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Shaded fat Jar for pkl-config-java, a Java config library based on the Pkl config language.
/*
* Copyright (c) 2013, 2024, 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
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package org.pkl.thirdparty.truffle.api.impl;
import java.lang.reflect.Field;
import java.util.Arrays;
import org.pkl.thirdparty.truffle.api.CompilerAsserts;
import org.pkl.thirdparty.truffle.api.CompilerDirectives;
import org.pkl.thirdparty.truffle.api.frame.FrameDescriptor;
import org.pkl.thirdparty.truffle.api.frame.FrameSlotKind;
import org.pkl.thirdparty.truffle.api.frame.FrameSlotTypeException;
import org.pkl.thirdparty.truffle.api.frame.MaterializedFrame;
import org.pkl.thirdparty.truffle.api.frame.VirtualFrame;
import sun.misc.Unsafe;
/**
* More efficient implementation of the Truffle frame that has no safety checks for frame accesses
* and therefore is much faster. Should not be used during debugging as potential misuses of the
* frame object would show up very late and would be hard to identify.
*
* For host compilation all final instance fields of this case are treated as immutable in the
* Compiler IR. This allows frame array reads to move out of loops even if there are side-effects in
* them. In order to guarantee this, the frame must not escape a reference of this in
* the constructor to any other call.
*/
public final class FrameWithoutBoxing implements VirtualFrame, MaterializedFrame {
private static final String UNEXPECTED_STATIC_WRITE = "Unexpected static write of non-static frame slot";
private static final String UNEXPECTED_NON_STATIC_READ = "Unexpected non-static read of static frame slot";
private static final String UNEXPECTED_NON_STATIC_WRITE = "Unexpected non-static write of static frame slot";
private static final boolean ASSERTIONS_ENABLED;
private final FrameDescriptor descriptor;
private final Object[] arguments;
private final Object[] indexedLocals;
private final long[] indexedPrimitiveLocals;
private final byte[] indexedTags;
private Object[] auxiliarySlots;
private static final Object OBJECT_LOCATION = new Object();
private static final Object PRIMITIVE_LOCATION = new Object();
private static final long INT_MASK = 0xFFFFFFFFL;
/*
* Changing these constants implies changes in NewFrameNode.java as well:
*/
public static final byte OBJECT_TAG = 0;
public static final byte LONG_TAG = 1;
public static final byte INT_TAG = 2;
public static final byte DOUBLE_TAG = 3;
public static final byte FLOAT_TAG = 4;
public static final byte BOOLEAN_TAG = 5;
public static final byte BYTE_TAG = 6;
public static final byte ILLEGAL_TAG = 7;
public static final byte STATIC_TAG = 8;
private static final byte STATIC_OBJECT_TAG = STATIC_TAG | OBJECT_TAG;
private static final byte STATIC_LONG_TAG = STATIC_TAG | LONG_TAG;
private static final byte STATIC_INT_TAG = STATIC_TAG | INT_TAG;
private static final byte STATIC_DOUBLE_TAG = STATIC_TAG | DOUBLE_TAG;
private static final byte STATIC_FLOAT_TAG = STATIC_TAG | FLOAT_TAG;
private static final byte STATIC_BOOLEAN_TAG = STATIC_TAG | BOOLEAN_TAG;
private static final byte STATIC_BYTE_TAG = STATIC_TAG | BYTE_TAG;
private static final byte STATIC_ILLEGAL_TAG = STATIC_TAG | ILLEGAL_TAG;
private static final Object[] EMPTY_OBJECT_ARRAY = {};
private static final long[] EMPTY_LONG_ARRAY = {};
private static final byte[] EMPTY_BYTE_ARRAY = {};
private static final Unsafe UNSAFE = initUnsafe();
static {
assert OBJECT_TAG == FrameSlotKind.Object.tag;
assert ILLEGAL_TAG == FrameSlotKind.Illegal.tag;
assert LONG_TAG == FrameSlotKind.Long.tag;
assert INT_TAG == FrameSlotKind.Int.tag;
assert DOUBLE_TAG == FrameSlotKind.Double.tag;
assert FLOAT_TAG == FrameSlotKind.Float.tag;
assert BOOLEAN_TAG == FrameSlotKind.Boolean.tag;
assert BYTE_TAG == FrameSlotKind.Byte.tag;
assert STATIC_TAG == FrameSlotKind.Static.tag;
ASSERTIONS_ENABLED = areAssertionsEnabled();
}
@SuppressWarnings("all")
private static boolean areAssertionsEnabled() {
boolean enabled = false;
assert enabled = true;
return enabled;
}
private static Unsafe initUnsafe() {
try {
// Fast path when we are trusted.
return Unsafe.getUnsafe();
} catch (SecurityException se) {
// Slow path when we are not trusted.
try {
Field theUnsafe = Unsafe.class.getDeclaredField("theUnsafe");
theUnsafe.setAccessible(true);
return (Unsafe) theUnsafe.get(Unsafe.class);
} catch (Exception e) {
throw new RuntimeException("exception while trying to get Unsafe", e);
}
}
}
public FrameWithoutBoxing(FrameDescriptor descriptor, Object[] arguments) {
/*
* Important note: Make sure this frame reference does not escape to any other method in
* this constructor, otherwise the immutable invariant for frame final fields may not hold.
* This may lead to very hard to debug bugs.
*/
final int indexedSize = descriptor.getNumberOfSlots();
final int auxiliarySize = descriptor.getNumberOfAuxiliarySlots();
Object defaultValue = descriptor.getDefaultValue();
final Accessor.FrameSupport frameSupport = DefaultRuntimeAccessor.FRAME;
final Object[] indexedLocalsArray;
final long[] indexedPrimitiveLocalsArray;
final byte[] indexedTagsArray;
final Object[] auxiliarySlotsArray;
if (indexedSize == 0) {
indexedLocalsArray = EMPTY_OBJECT_ARRAY;
indexedPrimitiveLocalsArray = EMPTY_LONG_ARRAY;
indexedTagsArray = EMPTY_BYTE_ARRAY;
} else {
indexedLocalsArray = new Object[indexedSize];
if (defaultValue != null) {
Arrays.fill(indexedLocalsArray, defaultValue);
}
indexedPrimitiveLocalsArray = new long[indexedSize];
indexedTagsArray = new byte[indexedSize];
if (frameSupport.usesAllStaticMode(descriptor)) {
Arrays.fill(indexedTagsArray, STATIC_TAG);
} else if (frameSupport.usesMixedStaticMode(descriptor)) {
for (int slot = 0; slot < indexedTagsArray.length; slot++) {
if (descriptor.getSlotKind(slot) == FrameSlotKind.Static) {
indexedTagsArray[slot] = STATIC_TAG;
}
}
}
}
if (auxiliarySize == 0) {
auxiliarySlotsArray = EMPTY_OBJECT_ARRAY;
} else {
auxiliarySlotsArray = new Object[auxiliarySize];
}
this.descriptor = descriptor;
this.arguments = arguments;
this.indexedLocals = indexedLocalsArray;
this.indexedPrimitiveLocals = indexedPrimitiveLocalsArray;
this.indexedTags = indexedTagsArray;
this.auxiliarySlots = auxiliarySlotsArray;
}
@Override
public Object[] getArguments() {
return unsafeCast(arguments, Object[].class, true, true, true);
}
@Override
public FrameWithoutBoxing materialize() {
ImplAccessor.frameSupportAccessor().markMaterializeCalled(descriptor);
return this;
}
private static long extend(int value) {
return value & INT_MASK;
}
@Override
public FrameDescriptor getFrameDescriptor() {
return unsafeCast(descriptor, FrameDescriptor.class, true, true, false);
}
private static FrameSlotTypeException frameSlotTypeException() throws FrameSlotTypeException {
CompilerAsserts.neverPartOfCompilation();
throw new FrameSlotTypeException();
}
private static long getPrimitiveOffset(int slotIndex) {
return Unsafe.ARRAY_LONG_BASE_OFFSET + slotIndex * (long) Unsafe.ARRAY_LONG_INDEX_SCALE;
}
@Override
public byte getTag(int slotIndex) {
try {
final byte tag = getIndexedTags()[slotIndex];
return tag < STATIC_TAG ? tag : STATIC_TAG;
} catch (ArrayIndexOutOfBoundsException e) {
throw CompilerDirectives.shouldNotReachHere("invalid indexed slot", e);
}
}
@SuppressWarnings({"unchecked", "unused"})
private static T unsafeCast(Object value, Class type, boolean condition, boolean nonNull, boolean exact) {
return (T) value;
}
@SuppressWarnings("unused")
private static long unsafeGetLong(Object receiver, long offset, boolean condition, Object locationIdentity) {
return UNSAFE.getLong(receiver, offset);
}
@SuppressWarnings("unused")
private static Object unsafeGetObject(Object receiver, long offset, boolean condition, Object locationIdentity) {
return UNSAFE.getObject(receiver, offset);
}
@SuppressWarnings("unused")
private static void unsafePutLong(Object receiver, long offset, long value, Object locationIdentity) {
UNSAFE.putLong(receiver, offset, value);
}
@SuppressWarnings("unused")
private static void unsafePutObject(Object receiver, long offset, Object value, Object locationIdentity) {
UNSAFE.putObject(receiver, offset, value);
}
@Override
public Object getValue(int slot) {
byte tag = getTag(slot);
assert (indexedTags[slot] & STATIC_TAG) == 0 : UNEXPECTED_NON_STATIC_READ;
switch (tag) {
case BOOLEAN_TAG:
return getBoolean(slot);
case BYTE_TAG:
return getByte(slot);
case INT_TAG:
return getInt(slot);
case DOUBLE_TAG:
return getDouble(slot);
case LONG_TAG:
return getLong(slot);
case FLOAT_TAG:
return getFloat(slot);
case OBJECT_TAG:
return getObject(slot);
default:
throw CompilerDirectives.shouldNotReachHere();
}
}
private Object[] getIndexedLocals() {
return unsafeCast(indexedLocals, Object[].class, true, true, true);
}
private long[] getIndexedPrimitiveLocals() {
return unsafeCast(this.indexedPrimitiveLocals, long[].class, true, true, true);
}
private byte[] getIndexedTags() {
return unsafeCast(indexedTags, byte[].class, true, true, true);
}
@Override
public Object getObject(int slot) throws FrameSlotTypeException {
boolean condition = verifyIndexedGet(slot, OBJECT_TAG);
return unsafeGetObject(getIndexedLocals(), Unsafe.ARRAY_OBJECT_BASE_OFFSET + slot * (long) Unsafe.ARRAY_OBJECT_INDEX_SCALE, condition, OBJECT_LOCATION);
}
@Override
public void setObject(int slot, Object value) {
verifyIndexedSet(slot, OBJECT_TAG);
unsafePutObject(getIndexedLocals(), Unsafe.ARRAY_OBJECT_BASE_OFFSET + slot * (long) Unsafe.ARRAY_OBJECT_INDEX_SCALE, value, OBJECT_LOCATION);
}
@Override
public byte getByte(int slot) throws FrameSlotTypeException {
boolean condition = verifyIndexedGet(slot, BYTE_TAG);
return (byte) (int) unsafeGetLong(getIndexedPrimitiveLocals(), getPrimitiveOffset(slot), condition, PRIMITIVE_LOCATION);
}
@Override
public void setByte(int slot, byte value) {
verifyIndexedSet(slot, BYTE_TAG);
unsafePutLong(getIndexedPrimitiveLocals(), getPrimitiveOffset(slot), extend(value), PRIMITIVE_LOCATION);
}
@Override
public boolean getBoolean(int slot) throws FrameSlotTypeException {
boolean condition = verifyIndexedGet(slot, BOOLEAN_TAG);
return (int) unsafeGetLong(getIndexedPrimitiveLocals(), getPrimitiveOffset(slot), condition, PRIMITIVE_LOCATION) != 0;
}
@Override
public void setBoolean(int slot, boolean value) {
verifyIndexedSet(slot, BOOLEAN_TAG);
unsafePutLong(getIndexedPrimitiveLocals(), getPrimitiveOffset(slot), value ? 1L : 0L, PRIMITIVE_LOCATION);
}
@Override
public float getFloat(int slot) throws FrameSlotTypeException {
boolean condition = verifyIndexedGet(slot, FLOAT_TAG);
return Float.intBitsToFloat((int) unsafeGetLong(getIndexedPrimitiveLocals(), getPrimitiveOffset(slot), condition, PRIMITIVE_LOCATION));
}
@Override
public void setFloat(int slot, float value) {
verifyIndexedSet(slot, FLOAT_TAG);
unsafePutLong(getIndexedPrimitiveLocals(), getPrimitiveOffset(slot), extend(Float.floatToRawIntBits(value)), PRIMITIVE_LOCATION);
}
@Override
public long getLong(int slot) throws FrameSlotTypeException {
boolean condition = verifyIndexedGet(slot, LONG_TAG);
return unsafeGetLong(getIndexedPrimitiveLocals(), getPrimitiveOffset(slot), condition, PRIMITIVE_LOCATION);
}
@Override
public void setLong(int slot, long value) {
verifyIndexedSet(slot, LONG_TAG);
unsafePutLong(getIndexedPrimitiveLocals(), getPrimitiveOffset(slot), value, PRIMITIVE_LOCATION);
}
@Override
public int getInt(int slot) throws FrameSlotTypeException {
boolean condition = verifyIndexedGet(slot, INT_TAG);
return (int) unsafeGetLong(getIndexedPrimitiveLocals(), getPrimitiveOffset(slot), condition, PRIMITIVE_LOCATION);
}
@Override
public void setInt(int slot, int value) {
verifyIndexedSet(slot, INT_TAG);
unsafePutLong(getIndexedPrimitiveLocals(), getPrimitiveOffset(slot), extend(value), PRIMITIVE_LOCATION);
}
@Override
public double getDouble(int slot) throws FrameSlotTypeException {
boolean condition = verifyIndexedGet(slot, DOUBLE_TAG);
return Double.longBitsToDouble(unsafeGetLong(getIndexedPrimitiveLocals(), getPrimitiveOffset(slot), condition, PRIMITIVE_LOCATION));
}
@Override
public void setDouble(int slot, double value) {
verifyIndexedSet(slot, DOUBLE_TAG);
unsafePutLong(getIndexedPrimitiveLocals(), getPrimitiveOffset(slot), Double.doubleToRawLongBits(value), PRIMITIVE_LOCATION);
}
@Override
public void copy(int srcSlot, int destSlot) {
byte tag = getIndexedTagChecked(srcSlot);
Object value = unsafeGetObject(getIndexedLocals(), Unsafe.ARRAY_OBJECT_BASE_OFFSET + srcSlot * (long) Unsafe.ARRAY_OBJECT_INDEX_SCALE, true, OBJECT_LOCATION);
verifyIndexedSet(destSlot, tag);
unsafePutObject(getIndexedLocals(), Unsafe.ARRAY_OBJECT_BASE_OFFSET + destSlot * (long) Unsafe.ARRAY_OBJECT_INDEX_SCALE, value, OBJECT_LOCATION);
long primitiveValue = unsafeGetLong(getIndexedPrimitiveLocals(), getPrimitiveOffset(srcSlot), true, PRIMITIVE_LOCATION);
unsafePutLong(getIndexedPrimitiveLocals(), getPrimitiveOffset(destSlot), primitiveValue, PRIMITIVE_LOCATION);
}
@Override
public void swap(int first, int second) {
byte firstTag = getIndexedTagChecked(first);
Object firstValue = unsafeGetObject(getIndexedLocals(), Unsafe.ARRAY_OBJECT_BASE_OFFSET + first * (long) Unsafe.ARRAY_OBJECT_INDEX_SCALE, true, OBJECT_LOCATION);
long firstPrimitiveValue = unsafeGetLong(getIndexedPrimitiveLocals(), getPrimitiveOffset(first), true, PRIMITIVE_LOCATION);
byte secondTag = getIndexedTagChecked(second);
Object secondValue = unsafeGetObject(getIndexedLocals(), Unsafe.ARRAY_OBJECT_BASE_OFFSET + second * (long) Unsafe.ARRAY_OBJECT_INDEX_SCALE, true, OBJECT_LOCATION);
long secondPrimitiveValue = unsafeGetLong(getIndexedPrimitiveLocals(), getPrimitiveOffset(second), true, PRIMITIVE_LOCATION);
verifyIndexedSet(first, secondTag);
verifyIndexedSet(second, firstTag);
unsafePutObject(getIndexedLocals(), Unsafe.ARRAY_OBJECT_BASE_OFFSET + first * (long) Unsafe.ARRAY_OBJECT_INDEX_SCALE, secondValue, OBJECT_LOCATION);
unsafePutLong(getIndexedPrimitiveLocals(), getPrimitiveOffset(first), secondPrimitiveValue, PRIMITIVE_LOCATION);
unsafePutObject(getIndexedLocals(), Unsafe.ARRAY_OBJECT_BASE_OFFSET + second * (long) Unsafe.ARRAY_OBJECT_INDEX_SCALE, firstValue, OBJECT_LOCATION);
unsafePutLong(getIndexedPrimitiveLocals(), getPrimitiveOffset(second), firstPrimitiveValue, PRIMITIVE_LOCATION);
}
private void verifyIndexedSet(int slot, byte tag) {
assert (indexedTags[slot] & STATIC_TAG) == 0 : UNEXPECTED_NON_STATIC_WRITE;
// this may raise an AIOOBE
getIndexedTags()[slot] = tag;
}
private boolean verifyIndexedGet(int slot, byte expectedTag) throws FrameSlotTypeException {
byte actualTag = getIndexedTagChecked(slot);
boolean condition = actualTag == expectedTag;
if (!condition) {
CompilerDirectives.transferToInterpreterAndInvalidate();
throw frameSlotTypeException();
}
return condition;
}
private byte getIndexedTagChecked(int slot) {
// this may raise an AIOOBE
byte tag = getIndexedTags()[slot];
assert (tag & STATIC_TAG) == 0 : UNEXPECTED_NON_STATIC_READ;
return tag;
}
@Override
public boolean isObject(int slot) {
return getTag(slot) == OBJECT_TAG;
}
@Override
public boolean isByte(int slot) {
return getTag(slot) == BYTE_TAG;
}
@Override
public boolean isBoolean(int slot) {
return getTag(slot) == BOOLEAN_TAG;
}
@Override
public boolean isInt(int slot) {
return getTag(slot) == INT_TAG;
}
@Override
public boolean isLong(int slot) {
return getTag(slot) == LONG_TAG;
}
@Override
public boolean isFloat(int slot) {
return getTag(slot) == FLOAT_TAG;
}
@Override
public boolean isDouble(int slot) {
return getTag(slot) == DOUBLE_TAG;
}
@Override
public boolean isStatic(int slot) {
return getTag(slot) == STATIC_TAG;
}
@Override
public void clear(int slot) {
verifyIndexedSet(slot, ILLEGAL_TAG);
unsafePutObject(getIndexedLocals(), Unsafe.ARRAY_OBJECT_BASE_OFFSET + slot * (long) Unsafe.ARRAY_OBJECT_INDEX_SCALE, null, OBJECT_LOCATION);
if (CompilerDirectives.inCompiledCode()) {
unsafePutLong(getIndexedPrimitiveLocals(), getPrimitiveOffset(slot), 0L, PRIMITIVE_LOCATION);
}
}
@Override
public void setAuxiliarySlot(int slot, Object value) {
if (auxiliarySlots.length <= slot) {
CompilerDirectives.transferToInterpreterAndInvalidate();
auxiliarySlots = Arrays.copyOf(auxiliarySlots, descriptor.getNumberOfAuxiliarySlots());
}
auxiliarySlots[slot] = value;
}
@Override
public Object getAuxiliarySlot(int slot) {
return slot < auxiliarySlots.length ? auxiliarySlots[slot] : null;
}
@Override
public Object getObjectStatic(int slot) {
assert indexedTags[slot] == STATIC_OBJECT_TAG : "Unexpected read of static object value";
return indexedLocals[slot];
}
@Override
public void setObjectStatic(int slot, Object value) {
assert (indexedTags[slot] & STATIC_TAG) != 0 : UNEXPECTED_STATIC_WRITE;
// We use this check instead of the assert keyword to update the tags in PE'd code.
if (ASSERTIONS_ENABLED) {
indexedTags[slot] = STATIC_OBJECT_TAG;
}
indexedLocals[slot] = value;
}
@Override
public byte getByteStatic(int slot) {
assert indexedTags[slot] == STATIC_BYTE_TAG : "Unexpected read of static byte value";
return (byte) (int) indexedPrimitiveLocals[slot];
}
@Override
public void setByteStatic(int slot, byte value) {
assert (indexedTags[slot] & STATIC_TAG) != 0 : UNEXPECTED_STATIC_WRITE;
// We use this check instead of the assert keyword to update the tags in PE'd code.
if (ASSERTIONS_ENABLED) {
indexedTags[slot] = STATIC_BYTE_TAG;
}
indexedPrimitiveLocals[slot] = extend(value);
}
@Override
public boolean getBooleanStatic(int slot) {
assert indexedTags[slot] == STATIC_BOOLEAN_TAG : "Unexpected read of static boolean value";
return (int) indexedPrimitiveLocals[slot] != 0;
}
@Override
public void setBooleanStatic(int slot, boolean value) {
assert (indexedTags[slot] & STATIC_TAG) != 0 : UNEXPECTED_STATIC_WRITE;
// We use this check instead of the assert keyword to update the tags in PE'd code.
if (ASSERTIONS_ENABLED) {
indexedTags[slot] = STATIC_BOOLEAN_TAG;
}
indexedPrimitiveLocals[slot] = value ? 1L : 0L;
}
@Override
public int getIntStatic(int slot) {
assert indexedTags[slot] == STATIC_INT_TAG : "Unexpected read of static int value";
return (int) indexedPrimitiveLocals[slot];
}
@Override
public void setIntStatic(int slot, int value) {
assert (indexedTags[slot] & STATIC_TAG) != 0 : UNEXPECTED_STATIC_WRITE;
// We use this check instead of the assert keyword to update the tags in PE'd code.
if (ASSERTIONS_ENABLED) {
indexedTags[slot] = STATIC_INT_TAG;
}
indexedPrimitiveLocals[slot] = extend(value);
}
@Override
public long getLongStatic(int slot) {
assert indexedTags[slot] == STATIC_LONG_TAG : "Unexpected read of static long value";
return indexedPrimitiveLocals[slot];
}
@Override
public void setLongStatic(int slot, long value) {
assert (indexedTags[slot] & STATIC_TAG) != 0 : UNEXPECTED_STATIC_WRITE;
// We use this check instead of the assert keyword to update the tags in PE'd code.
if (ASSERTIONS_ENABLED) {
indexedTags[slot] = STATIC_LONG_TAG;
}
indexedPrimitiveLocals[slot] = value;
}
@Override
public float getFloatStatic(int slot) {
assert indexedTags[slot] == STATIC_FLOAT_TAG : "Unexpected read of static float value";
return Float.intBitsToFloat((int) indexedPrimitiveLocals[slot]);
}
@Override
public void setFloatStatic(int slot, float value) {
assert (indexedTags[slot] & STATIC_TAG) != 0 : UNEXPECTED_STATIC_WRITE;
// We use this check instead of the assert keyword to update the tags in PE'd code.
if (ASSERTIONS_ENABLED) {
indexedTags[slot] = STATIC_FLOAT_TAG;
}
indexedPrimitiveLocals[slot] = extend(Float.floatToRawIntBits(value));
}
@Override
public double getDoubleStatic(int slot) {
assert indexedTags[slot] == STATIC_DOUBLE_TAG : "Unexpected read of static double value";
return Double.longBitsToDouble(indexedPrimitiveLocals[slot]);
}
@Override
public void setDoubleStatic(int slot, double value) {
assert (indexedTags[slot] & STATIC_TAG) != 0 : UNEXPECTED_STATIC_WRITE;
// We use this check instead of the assert keyword to update the tags in PE'd code.
if (ASSERTIONS_ENABLED) {
indexedTags[slot] = STATIC_DOUBLE_TAG;
}
indexedPrimitiveLocals[slot] = Double.doubleToRawLongBits(value);
}
@Override
public void copyPrimitiveStatic(int srcSlot, int destSlot) {
assert indexedTags[srcSlot] > STATIC_TAG && (indexedTags[destSlot] & STATIC_TAG) != 0 : "Unexpected copy of static primitive value ";
// We use this check instead of the assert keyword to update the tags in PE'd code.
if (ASSERTIONS_ENABLED) {
indexedTags[destSlot] = indexedTags[srcSlot];
}
indexedPrimitiveLocals[destSlot] = indexedPrimitiveLocals[srcSlot];
}
@Override
public void copyObjectStatic(int srcSlot, int destSlot) {
assert (indexedTags[srcSlot] == STATIC_OBJECT_TAG || indexedTags[srcSlot] == STATIC_ILLEGAL_TAG) && (indexedTags[destSlot] & STATIC_TAG) != 0 : "Unexpected copy of static object value";
// We use this check instead of the assert keyword to update the tags in PE'd code.
if (ASSERTIONS_ENABLED) {
indexedTags[destSlot] = indexedTags[srcSlot];
}
indexedLocals[destSlot] = indexedLocals[srcSlot];
}
@Override
public void copyStatic(int srcSlot, int destSlot) {
assert indexedTags[srcSlot] >= STATIC_TAG && indexedTags[destSlot] >= STATIC_TAG : "Unexpected copy of static value";
// We use this check instead of the assert keyword to update the tags in PE'd code.
if (ASSERTIONS_ENABLED) {
indexedTags[destSlot] = indexedTags[srcSlot];
}
indexedLocals[destSlot] = indexedLocals[srcSlot];
indexedPrimitiveLocals[destSlot] = indexedPrimitiveLocals[srcSlot];
}
@Override
public void swapPrimitiveStatic(int first, int second) {
assert indexedTags[first] > STATIC_TAG && indexedTags[second] > STATIC_TAG : "Unexpected swap of static primitive value";
// We use this check instead of the assert keyword to update the tags in PE'd code.
if (ASSERTIONS_ENABLED) {
final byte swapTag = indexedTags[first];
indexedTags[first] = indexedTags[second];
indexedTags[second] = swapTag;
}
final long firstValue = indexedPrimitiveLocals[first];
final long secondValue = indexedPrimitiveLocals[second];
indexedPrimitiveLocals[first] = secondValue;
indexedPrimitiveLocals[second] = firstValue;
}
@Override
public void swapObjectStatic(int first, int second) {
assert (indexedTags[first] == STATIC_OBJECT_TAG || indexedTags[first] == STATIC_ILLEGAL_TAG) &&
(indexedTags[second] == STATIC_OBJECT_TAG || indexedTags[second] == STATIC_ILLEGAL_TAG) : "Unexpected swap of static object value";
// We use this check instead of the assert keyword to update the tags in PE'd code.
if (ASSERTIONS_ENABLED) {
final byte swapTag = indexedTags[first];
indexedTags[first] = indexedTags[second];
indexedTags[second] = swapTag;
}
final Object firstValue = indexedLocals[first];
final Object secondValue = indexedLocals[second];
indexedLocals[first] = secondValue;
indexedLocals[second] = firstValue;
}
@Override
public void swapStatic(int first, int second) {
assert indexedTags[first] >= STATIC_TAG && indexedTags[second] >= STATIC_TAG : "Unexpected swap of static value";
// We use this check instead of the assert keyword to update the tags in PE'd code.
if (ASSERTIONS_ENABLED) {
final byte swapTag = indexedTags[first];
indexedTags[first] = indexedTags[second];
indexedTags[second] = swapTag;
}
final Object firstValue = indexedLocals[first];
final Object secondValue = indexedLocals[second];
final long firstPrimitiveValue = indexedPrimitiveLocals[first];
final long secondPrimitiveValue = indexedPrimitiveLocals[second];
indexedLocals[first] = secondValue;
indexedLocals[second] = firstValue;
indexedPrimitiveLocals[first] = secondPrimitiveValue;
indexedPrimitiveLocals[second] = firstPrimitiveValue;
}
@Override
public void clearPrimitiveStatic(int slot) {
assert indexedTags[slot] > STATIC_TAG : "Unexpected clear of static primitive value";
// We use this check instead of the assert keyword to update the tags in PE'd code.
if (ASSERTIONS_ENABLED) {
indexedTags[slot] = STATIC_ILLEGAL_TAG;
}
if (CompilerDirectives.inCompiledCode()) {
// Avoids keeping track of cleared frame slots in FrameStates
indexedPrimitiveLocals[slot] = 0L;
}
}
@Override
public void clearObjectStatic(int slot) {
assert indexedTags[slot] == STATIC_OBJECT_TAG || indexedTags[slot] == STATIC_ILLEGAL_TAG : "Unexpected clear of static object value";
// We use this check instead of the assert keyword to update the tags in PE'd code.
if (ASSERTIONS_ENABLED) {
indexedTags[slot] = STATIC_ILLEGAL_TAG;
}
indexedLocals[slot] = null;
}
@Override
public void clearStatic(int slot) {
assert indexedTags[slot] >= STATIC_TAG : "Unexpected clear of static value";
// We use this check instead of the assert keyword to update the tags in PE'd code.
if (ASSERTIONS_ENABLED) {
indexedTags[slot] = STATIC_ILLEGAL_TAG;
}
if (CompilerDirectives.inCompiledCode()) {
// Avoid keeping track of cleared frame slots in FrameStates
indexedPrimitiveLocals[slot] = 0L;
}
indexedLocals[slot] = null;
}
/**
* Marker method to be called before performing a frame transfer.
*/
void startOSRTransfer() {
}
/**
* This method is used to transfer a static slot from a source frame to a target frame before or
* after OSR. This method must exclusively be used inside
* {@code BytecodeOSRMetadata#transferIndexedFrameSlot}. It is necessary to support static
* assertions.
*
* @param target The target frame (The frame descriptor of this and the target frame must match)
* @param slot The slot that should be transferred
*/
void transferOSRStaticSlot(FrameWithoutBoxing target, int slot) {
if (ASSERTIONS_ENABLED) {
final byte tag = indexedTags[slot];
indexedTags[slot] = STATIC_OBJECT_TAG;
target.setObjectStatic(slot, getObjectStatic(slot));
indexedTags[slot] = STATIC_LONG_TAG;
target.setLongStatic(slot, getLongStatic(slot));
indexedTags[slot] = tag;
target.setStaticSlotTag(slot, tag);
} else {
target.setObjectStatic(slot, getObjectStatic(slot));
target.setLongStatic(slot, getLongStatic(slot));
}
}
private void setStaticSlotTag(int slot, byte tag) {
indexedTags[slot] = tag;
}
}
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