Source code

Revision control

Copy as Markdown

Other Tools

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
* vim: set ts=8 sts=2 et sw=2 tw=80:
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at */
#ifndef jit_IonCacheIRCompiler_h
#define jit_IonCacheIRCompiler_h
#include "mozilla/Attributes.h"
#include "mozilla/Maybe.h"
#include <stdint.h>
#include "jstypes.h"
#include "jit/CacheIR.h"
#include "jit/CacheIRCompiler.h"
#include "jit/CacheIROpsGenerated.h"
#include "jit/CacheIRReader.h"
#include "jit/Registers.h"
#include "jit/RegisterSets.h"
#include "js/Vector.h"
struct JS_PUBLIC_API JSContext;
namespace js {
namespace jit {
class CacheIRWriter;
class CodeOffset;
class IonIC;
class IonICStub;
class IonScript;
class JitCode;
class MacroAssembler;
// IonCacheIRCompiler compiles CacheIR to IonIC native code.
class MOZ_RAII IonCacheIRCompiler : public CacheIRCompiler {
friend class AutoSaveLiveRegisters;
friend class AutoCallVM;
IonCacheIRCompiler(JSContext* cx, TempAllocator& alloc,
const CacheIRWriter& writer, IonIC* ic,
IonScript* ionScript, uint32_t stubDataOffset);
[[nodiscard]] bool init();
JitCode* compile(IonICStub* stub);
#ifdef DEBUG
void assertFloatRegisterAvailable(FloatRegister reg);
IonICPerfSpewer& perfSpewer() { return perfSpewer_; }
uint8_t localTracingSlots() const { return localTracingSlots_; }
const CacheIRWriter& writer_;
IonIC* ic_;
IonScript* ionScript_;
Vector<CodeOffset, 4, SystemAllocPolicy> nextCodeOffsets_;
mozilla::Maybe<LiveRegisterSet> liveRegs_;
mozilla::Maybe<CodeOffset> stubJitCodeOffset_;
bool savedLiveRegs_;
uint8_t localTracingSlots_;
IonICPerfSpewer perfSpewer_;
template <typename T>
T rawPointerStubField(uint32_t offset);
template <typename T>
T rawInt64StubField(uint32_t offset);
void enterStubFrame(MacroAssembler& masm, const AutoSaveLiveRegisters&);
void storeTracedValue(MacroAssembler& masm, ValueOperand value);
void loadTracedValue(MacroAssembler& masm, uint8_t slotIndex,
ValueOperand value);
template <typename Fn, Fn fn>
void callVM(MacroAssembler& masm);
[[nodiscard]] bool emitAddAndStoreSlotShared(
CacheOp op, ObjOperandId objId, uint32_t offsetOffset, ValOperandId rhsId,
uint32_t newShapeOffset, mozilla::Maybe<uint32_t> numNewSlotsOffset);
template <typename IdType>
[[nodiscard]] bool emitCallScriptedProxyGetShared(
ValOperandId targetId, ObjOperandId receiverId, ObjOperandId handlerId,
ObjOperandId trapId, IdType id, uint32_t nargsAndFlags);
void pushStubCodePointer();
} // namespace jit
} // namespace js
#endif /* jit_IonCacheIRCompiler_h */