PowerPC specific sub-directories

src/ic/ppc/handler-compiler-ppc.cc

Index: src/ic/ppc/handler-compiler-ppc.cc
diff --git a/src/ic/arm/handler-compiler-arm.cc b/src/ic/ppc/handler-compiler-ppc.cc
similarity index 70%
copy from src/ic/arm/handler-compiler-arm.cc
copy to src/ic/ppc/handler-compiler-ppc.cc
index 5314d48ff62256d042f1c7293d78fa18f66e6f06..2f29c83412c55a63e50391eca7e44b58218b7c2a 100644
--- a/src/ic/arm/handler-compiler-arm.cc
+++ b/src/ic/ppc/handler-compiler-ppc.cc
@@ -4,7 +4,7 @@
 
 #include "src/v8.h"
 
-#if V8_TARGET_ARCH_ARM
+#if V8_TARGET_ARCH_PPC
 
 #include "src/ic/call-optimization.h"
 #include "src/ic/handler-compiler.h"
@@ -20,8 +20,8 @@ void NamedLoadHandlerCompiler::GenerateLoadViaGetter(
     MacroAssembler* masm, Handle<HeapType> type, Register receiver,
     Handle<JSFunction> getter) {
   // ----------- S t a t e -------------
-  //  -- r0    : receiver
-  //  -- r2    : name
+  //  -- r3    : receiver
+  //  -- r5    : name
   //  -- lr    : return address
   // -----------------------------------
   {
@@ -31,8 +31,8 @@ void NamedLoadHandlerCompiler::GenerateLoadViaGetter(
       // Call the JavaScript getter with the receiver on the stack.
       if (IC::TypeToMap(*type, masm->isolate())->IsJSGlobalObjectMap()) {
         // Swap in the global receiver.
-        __ ldr(receiver,
-               FieldMemOperand(receiver, JSGlobalObject::kGlobalProxyOffset));
+        __ LoadP(receiver,
+                 FieldMemOperand(receiver, JSGlobalObject::kGlobalProxyOffset));
       }
       __ push(receiver);
       ParameterCount actual(0);
@@ -46,7 +46,7 @@ void NamedLoadHandlerCompiler::GenerateLoadViaGetter(
     }
 
     // Restore context register.
-    __ ldr(cp, MemOperand(fp, StandardFrameConstants::kContextOffset));
+    __ LoadP(cp, MemOperand(fp, StandardFrameConstants::kContextOffset));
   }
   __ Ret();
 }
@@ -68,8 +68,8 @@ void NamedStoreHandlerCompiler::GenerateStoreViaSetter(
       // Call the JavaScript setter with receiver and value on the stack.
       if (IC::TypeToMap(*type, masm->isolate())->IsJSGlobalObjectMap()) {
         // Swap in the global receiver.
-        __ ldr(receiver,
-               FieldMemOperand(receiver, JSGlobalObject::kGlobalProxyOffset));
+        __ LoadP(receiver,
+                 FieldMemOperand(receiver, JSGlobalObject::kGlobalProxyOffset));
       }
       __ Push(receiver, value());
       ParameterCount actual(1);
@@ -83,10 +83,10 @@ void NamedStoreHandlerCompiler::GenerateStoreViaSetter(
     }
 
     // We have to return the passed value, not the return value of the setter.
-    __ pop(r0);
+    __ pop(r3);
 
     // Restore context register.
-    __ ldr(cp, MemOperand(fp, StandardFrameConstants::kContextOffset));
+    __ LoadP(cp, MemOperand(fp, StandardFrameConstants::kContextOffset));
   }
   __ Ret();
 }
@@ -108,28 +108,28 @@ void PropertyHandlerCompiler::GenerateDictionaryNegativeLookup(
 
   // Bail out if the receiver has a named interceptor or requires access checks.
   Register map = scratch1;
-  __ ldr(map, FieldMemOperand(receiver, HeapObject::kMapOffset));
-  __ ldrb(scratch0, FieldMemOperand(map, Map::kBitFieldOffset));
-  __ tst(scratch0, Operand(kInterceptorOrAccessCheckNeededMask));
-  __ b(ne, miss_label);
+  __ LoadP(map, FieldMemOperand(receiver, HeapObject::kMapOffset));
+  __ lbz(scratch0, FieldMemOperand(map, Map::kBitFieldOffset));
+  __ andi(r0, scratch0, Operand(kInterceptorOrAccessCheckNeededMask));
+  __ bne(miss_label, cr0);
 
   // Check that receiver is a JSObject.
-  __ ldrb(scratch0, FieldMemOperand(map, Map::kInstanceTypeOffset));
-  __ cmp(scratch0, Operand(FIRST_SPEC_OBJECT_TYPE));
-  __ b(lt, miss_label);
+  __ lbz(scratch0, FieldMemOperand(map, Map::kInstanceTypeOffset));
+  __ cmpi(scratch0, Operand(FIRST_SPEC_OBJECT_TYPE));
+  __ blt(miss_label);
 
   // Load properties array.
   Register properties = scratch0;
-  __ ldr(properties, FieldMemOperand(receiver, JSObject::kPropertiesOffset));
+  __ LoadP(properties, FieldMemOperand(receiver, JSObject::kPropertiesOffset));
   // Check that the properties array is a dictionary.
-  __ ldr(map, FieldMemOperand(properties, HeapObject::kMapOffset));
+  __ LoadP(map, FieldMemOperand(properties, HeapObject::kMapOffset));
   Register tmp = properties;
   __ LoadRoot(tmp, Heap::kHashTableMapRootIndex);
   __ cmp(map, tmp);
-  __ b(ne, miss_label);
+  __ bne(miss_label);
 
   // Restore the temporarily used register.
-  __ ldr(properties, FieldMemOperand(receiver, JSObject::kPropertiesOffset));
+  __ LoadP(properties, FieldMemOperand(receiver, JSObject::kPropertiesOffset));
 
 
   NameDictionaryLookupStub::GenerateNegativeLookup(
@@ -149,17 +149,18 @@ void NamedLoadHandlerCompiler::GenerateDirectLoadGlobalFunctionPrototype(
   // Check we're still in the same context.
   Register scratch = prototype;
   const int offset = Context::SlotOffset(Context::GLOBAL_OBJECT_INDEX);
-  __ ldr(scratch, MemOperand(cp, offset));
-  __ ldr(scratch, FieldMemOperand(scratch, GlobalObject::kNativeContextOffset));
-  __ ldr(scratch, MemOperand(scratch, Context::SlotOffset(index)));
+  __ LoadP(scratch, MemOperand(cp, offset));
+  __ LoadP(scratch,
+           FieldMemOperand(scratch, GlobalObject::kNativeContextOffset));
+  __ LoadP(scratch, MemOperand(scratch, Context::SlotOffset(index)));
   __ Move(ip, function);
   __ cmp(ip, scratch);
-  __ b(ne, miss);
+  __ bne(miss);
 
   // Load its initial map. The global functions all have initial maps.
   __ Move(prototype, Handle<Map>(function->initial_map()));
   // Load the prototype from the initial map.
-  __ ldr(prototype, FieldMemOperand(prototype, Map::kPrototypeOffset));
+  __ LoadP(prototype, FieldMemOperand(prototype, Map::kPrototypeOffset));
 }
 
 
@@ -167,7 +168,7 @@ void NamedLoadHandlerCompiler::GenerateLoadFunctionPrototype(
     MacroAssembler* masm, Register receiver, Register scratch1,
     Register scratch2, Label* miss_label) {
   __ TryGetFunctionPrototype(receiver, scratch1, scratch2, miss_label);
-  __ mov(r0, scratch1);
+  __ mr(r3, scratch1);
   __ Ret();
 }
 
@@ -181,10 +182,10 @@ void PropertyHandlerCompiler::GenerateCheckPropertyCell(
   Handle<Cell> cell = JSGlobalObject::EnsurePropertyCell(global, name);
   DCHECK(cell->value()->IsTheHole());
   __ mov(scratch, Operand(cell));
-  __ ldr(scratch, FieldMemOperand(scratch, Cell::kValueOffset));
+  __ LoadP(scratch, FieldMemOperand(scratch, Cell::kValueOffset));
   __ LoadRoot(ip, Heap::kTheHoleValueRootIndex);
   __ cmp(scratch, ip);
-  __ b(ne, miss);
+  __ bne(miss);
 }
 
 
@@ -233,10 +234,10 @@ void PropertyHandlerCompiler::GenerateFastApiCall(
   DCHECK(optimization.is_simple_api_call());
 
   // Abi for CallApiFunctionStub.
-  Register callee = r0;
-  Register call_data = r4;
-  Register holder = r2;
-  Register api_function_address = r1;
+  Register callee = r3;
+  Register call_data = r7;
+  Register holder = r5;
+  Register api_function_address = r4;
 
   // Put holder in place.
   CallOptimization::HolderLookup holder_lookup;
@@ -266,7 +267,8 @@ void PropertyHandlerCompiler::GenerateFastApiCall(
   // Put call_data in place.
   if (isolate->heap()->InNewSpace(*call_data_obj)) {
     __ Move(call_data, api_call_info);
-    __ ldr(call_data, FieldMemOperand(call_data, CallHandlerInfo::kDataOffset));
+    __ LoadP(call_data,
+             FieldMemOperand(call_data, CallHandlerInfo::kDataOffset));
   } else if (call_data_obj->IsUndefined()) {
     call_data_undefined = true;
     __ LoadRoot(call_data, Heap::kUndefinedValueRootIndex);
@@ -326,183 +328,41 @@ void NamedStoreHandlerCompiler::GenerateRestoreName(Label* label,
 }
 
 
-// Generate StoreTransition code, value is passed in r0 register.
-// When leaving generated code after success, the receiver_reg and name_reg
-// may be clobbered.  Upon branch to miss_label, the receiver and name
-// registers have their original values.
-void NamedStoreHandlerCompiler::GenerateStoreTransition(
-    Handle<Map> transition, Handle<Name> name, Register receiver_reg,
-    Register storage_reg, Register value_reg, Register scratch1,
-    Register scratch2, Register scratch3, Label* miss_label, Label* slow) {
-  // r0 : value
-  Label exit;
-
-  int descriptor = transition->LastAdded();
-  DescriptorArray* descriptors = transition->instance_descriptors();
-  PropertyDetails details = descriptors->GetDetails(descriptor);
-  Representation representation = details.representation();
-  DCHECK(!representation.IsNone());
-
-  if (details.type() == CONSTANT) {
-    Handle<Object> constant(descriptors->GetValue(descriptor), isolate());
-    __ Move(scratch1, constant);
-    __ cmp(value_reg, scratch1);
-    __ b(ne, miss_label);
-  } else if (representation.IsSmi()) {
-    __ JumpIfNotSmi(value_reg, miss_label);
-  } else if (representation.IsHeapObject()) {
-    __ JumpIfSmi(value_reg, miss_label);
-    HeapType* field_type = descriptors->GetFieldType(descriptor);
-    HeapType::Iterator<Map> it = field_type->Classes();
-    if (!it.Done()) {
-      __ ldr(scratch1, FieldMemOperand(value_reg, HeapObject::kMapOffset));
-      Label do_store;
-      while (true) {
-        __ CompareMap(scratch1, it.Current(), &do_store);
-        it.Advance();
-        if (it.Done()) {
-          __ b(ne, miss_label);
-          break;
-        }
-        __ b(eq, &do_store);
-      }
-      __ bind(&do_store);
-    }
-  } else if (representation.IsDouble()) {
-    Label do_store, heap_number;
-    __ LoadRoot(scratch3, Heap::kMutableHeapNumberMapRootIndex);
-    __ AllocateHeapNumber(storage_reg, scratch1, scratch2, scratch3, slow,
-                          TAG_RESULT, MUTABLE);
-
-    __ JumpIfNotSmi(value_reg, &heap_number);
-    __ SmiUntag(scratch1, value_reg);
-    __ vmov(s0, scratch1);
-    __ vcvt_f64_s32(d0, s0);
-    __ jmp(&do_store);
-
-    __ bind(&heap_number);
-    __ CheckMap(value_reg, scratch1, Heap::kHeapNumberMapRootIndex, miss_label,
-                DONT_DO_SMI_CHECK);
-    __ vldr(d0, FieldMemOperand(value_reg, HeapNumber::kValueOffset));
-
-    __ bind(&do_store);
-    __ vstr(d0, FieldMemOperand(storage_reg, HeapNumber::kValueOffset));
-  }
-
-  // Stub never generated for objects that require access checks.
-  DCHECK(!transition->is_access_check_needed());
-
-  // Perform map transition for the receiver if necessary.
-  if (details.type() == FIELD &&
-      Map::cast(transition->GetBackPointer())->unused_property_fields() == 0) {
-    // The properties must be extended before we can store the value.
-    // We jump to a runtime call that extends the properties array.
-    __ push(receiver_reg);
-    __ mov(r2, Operand(transition));
-    __ Push(r2, r0);
-    __ TailCallExternalReference(
-        ExternalReference(IC_Utility(IC::kSharedStoreIC_ExtendStorage),
-                          isolate()),
-        3, 1);
-    return;
-  }
-
-  // Update the map of the object.
-  __ mov(scratch1, Operand(transition));
-  __ str(scratch1, FieldMemOperand(receiver_reg, HeapObject::kMapOffset));
-
-  // Update the write barrier for the map field.
-  __ RecordWriteField(receiver_reg, HeapObject::kMapOffset, scratch1, scratch2,
-                      kLRHasNotBeenSaved, kDontSaveFPRegs, OMIT_REMEMBERED_SET,
-                      OMIT_SMI_CHECK);
-
-  if (details.type() == CONSTANT) {
-    DCHECK(value_reg.is(r0));
-    __ Ret();
-    return;
-  }
-
-  int index = transition->instance_descriptors()->GetFieldIndex(
-      transition->LastAdded());
-
-  // Adjust for the number of properties stored in the object. Even in the
-  // face of a transition we can use the old map here because the size of the
-  // object and the number of in-object properties is not going to change.
-  index -= transition->inobject_properties();
-
-  // TODO(verwaest): Share this code as a code stub.
-  SmiCheck smi_check =
-      representation.IsTagged() ? INLINE_SMI_CHECK : OMIT_SMI_CHECK;
-  if (index < 0) {
-    // Set the property straight into the object.
-    int offset = transition->instance_size() + (index * kPointerSize);
-    if (representation.IsDouble()) {
-      __ str(storage_reg, FieldMemOperand(receiver_reg, offset));
-    } else {
-      __ str(value_reg, FieldMemOperand(receiver_reg, offset));
-    }
+void NamedStoreHandlerCompiler::GenerateRestoreNameAndMap(
+    Handle<Name> name, Handle<Map> transition) {
+  __ mov(this->name(), Operand(name));
+  __ mov(StoreTransitionDescriptor::MapRegister(), Operand(transition));
+}
 
-    if (!representation.IsSmi()) {
-      // Update the write barrier for the array address.
-      if (!representation.IsDouble()) {
-        __ mov(storage_reg, value_reg);
-      }
-      __ RecordWriteField(receiver_reg, offset, storage_reg, scratch1,
-                          kLRHasNotBeenSaved, kDontSaveFPRegs,
-                          EMIT_REMEMBERED_SET, smi_check);
-    }
-  } else {
-    // Write to the properties array.
-    int offset = index * kPointerSize + FixedArray::kHeaderSize;
-    // Get the properties array
-    __ ldr(scratch1,
-           FieldMemOperand(receiver_reg, JSObject::kPropertiesOffset));
-    if (representation.IsDouble()) {
-      __ str(storage_reg, FieldMemOperand(scratch1, offset));
-    } else {
-      __ str(value_reg, FieldMemOperand(scratch1, offset));
-    }
 
-    if (!representation.IsSmi()) {
-      // Update the write barrier for the array address.
-      if (!representation.IsDouble()) {
-        __ mov(storage_reg, value_reg);
-      }
-      __ RecordWriteField(scratch1, offset, storage_reg, receiver_reg,
-                          kLRHasNotBeenSaved, kDontSaveFPRegs,
-                          EMIT_REMEMBERED_SET, smi_check);
-    }
-  }
-
-  // Return the value (register r0).
-  DCHECK(value_reg.is(r0));
-  __ bind(&exit);
-  __ Ret();
+void NamedStoreHandlerCompiler::GenerateConstantCheck(Object* constant,
+                                                      Register value_reg,
+                                                      Label* miss_label) {
+  __ Move(scratch1(), handle(constant, isolate()));
+  __ cmp(value_reg, scratch1());
+  __ bne(miss_label);
 }
 
 
-void NamedStoreHandlerCompiler::GenerateStoreField(LookupIterator* lookup,
-                                                   Register value_reg,
-                                                   Label* miss_label) {
-  DCHECK(lookup->representation().IsHeapObject());
+void NamedStoreHandlerCompiler::GenerateFieldTypeChecks(HeapType* field_type,
+                                                        Register value_reg,
+                                                        Label* miss_label) {
   __ JumpIfSmi(value_reg, miss_label);
-  HeapType::Iterator<Map> it = lookup->GetFieldType()->Classes();
-  __ ldr(scratch1(), FieldMemOperand(value_reg, HeapObject::kMapOffset));
-  Label do_store;
-  while (true) {
-    __ CompareMap(scratch1(), it.Current(), &do_store);
-    it.Advance();
-    if (it.Done()) {
-      __ b(ne, miss_label);
-      break;
+  HeapType::Iterator<Map> it = field_type->Classes();
+  if (!it.Done()) {
+    __ LoadP(scratch1(), FieldMemOperand(value_reg, HeapObject::kMapOffset));
+    Label do_store;
+    while (true) {
+      __ CompareMap(scratch1(), it.Current(), &do_store);
+      it.Advance();
+      if (it.Done()) {
+        __ bne(miss_label);
+        break;
+      }
+      __ beq(&do_store);
     }
-    __ b(eq, &do_store);
+    __ bind(&do_store);
   }
-  __ bind(&do_store);
-
-  StoreFieldStub stub(isolate(), lookup->GetFieldIndex(),
-                      lookup->representation());
-  GenerateTailCall(masm(), stub.GetCode());
 }
 
 
@@ -553,16 +413,16 @@ Register PropertyHandlerCompiler::CheckPrototypes(
       GenerateDictionaryNegativeLookup(masm(), miss, reg, name, scratch1,
                                        scratch2);
 
-      __ ldr(scratch1, FieldMemOperand(reg, HeapObject::kMapOffset));
+      __ LoadP(scratch1, FieldMemOperand(reg, HeapObject::kMapOffset));
       reg = holder_reg;  // From now on the object will be in holder_reg.
-      __ ldr(reg, FieldMemOperand(scratch1, Map::kPrototypeOffset));
+      __ LoadP(reg, FieldMemOperand(scratch1, Map::kPrototypeOffset));
     } else {
       Register map_reg = scratch1;
       if (depth != 1 || check == CHECK_ALL_MAPS) {
         // CheckMap implicitly loads the map of |reg| into |map_reg|.
         __ CheckMap(reg, map_reg, current_map, miss, DONT_DO_SMI_CHECK);
       } else {
-        __ ldr(map_reg, FieldMemOperand(reg, HeapObject::kMapOffset));
+        __ LoadP(map_reg, FieldMemOperand(reg, HeapObject::kMapOffset));
       }
 
       // Check access rights to the global object.  This has to happen after
@@ -587,7 +447,7 @@ Register PropertyHandlerCompiler::CheckPrototypes(
       bool load_prototype_from_map =
           heap()->InNewSpace(*prototype) || depth == 1;
       if (load_prototype_from_map) {
-        __ ldr(reg, FieldMemOperand(map_reg, Map::kPrototypeOffset));
+        __ LoadP(reg, FieldMemOperand(map_reg, Map::kPrototypeOffset));
       } else {
         __ mov(reg, Operand(prototype));
       }
@@ -642,7 +502,7 @@ void NamedStoreHandlerCompiler::FrontendFooter(Handle<Name> name, Label* miss) {
 
 void NamedLoadHandlerCompiler::GenerateLoadConstant(Handle<Object> value) {
   // Return the constant value.
-  __ Move(r0, value);
+  __ Move(r3, value);
   __ Ret();
 }
 
@@ -664,18 +524,17 @@ void NamedLoadHandlerCompiler::GenerateLoadCallback(
   __ push(receiver());
   if (heap()->InNewSpace(callback->data())) {
     __ Move(scratch3(), callback);
-    __ ldr(scratch3(),
-           FieldMemOperand(scratch3(), ExecutableAccessorInfo::kDataOffset));
+    __ LoadP(scratch3(),
+             FieldMemOperand(scratch3(), ExecutableAccessorInfo::kDataOffset));
   } else {
     __ Move(scratch3(), Handle<Object>(callback->data(), isolate()));
   }
   __ push(scratch3());
   __ LoadRoot(scratch3(), Heap::kUndefinedValueRootIndex);
-  __ mov(scratch4(), scratch3());
+  __ mr(scratch4(), scratch3());
   __ Push(scratch3(), scratch4());
   __ mov(scratch4(), Operand(ExternalReference::isolate_address(isolate())));
   __ Push(scratch4(), reg);
-  __ mov(scratch2(), sp);  // scratch2 = PropertyAccessorInfo::args_
   __ push(name());
 
   // Abi for CallApiGetter
@@ -732,8 +591,8 @@ void NamedLoadHandlerCompiler::GenerateLoadInterceptorWithFollowup(
     // the case, return immediately.
     Label interceptor_failed;
     __ LoadRoot(scratch1(), Heap::kNoInterceptorResultSentinelRootIndex);
-    __ cmp(r0, scratch1());
-    __ b(eq, &interceptor_failed);
+    __ cmp(r3, scratch1());
+    __ beq(&interceptor_failed);
     frame_scope.GenerateLeaveFrame();
     __ Ret();
 
@@ -769,9 +628,8 @@ Handle<Code> NamedStoreHandlerCompiler::CompileStoreCallback(
     Handle<ExecutableAccessorInfo> callback) {
   Register holder_reg = Frontend(receiver(), name);
 
-  __ push(receiver());  // receiver
-  __ push(holder_reg);
-  __ mov(ip, Operand(callback));  // callback info
+  __ Push(receiver(), holder_reg);  // receiver
+  __ mov(ip, Operand(callback));    // callback info
   __ push(ip);
   __ mov(ip, Operand(name));
   __ Push(ip, value());
@@ -813,17 +671,17 @@ Handle<Code> NamedLoadHandlerCompiler::CompileLoadGlobal(
   // Get the value from the cell.
   Register result = StoreDescriptor::ValueRegister();
   __ mov(result, Operand(cell));
-  __ ldr(result, FieldMemOperand(result, Cell::kValueOffset));
+  __ LoadP(result, FieldMemOperand(result, Cell::kValueOffset));
 
   // Check for deleted property if property can actually be deleted.
   if (is_configurable) {
     __ LoadRoot(ip, Heap::kTheHoleValueRootIndex);
     __ cmp(result, ip);
-    __ b(eq, &miss);
+    __ beq(&miss);
   }
 
   Counters* counters = isolate()->counters();
-  __ IncrementCounter(counters->named_load_global_stub(), 1, r1, r3);
+  __ IncrementCounter(counters->named_load_global_stub(), 1, r4, r6);
   __ Ret();
 
   FrontendFooter(name, &miss);