- Jump end = jump();
-
- notInt32.link(this);
- if (!opType.definitelyIsNumber())
- addSlowCase(branch32(Above, regT1, Imm32(JSValue::LowestTag)));
- move(Imm32(constant), regT2);
- convertInt32ToDouble(regT2, fpRegT0);
- emitLoadDouble(op, fpRegT1);
- subDouble(fpRegT0, fpRegT1);
- emitStoreDouble(dst, fpRegT1);
-
- end.link(this);
-}
-
-void JIT::emitSlow_op_sub(Instruction* currentInstruction, Vector<SlowCaseEntry>::iterator& iter)
-{
- unsigned dst = currentInstruction[1].u.operand;
- unsigned op1 = currentInstruction[2].u.operand;
- unsigned op2 = currentInstruction[3].u.operand;
- OperandTypes types = OperandTypes::fromInt(currentInstruction[4].u.operand);
-
- if (isOperandConstantImmediateInt(op2)) {
- linkSlowCase(iter); // overflow check
-
- if (!supportsFloatingPoint() || !types.first().definitelyIsNumber())
- linkSlowCase(iter); // int32 or double check
- } else {
- linkSlowCase(iter); // overflow check
-
- if (!supportsFloatingPoint()) {
- linkSlowCase(iter); // int32 check
- linkSlowCase(iter); // int32 check
- } else {
- if (!types.first().definitelyIsNumber())
- linkSlowCase(iter); // double check
-
- if (!types.second().definitelyIsNumber()) {
- linkSlowCase(iter); // int32 check
- linkSlowCase(iter); // double check
- }
- }
- }
-
- JITStubCall stubCall(this, cti_op_sub);
- stubCall.addArgument(op1);
- stubCall.addArgument(op2);
- stubCall.call(dst);
-}
-
-void JIT::emitBinaryDoubleOp(OpcodeID opcodeID, unsigned dst, unsigned op1, unsigned op2, OperandTypes types, JumpList& notInt32Op1, JumpList& notInt32Op2, bool op1IsInRegisters, bool op2IsInRegisters)
-{
- JumpList end;
-
- if (!notInt32Op1.empty()) {
- // Double case 1: Op1 is not int32; Op2 is unknown.
- notInt32Op1.link(this);
-
- ASSERT(op1IsInRegisters);
-
- // Verify Op1 is double.
- if (!types.first().definitelyIsNumber())
- addSlowCase(branch32(Above, regT1, Imm32(JSValue::LowestTag)));
-
- if (!op2IsInRegisters)
- emitLoad(op2, regT3, regT2);
-
- Jump doubleOp2 = branch32(Below, regT3, Imm32(JSValue::LowestTag));
-
- if (!types.second().definitelyIsNumber())
- addSlowCase(branch32(NotEqual, regT3, Imm32(JSValue::Int32Tag)));
-
- convertInt32ToDouble(regT2, fpRegT0);
- Jump doTheMath = jump();
-
- // Load Op2 as double into double register.
- doubleOp2.link(this);
- emitLoadDouble(op2, fpRegT0);
-
- // Do the math.
- doTheMath.link(this);
- switch (opcodeID) {
- case op_mul:
- emitLoadDouble(op1, fpRegT2);
- mulDouble(fpRegT2, fpRegT0);
- emitStoreDouble(dst, fpRegT0);
- break;
- case op_add:
- emitLoadDouble(op1, fpRegT2);
- addDouble(fpRegT2, fpRegT0);
- emitStoreDouble(dst, fpRegT0);
- break;
- case op_sub:
- emitLoadDouble(op1, fpRegT1);
- subDouble(fpRegT0, fpRegT1);
- emitStoreDouble(dst, fpRegT1);
- break;
- case op_div:
- emitLoadDouble(op1, fpRegT1);
- divDouble(fpRegT0, fpRegT1);
- emitStoreDouble(dst, fpRegT1);
- break;
- case op_jnless:
- emitLoadDouble(op1, fpRegT2);
- addJump(branchDouble(DoubleLessThanOrEqualOrUnordered, fpRegT0, fpRegT2), dst);
- break;
- case op_jless:
- emitLoadDouble(op1, fpRegT2);
- addJump(branchDouble(DoubleLessThan, fpRegT2, fpRegT0), dst);
- break;
- case op_jnlesseq:
- emitLoadDouble(op1, fpRegT2);
- addJump(branchDouble(DoubleLessThanOrUnordered, fpRegT0, fpRegT2), dst);
- break;
- default:
- ASSERT_NOT_REACHED();
- }
-
- if (!notInt32Op2.empty())
- end.append(jump());
- }
-
- if (!notInt32Op2.empty()) {
- // Double case 2: Op1 is int32; Op2 is not int32.
- notInt32Op2.link(this);
-
- ASSERT(op2IsInRegisters);
-
- if (!op1IsInRegisters)
- emitLoadPayload(op1, regT0);
-
- convertInt32ToDouble(regT0, fpRegT0);
-
- // Verify op2 is double.
- if (!types.second().definitelyIsNumber())
- addSlowCase(branch32(Above, regT3, Imm32(JSValue::LowestTag)));
-
- // Do the math.
- switch (opcodeID) {
- case op_mul:
- emitLoadDouble(op2, fpRegT2);
- mulDouble(fpRegT2, fpRegT0);
- emitStoreDouble(dst, fpRegT0);
- break;
- case op_add:
- emitLoadDouble(op2, fpRegT2);
- addDouble(fpRegT2, fpRegT0);
- emitStoreDouble(dst, fpRegT0);
- break;
- case op_sub:
- emitLoadDouble(op2, fpRegT2);
- subDouble(fpRegT2, fpRegT0);
- emitStoreDouble(dst, fpRegT0);
- break;
- case op_div:
- emitLoadDouble(op2, fpRegT2);
- divDouble(fpRegT2, fpRegT0);
- emitStoreDouble(dst, fpRegT0);
- break;
- case op_jnless:
- emitLoadDouble(op2, fpRegT1);
- addJump(branchDouble(DoubleLessThanOrEqualOrUnordered, fpRegT1, fpRegT0), dst);
- break;
- case op_jless:
- emitLoadDouble(op2, fpRegT1);
- addJump(branchDouble(DoubleLessThan, fpRegT0, fpRegT1), dst);
- break;
- case op_jnlesseq:
- emitLoadDouble(op2, fpRegT1);
- addJump(branchDouble(DoubleLessThanOrUnordered, fpRegT1, fpRegT0), dst);
- break;
- default:
- ASSERT_NOT_REACHED();
- }
- }
-
- end.link(this);
-}
-
-// Multiplication (*)
-
-void JIT::emit_op_mul(Instruction* currentInstruction)
-{
- unsigned dst = currentInstruction[1].u.operand;
- unsigned op1 = currentInstruction[2].u.operand;
- unsigned op2 = currentInstruction[3].u.operand;
- OperandTypes types = OperandTypes::fromInt(currentInstruction[4].u.operand);
-
- JumpList notInt32Op1;
- JumpList notInt32Op2;
-
- emitLoad2(op1, regT1, regT0, op2, regT3, regT2);
- notInt32Op1.append(branch32(NotEqual, regT1, Imm32(JSValue::Int32Tag)));
- notInt32Op2.append(branch32(NotEqual, regT3, Imm32(JSValue::Int32Tag)));
-
- // Int32 case.
- move(regT0, regT3);
- addSlowCase(branchMul32(Overflow, regT2, regT0));
- addSlowCase(branchTest32(Zero, regT0));
- emitStoreInt32(dst, regT0, (op1 == dst || op2 == dst));
-
- if (!supportsFloatingPoint()) {
- addSlowCase(notInt32Op1);
- addSlowCase(notInt32Op2);
- return;
- }
- Jump end = jump();
-
- // Double case.
- emitBinaryDoubleOp(op_mul, dst, op1, op2, types, notInt32Op1, notInt32Op2);
- end.link(this);
-}
-
-void JIT::emitSlow_op_mul(Instruction* currentInstruction, Vector<SlowCaseEntry>::iterator& iter)
-{
- unsigned dst = currentInstruction[1].u.operand;
- unsigned op1 = currentInstruction[2].u.operand;
- unsigned op2 = currentInstruction[3].u.operand;
- OperandTypes types = OperandTypes::fromInt(currentInstruction[4].u.operand);
-
- Jump overflow = getSlowCase(iter); // overflow check
- linkSlowCase(iter); // zero result check
-
- Jump negZero = branchOr32(Signed, regT2, regT3);
- emitStoreInt32(dst, Imm32(0), (op1 == dst || op2 == dst));
-
- emitJumpSlowToHot(jump(), OPCODE_LENGTH(op_mul));
-
- negZero.link(this);
- overflow.link(this);
-
- if (!supportsFloatingPoint()) {
- linkSlowCase(iter); // int32 check
- linkSlowCase(iter); // int32 check
- }
-
- if (supportsFloatingPoint()) {
- if (!types.first().definitelyIsNumber())
- linkSlowCase(iter); // double check
-
- if (!types.second().definitelyIsNumber()) {
- linkSlowCase(iter); // int32 check
- linkSlowCase(iter); // double check
- }
- }
-
- Label jitStubCall(this);
- JITStubCall stubCall(this, cti_op_mul);
- stubCall.addArgument(op1);
- stubCall.addArgument(op2);
- stubCall.call(dst);
-}
-
-// Division (/)
-
-void JIT::emit_op_div(Instruction* currentInstruction)
-{
- unsigned dst = currentInstruction[1].u.operand;
- unsigned op1 = currentInstruction[2].u.operand;
- unsigned op2 = currentInstruction[3].u.operand;
- OperandTypes types = OperandTypes::fromInt(currentInstruction[4].u.operand);
-
- if (!supportsFloatingPoint()) {
- addSlowCase(jump());
- return;
- }
-
- // Int32 divide.
- JumpList notInt32Op1;
- JumpList notInt32Op2;
-
- JumpList end;
-
- emitLoad2(op1, regT1, regT0, op2, regT3, regT2);
-
- notInt32Op1.append(branch32(NotEqual, regT1, Imm32(JSValue::Int32Tag)));
- notInt32Op2.append(branch32(NotEqual, regT3, Imm32(JSValue::Int32Tag)));
-
- convertInt32ToDouble(regT0, fpRegT0);
- convertInt32ToDouble(regT2, fpRegT1);
- divDouble(fpRegT1, fpRegT0);
-
- JumpList doubleResult;
- branchConvertDoubleToInt32(fpRegT0, regT0, doubleResult, fpRegT1);
-
- // Int32 result.
- emitStoreInt32(dst, regT0, (op1 == dst || op2 == dst));
- end.append(jump());
-
- // Double result.
- doubleResult.link(this);
- emitStoreDouble(dst, fpRegT0);
- end.append(jump());
-
- // Double divide.
- emitBinaryDoubleOp(op_div, dst, op1, op2, types, notInt32Op1, notInt32Op2);
- end.link(this);
-}
-
-void JIT::emitSlow_op_div(Instruction* currentInstruction, Vector<SlowCaseEntry>::iterator& iter)
-{
- unsigned dst = currentInstruction[1].u.operand;
- unsigned op1 = currentInstruction[2].u.operand;
- unsigned op2 = currentInstruction[3].u.operand;
- OperandTypes types = OperandTypes::fromInt(currentInstruction[4].u.operand);
-
- if (!supportsFloatingPoint())
- linkSlowCase(iter);
- else {
- if (!types.first().definitelyIsNumber())
- linkSlowCase(iter); // double check
-
- if (!types.second().definitelyIsNumber()) {
- linkSlowCase(iter); // int32 check
- linkSlowCase(iter); // double check
- }
- }
-
- JITStubCall stubCall(this, cti_op_div);
- stubCall.addArgument(op1);
- stubCall.addArgument(op2);
- stubCall.call(dst);
-}
-
-// Mod (%)
-
-/* ------------------------------ BEGIN: OP_MOD ------------------------------ */
-
-#if CPU(X86) || CPU(X86_64)
-
-void JIT::emit_op_mod(Instruction* currentInstruction)
-{
- unsigned dst = currentInstruction[1].u.operand;
- unsigned op1 = currentInstruction[2].u.operand;
- unsigned op2 = currentInstruction[3].u.operand;
-
- if (isOperandConstantImmediateInt(op2) && getConstantOperand(op2).asInt32() != 0) {
- emitLoad(op1, X86Registers::edx, X86Registers::eax);
- move(Imm32(getConstantOperand(op2).asInt32()), X86Registers::ecx);
- addSlowCase(branch32(NotEqual, X86Registers::edx, Imm32(JSValue::Int32Tag)));
- if (getConstantOperand(op2).asInt32() == -1)
- addSlowCase(branch32(Equal, X86Registers::eax, Imm32(0x80000000))); // -2147483648 / -1 => EXC_ARITHMETIC
- } else {
- emitLoad2(op1, X86Registers::edx, X86Registers::eax, op2, X86Registers::ebx, X86Registers::ecx);
- addSlowCase(branch32(NotEqual, X86Registers::edx, Imm32(JSValue::Int32Tag)));
- addSlowCase(branch32(NotEqual, X86Registers::ebx, Imm32(JSValue::Int32Tag)));
-
- addSlowCase(branch32(Equal, X86Registers::eax, Imm32(0x80000000))); // -2147483648 / -1 => EXC_ARITHMETIC
- addSlowCase(branch32(Equal, X86Registers::ecx, Imm32(0))); // divide by 0
- }
-
- move(X86Registers::eax, X86Registers::ebx); // Save dividend payload, in case of 0.
- m_assembler.cdq();
- m_assembler.idivl_r(X86Registers::ecx);
-
- // If the remainder is zero and the dividend is negative, the result is -0.
- Jump storeResult1 = branchTest32(NonZero, X86Registers::edx);
- Jump storeResult2 = branchTest32(Zero, X86Registers::ebx, Imm32(0x80000000)); // not negative
- emitStore(dst, jsNumber(m_globalData, -0.0));
- Jump end = jump();
-
- storeResult1.link(this);
- storeResult2.link(this);
- emitStoreInt32(dst, X86Registers::edx, (op1 == dst || op2 == dst));
- end.link(this);
-}
-
-void JIT::emitSlow_op_mod(Instruction* currentInstruction, Vector<SlowCaseEntry>::iterator& iter)
-{
- unsigned dst = currentInstruction[1].u.operand;
- unsigned op1 = currentInstruction[2].u.operand;
- unsigned op2 = currentInstruction[3].u.operand;
-
- if (isOperandConstantImmediateInt(op2) && getConstantOperand(op2).asInt32() != 0) {
- linkSlowCase(iter); // int32 check
- if (getConstantOperand(op2).asInt32() == -1)
- linkSlowCase(iter); // 0x80000000 check
- } else {
- linkSlowCase(iter); // int32 check
- linkSlowCase(iter); // int32 check
- linkSlowCase(iter); // 0 check
- linkSlowCase(iter); // 0x80000000 check
- }
-
- JITStubCall stubCall(this, cti_op_mod);
- stubCall.addArgument(op1);
- stubCall.addArgument(op2);
- stubCall.call(dst);
-}
-
-#else // CPU(X86) || CPU(X86_64)
-
-void JIT::emit_op_mod(Instruction* currentInstruction)
-{
- unsigned dst = currentInstruction[1].u.operand;
- unsigned op1 = currentInstruction[2].u.operand;
- unsigned op2 = currentInstruction[3].u.operand;
-
- JITStubCall stubCall(this, cti_op_mod);
- stubCall.addArgument(op1);
- stubCall.addArgument(op2);
- stubCall.call(dst);
-}
-
-void JIT::emitSlow_op_mod(Instruction*, Vector<SlowCaseEntry>::iterator&)
-{
-}
-
-#endif // CPU(X86) || CPU(X86_64)
-
-/* ------------------------------ END: OP_MOD ------------------------------ */
-
-#else // USE(JSVALUE32_64)
-
-void JIT::emit_op_lshift(Instruction* currentInstruction)
-{
- unsigned result = currentInstruction[1].u.operand;
- unsigned op1 = currentInstruction[2].u.operand;
- unsigned op2 = currentInstruction[3].u.operand;
-
- emitGetVirtualRegisters(op1, regT0, op2, regT2);
- // FIXME: would we be better using 'emitJumpSlowCaseIfNotImmediateIntegers'? - we *probably* ought to be consistent.
- emitJumpSlowCaseIfNotImmediateInteger(regT0);
- emitJumpSlowCaseIfNotImmediateInteger(regT2);
- emitFastArithImmToInt(regT0);
- emitFastArithImmToInt(regT2);
- lshift32(regT2, regT0);
-#if USE(JSVALUE32)
- addSlowCase(branchAdd32(Overflow, regT0, regT0));
- signExtend32ToPtr(regT0, regT0);
-#endif
- emitFastArithReTagImmediate(regT0, regT0);
- emitPutVirtualRegister(result);
-}
-
-void JIT::emitSlow_op_lshift(Instruction* currentInstruction, Vector<SlowCaseEntry>::iterator& iter)
-{
- unsigned result = currentInstruction[1].u.operand;
- unsigned op1 = currentInstruction[2].u.operand;
- unsigned op2 = currentInstruction[3].u.operand;
-
-#if USE(JSVALUE64)
- UNUSED_PARAM(op1);
- UNUSED_PARAM(op2);
- linkSlowCase(iter);
- linkSlowCase(iter);
-#else
- // If we are limited to 32-bit immediates there is a third slow case, which required the operands to have been reloaded.
- Jump notImm1 = getSlowCase(iter);
- Jump notImm2 = getSlowCase(iter);
- linkSlowCase(iter);
- emitGetVirtualRegisters(op1, regT0, op2, regT2);
- notImm1.link(this);
- notImm2.link(this);
-#endif
- JITStubCall stubCall(this, cti_op_lshift);
- stubCall.addArgument(regT0);
- stubCall.addArgument(regT2);
- stubCall.call(result);
-}
-
-void JIT::emit_op_rshift(Instruction* currentInstruction)
-{
- unsigned result = currentInstruction[1].u.operand;
- unsigned op1 = currentInstruction[2].u.operand;
- unsigned op2 = currentInstruction[3].u.operand;
-
- if (isOperandConstantImmediateInt(op2)) {
- // isOperandConstantImmediateInt(op2) => 1 SlowCase
- emitGetVirtualRegister(op1, regT0);
- emitJumpSlowCaseIfNotImmediateInteger(regT0);
- // Mask with 0x1f as per ecma-262 11.7.2 step 7.
- rshift32(Imm32(getConstantOperandImmediateInt(op2) & 0x1f), regT0);
- } else {
- emitGetVirtualRegisters(op1, regT0, op2, regT2);
- if (supportsFloatingPointTruncate()) {
- Jump lhsIsInt = emitJumpIfImmediateInteger(regT0);
-#if USE(JSVALUE64)
- // supportsFloatingPoint() && USE(JSVALUE64) => 3 SlowCases
- addSlowCase(emitJumpIfNotImmediateNumber(regT0));
- addPtr(tagTypeNumberRegister, regT0);
- movePtrToDouble(regT0, fpRegT0);
- addSlowCase(branchTruncateDoubleToInt32(fpRegT0, regT0));
-#else
- // supportsFloatingPoint() && !USE(JSVALUE64) => 5 SlowCases (of which 1 IfNotJSCell)
- emitJumpSlowCaseIfNotJSCell(regT0, op1);
- addSlowCase(checkStructure(regT0, m_globalData->numberStructure.get()));
- loadDouble(Address(regT0, OBJECT_OFFSETOF(JSNumberCell, m_value)), fpRegT0);
- addSlowCase(branchTruncateDoubleToInt32(fpRegT0, regT0));
- addSlowCase(branchAdd32(Overflow, regT0, regT0));
-#endif
- lhsIsInt.link(this);
- emitJumpSlowCaseIfNotImmediateInteger(regT2);
- } else {
- // !supportsFloatingPoint() => 2 SlowCases
- emitJumpSlowCaseIfNotImmediateInteger(regT0);
- emitJumpSlowCaseIfNotImmediateInteger(regT2);
- }
- emitFastArithImmToInt(regT2);
- rshift32(regT2, regT0);
-#if USE(JSVALUE32)
- signExtend32ToPtr(regT0, regT0);
-#endif
- }
-#if USE(JSVALUE64)
- emitFastArithIntToImmNoCheck(regT0, regT0);
-#else
- orPtr(Imm32(JSImmediate::TagTypeNumber), regT0);
-#endif
- emitPutVirtualRegister(result);
-}
-
-void JIT::emitSlow_op_rshift(Instruction* currentInstruction, Vector<SlowCaseEntry>::iterator& iter)
-{
- unsigned result = currentInstruction[1].u.operand;
- unsigned op1 = currentInstruction[2].u.operand;
- unsigned op2 = currentInstruction[3].u.operand;
-
- JITStubCall stubCall(this, cti_op_rshift);
-
- if (isOperandConstantImmediateInt(op2)) {
- linkSlowCase(iter);
- stubCall.addArgument(regT0);
- stubCall.addArgument(op2, regT2);
- } else {
- if (supportsFloatingPointTruncate()) {
-#if USE(JSVALUE64)
- linkSlowCase(iter);
- linkSlowCase(iter);
- linkSlowCase(iter);
-#else
- linkSlowCaseIfNotJSCell(iter, op1);
- linkSlowCase(iter);
- linkSlowCase(iter);
- linkSlowCase(iter);
- linkSlowCase(iter);
-#endif
- // We're reloading op1 to regT0 as we can no longer guarantee that
- // we have not munged the operand. It may have already been shifted
- // correctly, but it still will not have been tagged.
- stubCall.addArgument(op1, regT0);
- stubCall.addArgument(regT2);
- } else {
- linkSlowCase(iter);
- linkSlowCase(iter);
- stubCall.addArgument(regT0);
- stubCall.addArgument(regT2);
- }
- }
-
- stubCall.call(result);
-}
-
-void JIT::emit_op_jnless(Instruction* currentInstruction)
-{
- unsigned op1 = currentInstruction[1].u.operand;
- unsigned op2 = currentInstruction[2].u.operand;
- unsigned target = currentInstruction[3].u.operand;
-
- // We generate inline code for the following cases in the fast path:
- // - int immediate to constant int immediate
- // - constant int immediate to int immediate
- // - int immediate to int immediate
-
- if (isOperandConstantImmediateInt(op2)) {
- emitGetVirtualRegister(op1, regT0);
- emitJumpSlowCaseIfNotImmediateInteger(regT0);
-#if USE(JSVALUE64)
- int32_t op2imm = getConstantOperandImmediateInt(op2);
-#else
- int32_t op2imm = static_cast<int32_t>(JSImmediate::rawValue(getConstantOperand(op2)));
-#endif
- addJump(branch32(GreaterThanOrEqual, regT0, Imm32(op2imm)), target);
- } else if (isOperandConstantImmediateInt(op1)) {
- emitGetVirtualRegister(op2, regT1);
- emitJumpSlowCaseIfNotImmediateInteger(regT1);
-#if USE(JSVALUE64)
- int32_t op1imm = getConstantOperandImmediateInt(op1);
-#else
- int32_t op1imm = static_cast<int32_t>(JSImmediate::rawValue(getConstantOperand(op1)));
-#endif
- addJump(branch32(LessThanOrEqual, regT1, Imm32(op1imm)), target);
- } else {
- emitGetVirtualRegisters(op1, regT0, op2, regT1);
- emitJumpSlowCaseIfNotImmediateInteger(regT0);
- emitJumpSlowCaseIfNotImmediateInteger(regT1);
-
- addJump(branch32(GreaterThanOrEqual, regT0, regT1), target);
- }
-}
-
-void JIT::emitSlow_op_jnless(Instruction* currentInstruction, Vector<SlowCaseEntry>::iterator& iter)
-{
- unsigned op1 = currentInstruction[1].u.operand;
- unsigned op2 = currentInstruction[2].u.operand;
- unsigned target = currentInstruction[3].u.operand;
-
- // We generate inline code for the following cases in the slow path:
- // - floating-point number to constant int immediate
- // - constant int immediate to floating-point number
- // - floating-point number to floating-point number.
-
- if (isOperandConstantImmediateInt(op2)) {
- linkSlowCase(iter);
-
- if (supportsFloatingPoint()) {
-#if USE(JSVALUE64)
- Jump fail1 = emitJumpIfNotImmediateNumber(regT0);
- addPtr(tagTypeNumberRegister, regT0);
- movePtrToDouble(regT0, fpRegT0);
-#else
- Jump fail1;
- if (!m_codeBlock->isKnownNotImmediate(op1))
- fail1 = emitJumpIfNotJSCell(regT0);
-
- Jump fail2 = checkStructure(regT0, m_globalData->numberStructure.get());
- loadDouble(Address(regT0, OBJECT_OFFSETOF(JSNumberCell, m_value)), fpRegT0);
-#endif
-
- int32_t op2imm = getConstantOperand(op2).asInt32();;
-
- move(Imm32(op2imm), regT1);
- convertInt32ToDouble(regT1, fpRegT1);
-
- emitJumpSlowToHot(branchDouble(DoubleLessThanOrEqualOrUnordered, fpRegT1, fpRegT0), target);
-
- emitJumpSlowToHot(jump(), OPCODE_LENGTH(op_jnless));
-
-#if USE(JSVALUE64)
- fail1.link(this);
-#else
- if (!m_codeBlock->isKnownNotImmediate(op1))
- fail1.link(this);
- fail2.link(this);
-#endif
- }
-
- JITStubCall stubCall(this, cti_op_jless);
- stubCall.addArgument(regT0);
- stubCall.addArgument(op2, regT2);
- stubCall.call();
- emitJumpSlowToHot(branchTest32(Zero, regT0), target);
-
- } else if (isOperandConstantImmediateInt(op1)) {
- linkSlowCase(iter);
-
- if (supportsFloatingPoint()) {
-#if USE(JSVALUE64)
- Jump fail1 = emitJumpIfNotImmediateNumber(regT1);
- addPtr(tagTypeNumberRegister, regT1);
- movePtrToDouble(regT1, fpRegT1);
-#else
- Jump fail1;
- if (!m_codeBlock->isKnownNotImmediate(op2))
- fail1 = emitJumpIfNotJSCell(regT1);
-
- Jump fail2 = checkStructure(regT1, m_globalData->numberStructure.get());
- loadDouble(Address(regT1, OBJECT_OFFSETOF(JSNumberCell, m_value)), fpRegT1);
-#endif
-
- int32_t op1imm = getConstantOperand(op1).asInt32();;
-
- move(Imm32(op1imm), regT0);
- convertInt32ToDouble(regT0, fpRegT0);
-
- emitJumpSlowToHot(branchDouble(DoubleLessThanOrEqualOrUnordered, fpRegT1, fpRegT0), target);
-
- emitJumpSlowToHot(jump(), OPCODE_LENGTH(op_jnless));
-
-#if USE(JSVALUE64)
- fail1.link(this);
-#else
- if (!m_codeBlock->isKnownNotImmediate(op2))
- fail1.link(this);
- fail2.link(this);
-#endif
- }
-
- JITStubCall stubCall(this, cti_op_jless);
- stubCall.addArgument(op1, regT2);
- stubCall.addArgument(regT1);
- stubCall.call();
- emitJumpSlowToHot(branchTest32(Zero, regT0), target);
-
- } else {
- linkSlowCase(iter);
-
- if (supportsFloatingPoint()) {
-#if USE(JSVALUE64)
- Jump fail1 = emitJumpIfNotImmediateNumber(regT0);
- Jump fail2 = emitJumpIfNotImmediateNumber(regT1);
- Jump fail3 = emitJumpIfImmediateInteger(regT1);
- addPtr(tagTypeNumberRegister, regT0);
- addPtr(tagTypeNumberRegister, regT1);
- movePtrToDouble(regT0, fpRegT0);
- movePtrToDouble(regT1, fpRegT1);
-#else
- Jump fail1;
- if (!m_codeBlock->isKnownNotImmediate(op1))
- fail1 = emitJumpIfNotJSCell(regT0);
-
- Jump fail2;
- if (!m_codeBlock->isKnownNotImmediate(op2))
- fail2 = emitJumpIfNotJSCell(regT1);
-
- Jump fail3 = checkStructure(regT0, m_globalData->numberStructure.get());
- Jump fail4 = checkStructure(regT1, m_globalData->numberStructure.get());
- loadDouble(Address(regT0, OBJECT_OFFSETOF(JSNumberCell, m_value)), fpRegT0);
- loadDouble(Address(regT1, OBJECT_OFFSETOF(JSNumberCell, m_value)), fpRegT1);
-#endif
-
- emitJumpSlowToHot(branchDouble(DoubleLessThanOrEqualOrUnordered, fpRegT1, fpRegT0), target);
-
- emitJumpSlowToHot(jump(), OPCODE_LENGTH(op_jnless));
-
-#if USE(JSVALUE64)
- fail1.link(this);
- fail2.link(this);
- fail3.link(this);
-#else
- if (!m_codeBlock->isKnownNotImmediate(op1))
- fail1.link(this);
- if (!m_codeBlock->isKnownNotImmediate(op2))
- fail2.link(this);
- fail3.link(this);
- fail4.link(this);
-#endif
- }
-
- linkSlowCase(iter);
- JITStubCall stubCall(this, cti_op_jless);
- stubCall.addArgument(regT0);
- stubCall.addArgument(regT1);
- stubCall.call();
- emitJumpSlowToHot(branchTest32(Zero, regT0), target);
- }
-}
-
-void JIT::emit_op_jless(Instruction* currentInstruction)
-{
- unsigned op1 = currentInstruction[1].u.operand;
- unsigned op2 = currentInstruction[2].u.operand;
- unsigned target = currentInstruction[3].u.operand;
-
- // We generate inline code for the following cases in the fast path:
- // - int immediate to constant int immediate
- // - constant int immediate to int immediate
- // - int immediate to int immediate
-
- if (isOperandConstantImmediateInt(op2)) {
- emitGetVirtualRegister(op1, regT0);
- emitJumpSlowCaseIfNotImmediateInteger(regT0);
-#if USE(JSVALUE64)
- int32_t op2imm = getConstantOperandImmediateInt(op2);
-#else
- int32_t op2imm = static_cast<int32_t>(JSImmediate::rawValue(getConstantOperand(op2)));
-#endif
- addJump(branch32(LessThan, regT0, Imm32(op2imm)), target);
- } else if (isOperandConstantImmediateInt(op1)) {
- emitGetVirtualRegister(op2, regT1);
- emitJumpSlowCaseIfNotImmediateInteger(regT1);
-#if USE(JSVALUE64)
- int32_t op1imm = getConstantOperandImmediateInt(op1);
-#else
- int32_t op1imm = static_cast<int32_t>(JSImmediate::rawValue(getConstantOperand(op1)));
-#endif
- addJump(branch32(GreaterThan, regT1, Imm32(op1imm)), target);
- } else {
- emitGetVirtualRegisters(op1, regT0, op2, regT1);
- emitJumpSlowCaseIfNotImmediateInteger(regT0);
- emitJumpSlowCaseIfNotImmediateInteger(regT1);
-
- addJump(branch32(LessThan, regT0, regT1), target);
- }
-}
-
-void JIT::emitSlow_op_jless(Instruction* currentInstruction, Vector<SlowCaseEntry>::iterator& iter)
-{
- unsigned op1 = currentInstruction[1].u.operand;
- unsigned op2 = currentInstruction[2].u.operand;
- unsigned target = currentInstruction[3].u.operand;
-
- // We generate inline code for the following cases in the slow path:
- // - floating-point number to constant int immediate
- // - constant int immediate to floating-point number
- // - floating-point number to floating-point number.
-
- if (isOperandConstantImmediateInt(op2)) {
- linkSlowCase(iter);
-
- if (supportsFloatingPoint()) {
-#if USE(JSVALUE64)
- Jump fail1 = emitJumpIfNotImmediateNumber(regT0);
- addPtr(tagTypeNumberRegister, regT0);
- movePtrToDouble(regT0, fpRegT0);
-#else
- Jump fail1;
- if (!m_codeBlock->isKnownNotImmediate(op1))
- fail1 = emitJumpIfNotJSCell(regT0);
-
- Jump fail2 = checkStructure(regT0, m_globalData->numberStructure.get());
- loadDouble(Address(regT0, OBJECT_OFFSETOF(JSNumberCell, m_value)), fpRegT0);
-#endif
-
- int32_t op2imm = getConstantOperand(op2).asInt32();
-
- move(Imm32(op2imm), regT1);
- convertInt32ToDouble(regT1, fpRegT1);
-
- emitJumpSlowToHot(branchDouble(DoubleLessThan, fpRegT0, fpRegT1), target);
-
- emitJumpSlowToHot(jump(), OPCODE_LENGTH(op_jnless));
-
-#if USE(JSVALUE64)
- fail1.link(this);
-#else
- if (!m_codeBlock->isKnownNotImmediate(op1))
- fail1.link(this);
- fail2.link(this);
-#endif
- }
-
- JITStubCall stubCall(this, cti_op_jless);
- stubCall.addArgument(regT0);
- stubCall.addArgument(op2, regT2);
- stubCall.call();
- emitJumpSlowToHot(branchTest32(NonZero, regT0), target);
-
- } else if (isOperandConstantImmediateInt(op1)) {
- linkSlowCase(iter);
-
- if (supportsFloatingPoint()) {
-#if USE(JSVALUE64)
- Jump fail1 = emitJumpIfNotImmediateNumber(regT1);
- addPtr(tagTypeNumberRegister, regT1);
- movePtrToDouble(regT1, fpRegT1);
-#else
- Jump fail1;
- if (!m_codeBlock->isKnownNotImmediate(op2))
- fail1 = emitJumpIfNotJSCell(regT1);
-
- Jump fail2 = checkStructure(regT1, m_globalData->numberStructure.get());
- loadDouble(Address(regT1, OBJECT_OFFSETOF(JSNumberCell, m_value)), fpRegT1);
-#endif
-
- int32_t op1imm = getConstantOperand(op1).asInt32();
-
- move(Imm32(op1imm), regT0);
- convertInt32ToDouble(regT0, fpRegT0);
-
- emitJumpSlowToHot(branchDouble(DoubleLessThan, fpRegT0, fpRegT1), target);
-
- emitJumpSlowToHot(jump(), OPCODE_LENGTH(op_jnless));
-
-#if USE(JSVALUE64)
- fail1.link(this);
-#else
- if (!m_codeBlock->isKnownNotImmediate(op2))
- fail1.link(this);
- fail2.link(this);
-#endif
- }
-
- JITStubCall stubCall(this, cti_op_jless);
- stubCall.addArgument(op1, regT2);
- stubCall.addArgument(regT1);
- stubCall.call();
- emitJumpSlowToHot(branchTest32(NonZero, regT0), target);
-
- } else {
- linkSlowCase(iter);
-
- if (supportsFloatingPoint()) {
-#if USE(JSVALUE64)
- Jump fail1 = emitJumpIfNotImmediateNumber(regT0);
- Jump fail2 = emitJumpIfNotImmediateNumber(regT1);
- Jump fail3 = emitJumpIfImmediateInteger(regT1);
- addPtr(tagTypeNumberRegister, regT0);
- addPtr(tagTypeNumberRegister, regT1);
- movePtrToDouble(regT0, fpRegT0);
- movePtrToDouble(regT1, fpRegT1);
-#else
- Jump fail1;
- if (!m_codeBlock->isKnownNotImmediate(op1))
- fail1 = emitJumpIfNotJSCell(regT0);
-
- Jump fail2;
- if (!m_codeBlock->isKnownNotImmediate(op2))
- fail2 = emitJumpIfNotJSCell(regT1);
-
- Jump fail3 = checkStructure(regT0, m_globalData->numberStructure.get());
- Jump fail4 = checkStructure(regT1, m_globalData->numberStructure.get());
- loadDouble(Address(regT0, OBJECT_OFFSETOF(JSNumberCell, m_value)), fpRegT0);
- loadDouble(Address(regT1, OBJECT_OFFSETOF(JSNumberCell, m_value)), fpRegT1);
-#endif
-
- emitJumpSlowToHot(branchDouble(DoubleLessThan, fpRegT0, fpRegT1), target);
-
- emitJumpSlowToHot(jump(), OPCODE_LENGTH(op_jnless));
-
-#if USE(JSVALUE64)
- fail1.link(this);
- fail2.link(this);
- fail3.link(this);
-#else
- if (!m_codeBlock->isKnownNotImmediate(op1))
- fail1.link(this);
- if (!m_codeBlock->isKnownNotImmediate(op2))
- fail2.link(this);
- fail3.link(this);
- fail4.link(this);
-#endif
- }
-
- linkSlowCase(iter);
- JITStubCall stubCall(this, cti_op_jless);
- stubCall.addArgument(regT0);
- stubCall.addArgument(regT1);
- stubCall.call();
- emitJumpSlowToHot(branchTest32(NonZero, regT0), target);
- }
-}
-
-void JIT::emit_op_jnlesseq(Instruction* currentInstruction)
-{
- unsigned op1 = currentInstruction[1].u.operand;
- unsigned op2 = currentInstruction[2].u.operand;
- unsigned target = currentInstruction[3].u.operand;
-
- // We generate inline code for the following cases in the fast path:
- // - int immediate to constant int immediate
- // - constant int immediate to int immediate
- // - int immediate to int immediate
-
projects / apple / javascriptcore.git / blobdiff