PowerPC specific sub-directories

src/ic/ppc/handler-compiler-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_ARM
+#if V8_TARGET_ARCH_PPC
 
 #include "src/ic/call-optimization.h"
 #include "src/ic/handler-compiler.h"
 #include "src/ic/ic.h"
 
 namespace v8 {
 namespace internal {
 
 #define __ ACCESS_MASM(masm)
 
 
 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
   // -----------------------------------
   {
     FrameAndConstantPoolScope scope(masm, StackFrame::INTERNAL);
 
     if (!getter.is_null()) {
       // 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);
       ParameterCount expected(getter);
       __ InvokeFunction(getter, expected, actual, CALL_FUNCTION,
                         NullCallWrapper());
     } else {
       // If we generate a global code snippet for deoptimization only, remember
       // the place to continue after deoptimization.
       masm->isolate()->heap()->SetGetterStubDeoptPCOffset(masm->pc_offset());
     }
 
     // Restore context register.
-    __ ldr(cp, MemOperand(fp, StandardFrameConstants::kContextOffset));
+    __ LoadP(cp, MemOperand(fp, StandardFrameConstants::kContextOffset));
   }
   __ Ret();
 }
 
 
 void NamedStoreHandlerCompiler::GenerateStoreViaSetter(
     MacroAssembler* masm, Handle<HeapType> type, Register receiver,
     Handle<JSFunction> setter) {
   // ----------- S t a t e -------------
   //  -- lr    : return address
   // -----------------------------------
   {
     FrameAndConstantPoolScope scope(masm, StackFrame::INTERNAL);
 
     // Save value register, so we can restore it later.
     __ push(value());
 
     if (!setter.is_null()) {
       // 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);
       ParameterCount expected(setter);
       __ InvokeFunction(setter, expected, actual, CALL_FUNCTION,
                         NullCallWrapper());
     } else {
       // If we generate a global code snippet for deoptimization only, remember
       // the place to continue after deoptimization.
       masm->isolate()->heap()->SetSetterStubDeoptPCOffset(masm->pc_offset());
     }
 
     // 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();
 }
 
 
 void PropertyHandlerCompiler::GenerateDictionaryNegativeLookup(
     MacroAssembler* masm, Label* miss_label, Register receiver,
     Handle<Name> name, Register scratch0, Register scratch1) {
   DCHECK(name->IsUniqueName());
   DCHECK(!receiver.is(scratch0));
   Counters* counters = masm->isolate()->counters();
   __ IncrementCounter(counters->negative_lookups(), 1, scratch0, scratch1);
   __ IncrementCounter(counters->negative_lookups_miss(), 1, scratch0, scratch1);
 
   Label done;
 
   const int kInterceptorOrAccessCheckNeededMask =
       (1 << Map::kHasNamedInterceptor) | (1 << Map::kIsAccessCheckNeeded);
 
   // 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(
       masm, miss_label, &done, receiver, properties, name, scratch1);
   __ bind(&done);
   __ DecrementCounter(counters->negative_lookups_miss(), 1, scratch0, scratch1);
 }
 
 
 void NamedLoadHandlerCompiler::GenerateDirectLoadGlobalFunctionPrototype(
     MacroAssembler* masm, int index, Register prototype, Label* miss) {
   Isolate* isolate = masm->isolate();
   // Get the global function with the given index.
   Handle<JSFunction> function(
       JSFunction::cast(isolate->native_context()->get(index)));
 
   // 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));
 }
 
 
 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();
 }
 
 
 // Generate code to check that a global property cell is empty. Create
 // the property cell at compilation time if no cell exists for the
 // property.
 void PropertyHandlerCompiler::GenerateCheckPropertyCell(
     MacroAssembler* masm, Handle<JSGlobalObject> global, Handle<Name> name,
     Register scratch, Label* miss) {
   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);
 }
 
 
 static void PushInterceptorArguments(MacroAssembler* masm, Register receiver,
                                      Register holder, Register name,
                                      Handle<JSObject> holder_obj) {
   STATIC_ASSERT(NamedLoadHandlerCompiler::kInterceptorArgsNameIndex == 0);
   STATIC_ASSERT(NamedLoadHandlerCompiler::kInterceptorArgsInfoIndex == 1);
   STATIC_ASSERT(NamedLoadHandlerCompiler::kInterceptorArgsThisIndex == 2);
   STATIC_ASSERT(NamedLoadHandlerCompiler::kInterceptorArgsHolderIndex == 3);
@@ skipping 28 matching lines @@
   // Write the arguments to stack frame.
   for (int i = 0; i < argc; i++) {
     Register arg = values[argc - 1 - i];
     DCHECK(!receiver.is(arg));
     DCHECK(!scratch_in.is(arg));
     __ push(arg);
   }
   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;
   Handle<JSObject> api_holder =
       optimization.LookupHolderOfExpectedType(receiver_map, &holder_lookup);
   switch (holder_lookup) {
     case CallOptimization::kHolderIsReceiver:
       __ Move(holder, receiver);
       break;
     case CallOptimization::kHolderFound:
       __ Move(holder, api_holder);
       break;
     case CallOptimization::kHolderNotFound:
       UNREACHABLE();
       break;
   }
 
   Isolate* isolate = masm->isolate();
   Handle<JSFunction> function = optimization.constant_function();
   Handle<CallHandlerInfo> api_call_info = optimization.api_call_info();
   Handle<Object> call_data_obj(api_call_info->data(), isolate);
 
   // Put callee in place.
   __ Move(callee, function);
 
   bool call_data_undefined = false;
   // 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);
   } else {
     __ Move(call_data, call_data_obj);
   }
 
   // Put api_function_address in place.
   Address function_address = v8::ToCData<Address>(api_call_info->callback());
   ApiFunction fun(function_address);
@@ skipping 51 matching lines @@
   __ mov(this->name(), Operand(name));
   __ mov(StoreTransitionDescriptor::MapRegister(), Operand(transition));
 }
 
 
 void NamedStoreHandlerCompiler::GenerateConstantCheck(Object* constant,
                                                       Register value_reg,
                                                       Label* miss_label) {
   __ Move(scratch1(), handle(constant, isolate()));
   __ cmp(value_reg, scratch1());
-  __ b(ne, miss_label);
+  __ bne(miss_label);
 }
 
 
 void NamedStoreHandlerCompiler::GenerateFieldTypeChecks(HeapType* field_type,
                                                         Register value_reg,
                                                         Label* miss_label) {
   __ JumpIfSmi(value_reg, miss_label);
   HeapType::Iterator<Map> it = field_type->Classes();
   if (!it.Done()) {
-    __ ldr(scratch1(), FieldMemOperand(value_reg, HeapObject::kMapOffset));
+    __ LoadP(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);
+        __ bne(miss_label);
         break;
       }
-      __ b(eq, &do_store);
+      __ beq(&do_store);
     }
     __ bind(&do_store);
   }
 }
 
 
 Register PropertyHandlerCompiler::CheckPrototypes(
     Register object_reg, Register holder_reg, Register scratch1,
     Register scratch2, Handle<Name> name, Label* miss,
     PrototypeCheckType check) {
@@ skipping 33 matching lines @@
         DCHECK(name->IsString());
         name = factory()->InternalizeString(Handle<String>::cast(name));
       }
       DCHECK(current.is_null() ||
              current->property_dictionary()->FindEntry(name) ==
                  NameDictionary::kNotFound);
 
       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
       // the map check so that we know that the object is actually a global
       // object.
       // This allows us to install generated handlers for accesses to the
       // global proxy (as opposed to using slow ICs). See corresponding code
       // in LookupForRead().
       if (current_map->IsJSGlobalProxyMap()) {
         __ CheckAccessGlobalProxy(reg, scratch2, miss);
       } else if (current_map->IsJSGlobalObjectMap()) {
         GenerateCheckPropertyCell(masm(), Handle<JSGlobalObject>::cast(current),
                                   name, scratch2, miss);
       }
 
       reg = holder_reg;  // From now on the object will be in holder_reg.
 
       // Two possible reasons for loading the prototype from the map:
       // (1) Can't store references to new space in code.
       // (2) Handler is shared for all receivers with the same prototype
       //     map (but not necessarily the same prototype instance).
       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));
       }
     }
 
     // Go to the next object in the prototype chain.
     current = prototype;
     current_map = handle(current->map());
   }
 
@@ skipping 34 matching lines @@
     __ b(&success);
     GenerateRestoreName(miss, name);
     TailCallBuiltin(masm(), MissBuiltin(kind()));
     __ bind(&success);
   }
 }
 
 
 void NamedLoadHandlerCompiler::GenerateLoadConstant(Handle<Object> value) {
   // Return the constant value.
-  __ Move(r0, value);
+  __ Move(r3, value);
   __ Ret();
 }
 
 
 void NamedLoadHandlerCompiler::GenerateLoadCallback(
     Register reg, Handle<ExecutableAccessorInfo> callback) {
   // Build AccessorInfo::args_ list on the stack and push property name below
   // the exit frame to make GC aware of them and store pointers to them.
   STATIC_ASSERT(PropertyCallbackArguments::kHolderIndex == 0);
   STATIC_ASSERT(PropertyCallbackArguments::kIsolateIndex == 1);
   STATIC_ASSERT(PropertyCallbackArguments::kReturnValueDefaultValueIndex == 2);
   STATIC_ASSERT(PropertyCallbackArguments::kReturnValueOffset == 3);
   STATIC_ASSERT(PropertyCallbackArguments::kDataIndex == 4);
   STATIC_ASSERT(PropertyCallbackArguments::kThisIndex == 5);
   STATIC_ASSERT(PropertyCallbackArguments::kArgsLength == 6);
   DCHECK(!scratch2().is(reg));
   DCHECK(!scratch3().is(reg));
   DCHECK(!scratch4().is(reg));
   __ 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
   Register getter_address_reg = ApiGetterDescriptor::function_address();
 
   Address getter_address = v8::ToCData<Address>(callback->getter());
   ApiFunction fun(getter_address);
   ExternalReference::Type type = ExternalReference::DIRECT_GETTER_CALL;
   ExternalReference ref = ExternalReference(&fun, type, isolate());
   __ mov(getter_address_reg, Operand(ref));
@@ skipping 36 matching lines @@
     // interceptor's holder has been compiled before (see a caller
     // of this method.)
     CompileCallLoadPropertyWithInterceptor(
         masm(), receiver(), holder_reg, this->name(), holder(),
         IC::kLoadPropertyWithInterceptorOnly);
 
     // Check if interceptor provided a value for property.  If it's
     // 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();
 
     __ bind(&interceptor_failed);
     __ pop(this->name());
     __ pop(holder_reg);
     if (must_preserve_receiver_reg) {
       __ pop(receiver());
     }
     // Leave the internal frame.
@@ skipping 15 matching lines @@
   __ TailCallExternalReference(
       ref, NamedLoadHandlerCompiler::kInterceptorArgsLength, 1);
 }
 
 
 Handle<Code> NamedStoreHandlerCompiler::CompileStoreCallback(
     Handle<JSObject> object, Handle<Name> name,
     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());
 
   // Do tail-call to the runtime system.
   ExternalReference store_callback_property =
       ExternalReference(IC_Utility(IC::kStoreCallbackProperty), isolate());
   __ TailCallExternalReference(store_callback_property, 5, 1);
 
   // Return the generated code.
@@ skipping 21 matching lines @@
 
 
 Handle<Code> NamedLoadHandlerCompiler::CompileLoadGlobal(
     Handle<PropertyCell> cell, Handle<Name> name, bool is_configurable) {
   Label miss;
   FrontendHeader(receiver(), name, &miss);
 
   // 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);
 
   // Return the generated code.
   return GetCode(kind(), Code::NORMAL, name);
 }
 
 
 #undef __
 }
 }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_ARM