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* Copyright (c) 2016, Oracle and/or its affiliates.
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* permitted provided that the following conditions are met:
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* 1. Redistributions of source code must retain the above copyright notice, this list of
* conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright notice, this list of
* conditions and the following disclaimer in the documentation and/or other materials provided
* with the distribution.
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* 3. Neither the name of the copyright holder nor the names of its contributors may be used to
* endorse or promote products derived from this software without specific prior written
* permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS
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package com.oracle.truffle.llvm.nodes.cast;
import com.oracle.truffle.api.CompilerDirectives;
import com.oracle.truffle.api.dsl.NodeChild;
import com.oracle.truffle.api.dsl.Specialization;
import com.oracle.truffle.api.interop.ForeignAccess;
import com.oracle.truffle.api.interop.Message;
import com.oracle.truffle.api.interop.TruffleObject;
import com.oracle.truffle.api.interop.UnsupportedMessageException;
import com.oracle.truffle.api.nodes.Node;
import com.oracle.truffle.llvm.runtime.LLVMBoxedPrimitive;
import com.oracle.truffle.llvm.runtime.interop.ToLLVMNode;
import com.oracle.truffle.llvm.runtime.nodes.api.LLVMExpressionNode;
@NodeChild(value = "fromNode", type = LLVMExpressionNode.class)
public abstract class LLVMToI1Node extends LLVMExpressionNode {
@Specialization
public boolean executeI1(byte from) {
return (from & 1) != 0;
}
@Specialization
public boolean executeI1(short from) {
return (from & 1) != 0;
}
@Specialization
public boolean executeI1(int from) {
return (from & 1) != 0;
}
@Specialization
public boolean executeI1(long from) {
return (from & 1) != 0;
}
@Specialization
public boolean executeI1(float from) {
return from != 0;
}
@Specialization
public boolean executeI1(double from) {
return from != 0;
}
@Specialization
public boolean executeLLVMFunction(boolean from) {
return from;
}
@Child private Node isNull = Message.IS_NULL.createNode();
@Child private Node isBoxed = Message.IS_BOXED.createNode();
@Child private Node unbox = Message.UNBOX.createNode();
@Child private ToLLVMNode toBool = ToLLVMNode.createNode(boolean.class);
@Specialization(guards = "notLLVM(from)")
public boolean executeTruffleObject(TruffleObject from) {
if (ForeignAccess.sendIsNull(isNull, from)) {
return false;
} else if (ForeignAccess.sendIsBoxed(isBoxed, from)) {
try {
return (boolean) toBool.executeWithTarget(ForeignAccess.sendUnbox(unbox, from));
} catch (UnsupportedMessageException e) {
CompilerDirectives.transferToInterpreter();
throw new IllegalStateException(e);
}
}
CompilerDirectives.transferToInterpreter();
throw new IllegalStateException("Not convertable");
}
@Specialization
public boolean executeLLVMBoxedPrimitive(LLVMBoxedPrimitive from) {
return (boolean) toBool.executeWithTarget(from.getValue());
}
}