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[JAEGER] Completely inline JSOP_INSTANCEOF.
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@ -2753,25 +2753,67 @@ mjit::Compiler::jsop_instanceof()
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return;
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}
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Jump typeCheck;
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if (!rhs->isTypeKnown()) {
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Jump firstSlow;
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bool typeKnown = rhs->isTypeKnown();
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if (!typeKnown) {
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Jump j = frame.testFunObj(Assembler::NotEqual, rhs);
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stubcc.linkExit(j);
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stubcc.leave();
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stubcc.call(stubs::InstanceOf);
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firstSlow = stubcc.masm.jump();
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}
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stubcc.leave();
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stubcc.call(stubs::InstanceOf);
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/* This is sadly necessary because the error case needs the object. */
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frame.dup();
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jsop_getprop(cx->runtime->atomState.classPrototypeAtom, false);
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prepareStubCall();
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stubCall(stubs::FastInstanceOf, Uses(3), Defs(1));
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frame.takeReg(Registers::ReturnReg);
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frame.popn(3);
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frame.pushTypedPayload(JSVAL_MASK32_BOOLEAN, Registers::ReturnReg);
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/* Primitive prototypes are invalid. */
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rhs = frame.peek(-1);
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Jump j = frame.testPrimitive(Assembler::Equal, rhs);
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stubcc.linkExit(j);
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/* Allocate registers up front, because of branchiness. */
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FrameEntry *lhs = frame.peek(-3);
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RegisterID obj = frame.copyDataIntoReg(lhs);
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RegisterID proto = frame.copyDataIntoReg(rhs);
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RegisterID temp = frame.allocReg();
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Jump isFalse = frame.testPrimitive(Assembler::Equal, lhs);
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/* Quick test to avoid wrapped objects. */
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masm.loadPtr(Address(obj, offsetof(JSObject, clasp)), temp);
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masm.load32(Address(temp, offsetof(JSClass, flags)), temp);
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masm.and32(Imm32(JSCLASS_IS_EXTENDED), temp);
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j = masm.branchTest32(Assembler::NonZero, temp, temp);
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stubcc.linkExit(j);
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Address protoAddr(obj, offsetof(JSObject, fslots) + JSSLOT_PROTO * sizeof(Value));
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Label loop = masm.label();
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/* Walk prototype chain, break out on NULL or hit. */
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masm.loadData32(protoAddr, obj);
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Jump isFalse2 = masm.branchTestPtr(Assembler::Zero, obj, obj);
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Jump isTrue = masm.branchPtr(Assembler::NotEqual, obj, proto);
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isTrue.linkTo(loop, &masm);
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masm.move(Imm32(1), temp);
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isTrue = masm.jump();
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isFalse.linkTo(masm.label(), &masm);
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isFalse2.linkTo(masm.label(), &masm);
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masm.move(Imm32(0), temp);
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isTrue.linkTo(masm.label(), &masm);
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frame.freeReg(proto);
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frame.freeReg(obj);
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stubcc.leave();
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stubcc.call(stubs::FastInstanceOf);
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frame.popn(3);
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frame.pushTypedPayload(JSVAL_MASK32_BOOLEAN, temp);
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firstSlow.linkTo(stubcc.masm.label(), &stubcc.masm);
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stubcc.rejoin(1);
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}
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@ -2228,7 +2228,7 @@ stubs::InstanceOf(VMFrame &f)
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return cond;
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}
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JSBool JS_FASTCALL
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void JS_FASTCALL
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stubs::FastInstanceOf(VMFrame &f)
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{
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const Value &lref = f.regs.sp[-1];
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@ -2239,10 +2239,10 @@ stubs::FastInstanceOf(VMFrame &f)
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* has a non-object as its .prototype value.
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*/
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js_ReportValueError(f.cx, JSMSG_BAD_PROTOTYPE, -1, f.regs.sp[-2], NULL);
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THROWV(JS_FALSE);
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THROW();
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}
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return js_IsDelegate(f.cx, &lref.asObject(), f.regs.sp[-3]);
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f.regs.sp[-3].setBoolean(js_IsDelegate(f.cx, &lref.asObject(), f.regs.sp[-3]));
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}
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void JS_FASTCALL
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@ -152,7 +152,7 @@ void JS_FASTCALL ForName(VMFrame &f, JSAtom *atom);
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JSBool JS_FASTCALL ValueToBoolean(VMFrame &f);
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JSString * JS_FASTCALL TypeOf(VMFrame &f);
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JSBool JS_FASTCALL InstanceOf(VMFrame &f);
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JSBool JS_FASTCALL FastInstanceOf(VMFrame &f);
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void JS_FASTCALL FastInstanceOf(VMFrame &f);
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void JS_FASTCALL ArgCnt(VMFrame &f);
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void JS_FASTCALL Unbrand(VMFrame &f);
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