[K/N] Implement isExperimentalMM intrinsic

kotlin-native/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/llvm/IntrinsicGenerator.kt

@@ -2,6 +2,7 @@ package org.jetbrains.kotlin.backend.konan.llvm
 
 import kotlinx.cinterop.cValuesOf
 import llvm.*
+import org.jetbrains.kotlin.backend.konan.MemoryModel
 import org.jetbrains.kotlin.backend.konan.RuntimeNames
 import org.jetbrains.kotlin.backend.konan.descriptors.getAnnotationStringValue
 import org.jetbrains.kotlin.backend.konan.descriptors.isTypedIntrinsic
@@ -63,6 +64,7 @@ internal enum class IntrinsicType {
     IDENTITY,
     IMMUTABLE_BLOB,
     INIT_INSTANCE,
+    IS_EXPERIMENTAL_MM,
     // Enums
     ENUM_VALUES,
     ENUM_VALUE_OF,
@@ -237,6 +239,7 @@ internal class IntrinsicGenerator(private val environment: IntrinsicGeneratorEnv
                 IntrinsicType.IDENTITY -> emitIdentity(args)
                 IntrinsicType.GET_CONTINUATION -> emitGetContinuation()
                 IntrinsicType.INTEROP_MEMORY_COPY -> emitMemoryCopy(callSite, args)
+                IntrinsicType.IS_EXPERIMENTAL_MM -> emitIsExperimentalMM()
                 IntrinsicType.RETURN_IF_SUSPENDED,
                 IntrinsicType.INTEROP_BITS_TO_FLOAT,
                 IntrinsicType.INTEROP_BITS_TO_DOUBLE,
@@ -269,6 +272,9 @@ internal class IntrinsicGenerator(private val environment: IntrinsicGeneratorEnv
     private fun FunctionGenerationContext.emitIdentity(args: List<LLVMValueRef>): LLVMValueRef =
             args.single()
 
+    private fun FunctionGenerationContext.emitIsExperimentalMM(): LLVMValueRef =
+            Int1(if (context.memoryModel == MemoryModel.EXPERIMENTAL) 1 else 0).llvm
+
     private fun FunctionGenerationContext.emitListOfInternal(callSite: IrCall, args: List<LLVMValueRef>): LLVMValueRef {
         val varargExpression = callSite.getValueArgument(0) as IrVararg
         val vararg = args.single()

kotlin-native/backend.native/tests/build.gradle

@@ -4296,6 +4296,11 @@ task interop_sourceCodeStruct(type: KonanLocalTest) {
     source = "codegen/intrinsics/interop_sourceCodeStruct.kt"
 }
 
+standaloneTest("isExperimentalMM") {
+    source = "codegen/intrinsics/isExperimentalMM.kt"
+    flags = [ "-tr" ]
+}
+
 interopTest("interop_cppClass") {
     disabled = (project.testTarget == 'wasm32') // No interop for wasm yet.
     source = "interop/cpp/cppClass.kt"

kotlin-native/backend.native/tests/codegen/intrinsics/isExperimentalMM.kt

@@ -0,0 +1,17 @@
+/*
+ * Copyright 2010-2021 JetBrains s.r.o. and Kotlin Programming Language contributors.
+ * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
+ */
+
+import kotlin.test.*
+import kotlin.native.Platform
+
+@Test
+@OptIn(kotlin.ExperimentalStdlibApi::class)
+fun testIsExperimentalMM() {
+    if (isExperimentalMM()) {
+        assertEquals(Platform.memoryModel, MemoryModel.EXPERIMENTAL)
+    } else {
+        assertNotEquals(Platform.memoryModel, MemoryModel.EXPERIMENTAL)
+    }
+}