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[devirtualization] Fixed bug with handling empty IrBlock

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This commit is contained in:
Igor Chevdar
2020-03-06 14:38:38 +03:00
parent 6dbdb3addc
commit 2ca7123ce1
1 changed files with 23 additions and 19 deletions
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backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/optimizations/Devirtualization.kt
+4
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@@ -1729,6 +1729,9 @@ internal object Devirtualization {
is IrBlock -> { is IrBlock -> {
val statements = expression.statements val statements = expression.statements
if (statements.isEmpty())
PossiblyFoldedExpression(expression, false)
else {
val lastStatement = statements.last() as IrExpression val lastStatement = statements.last() as IrExpression
val foldedLastStatement = fold(lastStatement, coercion, cast, transformRecursively) val foldedLastStatement = fold(lastStatement, coercion, cast, transformRecursively)
statements.transform { statements.transform {
@@ -1750,6 +1753,7 @@ internal object Devirtualization {
} }
PossiblyFoldedExpression(transformedBlock, foldedLastStatement.folded) PossiblyFoldedExpression(transformedBlock, foldedLastStatement.folded)
} }
}
is IrWhen -> { is IrWhen -> {
val foldedBranches = expression.branches.map { fold(it.result, coercion, cast, transformRecursively) } val foldedBranches = expression.branches.map { fold(it.result, coercion, cast, transformRecursively) }