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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
* vim: set ts=8 sts=4 et sw=4 tw=99:
* 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 http://mozilla.org/MPL/2.0/. */
#ifndef jit_BaselineCompiler_h
#define jit_BaselineCompiler_h
#include "jit/FixedList.h"
#if defined(JS_CODEGEN_X86)
# include "jit/x86/BaselineCompiler-x86.h"
#elif defined(JS_CODEGEN_X64)
# include "jit/x64/BaselineCompiler-x64.h"
#elif defined(JS_CODEGEN_ARM)
# include "jit/arm/BaselineCompiler-arm.h"
#elif defined(JS_CODEGEN_ARM64)
# include "jit/arm64/BaselineCompiler-arm64.h"
#elif defined(JS_CODEGEN_MIPS32)
# include "jit/mips32/BaselineCompiler-mips32.h"
#elif defined(JS_CODEGEN_MIPS64)
# include "jit/mips64/BaselineCompiler-mips64.h"
#elif defined(JS_CODEGEN_NONE)
# include "jit/none/BaselineCompiler-none.h"
#else
# error "Unknown architecture!"
#endif
namespace js {
namespace jit {
#define OPCODE_LIST(_) \
_(JSOP_NOP) \
_(JSOP_NOP_DESTRUCTURING) \
_(JSOP_LABEL) \
_(JSOP_POP) \
_(JSOP_POPN) \
_(JSOP_DUPAT) \
_(JSOP_ENTERWITH) \
_(JSOP_LEAVEWITH) \
_(JSOP_DUP) \
_(JSOP_DUP2) \
_(JSOP_SWAP) \
_(JSOP_PICK) \
_(JSOP_UNPICK) \
_(JSOP_GOTO) \
_(JSOP_IFEQ) \
_(JSOP_IFNE) \
_(JSOP_AND) \
_(JSOP_OR) \
_(JSOP_NOT) \
_(JSOP_POS) \
_(JSOP_LOOPHEAD) \
_(JSOP_LOOPENTRY) \
_(JSOP_VOID) \
_(JSOP_UNDEFINED) \
_(JSOP_HOLE) \
_(JSOP_NULL) \
_(JSOP_TRUE) \
_(JSOP_FALSE) \
_(JSOP_ZERO) \
_(JSOP_ONE) \
_(JSOP_INT8) \
_(JSOP_INT32) \
_(JSOP_UINT16) \
_(JSOP_UINT24) \
_(JSOP_DOUBLE) \
_(JSOP_STRING) \
_(JSOP_SYMBOL) \
_(JSOP_OBJECT) \
_(JSOP_CALLSITEOBJ) \
_(JSOP_REGEXP) \
_(JSOP_LAMBDA) \
_(JSOP_LAMBDA_ARROW) \
_(JSOP_SETFUNNAME) \
_(JSOP_BITOR) \
_(JSOP_BITXOR) \
_(JSOP_BITAND) \
_(JSOP_LSH) \
_(JSOP_RSH) \
_(JSOP_URSH) \
_(JSOP_ADD) \
_(JSOP_SUB) \
_(JSOP_MUL) \
_(JSOP_DIV) \
_(JSOP_MOD) \
_(JSOP_POW) \
_(JSOP_LT) \
_(JSOP_LE) \
_(JSOP_GT) \
_(JSOP_GE) \
_(JSOP_EQ) \
_(JSOP_NE) \
_(JSOP_STRICTEQ) \
_(JSOP_STRICTNE) \
_(JSOP_CONDSWITCH) \
_(JSOP_CASE) \
_(JSOP_DEFAULT) \
_(JSOP_LINENO) \
_(JSOP_BITNOT) \
_(JSOP_NEG) \
_(JSOP_NEWARRAY) \
_(JSOP_NEWARRAY_COPYONWRITE) \
_(JSOP_INITELEM_ARRAY) \
_(JSOP_NEWOBJECT) \
_(JSOP_NEWINIT) \
_(JSOP_INITELEM) \
_(JSOP_INITELEM_GETTER) \
_(JSOP_INITELEM_SETTER) \
_(JSOP_INITELEM_INC) \
_(JSOP_MUTATEPROTO) \
_(JSOP_INITPROP) \
_(JSOP_INITLOCKEDPROP) \
_(JSOP_INITHIDDENPROP) \
_(JSOP_INITPROP_GETTER) \
_(JSOP_INITPROP_SETTER) \
_(JSOP_ARRAYPUSH) \
_(JSOP_GETELEM) \
_(JSOP_SETELEM) \
_(JSOP_STRICTSETELEM) \
_(JSOP_CALLELEM) \
_(JSOP_DELELEM) \
_(JSOP_STRICTDELELEM) \
_(JSOP_IN) \
_(JSOP_GETGNAME) \
_(JSOP_BINDGNAME) \
_(JSOP_SETGNAME) \
_(JSOP_STRICTSETGNAME) \
_(JSOP_SETNAME) \
_(JSOP_STRICTSETNAME) \
_(JSOP_GETPROP) \
_(JSOP_SETPROP) \
_(JSOP_STRICTSETPROP) \
_(JSOP_CALLPROP) \
_(JSOP_DELPROP) \
_(JSOP_STRICTDELPROP) \
_(JSOP_LENGTH) \
_(JSOP_GETXPROP) \
_(JSOP_GETALIASEDVAR) \
_(JSOP_SETALIASEDVAR) \
_(JSOP_GETNAME) \
_(JSOP_BINDNAME) \
_(JSOP_DELNAME) \
_(JSOP_GETIMPORT) \
_(JSOP_GETINTRINSIC) \
_(JSOP_BINDVAR) \
_(JSOP_DEFVAR) \
_(JSOP_DEFCONST) \
_(JSOP_DEFLET) \
_(JSOP_DEFFUN) \
_(JSOP_GETLOCAL) \
_(JSOP_SETLOCAL) \
_(JSOP_GETARG) \
_(JSOP_SETARG) \
_(JSOP_CHECKLEXICAL) \
_(JSOP_INITLEXICAL) \
_(JSOP_INITGLEXICAL) \
_(JSOP_CHECKALIASEDLEXICAL) \
_(JSOP_INITALIASEDLEXICAL) \
_(JSOP_UNINITIALIZED) \
_(JSOP_CALL) \
_(JSOP_CALL_IGNORES_RV) \
_(JSOP_CALLITER) \
_(JSOP_FUNCALL) \
_(JSOP_FUNAPPLY) \
_(JSOP_NEW) \
_(JSOP_EVAL) \
_(JSOP_STRICTEVAL) \
_(JSOP_SPREADCALL) \
_(JSOP_SPREADNEW) \
_(JSOP_SPREADEVAL) \
_(JSOP_STRICTSPREADEVAL) \
_(JSOP_OPTIMIZE_SPREADCALL)\
_(JSOP_IMPLICITTHIS) \
_(JSOP_GIMPLICITTHIS) \
_(JSOP_INSTANCEOF) \
_(JSOP_TYPEOF) \
_(JSOP_TYPEOFEXPR) \
_(JSOP_THROWMSG) \
_(JSOP_THROW) \
_(JSOP_THROWING) \
_(JSOP_TRY) \
_(JSOP_FINALLY) \
_(JSOP_GOSUB) \
_(JSOP_RETSUB) \
_(JSOP_PUSHLEXICALENV) \
_(JSOP_POPLEXICALENV) \
_(JSOP_FRESHENLEXICALENV) \
_(JSOP_RECREATELEXICALENV) \
_(JSOP_DEBUGLEAVELEXICALENV) \
_(JSOP_PUSHVARENV) \
_(JSOP_POPVARENV) \
_(JSOP_EXCEPTION) \
_(JSOP_DEBUGGER) \
_(JSOP_ARGUMENTS) \
_(JSOP_RUNONCE) \
_(JSOP_REST) \
_(JSOP_TOASYNC) \
_(JSOP_TOASYNCGEN) \
_(JSOP_TOID) \
_(JSOP_TOSTRING) \
_(JSOP_TABLESWITCH) \
_(JSOP_ITER) \
_(JSOP_MOREITER) \
_(JSOP_ISNOITER) \
_(JSOP_ENDITER) \
_(JSOP_ISGENCLOSING) \
_(JSOP_GENERATOR) \
_(JSOP_INITIALYIELD) \
_(JSOP_YIELD) \
_(JSOP_AWAIT) \
_(JSOP_DEBUGAFTERYIELD) \
_(JSOP_FINALYIELDRVAL) \
_(JSOP_RESUME) \
_(JSOP_CALLEE) \
_(JSOP_GETRVAL) \
_(JSOP_SETRVAL) \
_(JSOP_RETRVAL) \
_(JSOP_RETURN) \
_(JSOP_FUNCTIONTHIS) \
_(JSOP_GLOBALTHIS) \
_(JSOP_CHECKISOBJ) \
_(JSOP_CHECKISCALLABLE) \
_(JSOP_CHECKTHIS) \
_(JSOP_CHECKRETURN) \
_(JSOP_NEWTARGET) \
_(JSOP_SUPERCALL) \
_(JSOP_SPREADSUPERCALL) \
_(JSOP_THROWSETCONST) \
_(JSOP_THROWSETALIASEDCONST) \
_(JSOP_THROWSETCALLEE) \
_(JSOP_INITHIDDENPROP_GETTER) \
_(JSOP_INITHIDDENPROP_SETTER) \
_(JSOP_INITHIDDENELEM) \
_(JSOP_INITHIDDENELEM_GETTER) \
_(JSOP_INITHIDDENELEM_SETTER) \
_(JSOP_CHECKOBJCOERCIBLE) \
_(JSOP_DEBUGCHECKSELFHOSTED) \
_(JSOP_JUMPTARGET) \
_(JSOP_IS_CONSTRUCTING) \
_(JSOP_TRY_DESTRUCTURING_ITERCLOSE)
class BaselineCompiler : public BaselineCompilerSpecific
{
FixedList<Label> labels_;
NonAssertingLabel return_;
NonAssertingLabel postBarrierSlot_;
// Native code offset right before the scope chain is initialized.
CodeOffset prologueOffset_;
// Native code offset right before the frame is popped and the method
// returned from.
CodeOffset epilogueOffset_;
// Native code offset right after debug prologue and epilogue, or
// equivalent positions when debug mode is off.
CodeOffset postDebugPrologueOffset_;
// For each INITIALYIELD or YIELD or AWAIT op, this Vector maps the yield
// index to the bytecode offset of the next op.
Vector<uint32_t> yieldAndAwaitOffsets_;
// Whether any on stack arguments are modified.
bool modifiesArguments_;
Label* labelOf(jsbytecode* pc) {
return &labels_[script->pcToOffset(pc)];
}
// If a script has more |nslots| than this, then emit code to do an
// early stack check.
static const unsigned EARLY_STACK_CHECK_SLOT_COUNT = 128;
bool needsEarlyStackCheck() const {
return script->nslots() > EARLY_STACK_CHECK_SLOT_COUNT;
}
public:
BaselineCompiler(JSContext* cx, TempAllocator& alloc, JSScript* script);
MOZ_MUST_USE bool init();
MethodStatus compile();
private:
MethodStatus emitBody();
MOZ_MUST_USE bool emitCheckThis(ValueOperand val);
void emitLoadReturnValue(ValueOperand val);
void emitInitializeLocals();
MOZ_MUST_USE bool emitPrologue();
MOZ_MUST_USE bool emitEpilogue();
MOZ_MUST_USE bool emitOutOfLinePostBarrierSlot();
MOZ_MUST_USE bool emitIC(ICStub* stub, ICEntry::Kind kind);
MOZ_MUST_USE bool emitOpIC(ICStub* stub) {
return emitIC(stub, ICEntry::Kind_Op);
}
MOZ_MUST_USE bool emitNonOpIC(ICStub* stub) {
return emitIC(stub, ICEntry::Kind_NonOp);
}
MOZ_MUST_USE bool emitStackCheck(bool earlyCheck=false);
MOZ_MUST_USE bool emitInterruptCheck();
MOZ_MUST_USE bool emitWarmUpCounterIncrement(bool allowOsr=true);
MOZ_MUST_USE bool emitArgumentTypeChecks();
void emitIsDebuggeeCheck();
MOZ_MUST_USE bool emitDebugPrologue();
MOZ_MUST_USE bool emitDebugTrap();
MOZ_MUST_USE bool emitTraceLoggerEnter();
MOZ_MUST_USE bool emitTraceLoggerExit();
MOZ_MUST_USE bool emitTraceLoggerResume(Register script, AllocatableGeneralRegisterSet& regs);
void emitProfilerEnterFrame();
void emitProfilerExitFrame();
MOZ_MUST_USE bool initEnvironmentChain();
void storeValue(const StackValue* source, const Address& dest,
const ValueOperand& scratch);
#define EMIT_OP(op) bool emit_##op();
OPCODE_LIST(EMIT_OP)
#undef EMIT_OP
// JSOP_NEG, JSOP_BITNOT
MOZ_MUST_USE bool emitUnaryArith();
// JSOP_BITXOR, JSOP_LSH, JSOP_ADD etc.
MOZ_MUST_USE bool emitBinaryArith();
// Handles JSOP_LT, JSOP_GT, and friends
MOZ_MUST_USE bool emitCompare();
MOZ_MUST_USE bool emitReturn();
MOZ_MUST_USE bool emitToBoolean();
MOZ_MUST_USE bool emitTest(bool branchIfTrue);
MOZ_MUST_USE bool emitAndOr(bool branchIfTrue);
MOZ_MUST_USE bool emitCall();
MOZ_MUST_USE bool emitSpreadCall();
MOZ_MUST_USE bool emitInitPropGetterSetter();
MOZ_MUST_USE bool emitInitElemGetterSetter();
MOZ_MUST_USE bool emitFormalArgAccess(uint32_t arg, bool get);
MOZ_MUST_USE bool emitThrowConstAssignment();
MOZ_MUST_USE bool emitUninitializedLexicalCheck(const ValueOperand& val);
MOZ_MUST_USE bool emitIsMagicValue();
MOZ_MUST_USE bool addPCMappingEntry(bool addIndexEntry);
MOZ_MUST_USE bool addYieldAndAwaitOffset();
void getEnvironmentCoordinateObject(Register reg);
Address getEnvironmentCoordinateAddressFromObject(Register objReg, Register reg);
Address getEnvironmentCoordinateAddress(Register reg);
};
extern const VMFunction NewArrayCopyOnWriteInfo;
} // namespace jit
} // namespace js
#endif /* jit_BaselineCompiler_h */
|
