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Unified Diff: src/arm/stub-cache-arm.cc

Issue 92068: Move backend specific files to separate directories. (Closed)
Patch Set: Added CPPPATH flag and made all includes use same base path. Created 11 years, 8 months ago
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Index: src/arm/stub-cache-arm.cc
diff --git a/src/arm/stub-cache-arm.cc b/src/arm/stub-cache-arm.cc
new file mode 100644
index 0000000000000000000000000000000000000000..56afa0288484d59fd6bf030704f007dfc1a91913
--- /dev/null
+++ b/src/arm/stub-cache-arm.cc
@@ -0,0 +1,1124 @@
+// Copyright 2006-2008 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
+// with the distribution.
+// * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived
+// from this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#include "v8.h"
+
+#include "ic-inl.h"
+#include "codegen-inl.h"
+#include "stub-cache.h"
+
+namespace v8 { namespace internal {
+
+#define __ ACCESS_MASM(masm)
+
+
+static void ProbeTable(MacroAssembler* masm,
+ Code::Flags flags,
+ StubCache::Table table,
+ Register name,
+ Register offset) {
+ ExternalReference key_offset(SCTableReference::keyReference(table));
+ ExternalReference value_offset(SCTableReference::valueReference(table));
+
+ Label miss;
+
+ // Save the offset on the stack.
+ __ push(offset);
+
+ // Check that the key in the entry matches the name.
+ __ mov(ip, Operand(key_offset));
+ __ ldr(ip, MemOperand(ip, offset, LSL, 1));
+ __ cmp(name, Operand(ip));
+ __ b(ne, &miss);
+
+ // Get the code entry from the cache.
+ __ mov(ip, Operand(value_offset));
+ __ ldr(offset, MemOperand(ip, offset, LSL, 1));
+
+ // Check that the flags match what we're looking for.
+ __ ldr(offset, FieldMemOperand(offset, Code::kFlagsOffset));
+ __ and_(offset, offset, Operand(~Code::kFlagsTypeMask));
+ __ cmp(offset, Operand(flags));
+ __ b(ne, &miss);
+
+ // Restore offset and re-load code entry from cache.
+ __ pop(offset);
+ __ mov(ip, Operand(value_offset));
+ __ ldr(offset, MemOperand(ip, offset, LSL, 1));
+
+ // Jump to the first instruction in the code stub.
+ __ add(offset, offset, Operand(Code::kHeaderSize - kHeapObjectTag));
+ __ Jump(offset);
+
+ // Miss: Restore offset and fall through.
+ __ bind(&miss);
+ __ pop(offset);
+}
+
+
+void StubCache::GenerateProbe(MacroAssembler* masm,
+ Code::Flags flags,
+ Register receiver,
+ Register name,
+ Register scratch) {
+ Label miss;
+
+ // Make sure that code is valid. The shifting code relies on the
+ // entry size being 8.
+ ASSERT(sizeof(Entry) == 8);
+
+ // Make sure the flags does not name a specific type.
+ ASSERT(Code::ExtractTypeFromFlags(flags) == 0);
+
+ // Make sure that there are no register conflicts.
+ ASSERT(!scratch.is(receiver));
+ ASSERT(!scratch.is(name));
+
+ // Check that the receiver isn't a smi.
+ __ tst(receiver, Operand(kSmiTagMask));
+ __ b(eq, &miss);
+
+ // Get the map of the receiver and compute the hash.
+ __ ldr(scratch, FieldMemOperand(name, String::kLengthOffset));
+ __ ldr(ip, FieldMemOperand(receiver, HeapObject::kMapOffset));
+ __ add(scratch, scratch, Operand(ip));
+ __ eor(scratch, scratch, Operand(flags));
+ __ and_(scratch,
+ scratch,
+ Operand((kPrimaryTableSize - 1) << kHeapObjectTagSize));
+
+ // Probe the primary table.
+ ProbeTable(masm, flags, kPrimary, name, scratch);
+
+ // Primary miss: Compute hash for secondary probe.
+ __ sub(scratch, scratch, Operand(name));
+ __ add(scratch, scratch, Operand(flags));
+ __ and_(scratch,
+ scratch,
+ Operand((kSecondaryTableSize - 1) << kHeapObjectTagSize));
+
+ // Probe the secondary table.
+ ProbeTable(masm, flags, kSecondary, name, scratch);
+
+ // Cache miss: Fall-through and let caller handle the miss by
+ // entering the runtime system.
+ __ bind(&miss);
+}
+
+
+void StubCompiler::GenerateLoadGlobalFunctionPrototype(MacroAssembler* masm,
+ int index,
+ Register prototype) {
+ // Load the global or builtins object from the current context.
+ __ ldr(prototype, MemOperand(cp, Context::SlotOffset(Context::GLOBAL_INDEX)));
+ // Load the global context from the global or builtins object.
+ __ ldr(prototype,
+ FieldMemOperand(prototype, GlobalObject::kGlobalContextOffset));
+ // Load the function from the global context.
+ __ ldr(prototype, MemOperand(prototype, Context::SlotOffset(index)));
+ // Load the initial map. The global functions all have initial maps.
+ __ ldr(prototype,
+ FieldMemOperand(prototype, JSFunction::kPrototypeOrInitialMapOffset));
+ // Load the prototype from the initial map.
+ __ ldr(prototype, FieldMemOperand(prototype, Map::kPrototypeOffset));
+}
+
+
+// Load a fast property out of a holder object (src). In-object properties
+// are loaded directly otherwise the property is loaded from the properties
+// fixed array.
+void StubCompiler::GenerateFastPropertyLoad(MacroAssembler* masm,
+ Register dst, Register src,
+ JSObject* holder, int index) {
+ // Adjust for the number of properties stored in the holder.
+ index -= holder->map()->inobject_properties();
+ if (index < 0) {
+ // Get the property straight out of the holder.
+ int offset = holder->map()->instance_size() + (index * kPointerSize);
+ __ ldr(dst, FieldMemOperand(src, offset));
+ } else {
+ // Calculate the offset into the properties array.
+ int offset = index * kPointerSize + Array::kHeaderSize;
+ __ ldr(dst, FieldMemOperand(src, JSObject::kPropertiesOffset));
+ __ ldr(dst, FieldMemOperand(dst, offset));
+ }
+}
+
+
+void StubCompiler::GenerateLoadField(MacroAssembler* masm,
+ JSObject* object,
+ JSObject* holder,
+ Register receiver,
+ Register scratch1,
+ Register scratch2,
+ int index,
+ Label* miss_label) {
+ // Check that the receiver isn't a smi.
+ __ tst(receiver, Operand(kSmiTagMask));
+ __ b(eq, miss_label);
+
+ // Check that the maps haven't changed.
+ Register reg =
+ masm->CheckMaps(object, receiver, holder, scratch1, scratch2, miss_label);
+ GenerateFastPropertyLoad(masm, r0, reg, holder, index);
+ __ Ret();
+}
+
+
+void StubCompiler::GenerateLoadConstant(MacroAssembler* masm,
+ JSObject* object,
+ JSObject* holder,
+ Register receiver,
+ Register scratch1,
+ Register scratch2,
+ Object* value,
+ Label* miss_label) {
+ // Check that the receiver isn't a smi.
+ __ tst(receiver, Operand(kSmiTagMask));
+ __ b(eq, miss_label);
+
+ // Check that the maps haven't changed.
+ Register reg =
+ masm->CheckMaps(object, receiver, holder, scratch1, scratch2, miss_label);
+
+ // Return the constant value.
+ __ mov(r0, Operand(Handle<Object>(value)));
+ __ Ret();
+}
+
+
+void StubCompiler::GenerateLoadCallback(MacroAssembler* masm,
+ JSObject* object,
+ JSObject* holder,
+ Register receiver,
+ Register name,
+ Register scratch1,
+ Register scratch2,
+ AccessorInfo* callback,
+ Label* miss_label) {
+ // Check that the receiver isn't a smi.
+ __ tst(receiver, Operand(kSmiTagMask));
+ __ b(eq, miss_label);
+
+ // Check that the maps haven't changed.
+ Register reg =
+ masm->CheckMaps(object, receiver, holder, scratch1, scratch2, miss_label);
+
+ // Push the arguments on the JS stack of the caller.
+ __ push(receiver); // receiver
+ __ mov(ip, Operand(Handle<AccessorInfo>(callback))); // callback data
+ __ push(ip);
+ __ push(name); // name
+ __ push(reg); // holder
+
+ // Do tail-call to the runtime system.
+ ExternalReference load_callback_property =
+ ExternalReference(IC_Utility(IC::kLoadCallbackProperty));
+ __ TailCallRuntime(load_callback_property, 4);
+}
+
+
+void StubCompiler::GenerateLoadInterceptor(MacroAssembler* masm,
+ JSObject* object,
+ JSObject* holder,
+ Register receiver,
+ Register name,
+ Register scratch1,
+ Register scratch2,
+ Label* miss_label) {
+ // Check that the receiver isn't a smi.
+ __ tst(receiver, Operand(kSmiTagMask));
+ __ b(eq, miss_label);
+
+ // Check that the maps haven't changed.
+ Register reg =
+ masm->CheckMaps(object, receiver, holder, scratch1, scratch2, miss_label);
+
+ // Push the arguments on the JS stack of the caller.
+ __ push(receiver); // receiver
+ __ push(reg); // holder
+ __ push(name); // name
+
+ // Do tail-call to the runtime system.
+ ExternalReference load_ic_property =
+ ExternalReference(IC_Utility(IC::kLoadInterceptorProperty));
+ __ TailCallRuntime(load_ic_property, 3);
+}
+
+
+void StubCompiler::GenerateLoadArrayLength(MacroAssembler* masm,
+ Register receiver,
+ Register scratch,
+ Label* miss_label) {
+ // Check that the receiver isn't a smi.
+ __ tst(receiver, Operand(kSmiTagMask));
+ __ b(eq, miss_label);
+
+ // Check that the object is a JS array.
+ __ ldr(scratch, FieldMemOperand(receiver, HeapObject::kMapOffset));
+ __ ldrb(scratch, FieldMemOperand(scratch, Map::kInstanceTypeOffset));
+ __ cmp(scratch, Operand(JS_ARRAY_TYPE));
+ __ b(ne, miss_label);
+
+ // Load length directly from the JS array.
+ __ ldr(r0, FieldMemOperand(receiver, JSArray::kLengthOffset));
+ __ Ret();
+}
+
+
+// Generate code to check if an object is a string. If the object is
+// a string, the map's instance type is left in the scratch1 register.
+static void GenerateStringCheck(MacroAssembler* masm,
+ Register receiver,
+ Register scratch1,
+ Register scratch2,
+ Label* smi,
+ Label* non_string_object) {
+ // Check that the receiver isn't a smi.
+ __ tst(receiver, Operand(kSmiTagMask));
+ __ b(eq, smi);
+
+ // Check that the object is a string.
+ __ ldr(scratch1, FieldMemOperand(receiver, HeapObject::kMapOffset));
+ __ ldrb(scratch1, FieldMemOperand(scratch1, Map::kInstanceTypeOffset));
+ __ and_(scratch2, scratch1, Operand(kIsNotStringMask));
+ // The cast is to resolve the overload for the argument of 0x0.
+ __ cmp(scratch2, Operand(static_cast<int32_t>(kStringTag)));
+ __ b(ne, non_string_object);
+}
+
+
+// Generate code to load the length from a string object and return the length.
+// If the receiver object is not a string or a wrapped string object the
+// execution continues at the miss label. The register containing the
+// receiver is potentially clobbered.
+void StubCompiler::GenerateLoadStringLength2(MacroAssembler* masm,
+ Register receiver,
+ Register scratch1,
+ Register scratch2,
+ Label* miss) {
+ Label check_string, check_wrapper;
+
+ __ bind(&check_string);
+ // Check if the object is a string leaving the instance type in the
+ // scratch1 register.
+ GenerateStringCheck(masm, receiver, scratch1, scratch2,
+ miss, &check_wrapper);
+
+ // Load length directly from the string.
+ __ and_(scratch1, scratch1, Operand(kStringSizeMask));
+ __ add(scratch1, scratch1, Operand(String::kHashShift));
+ __ ldr(r0, FieldMemOperand(receiver, String::kLengthOffset));
+ __ mov(r0, Operand(r0, LSR, scratch1));
+ __ mov(r0, Operand(r0, LSL, kSmiTagSize));
+ __ Ret();
+
+ // Check if the object is a JSValue wrapper.
+ __ bind(&check_wrapper);
+ __ cmp(scratch1, Operand(JS_VALUE_TYPE));
+ __ b(ne, miss);
+
+ // Unwrap the value in place and check if the wrapped value is a string.
+ __ ldr(receiver, FieldMemOperand(receiver, JSValue::kValueOffset));
+ __ b(&check_string);
+}
+
+
+// Generate StoreField code, value is passed in r0 register.
+// After executing generated code, the receiver_reg and name_reg
+// may be clobbered.
+void StubCompiler::GenerateStoreField(MacroAssembler* masm,
+ Builtins::Name storage_extend,
+ JSObject* object,
+ int index,
+ Map* transition,
+ Register receiver_reg,
+ Register name_reg,
+ Register scratch,
+ Label* miss_label) {
+ // r0 : value
+ Label exit;
+
+ // Check that the receiver isn't a smi.
+ __ tst(receiver_reg, Operand(kSmiTagMask));
+ __ b(eq, miss_label);
+
+ // Check that the map of the receiver hasn't changed.
+ __ ldr(scratch, FieldMemOperand(receiver_reg, HeapObject::kMapOffset));
+ __ cmp(scratch, Operand(Handle<Map>(object->map())));
+ __ b(ne, miss_label);
+
+ // Perform global security token check if needed.
+ if (object->IsJSGlobalProxy()) {
+ __ CheckAccessGlobalProxy(receiver_reg, scratch, miss_label);
+ }
+
+ // Stub never generated for non-global objects that require access
+ // checks.
+ ASSERT(object->IsJSGlobalProxy() || !object->IsAccessCheckNeeded());
+
+ // Perform map transition for the receiver if necessary.
+ if ((transition != NULL) && (object->map()->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.
+ __ mov(r2, Operand(Handle<Map>(transition)));
+ // Please note, if we implement keyed store for arm we need
+ // to call the Builtins::KeyedStoreIC_ExtendStorage.
+ Handle<Code> ic(Builtins::builtin(Builtins::StoreIC_ExtendStorage));
+ __ Jump(ic, RelocInfo::CODE_TARGET);
+ return;
+ }
+
+ if (transition != NULL) {
+ // Update the map of the object; no write barrier updating is
+ // needed because the map is never in new space.
+ __ mov(ip, Operand(Handle<Map>(transition)));
+ __ str(ip, FieldMemOperand(receiver_reg, HeapObject::kMapOffset));
+ }
+
+ // 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 -= object->map()->inobject_properties();
+
+ if (index < 0) {
+ // Set the property straight into the object.
+ int offset = object->map()->instance_size() + (index * kPointerSize);
+ __ str(r0, FieldMemOperand(receiver_reg, offset));
+
+ // Skip updating write barrier if storing a smi.
+ __ tst(r0, Operand(kSmiTagMask));
+ __ b(eq, &exit);
+
+ // Update the write barrier for the array address.
+ // Pass the value being stored in the now unused name_reg.
+ __ mov(name_reg, Operand(offset));
+ __ RecordWrite(receiver_reg, name_reg, scratch);
+ } else {
+ // Write to the properties array.
+ int offset = index * kPointerSize + Array::kHeaderSize;
+ // Get the properties array
+ __ ldr(scratch, FieldMemOperand(receiver_reg, JSObject::kPropertiesOffset));
+ __ str(r0, FieldMemOperand(scratch, offset));
+
+ // Skip updating write barrier if storing a smi.
+ __ tst(r0, Operand(kSmiTagMask));
+ __ b(eq, &exit);
+
+ // Update the write barrier for the array address.
+ // Ok to clobber receiver_reg and name_reg, since we return.
+ __ mov(name_reg, Operand(offset));
+ __ RecordWrite(scratch, name_reg, receiver_reg);
+ }
+
+ // Return the value (register r0).
+ __ bind(&exit);
+ __ Ret();
+}
+
+
+void StubCompiler::GenerateLoadMiss(MacroAssembler* masm, Code::Kind kind) {
+ ASSERT(kind == Code::LOAD_IC || kind == Code::KEYED_LOAD_IC);
+ Code* code = NULL;
+ if (kind == Code::LOAD_IC) {
+ code = Builtins::builtin(Builtins::LoadIC_Miss);
+ } else {
+ code = Builtins::builtin(Builtins::KeyedLoadIC_Miss);
+ }
+
+ Handle<Code> ic(code);
+ __ Jump(ic, RelocInfo::CODE_TARGET);
+}
+
+
+#undef __
+#define __ ACCESS_MASM(masm())
+
+
+Object* StubCompiler::CompileLazyCompile(Code::Flags flags) {
+ // ----------- S t a t e -------------
+ // -- r1: function
+ // -- lr: return address
+ // -----------------------------------
+
+ // Enter an internal frame.
+ __ EnterInternalFrame();
+
+ // Preserve the function.
+ __ push(r1);
+
+ // Push the function on the stack as the argument to the runtime function.
+ __ push(r1);
+ __ CallRuntime(Runtime::kLazyCompile, 1);
+
+ // Calculate the entry point.
+ __ add(r2, r0, Operand(Code::kHeaderSize - kHeapObjectTag));
+
+ // Restore saved function.
+ __ pop(r1);
+
+ // Tear down temporary frame.
+ __ LeaveInternalFrame();
+
+ // Do a tail-call of the compiled function.
+ __ Jump(r2);
+
+ return GetCodeWithFlags(flags, "LazyCompileStub");
+}
+
+
+Object* CallStubCompiler::CompileCallField(Object* object,
+ JSObject* holder,
+ int index,
+ String* name) {
+ // ----------- S t a t e -------------
+ // -- lr: return address
+ // -----------------------------------
+ Label miss;
+
+ const int argc = arguments().immediate();
+
+ // Get the receiver of the function from the stack into r0.
+ __ ldr(r0, MemOperand(sp, argc * kPointerSize));
+ // Check that the receiver isn't a smi.
+ __ tst(r0, Operand(kSmiTagMask));
+ __ b(eq, &miss);
+
+ // Do the right check and compute the holder register.
+ Register reg =
+ masm()->CheckMaps(JSObject::cast(object), r0, holder, r3, r2, &miss);
+ GenerateFastPropertyLoad(masm(), r1, reg, holder, index);
+
+ // Check that the function really is a function.
+ __ tst(r1, Operand(kSmiTagMask));
+ __ b(eq, &miss);
+ // Get the map.
+ __ ldr(r2, FieldMemOperand(r1, HeapObject::kMapOffset));
+ __ ldrb(r2, FieldMemOperand(r2, Map::kInstanceTypeOffset));
+ __ cmp(r2, Operand(JS_FUNCTION_TYPE));
+ __ b(ne, &miss);
+
+ // Patch the receiver on the stack with the global proxy if
+ // necessary.
+ if (object->IsGlobalObject()) {
+ __ ldr(r3, FieldMemOperand(r0, GlobalObject::kGlobalReceiverOffset));
+ __ str(r3, MemOperand(sp, argc * kPointerSize));
+ }
+
+ // Invoke the function.
+ __ InvokeFunction(r1, arguments(), JUMP_FUNCTION);
+
+ // Handle call cache miss.
+ __ bind(&miss);
+ Handle<Code> ic = ComputeCallMiss(arguments().immediate());
+ __ Jump(ic, RelocInfo::CODE_TARGET);
+
+ // Return the generated code.
+ return GetCode(FIELD, name);
+}
+
+
+Object* CallStubCompiler::CompileCallConstant(Object* object,
+ JSObject* holder,
+ JSFunction* function,
+ CheckType check) {
+ // ----------- S t a t e -------------
+ // -- lr: return address
+ // -----------------------------------
+ Label miss;
+
+ // Get the receiver from the stack
+ const int argc = arguments().immediate();
+ __ ldr(r1, MemOperand(sp, argc * kPointerSize));
+
+ // Check that the receiver isn't a smi.
+ if (check != NUMBER_CHECK) {
+ __ tst(r1, Operand(kSmiTagMask));
+ __ b(eq, &miss);
+ }
+
+ // Make sure that it's okay not to patch the on stack receiver
+ // unless we're doing a receiver map check.
+ ASSERT(!object->IsGlobalObject() || check == RECEIVER_MAP_CHECK);
+
+ switch (check) {
+ case RECEIVER_MAP_CHECK:
+ // Check that the maps haven't changed.
+ __ CheckMaps(JSObject::cast(object), r1, holder, r3, r2, &miss);
+
+ // Patch the receiver on the stack with the global proxy if
+ // necessary.
+ if (object->IsGlobalObject()) {
+ __ ldr(r3, FieldMemOperand(r1, GlobalObject::kGlobalReceiverOffset));
+ __ str(r3, MemOperand(sp, argc * kPointerSize));
+ }
+ break;
+
+ case STRING_CHECK:
+ // Check that the object is a two-byte string or a symbol.
+ __ ldr(r2, FieldMemOperand(r1, HeapObject::kMapOffset));
+ __ ldrb(r2, FieldMemOperand(r2, Map::kInstanceTypeOffset));
+ __ cmp(r2, Operand(FIRST_NONSTRING_TYPE));
+ __ b(hs, &miss);
+ // Check that the maps starting from the prototype haven't changed.
+ GenerateLoadGlobalFunctionPrototype(masm(),
+ Context::STRING_FUNCTION_INDEX,
+ r2);
+ __ CheckMaps(JSObject::cast(object->GetPrototype()),
+ r2, holder, r3, r1, &miss);
+ break;
+
+ case NUMBER_CHECK: {
+ Label fast;
+ // Check that the object is a smi or a heap number.
+ __ tst(r1, Operand(kSmiTagMask));
+ __ b(eq, &fast);
+ __ ldr(r2, FieldMemOperand(r1, HeapObject::kMapOffset));
+ __ ldrb(r2, FieldMemOperand(r2, Map::kInstanceTypeOffset));
+ __ cmp(r2, Operand(HEAP_NUMBER_TYPE));
+ __ b(ne, &miss);
+ __ bind(&fast);
+ // Check that the maps starting from the prototype haven't changed.
+ GenerateLoadGlobalFunctionPrototype(masm(),
+ Context::NUMBER_FUNCTION_INDEX,
+ r2);
+ __ CheckMaps(JSObject::cast(object->GetPrototype()),
+ r2, holder, r3, r1, &miss);
+ break;
+ }
+
+ case BOOLEAN_CHECK: {
+ Label fast;
+ // Check that the object is a boolean.
+ __ cmp(r1, Operand(Factory::true_value()));
+ __ b(eq, &fast);
+ __ cmp(r1, Operand(Factory::false_value()));
+ __ b(ne, &miss);
+ __ bind(&fast);
+ // Check that the maps starting from the prototype haven't changed.
+ GenerateLoadGlobalFunctionPrototype(masm(),
+ Context::BOOLEAN_FUNCTION_INDEX,
+ r2);
+ __ CheckMaps(JSObject::cast(object->GetPrototype()),
+ r2, holder, r3, r1, &miss);
+ break;
+ }
+
+ case JSARRAY_HAS_FAST_ELEMENTS_CHECK:
+ __ CheckMaps(JSObject::cast(object), r1, holder, r3, r2, &miss);
+ // Make sure object->elements()->map() != Heap::hash_table_map()
+ // Get the elements array of the object.
+ __ ldr(r3, FieldMemOperand(r1, JSObject::kElementsOffset));
+ // Check that the object is in fast mode (not dictionary).
+ __ ldr(r2, FieldMemOperand(r3, HeapObject::kMapOffset));
+ __ cmp(r2, Operand(Factory::hash_table_map()));
+ __ b(eq, &miss);
+ break;
+
+ default:
+ UNREACHABLE();
+ }
+
+ // Get the function and setup the context.
+ __ mov(r1, Operand(Handle<JSFunction>(function)));
+ __ ldr(cp, FieldMemOperand(r1, JSFunction::kContextOffset));
+
+ // Jump to the cached code (tail call).
+ Handle<Code> code(function->code());
+ ParameterCount expected(function->shared()->formal_parameter_count());
+ __ InvokeCode(code, expected, arguments(),
+ RelocInfo::CODE_TARGET, JUMP_FUNCTION);
+
+ // Handle call cache miss.
+ __ bind(&miss);
+ Handle<Code> ic = ComputeCallMiss(arguments().immediate());
+ __ Jump(ic, RelocInfo::CODE_TARGET);
+
+ // Return the generated code.
+ String* function_name = NULL;
+ if (function->shared()->name()->IsString()) {
+ function_name = String::cast(function->shared()->name());
+ }
+ return GetCode(CONSTANT_FUNCTION, function_name);
+}
+
+
+Object* CallStubCompiler::CompileCallInterceptor(Object* object,
+ JSObject* holder,
+ String* name) {
+ // ----------- S t a t e -------------
+ // -- lr: return address
+ // -----------------------------------
+ Label miss;
+
+ // TODO(1224669): Implement.
+
+ // Handle call cache miss.
+ __ bind(&miss);
+ Handle<Code> ic = ComputeCallMiss(arguments().immediate());
+ __ Jump(ic, RelocInfo::CODE_TARGET);
+
+ // Return the generated code.
+ return GetCode(INTERCEPTOR, name);
+}
+
+
+Object* StoreStubCompiler::CompileStoreField(JSObject* object,
+ int index,
+ Map* transition,
+ String* name) {
+ // ----------- S t a t e -------------
+ // -- r0 : value
+ // -- r2 : name
+ // -- lr : return address
+ // -- [sp] : receiver
+ // -----------------------------------
+ Label miss;
+
+ // Get the receiver from the stack.
+ __ ldr(r3, MemOperand(sp, 0 * kPointerSize));
+
+ // name register might be clobbered.
+ GenerateStoreField(masm(),
+ Builtins::StoreIC_ExtendStorage,
+ object,
+ index,
+ transition,
+ r3, r2, r1,
+ &miss);
+ __ bind(&miss);
+ __ mov(r2, Operand(Handle<String>(name))); // restore name
+ Handle<Code> ic(Builtins::builtin(Builtins::StoreIC_Miss));
+ __ Jump(ic, RelocInfo::CODE_TARGET);
+
+ // Return the generated code.
+ return GetCode(transition == NULL ? FIELD : MAP_TRANSITION, name);
+}
+
+
+Object* StoreStubCompiler::CompileStoreCallback(JSObject* object,
+ AccessorInfo* callback,
+ String* name) {
+ // ----------- S t a t e -------------
+ // -- r0 : value
+ // -- r2 : name
+ // -- lr : return address
+ // -- [sp] : receiver
+ // -----------------------------------
+ Label miss;
+
+ // Get the object from the stack.
+ __ ldr(r3, MemOperand(sp, 0 * kPointerSize));
+
+ // Check that the object isn't a smi.
+ __ tst(r3, Operand(kSmiTagMask));
+ __ b(eq, &miss);
+
+ // Check that the map of the object hasn't changed.
+ __ ldr(r1, FieldMemOperand(r3, HeapObject::kMapOffset));
+ __ cmp(r1, Operand(Handle<Map>(object->map())));
+ __ b(ne, &miss);
+
+ // Perform global security token check if needed.
+ if (object->IsJSGlobalProxy()) {
+ __ CheckAccessGlobalProxy(r3, r1, &miss);
+ }
+
+ // Stub never generated for non-global objects that require access
+ // checks.
+ ASSERT(object->IsJSGlobalProxy() || !object->IsAccessCheckNeeded());
+
+ __ ldr(ip, MemOperand(sp)); // receiver
+ __ push(ip);
+ __ mov(ip, Operand(Handle<AccessorInfo>(callback))); // callback info
+ __ push(ip);
+ __ push(r2); // name
+ __ push(r0); // value
+
+ // Do tail-call to the runtime system.
+ ExternalReference store_callback_property =
+ ExternalReference(IC_Utility(IC::kStoreCallbackProperty));
+ __ TailCallRuntime(store_callback_property, 4);
+
+ // Handle store cache miss.
+ __ bind(&miss);
+ __ mov(r2, Operand(Handle<String>(name))); // restore name
+ Handle<Code> ic(Builtins::builtin(Builtins::StoreIC_Miss));
+ __ Jump(ic, RelocInfo::CODE_TARGET);
+
+ // Return the generated code.
+ return GetCode(CALLBACKS, name);
+}
+
+
+Object* StoreStubCompiler::CompileStoreInterceptor(JSObject* receiver,
+ String* name) {
+ // ----------- S t a t e -------------
+ // -- r0 : value
+ // -- r2 : name
+ // -- lr : return address
+ // -- [sp] : receiver
+ // -----------------------------------
+ Label miss;
+
+ // Get the object from the stack.
+ __ ldr(r3, MemOperand(sp, 0 * kPointerSize));
+
+ // Check that the object isn't a smi.
+ __ tst(r3, Operand(kSmiTagMask));
+ __ b(eq, &miss);
+
+ // Check that the map of the object hasn't changed.
+ __ ldr(r1, FieldMemOperand(r3, HeapObject::kMapOffset));
+ __ cmp(r1, Operand(Handle<Map>(receiver->map())));
+ __ b(ne, &miss);
+
+ // Perform global security token check if needed.
+ if (receiver->IsJSGlobalProxy()) {
+ __ CheckAccessGlobalProxy(r3, r1, &miss);
+ }
+
+ // Stub never generated for non-global objects that require access
+ // checks.
+ ASSERT(receiver->IsJSGlobalProxy() || !receiver->IsAccessCheckNeeded());
+
+ __ ldr(ip, MemOperand(sp)); // receiver
+ __ push(ip);
+ __ push(r2); // name
+ __ push(r0); // value
+
+ // Do tail-call to the runtime system.
+ ExternalReference store_ic_property =
+ ExternalReference(IC_Utility(IC::kStoreInterceptorProperty));
+ __ TailCallRuntime(store_ic_property, 3);
+
+ // Handle store cache miss.
+ __ bind(&miss);
+ __ mov(r2, Operand(Handle<String>(name))); // restore name
+ Handle<Code> ic(Builtins::builtin(Builtins::StoreIC_Miss));
+ __ Jump(ic, RelocInfo::CODE_TARGET);
+
+ // Return the generated code.
+ return GetCode(INTERCEPTOR, name);
+}
+
+
+Object* LoadStubCompiler::CompileLoadField(JSObject* object,
+ JSObject* holder,
+ int index,
+ String* name) {
+ // ----------- S t a t e -------------
+ // -- r2 : name
+ // -- lr : return address
+ // -- [sp] : receiver
+ // -----------------------------------
+ Label miss;
+
+ __ ldr(r0, MemOperand(sp, 0));
+
+ GenerateLoadField(masm(), object, holder, r0, r3, r1, index, &miss);
+ __ bind(&miss);
+ GenerateLoadMiss(masm(), Code::LOAD_IC);
+
+ // Return the generated code.
+ return GetCode(FIELD, name);
+}
+
+
+Object* LoadStubCompiler::CompileLoadCallback(JSObject* object,
+ JSObject* holder,
+ AccessorInfo* callback,
+ String* name) {
+ // ----------- S t a t e -------------
+ // -- r2 : name
+ // -- lr : return address
+ // -- [sp] : receiver
+ // -----------------------------------
+ Label miss;
+
+ __ ldr(r0, MemOperand(sp, 0));
+ GenerateLoadCallback(masm(), object, holder, r0, r2, r3, r1, callback, &miss);
+ __ bind(&miss);
+ GenerateLoadMiss(masm(), Code::LOAD_IC);
+
+ // Return the generated code.
+ return GetCode(CALLBACKS, name);
+}
+
+
+Object* LoadStubCompiler::CompileLoadConstant(JSObject* object,
+ JSObject* holder,
+ Object* value,
+ String* name) {
+ // ----------- S t a t e -------------
+ // -- r2 : name
+ // -- lr : return address
+ // -- [sp] : receiver
+ // -----------------------------------
+ Label miss;
+
+ __ ldr(r0, MemOperand(sp, 0));
+
+ GenerateLoadConstant(masm(), object, holder, r0, r3, r1, value, &miss);
+ __ bind(&miss);
+ GenerateLoadMiss(masm(), Code::LOAD_IC);
+
+ // Return the generated code.
+ return GetCode(CONSTANT_FUNCTION, name);
+}
+
+
+Object* LoadStubCompiler::CompileLoadInterceptor(JSObject* object,
+ JSObject* holder,
+ String* name) {
+ // ----------- S t a t e -------------
+ // -- r2 : name
+ // -- lr : return address
+ // -- [sp] : receiver
+ // -----------------------------------
+ Label miss;
+
+ __ ldr(r0, MemOperand(sp, 0));
+
+ GenerateLoadInterceptor(masm(), object, holder, r0, r2, r3, r1, &miss);
+ __ bind(&miss);
+ GenerateLoadMiss(masm(), Code::LOAD_IC);
+
+ // Return the generated code.
+ return GetCode(INTERCEPTOR, name);
+}
+
+
+// TODO(1224671): IC stubs for keyed loads have not been implemented
+// for ARM.
+Object* KeyedLoadStubCompiler::CompileLoadField(String* name,
+ JSObject* receiver,
+ JSObject* holder,
+ int index) {
+ // ----------- S t a t e -------------
+ // -- lr : return address
+ // -- sp[0] : key
+ // -- sp[4] : receiver
+ // -----------------------------------
+ Label miss;
+
+ __ ldr(r2, MemOperand(sp, 0));
+ __ ldr(r0, MemOperand(sp, kPointerSize));
+
+ __ cmp(r2, Operand(Handle<String>(name)));
+ __ b(ne, &miss);
+
+ GenerateLoadField(masm(), receiver, holder, r0, r3, r1, index, &miss);
+ __ bind(&miss);
+ GenerateLoadMiss(masm(), Code::KEYED_LOAD_IC);
+
+ return GetCode(FIELD, name);
+}
+
+
+Object* KeyedLoadStubCompiler::CompileLoadCallback(String* name,
+ JSObject* receiver,
+ JSObject* holder,
+ AccessorInfo* callback) {
+ // ----------- S t a t e -------------
+ // -- lr : return address
+ // -- sp[0] : key
+ // -- sp[4] : receiver
+ // -----------------------------------
+ Label miss;
+
+ __ ldr(r2, MemOperand(sp, 0));
+ __ ldr(r0, MemOperand(sp, kPointerSize));
+
+ __ cmp(r2, Operand(Handle<String>(name)));
+ __ b(ne, &miss);
+
+ GenerateLoadCallback(masm(), receiver, holder, r0, r2, r3,
+ r1, callback, &miss);
+ __ bind(&miss);
+ GenerateLoadMiss(masm(), Code::KEYED_LOAD_IC);
+
+ return GetCode(CALLBACKS, name);
+}
+
+
+Object* KeyedLoadStubCompiler::CompileLoadConstant(String* name,
+ JSObject* receiver,
+ JSObject* holder,
+ Object* value) {
+ // ----------- S t a t e -------------
+ // -- lr : return address
+ // -- sp[0] : key
+ // -- sp[4] : receiver
+ // -----------------------------------
+ Label miss;
+
+ // Check the key is the cached one
+ __ ldr(r2, MemOperand(sp, 0));
+ __ ldr(r0, MemOperand(sp, kPointerSize));
+
+ __ cmp(r2, Operand(Handle<String>(name)));
+ __ b(ne, &miss);
+
+ GenerateLoadConstant(masm(), receiver, holder, r0, r3, r1, value, &miss);
+ __ bind(&miss);
+ GenerateLoadMiss(masm(), Code::KEYED_LOAD_IC);
+
+ // Return the generated code.
+ return GetCode(CONSTANT_FUNCTION, name);
+}
+
+
+Object* KeyedLoadStubCompiler::CompileLoadInterceptor(JSObject* receiver,
+ JSObject* holder,
+ String* name) {
+ // ----------- S t a t e -------------
+ // -- lr : return address
+ // -- sp[0] : key
+ // -- sp[4] : receiver
+ // -----------------------------------
+ Label miss;
+
+ // Check the key is the cached one
+ __ ldr(r2, MemOperand(sp, 0));
+ __ ldr(r0, MemOperand(sp, kPointerSize));
+
+ __ cmp(r2, Operand(Handle<String>(name)));
+ __ b(ne, &miss);
+
+ GenerateLoadInterceptor(masm(), receiver, holder, r0, r2, r3, r1, &miss);
+ __ bind(&miss);
+ GenerateLoadMiss(masm(), Code::KEYED_LOAD_IC);
+
+ return GetCode(INTERCEPTOR, name);
+}
+
+
+Object* KeyedLoadStubCompiler::CompileLoadArrayLength(String* name) {
+ // ----------- S t a t e -------------
+ // -- lr : return address
+ // -- sp[0] : key
+ // -- sp[4] : receiver
+ // -----------------------------------
+ Label miss;
+
+ // Check the key is the cached one
+ __ ldr(r2, MemOperand(sp, 0));
+ __ ldr(r0, MemOperand(sp, kPointerSize));
+
+ __ cmp(r2, Operand(Handle<String>(name)));
+ __ b(ne, &miss);
+
+ GenerateLoadArrayLength(masm(), r0, r3, &miss);
+ __ bind(&miss);
+ GenerateLoadMiss(masm(), Code::KEYED_LOAD_IC);
+
+ return GetCode(CALLBACKS, name);
+}
+
+
+Object* KeyedLoadStubCompiler::CompileLoadStringLength(String* name) {
+ // ----------- S t a t e -------------
+ // -- lr : return address
+ // -- sp[0] : key
+ // -- sp[4] : receiver
+ // -----------------------------------
+ Label miss;
+ __ IncrementCounter(&Counters::keyed_load_string_length, 1, r1, r3);
+
+ __ ldr(r2, MemOperand(sp));
+ __ ldr(r0, MemOperand(sp, kPointerSize)); // receiver
+
+ __ cmp(r2, Operand(Handle<String>(name)));
+ __ b(ne, &miss);
+
+ GenerateLoadStringLength2(masm(), r0, r1, r3, &miss);
+ __ bind(&miss);
+ __ DecrementCounter(&Counters::keyed_load_string_length, 1, r1, r3);
+
+ GenerateLoadMiss(masm(), Code::KEYED_LOAD_IC);
+
+ return GetCode(CALLBACKS, name);
+}
+
+
+// TODO(1224671): implement the fast case.
+Object* KeyedLoadStubCompiler::CompileLoadFunctionPrototype(String* name) {
+ // ----------- S t a t e -------------
+ // -- lr : return address
+ // -- sp[0] : key
+ // -- sp[4] : receiver
+ // -----------------------------------
+ GenerateLoadMiss(masm(), Code::KEYED_LOAD_IC);
+
+ return GetCode(CALLBACKS, name);
+}
+
+
+Object* KeyedStoreStubCompiler::CompileStoreField(JSObject* object,
+ int index,
+ Map* transition,
+ String* name) {
+ // ----------- S t a t e -------------
+ // -- r0 : value
+ // -- r2 : name
+ // -- lr : return address
+ // -- [sp] : receiver
+ // -----------------------------------
+ Label miss;
+
+ __ IncrementCounter(&Counters::keyed_store_field, 1, r1, r3);
+
+ // Check that the name has not changed.
+ __ cmp(r2, Operand(Handle<String>(name)));
+ __ b(ne, &miss);
+
+ // Load receiver from the stack.
+ __ ldr(r3, MemOperand(sp));
+ // r1 is used as scratch register, r3 and r2 might be clobbered.
+ GenerateStoreField(masm(),
+ Builtins::StoreIC_ExtendStorage,
+ object,
+ index,
+ transition,
+ r3, r2, r1,
+ &miss);
+ __ bind(&miss);
+
+ __ DecrementCounter(&Counters::keyed_store_field, 1, r1, r3);
+ __ mov(r2, Operand(Handle<String>(name))); // restore name register.
+ Handle<Code> ic(Builtins::builtin(Builtins::KeyedStoreIC_Miss));
+ __ Jump(ic, RelocInfo::CODE_TARGET);
+
+ // Return the generated code.
+ return GetCode(transition == NULL ? FIELD : MAP_TRANSITION, name);
+}
+
+
+#undef __
+
+} } // namespace v8::internal
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