand()) {
-      LConstantOperand* operand_value = LConstantOperand::cast(instr->value());
-      __ mov(operand, Immediate(ToInteger32(operand_value)));
-    } else {
-      Register value = ToRegister(instr->value());
-      __ mov(operand, value);
-    }
-    return;
-  }
-
-  Register object = ToRegister(instr->object());
   Handle<Map> transition = instr->transition();
 
   if (FLAG_track_fields && representation.IsSmi()) {
     if (instr->value()->IsConstantOperand()) {
       LConstantOperand* operand_value = LConstantOperand::cast(instr->value());
       if (!IsSmi(operand_value)) {
         DeoptimizeIf(no_condition, instr->environment());
       }
     }
   } else if (FLAG_track_heap_object_fields && representation.IsHeapObject()) {
@@ skipping 44 matching lines @@
   }
 
   // Do the store.
   SmiCheck check_needed =
       instr->hydrogen()->value()->IsHeapObject()
           ? OMIT_SMI_CHECK : INLINE_SMI_CHECK;
 
   Register write_register = object;
   if (!access.IsInobject()) {
     write_register = ToRegister(instr->temp());
-    __ mov(write_register, FieldOperand(object, JSObject::kPropertiesOffset));
+    __ mov(write_register,
+           FieldOperand(object, JSObject::kPropertiesOffset));
   }
 
   if (instr->value()->IsConstantOperand()) {
     LConstantOperand* operand_value = LConstantOperand::cast(instr->value());
     if (operand_value->IsRegister()) {
       __ mov(FieldOperand(write_register, offset), ToRegister(operand_value));
     } else {
       Handle<Object> handle_value = ToHandle(operand_value);
       ASSERT(!instr->hydrogen()->NeedsWriteBarrier());
       __ mov(FieldOperand(write_register, offset), handle_value);
@@ skipping 297 matching lines @@
   if (is_simple_map_transition) {
     Register new_map_reg = ToRegister(instr->new_map_temp());
     Handle<Map> map = instr->hydrogen()->transitioned_map();
     __ mov(FieldOperand(object_reg, HeapObject::kMapOffset),
            Immediate(map));
     // Write barrier.
     ASSERT_NE(instr->temp(), NULL);
     __ RecordWriteForMap(object_reg, to_map, new_map_reg,
                          ToRegister(instr->temp()),
                          kDontSaveFPRegs);
-  } else {
+  } else if (FLAG_compiled_transitions) {
     PushSafepointRegistersScope scope(this);
     if (!object_reg.is(eax)) {
       __ push(object_reg);
     }
     LoadContextFromDeferred(instr->context());
     if (!object_reg.is(eax)) {
       __ pop(eax);
     }
     __ mov(ebx, to_map);
     TransitionElementsKindStub stub(from_kind, to_kind);
     __ CallStub(&stub);
     RecordSafepointWithRegisters(
         instr->pointer_map(), 0, Safepoint::kNoLazyDeopt);
+  } else if (IsFastSmiElementsKind(from_kind) &&
+             IsFastDoubleElementsKind(to_kind)) {
+    Register new_map_reg = ToRegister(instr->new_map_temp());
+    __ mov(new_map_reg, to_map);
+    Register fixed_object_reg = ToRegister(instr->temp());
+    ASSERT(fixed_object_reg.is(edx));
+    ASSERT(new_map_reg.is(ebx));
+    __ mov(fixed_object_reg, object_reg);
+    CallCode(isolate()->builtins()->TransitionElementsSmiToDouble(),
+             RelocInfo::CODE_TARGET, instr);
+  } else if (IsFastDoubleElementsKind(from_kind) &&
+             IsFastObjectElementsKind(to_kind)) {
+    Register new_map_reg = ToRegister(instr->new_map_temp());
+    __ mov(new_map_reg, to_map);
+    Register fixed_object_reg = ToRegister(instr->temp());
+    ASSERT(fixed_object_reg.is(edx));
+    ASSERT(new_map_reg.is(ebx));
+    __ mov(fixed_object_reg, object_reg);
+    CallCode(isolate()->builtins()->TransitionElementsDoubleToObject(),
+             RelocInfo::CODE_TARGET, instr);
+  } else {
+    UNREACHABLE();
   }
   __ bind(&not_applicable);
 }
 
 
 void LCodeGen::DoStringCharCodeAt(LStringCharCodeAt* instr) {
   class DeferredStringCharCodeAt: public LDeferredCode {
    public:
     DeferredStringCharCodeAt(LCodeGen* codegen, LStringCharCodeAt* instr)
         : LDeferredCode(codegen), instr_(instr) { }
@@ skipping 1742 matching lines @@
                               FixedArray::kHeaderSize - kPointerSize));
   __ bind(&done);
 }
 
 
 #undef __
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_IA32