Ilmir Usmanov
cc06798e2c
Unlike previously, this optimisation works on every callee return type. Tail-calls inside unit functions can be either INVOKE... ARETURN or INVOKE POP GETSTATIC kotlin/Unit.INSTANCE ARETURN The first pattern is already covered. The second one is a bit tricky, since we cannot just assume than the function is tail-call, we also need to check whether the callee returned COROUTINE_SUSPENDED marker. Thus, resulting bytecode of function's 'epilogue' look like DUP INVOKESTATIC getCOROUTINE_SUSPENDED IF_ACMPNE LN ARETURN LN: POP #KT-28938 Fixed
107 lines
2.3 KiB
Kotlin
Vendored
107 lines
2.3 KiB
Kotlin
Vendored
// IGNORE_BACKEND: JVM_IR
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// FILE: test.kt
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// COMMON_COROUTINES_TEST
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// WITH_RUNTIME
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// WITH_COROUTINES
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// NO_CHECK_LAMBDA_INLINING
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// TARGET_BACKEND: JVM
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suspend inline fun test1(c: () -> Unit) {
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c()
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}
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suspend inline fun test2(c: suspend () -> Unit) {
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c()
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}
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suspend inline fun test3(crossinline c: suspend() -> Unit) {
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c()
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}
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suspend inline fun test4(crossinline c: suspend() -> Unit) {
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val l : suspend () -> Unit = { c() }
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l()
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}
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interface SuspendRunnable {
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suspend fun run()
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}
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suspend inline fun test5(crossinline c: suspend() -> Unit) {
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val sr = object : SuspendRunnable {
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override suspend fun run() {
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c()
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}
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}
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sr.run()
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}
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// FILE: box.kt
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// COMMON_COROUTINES_TEST
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import COROUTINES_PACKAGE.*
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import COROUTINES_PACKAGE.intrinsics.*
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import helpers.*
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import COROUTINES_PACKAGE.jvm.internal.*
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fun builder(c: suspend () -> Unit) {
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c.startCoroutine(EmptyContinuation)
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}
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var continuationChanged = true
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var savedContinuation: Continuation<Unit>? = null
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suspend inline fun saveContinuation() = suspendCoroutineUninterceptedOrReturn<Unit> { c ->
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savedContinuation = c
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Unit
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}
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suspend inline fun checkContinuation(continuation: Continuation<Unit>) = suspendCoroutineUninterceptedOrReturn<Unit> { c ->
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continuationChanged = (continuation !== c)
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Unit
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}
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fun box() : String {
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builder {
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saveContinuation()
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test1 {
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checkContinuation(savedContinuation!!)
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}
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}
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if (continuationChanged) return "FAIL 1"
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continuationChanged = true
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builder {
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saveContinuation()
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test2 {
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checkContinuation(savedContinuation!!)
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}
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}
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if (continuationChanged) return "FAIL 2"
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continuationChanged = true
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builder {
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saveContinuation()
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test3 {
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checkContinuation(savedContinuation!!)
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}
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}
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if (continuationChanged) return "FAIL 3"
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continuationChanged = false
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builder {
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saveContinuation()
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test4 {
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checkContinuation(savedContinuation!!)
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}
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}
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if (!continuationChanged) return "FAIL 4"
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continuationChanged = false
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builder {
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saveContinuation()
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test5 {
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checkContinuation(savedContinuation!!)
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}
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}
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if (continuationChanged) return "FAIL 5"
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return "OK"
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}
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