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Unsafe code for AtomicReference

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Volker Berlin 2023-01-24 18:57:04 +01:00
parent 3f5cb135e5
commit 588c9563f6
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GPG Key ID: 988423EF815BE4CB
2 changed files with 15 additions and 3 deletions
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13
src/de/inetsoftware/jwebassembly/module/UnsafeManager.java
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@ -1,5 +1,5 @@
/*
* Copyright 2022 Volker Berlin (i-net software)
* Copyright 2023 Volker Berlin (i-net software)
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
@ -24,6 +24,7 @@ import de.inetsoftware.jwebassembly.WasmException;
import de.inetsoftware.jwebassembly.module.StackInspector.StackValue;
import de.inetsoftware.jwebassembly.module.WasmInstruction.Type;
import de.inetsoftware.jwebassembly.wasm.AnyType;
import de.inetsoftware.jwebassembly.wasm.ValueType;
import de.inetsoftware.jwebassembly.wasm.VariableOperator;
/**
@ -152,6 +153,7 @@ class UnsafeManager {
case "sun/misc/Unsafe.putOrderedLong(Ljava/lang/Object;JJ)V":
case "sun/misc/Unsafe.getObjectVolatile(Ljava/lang/Object;J)Ljava/lang/Object;":
case "sun/misc/Unsafe.putOrderedObject(Ljava/lang/Object;JLjava/lang/Object;)V":
case "sun/misc/Unsafe.getAndSetObject(Ljava/lang/Object;JLjava/lang/Object;)Ljava/lang/Object;":
case "jdk/internal/misc/Unsafe.getAndAddInt(Ljava/lang/Object;JI)I":
case "jdk/internal/misc/Unsafe.getAndSetInt(Ljava/lang/Object;JI)I":
case "jdk/internal/misc/Unsafe.putIntRelease(Ljava/lang/Object;JI)V":
@ -432,10 +434,15 @@ class UnsafeManager {
switch( name.methodName ) {
case "compareAndSwapInt":
case "compareAndSwapLong":
case "compareAndSwapObject":
AnyType type = paramTypes[3];
if( type.isRefType() ) {
type = ValueType.ref;
}
return "local.get 0" // THIS
+ " struct.get " + state.typeName + ' ' + state.fieldName //
+ " local.get 2 " // expected
+ paramTypes[3] + ".eq" //
+ type + ".eq" //
+ " if" //
+ " local.get 0" // THIS
+ " local.get 3" // update
@ -460,6 +467,7 @@ class UnsafeManager {
case "getAndSetInt":
case "getAndSetLong":
case "getAndSetObject":
return "local.get 0" // THIS
+ " struct.get " + state.typeName + ' ' + state.fieldName //
+ " local.get 0" // THIS
@ -469,6 +477,7 @@ class UnsafeManager {
case "putOrderedInt":
case "putOrderedLong":
case "putOrderedObject":
return "local.get 0" // THIS
+ " local.get 2" // x
+ " struct.set " + state.typeName + ' ' + state.fieldName;

5
src/de/inetsoftware/jwebassembly/watparser/WatParser.java
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@ -1,5 +1,5 @@
/*
Copyright 2018 - 2022 Volker Berlin (i-net software)
Copyright 2018 - 2023 Volker Berlin (i-net software)
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
@ -227,6 +227,9 @@ public class WatParser extends WasmCodeBuilder {
case "ref.is_null":
addNumericInstruction( NumericOperator.ifnull, ValueType.i32, javaCodePos, lineNumber );
break;
case "ref.eq":
addNumericInstruction( NumericOperator.ref_eq, ValueType.i32, javaCodePos, lineNumber );
break;
case "table.get":
addTableInstruction( true, getInt( tokens, ++i), javaCodePos, lineNumber );
break;