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backend: Remove casts for nothing-returning builtin functions

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This commit is contained in:
Ilya Matveev
2017-02-15 17:41:52 +03:00
committed by ilmat192
parent 75d09e6674
commit ed2bc1a425
1 changed files with 10 additions and 4 deletions
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backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/lower/BuiltinOperatorLowering.kt
+10 -4
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@@ -6,15 +6,13 @@ import org.jetbrains.kotlin.backend.konan.descriptors.getKonanInternalFunctions
import org.jetbrains.kotlin.backend.konan.ir.isNullConst
import org.jetbrains.kotlin.backend.konan.util.atMostOne
import org.jetbrains.kotlin.ir.descriptors.IrBuiltinOperatorDescriptor
import org.jetbrains.kotlin.ir.expressions.IrBody
import org.jetbrains.kotlin.ir.expressions.IrCall
import org.jetbrains.kotlin.ir.expressions.IrExpression
import org.jetbrains.kotlin.ir.expressions.IrTry
import org.jetbrains.kotlin.ir.expressions.*
import org.jetbrains.kotlin.ir.expressions.impl.IrBinaryPrimitiveImpl
import org.jetbrains.kotlin.ir.expressions.impl.IrCallImpl
import org.jetbrains.kotlin.ir.expressions.impl.IrTryImpl
import org.jetbrains.kotlin.ir.visitors.IrElementTransformerVoid
import org.jetbrains.kotlin.ir.visitors.transformChildrenVoid
import org.jetbrains.kotlin.types.typeUtil.isNothing
import org.jetbrains.kotlin.types.typeUtil.isSubtypeOf
/**
@@ -45,6 +43,14 @@ private class BuiltinOperatorTransformer(val context: Context) : IrElementTransf
return expression
}
override fun visitTypeOperator(expression: IrTypeOperatorCall): IrExpression {
expression.transformChildrenVoid(this)
if (expression.argument.type.isNothing()) {
return expression.argument
}
return expression
}
private fun transformBuiltinOperator(expression: IrCall): IrExpression {
val descriptor = expression.descriptor