org.jetbrains.kotlin.backend.jvm.intrinsics.BinaryOp.kt Maven / Gradle / Ivy
/*
* Copyright 2010-2016 JetBrains s.r.o.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.jetbrains.kotlin.backend.jvm.intrinsics
import org.jetbrains.kotlin.backend.jvm.JvmBackendContext
import org.jetbrains.kotlin.codegen.AsmUtil.numberFunctionOperandType
import org.jetbrains.kotlin.codegen.StackValue
import org.jetbrains.kotlin.ir.expressions.IrFunctionAccessExpression
import org.jetbrains.kotlin.ir.types.isChar
import org.jetbrains.kotlin.ir.util.defaultType
import org.jetbrains.kotlin.ir.util.parentAsClass
import org.jetbrains.kotlin.resolve.jvm.jvmSignature.JvmMethodSignature
import org.jetbrains.org.objectweb.asm.Opcodes.*
import org.jetbrains.org.objectweb.asm.Type
class BinaryOp(private val opcode: Int) : IntrinsicMethod() {
private fun shift(): Boolean =
opcode == ISHL || opcode == ISHR || opcode == IUSHR
override fun toCallable(
expression: IrFunctionAccessExpression,
signature: JvmMethodSignature,
context: JvmBackendContext
): IrIntrinsicFunction {
val returnType = signature.returnType
val intermediateResultType = numberFunctionOperandType(returnType)
val argTypes = if (!expression.symbol.owner.parentAsClass.defaultType.isChar()) {
listOf(intermediateResultType, if (shift()) Type.INT_TYPE else intermediateResultType)
} else {
listOf(Type.CHAR_TYPE, signature.valueParameters[0].asmType)
}
return IrIntrinsicFunction.create(expression, signature, context, argTypes) {
it.visitInsn(returnType.getOpcode(opcode))
StackValue.coerce(intermediateResultType, returnType, it)
}
}
}