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JVM IR: optimize type equality check on IR types

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`AbstractTypeChecker.isCommonDenotableType` calls a few functions which
check if the type is flexible, which is not cheap in case of JVM IR, see
`asFlexibleType`.

 #KT-66281
This commit is contained in:
Alexander Udalov
2024-03-04 23:28:21 +01:00
committed by Space Team
parent 45b74d0313
commit d430673320
3 changed files with 12 additions and 2 deletions
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compiler/ir/backend.jvm/src/org/jetbrains/kotlin/backend/jvm/JvmIrTypeSystemContext.kt
+8 -1
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@@ -7,15 +7,16 @@ package org.jetbrains.kotlin.backend.jvm
import org.jetbrains.kotlin.backend.jvm.ir.IrJvmFlexibleType
import org.jetbrains.kotlin.backend.jvm.ir.asJvmFlexibleType
import org.jetbrains.kotlin.backend.jvm.ir.isWithFlexibleMutability
import org.jetbrains.kotlin.backend.jvm.ir.isWithFlexibleNullability
import org.jetbrains.kotlin.ir.IrBuiltIns
import org.jetbrains.kotlin.ir.types.IrSimpleType
import org.jetbrains.kotlin.ir.types.IrType
import org.jetbrains.kotlin.ir.types.IrTypeSystemContext
import org.jetbrains.kotlin.ir.types.isMarkedNullable as irIsMarkedNullable
import org.jetbrains.kotlin.types.model.FlexibleTypeMarker
import org.jetbrains.kotlin.types.model.KotlinTypeMarker
import org.jetbrains.kotlin.types.model.SimpleTypeMarker
import org.jetbrains.kotlin.ir.types.isMarkedNullable as irIsMarkedNullable
class JvmIrTypeSystemContext(override val irBuiltIns: IrBuiltIns) : IrTypeSystemContext {
override fun KotlinTypeMarker.asFlexibleType(): FlexibleTypeMarker? =
@@ -37,4 +38,10 @@ class JvmIrTypeSystemContext(override val irBuiltIns: IrBuiltIns) : IrTypeSystem
override fun KotlinTypeMarker.isMarkedNullable(): Boolean =
this is IrSimpleType && !isWithFlexibleNullability() && irIsMarkedNullable()
override fun KotlinTypeMarker.isDynamic(): Boolean =
false
override fun KotlinTypeMarker.isFlexibleWithDifferentTypeConstructors(): Boolean =
(this as IrType).isWithFlexibleMutability()
}