#ifndef V8_ARM_CODE_STUBS_ARM_H_
#define V8_ARM_CODE_STUBS_ARM_H_
-#include "src/ic-inl.h"
-
namespace v8 {
namespace internal {
void ArrayNativeCode(MacroAssembler* masm, Label* call_generic_code);
-class StoreBufferOverflowStub: public PlatformCodeStub {
- public:
- StoreBufferOverflowStub(Isolate* isolate, SaveFPRegsMode save_fp)
- : PlatformCodeStub(isolate), save_doubles_(save_fp) {}
-
- void Generate(MacroAssembler* masm);
-
- static void GenerateFixedRegStubsAheadOfTime(Isolate* isolate);
- virtual bool SometimesSetsUpAFrame() { return false; }
-
- private:
- SaveFPRegsMode save_doubles_;
-
- Major MajorKey() const { return StoreBufferOverflow; }
- int MinorKey() const { return (save_doubles_ == kSaveFPRegs) ? 1 : 0; }
-};
-
-
class StringHelper : public AllStatic {
public:
// Generate code for copying a large number of characters. This function
Register scratch,
String::Encoding encoding);
+ // Compares two flat one-byte strings and returns result in r0.
+ static void GenerateCompareFlatOneByteStrings(
+ MacroAssembler* masm, Register left, Register right, Register scratch1,
+ Register scratch2, Register scratch3, Register scratch4);
- // Generate string hash.
- static void GenerateHashInit(MacroAssembler* masm,
- Register hash,
- Register character);
-
- static void GenerateHashAddCharacter(MacroAssembler* masm,
- Register hash,
- Register character);
-
- static void GenerateHashGetHash(MacroAssembler* masm,
- Register hash);
-
- private:
- DISALLOW_IMPLICIT_CONSTRUCTORS(StringHelper);
-};
-
-
-class SubStringStub: public PlatformCodeStub {
- public:
- explicit SubStringStub(Isolate* isolate) : PlatformCodeStub(isolate) {}
-
- private:
- Major MajorKey() const { return SubString; }
- int MinorKey() const { return 0; }
-
- void Generate(MacroAssembler* masm);
-};
-
-
-
-class StringCompareStub: public PlatformCodeStub {
- public:
- explicit StringCompareStub(Isolate* isolate) : PlatformCodeStub(isolate) { }
-
- // Compares two flat ASCII strings and returns result in r0.
- static void GenerateCompareFlatAsciiStrings(MacroAssembler* masm,
- Register left,
- Register right,
+ // Compares two flat one-byte strings for equality and returns result in r0.
+ static void GenerateFlatOneByteStringEquals(MacroAssembler* masm,
+ Register left, Register right,
Register scratch1,
Register scratch2,
- Register scratch3,
- Register scratch4);
-
- // Compares two flat ASCII strings for equality and returns result
- // in r0.
- static void GenerateFlatAsciiStringEquals(MacroAssembler* masm,
- Register left,
- Register right,
- Register scratch1,
- Register scratch2,
- Register scratch3);
+ Register scratch3);
private:
- virtual Major MajorKey() const { return StringCompare; }
- virtual int MinorKey() const { return 0; }
- virtual void Generate(MacroAssembler* masm);
-
- static void GenerateAsciiCharsCompareLoop(MacroAssembler* masm,
- Register left,
- Register right,
- Register length,
- Register scratch1,
- Register scratch2,
- Label* chars_not_equal);
+ static void GenerateOneByteCharsCompareLoop(
+ MacroAssembler* masm, Register left, Register right, Register length,
+ Register scratch1, Register scratch2, Label* chars_not_equal);
+
+ DISALLOW_IMPLICIT_CONSTRUCTORS(StringHelper);
};
// so you don't have to set up the frame.
class WriteInt32ToHeapNumberStub : public PlatformCodeStub {
public:
- WriteInt32ToHeapNumberStub(Isolate* isolate,
- Register the_int,
- Register the_heap_number,
- Register scratch)
- : PlatformCodeStub(isolate),
- the_int_(the_int),
- the_heap_number_(the_heap_number),
- scratch_(scratch) { }
+ WriteInt32ToHeapNumberStub(Isolate* isolate, Register the_int,
+ Register the_heap_number, Register scratch)
+ : PlatformCodeStub(isolate) {
+ minor_key_ = IntRegisterBits::encode(the_int.code()) |
+ HeapNumberRegisterBits::encode(the_heap_number.code()) |
+ ScratchRegisterBits::encode(scratch.code());
+ }
static void GenerateFixedRegStubsAheadOfTime(Isolate* isolate);
private:
- Register the_int_;
- Register the_heap_number_;
- Register scratch_;
+ Register the_int() const {
+ return Register::from_code(IntRegisterBits::decode(minor_key_));
+ }
+
+ Register the_heap_number() const {
+ return Register::from_code(HeapNumberRegisterBits::decode(minor_key_));
+ }
+
+ Register scratch() const {
+ return Register::from_code(ScratchRegisterBits::decode(minor_key_));
+ }
// Minor key encoding in 16 bits.
class IntRegisterBits: public BitField<int, 0, 4> {};
class HeapNumberRegisterBits: public BitField<int, 4, 4> {};
class ScratchRegisterBits: public BitField<int, 8, 4> {};
- Major MajorKey() const { return WriteInt32ToHeapNumber; }
- int MinorKey() const {
- // Encode the parameters in a unique 16 bit value.
- return IntRegisterBits::encode(the_int_.code())
- | HeapNumberRegisterBits::encode(the_heap_number_.code())
- | ScratchRegisterBits::encode(scratch_.code());
- }
-
- void Generate(MacroAssembler* masm);
+ DEFINE_NULL_CALL_INTERFACE_DESCRIPTOR();
+ DEFINE_PLATFORM_CODE_STUB(WriteInt32ToHeapNumber, PlatformCodeStub);
};
RememberedSetAction remembered_set_action,
SaveFPRegsMode fp_mode)
: PlatformCodeStub(isolate),
- object_(object),
- value_(value),
- address_(address),
- remembered_set_action_(remembered_set_action),
- save_fp_regs_mode_(fp_mode),
regs_(object, // An input reg.
address, // An input reg.
value) { // One scratch reg.
+ minor_key_ = ObjectBits::encode(object.code()) |
+ ValueBits::encode(value.code()) |
+ AddressBits::encode(address.code()) |
+ RememberedSetActionBits::encode(remembered_set_action) |
+ SaveFPRegsModeBits::encode(fp_mode);
}
+ RecordWriteStub(uint32_t key, Isolate* isolate)
+ : PlatformCodeStub(key, isolate), regs_(object(), address(), value()) {}
+
enum Mode {
STORE_BUFFER_ONLY,
INCREMENTAL,
2 * Assembler::kInstrSize);
}
+ DEFINE_NULL_CALL_INTERFACE_DESCRIPTOR();
+
private:
// This is a helper class for freeing up 3 scratch registers. The input is
// two registers that must be preserved and one scratch register provided by
kUpdateRememberedSetOnNoNeedToInformIncrementalMarker
};
- void Generate(MacroAssembler* masm);
+ virtual inline Major MajorKey() const FINAL OVERRIDE { return RecordWrite; }
+
+ virtual void Generate(MacroAssembler* masm) OVERRIDE;
void GenerateIncremental(MacroAssembler* masm, Mode mode);
void CheckNeedsToInformIncrementalMarker(
MacroAssembler* masm,
Mode mode);
void InformIncrementalMarker(MacroAssembler* masm);
- Major MajorKey() const { return RecordWrite; }
+ void Activate(Code* code) {
+ code->GetHeap()->incremental_marking()->ActivateGeneratedStub(code);
+ }
- int MinorKey() const {
- return ObjectBits::encode(object_.code()) |
- ValueBits::encode(value_.code()) |
- AddressBits::encode(address_.code()) |
- RememberedSetActionBits::encode(remembered_set_action_) |
- SaveFPRegsModeBits::encode(save_fp_regs_mode_);
+ Register object() const {
+ return Register::from_code(ObjectBits::decode(minor_key_));
}
- void Activate(Code* code) {
- code->GetHeap()->incremental_marking()->ActivateGeneratedStub(code);
+ Register value() const {
+ return Register::from_code(ValueBits::decode(minor_key_));
+ }
+
+ Register address() const {
+ return Register::from_code(AddressBits::decode(minor_key_));
+ }
+
+ RememberedSetAction remembered_set_action() const {
+ return RememberedSetActionBits::decode(minor_key_);
+ }
+
+ SaveFPRegsMode save_fp_regs_mode() const {
+ return SaveFPRegsModeBits::decode(minor_key_);
}
class ObjectBits: public BitField<int, 0, 4> {};
class RememberedSetActionBits: public BitField<RememberedSetAction, 12, 1> {};
class SaveFPRegsModeBits: public BitField<SaveFPRegsMode, 13, 1> {};
- Register object_;
- Register value_;
- Register address_;
- RememberedSetAction remembered_set_action_;
- SaveFPRegsMode save_fp_regs_mode_;
Label slow_;
RegisterAllocation regs_;
+
+ DISALLOW_COPY_AND_ASSIGN(RecordWriteStub);
};
class DirectCEntryStub: public PlatformCodeStub {
public:
explicit DirectCEntryStub(Isolate* isolate) : PlatformCodeStub(isolate) {}
- void Generate(MacroAssembler* masm);
void GenerateCall(MacroAssembler* masm, Register target);
private:
- Major MajorKey() const { return DirectCEntry; }
- int MinorKey() const { return 0; }
-
bool NeedsImmovableCode() { return true; }
+
+ DEFINE_NULL_CALL_INTERFACE_DESCRIPTOR();
+ DEFINE_PLATFORM_CODE_STUB(DirectCEntry, PlatformCodeStub);
};
enum LookupMode { POSITIVE_LOOKUP, NEGATIVE_LOOKUP };
NameDictionaryLookupStub(Isolate* isolate, LookupMode mode)
- : PlatformCodeStub(isolate), mode_(mode) { }
-
- void Generate(MacroAssembler* masm);
+ : PlatformCodeStub(isolate) {
+ minor_key_ = LookupModeBits::encode(mode);
+ }
static void GenerateNegativeLookup(MacroAssembler* masm,
Label* miss,
NameDictionary::kHeaderSize +
NameDictionary::kElementsStartIndex * kPointerSize;
- Major MajorKey() const { return NameDictionaryLookup; }
-
- int MinorKey() const { return LookupModeBits::encode(mode_); }
+ LookupMode mode() const { return LookupModeBits::decode(minor_key_); }
class LookupModeBits: public BitField<LookupMode, 0, 1> {};
- LookupMode mode_;
+ DEFINE_NULL_CALL_INTERFACE_DESCRIPTOR();
+ DEFINE_PLATFORM_CODE_STUB(NameDictionaryLookup, PlatformCodeStub);
};
-
-class PlatformInterfaceDescriptor {
- public:
- explicit PlatformInterfaceDescriptor(
- TargetAddressStorageMode storage_mode)
- : storage_mode_(storage_mode) { }
-
- TargetAddressStorageMode storage_mode() { return storage_mode_; }
-
- private:
- TargetAddressStorageMode storage_mode_;
-};
-
-
} } // namespace v8::internal
#endif // V8_ARM_CODE_STUBS_ARM_H_
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