| 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
|
|
|