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Specialize WasmFunctionNode to fixed memory impl using libraries
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wasm/src/org.graalvm.wasm/src/org/graalvm/wasm/nodes/WasmFixedMemoryImplFunctionNode.java
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| /* | ||
| * Copyright (c) 2025, Oracle and/or its affiliates. All rights reserved. | ||
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | ||
| * | ||
| * The Universal Permissive License (UPL), Version 1.0 | ||
| * | ||
| * Subject to the condition set forth below, permission is hereby granted to any | ||
| * person obtaining a copy of this software, associated documentation and/or | ||
| * data (collectively the "Software"), free of charge and under any and all | ||
| * copyright rights in the Software, and any and all patent rights owned or | ||
| * freely licensable by each licensor hereunder covering either (i) the | ||
| * unmodified Software as contributed to or provided by such licensor, or (ii) | ||
| * the Larger Works (as defined below), to deal in both | ||
| * | ||
| * (a) the Software, and | ||
| * | ||
| * (b) any piece of software and/or hardware listed in the lrgrwrks.txt file if | ||
| * one is included with the Software each a "Larger Work" to which the Software | ||
| * is contributed by such licensors), | ||
| * | ||
| * without restriction, including without limitation the rights to copy, create | ||
| * derivative works of, display, perform, and distribute the Software and make, | ||
| * use, sell, offer for sale, import, export, have made, and have sold the | ||
| * Software and the Larger Work(s), and to sublicense the foregoing rights on | ||
| * either these or other terms. | ||
| * | ||
| * This license is subject to the following condition: | ||
| * | ||
| * The above copyright notice and either this complete permission notice or at a | ||
| * minimum a reference to the UPL must be included in all copies or substantial | ||
| * portions of the Software. | ||
| * | ||
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | ||
| * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | ||
| * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | ||
| * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | ||
| * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | ||
| * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE | ||
| * SOFTWARE. | ||
| */ | ||
| package org.graalvm.wasm.nodes; | ||
|
|
||
| import com.oracle.truffle.api.dsl.Cached; | ||
| import com.oracle.truffle.api.dsl.Idempotent; | ||
| import com.oracle.truffle.api.dsl.NeverDefault; | ||
| import com.oracle.truffle.api.dsl.Specialization; | ||
| import com.oracle.truffle.api.frame.VirtualFrame; | ||
| import com.oracle.truffle.api.library.CachedLibrary; | ||
| import com.oracle.truffle.api.nodes.Node; | ||
| import org.graalvm.wasm.WasmCodeEntry; | ||
| import org.graalvm.wasm.WasmContext; | ||
| import org.graalvm.wasm.WasmInstance; | ||
| import org.graalvm.wasm.WasmModule; | ||
| import org.graalvm.wasm.memory.WasmMemoryLibrary; | ||
|
|
||
| /** | ||
| * Dispatches to specialized instances of {@link WasmInstrumentableFunctionNode}, ensuring that each | ||
| * {@link WasmInstrumentableFunctionNode} sees only one implementation of {@link WasmMemoryLibrary} | ||
| * for each memory, meaning that all memory accesses are monomorphic in the compiled | ||
| * {@link WasmFunctionNode}. If a cache limit is exceeded (too many combinations of memory | ||
| * implementations), a {@link WasmInstrumentableFunctionNode} using dispatched libraries for each | ||
| * memory will be used instead. | ||
| */ | ||
| public abstract class WasmFixedMemoryImplFunctionNode extends Node { | ||
|
|
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| private final WasmModule module; | ||
| private final WasmCodeEntry codeEntry; | ||
| private final int bytecodeStartOffset; | ||
| private final int bytecodeEndOffset; | ||
| private final Node[] callNodes; | ||
|
|
||
| protected WasmFixedMemoryImplFunctionNode(WasmModule module, WasmCodeEntry codeEntry, int bytecodeStartOffset, int bytecodeEndOffset, Node[] callNodes) { | ||
| this.module = module; | ||
| this.codeEntry = codeEntry; | ||
| this.bytecodeStartOffset = bytecodeStartOffset; | ||
| this.bytecodeEndOffset = bytecodeEndOffset; | ||
| this.callNodes = callNodes; | ||
| } | ||
|
|
||
| public static WasmFixedMemoryImplFunctionNode create(WasmModule module, WasmCodeEntry codeEntry, int bytecodeStartOffset, int bytecodeEndOffset, Node[] callNodes) { | ||
| return WasmFixedMemoryImplFunctionNodeGen.create(module, codeEntry, bytecodeStartOffset, bytecodeEndOffset, callNodes); | ||
| } | ||
|
|
||
| @Specialization(guards = {"memoryCount() == 1"}, limit = "3") | ||
| protected void doFixedMemoryImpl(VirtualFrame frame, WasmContext context, WasmInstance instance, | ||
| @CachedLibrary(value = "instance.memory(0)") @SuppressWarnings("unused") WasmMemoryLibrary cachedMemoryLib0, | ||
| @Cached("createMemoryLibs1(cachedMemoryLib0)") @SuppressWarnings("unused") WasmMemoryLibrary[] cachedMemoryLibs, | ||
| @Cached("createFunctionNode(cachedMemoryLibs)") WasmInstrumentableFunctionNode specializedFunctionNode) { | ||
| specializedFunctionNode.execute(frame, context, instance); | ||
| } | ||
|
|
||
| @Specialization(replaces = "doFixedMemoryImpl") | ||
| protected void doDispatched(VirtualFrame frame, WasmContext context, WasmInstance instance, | ||
| @Cached("createDispatchedFunctionNode()") WasmInstrumentableFunctionNode dispatchedFunctionNode) { | ||
| dispatchedFunctionNode.execute(frame, context, instance); | ||
| } | ||
|
|
||
| @NeverDefault | ||
| protected WasmMemoryLibrary[] createMemoryLibs1(WasmMemoryLibrary memoryLibs) { | ||
| return new WasmMemoryLibrary[]{memoryLibs}; | ||
| } | ||
|
|
||
| @Idempotent | ||
| protected int memoryCount() { | ||
| return module.memoryCount(); | ||
| } | ||
|
|
||
| @NeverDefault | ||
| protected WasmInstrumentableFunctionNode createFunctionNode(WasmMemoryLibrary[] memoryLibs) { | ||
| return new WasmInstrumentableFunctionNode(module, codeEntry, bytecodeStartOffset, bytecodeEndOffset, callNodes, memoryLibs); | ||
| } | ||
|
|
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| @NeverDefault | ||
| protected WasmInstrumentableFunctionNode createDispatchedFunctionNode() { | ||
| WasmMemoryLibrary[] memoryLibs = new WasmMemoryLibrary[module.memoryCount()]; | ||
| for (int memoryIndex = 0; memoryIndex < module.memoryCount(); memoryIndex++) { | ||
| memoryLibs[memoryIndex] = insert(WasmMemoryLibrary.getFactory().createDispatched(3)); | ||
| } | ||
| return createFunctionNode(memoryLibs); | ||
| } | ||
|
|
||
| public abstract void execute(VirtualFrame frame, WasmContext context, WasmInstance instance); | ||
| } |
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