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Iaroslav 2020-06-14 00:18:40 +07:00
parent e91f6470d3
commit af410dde70
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5 changed files with 42 additions and 19 deletions
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5
kmath-ast/src/jvmMain/kotlin/scientifik/kmath/asm/Builders.kt → kmath-ast/src/jvmMain/kotlin/scientifik/kmath/asm/AsmBuilders.kt
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@ -18,9 +18,10 @@ internal fun buildName(expression: AsmExpression<*>, collision: Int = 0): String
return buildName(expression, collision + 1)
}
inline fun <reified T> AsmExpression<T>.compile(algebra: Algebra<T>): Expression<T> {
@PublishedApi
internal inline fun <reified T> AsmExpression<T>.compile(algebra: Algebra<T>): Expression<T> {
val ctx = AsmGenerationContext(T::class.java, algebra, buildName(this))
invoke(ctx)
compile(ctx)
return ctx.generate()
}

43
kmath-ast/src/jvmMain/kotlin/scientifik/kmath/asm/AsmExpressions.kt
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@ -1,14 +1,31 @@
package scientifik.kmath.asm
import scientifik.kmath.asm.internal.hasSpecific
import scientifik.kmath.asm.internal.optimize
import scientifik.kmath.asm.internal.tryInvokeSpecific
import scientifik.kmath.expressions.Expression
import scientifik.kmath.expressions.ExpressionAlgebra
import scientifik.kmath.operations.*
import kotlin.reflect.full.memberFunctions
import kotlin.reflect.jvm.jvmName
/**
* A function declaration that could be compiled to [AsmGenerationContext].
*
* @param T the type the stored function returns.
*/
interface AsmExpression<T> {
/**
* Tries to evaluate this function without its variables. This method is intended for optimization.
*
* @return `null` if the function depends on its variables, the value if the function is a constant.
*/
fun tryEvaluate(): T? = null
fun invoke(gen: AsmGenerationContext<T>)
/**
* Compiles this declaration.
*
* @param gen the target [AsmGenerationContext].
*/
fun compile(gen: AsmGenerationContext<T>)
}
internal class AsmUnaryOperation<T>(private val context: Algebra<T>, private val name: String, expr: AsmExpression<T>) :
@ -16,13 +33,13 @@ internal class AsmUnaryOperation<T>(private val context: Algebra<T>, private val
private val expr: AsmExpression<T> = expr.optimize()
override fun tryEvaluate(): T? = context { unaryOperation(name, expr.tryEvaluate() ?: return@context null) }
override fun invoke(gen: AsmGenerationContext<T>) {
override fun compile(gen: AsmGenerationContext<T>) {
gen.visitLoadAlgebra()
if (!hasSpecific(context, name, 1))
gen.visitStringConstant(name)
expr.invoke(gen)
expr.compile(gen)
if (gen.tryInvokeSpecific(context, name, 1))
return
@ -54,14 +71,14 @@ internal class AsmBinaryOperation<T>(
)
}
override fun invoke(gen: AsmGenerationContext<T>) {
override fun compile(gen: AsmGenerationContext<T>) {
gen.visitLoadAlgebra()
if (!hasSpecific(context, name, 2))
gen.visitStringConstant(name)
first.invoke(gen)
second.invoke(gen)
first.compile(gen)
second.compile(gen)
if (gen.tryInvokeSpecific(context, name, 2))
return
@ -79,13 +96,13 @@ internal class AsmBinaryOperation<T>(
internal class AsmVariableExpression<T>(private val name: String, private val default: T? = null) :
AsmExpression<T> {
override fun invoke(gen: AsmGenerationContext<T>): Unit = gen.visitLoadFromVariables(name, default)
override fun compile(gen: AsmGenerationContext<T>): Unit = gen.visitLoadFromVariables(name, default)
}
internal class AsmConstantExpression<T>(private val value: T) :
AsmExpression<T> {
override fun tryEvaluate(): T = value
override fun invoke(gen: AsmGenerationContext<T>): Unit = gen.visitLoadFromConstants(value)
override fun compile(gen: AsmGenerationContext<T>): Unit = gen.visitLoadFromConstants(value)
}
internal class AsmConstProductExpression<T>(
@ -98,10 +115,10 @@ internal class AsmConstProductExpression<T>(
override fun tryEvaluate(): T? = context { (expr.tryEvaluate() ?: return@context null) * const }
override fun invoke(gen: AsmGenerationContext<T>) {
override fun compile(gen: AsmGenerationContext<T>) {
gen.visitLoadAlgebra()
gen.visitNumberConstant(const)
expr.invoke(gen)
expr.compile(gen)
gen.visitAlgebraOperation(
owner = AsmGenerationContext.SPACE_OPERATIONS_CLASS,
@ -117,7 +134,7 @@ internal class AsmNumberExpression<T>(private val context: NumericAlgebra<T>, pr
AsmExpression<T> {
override fun tryEvaluate(): T? = context.number(value)
override fun invoke(gen: AsmGenerationContext<T>): Unit = gen.visitNumberConstant(value)
override fun compile(gen: AsmGenerationContext<T>): Unit = gen.visitNumberConstant(value)
}
internal abstract class FunctionalCompiledExpression<T> internal constructor(

5
kmath-ast/src/jvmMain/kotlin/scientifik/kmath/asm/AsmGenerationContext.kt
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@ -5,6 +5,9 @@ import org.objectweb.asm.Label
import org.objectweb.asm.MethodVisitor
import org.objectweb.asm.Opcodes
import scientifik.kmath.asm.AsmGenerationContext.ClassLoader
import scientifik.kmath.asm.internal.visitLdcOrDConstInsn
import scientifik.kmath.asm.internal.visitLdcOrFConstInsn
import scientifik.kmath.asm.internal.visitLdcOrIConstInsn
import scientifik.kmath.operations.Algebra
/**
@ -16,7 +19,7 @@ import scientifik.kmath.operations.Algebra
* @param algebra the algebra the applied AsmExpressions use.
* @param className the unique class name of new loaded class.
*/
class AsmGenerationContext<T>(
class AsmGenerationContext<T> @PublishedApi internal constructor(
private val classOfT: Class<*>,
private val algebra: Algebra<T>,
private val className: String

2
kmath-ast/src/jvmMain/kotlin/scientifik/kmath/asm/MethodVisitors.kt → kmath-ast/src/jvmMain/kotlin/scientifik/kmath/asm/internal/MethodVisitors.kt
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@ -1,4 +1,4 @@
package scientifik.kmath.asm
package scientifik.kmath.asm.internal
import org.objectweb.asm.MethodVisitor
import org.objectweb.asm.Opcodes.*

6
kmath-ast/src/jvmMain/kotlin/scientifik/kmath/asm/Optimization.kt → kmath-ast/src/jvmMain/kotlin/scientifik/kmath/asm/internal/Optimization.kt
View File

@ -1,8 +1,10 @@
package scientifik.kmath.asm
package scientifik.kmath.asm.internal
import org.objectweb.asm.Opcodes
import scientifik.kmath.asm.AsmConstantExpression
import scientifik.kmath.asm.AsmExpression
import scientifik.kmath.asm.AsmGenerationContext
import scientifik.kmath.operations.Algebra
import scientifik.kmath.operations.ByteRing
private val methodNameAdapters: Map<String, String> = mapOf("+" to "add", "*" to "multiply", "/" to "divide")