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[K/N][codegen] Escape analysis: handled nulls more optimally

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Helps with https://youtrack.jetbrains.com/issue/KT-44148
This commit is contained in:
Igor Chevdar
2021-05-19 14:52:32 +05:00
parent 426ac1281d
commit 29584edcdd
1 changed files with 3 additions and 2 deletions
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kotlin-native/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/optimizations/EscapeAnalysis.kt
+3 -2
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@@ -182,13 +182,14 @@ internal object EscapeAnalysis {
fun computeDepths(node: DataFlowIR.Node, depth: Int) {
if (node is DataFlowIR.Node.Scope)
node.nodes.forEach { computeDepths(it, depth + 1) }
else
else if (node != DataFlowIR.Node.Null)
nodesRoles[node] = NodeInfo(depth)
}
computeDepths(body.rootScope, Depths.ROOT_SCOPE - 1)
fun assignRole(node: DataFlowIR.Node, role: Role, infoEntry: RoleInfoEntry?) {
nodesRoles[node]!!.add(role, infoEntry)
if (node != DataFlowIR.Node.Null && infoEntry?.node != DataFlowIR.Node.Null)
nodesRoles[node]!!.add(role, infoEntry)
}
body.returns.values.forEach { assignRole(it.node, Role.RETURN_VALUE, null) }