+ 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);
projects / apple / javascriptcore.git / blobdiff