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package com.oracle.truffle.llvm.runtime.vector;
import com.oracle.truffle.api.CompilerDirectives.ValueType;
import com.oracle.truffle.llvm.runtime.LLVMAddress;
import com.oracle.truffle.llvm.runtime.memory.LLVMMemory;
import java.util.Arrays;
@ValueType
public final class LLVMI1Vector {
private static final int I1_SIZE = 1;
private final boolean[] vector;
public static LLVMI1Vector create(boolean[] vector) {
return new LLVMI1Vector(vector);
}
private LLVMI1Vector(boolean[] vector) {
this.vector = vector;
}
public static LLVMI1Vector readVectorFromMemory(LLVMAddress address, int size) {
boolean[] vector = new boolean[size];
long currentPtr = address.getVal();
for (int i = 0; i < size; i++) {
vector[i] = LLVMMemory.getI1(currentPtr);
currentPtr += I1_SIZE;
}
return create(vector);
}
public static void writeVectorToMemory(LLVMAddress address, LLVMI1Vector vector) {
long currentPtr = address.getVal();
for (int i = 0; i < vector.getLength(); i++) {
LLVMMemory.putI1(currentPtr, vector.getValue(i));
currentPtr += I1_SIZE;
}
}
// We do not want to use lambdas because of bad startup
private interface Operation {
boolean eval(boolean a, boolean b);
}
private static LLVMI1Vector doOperation(LLVMI1Vector lhs, LLVMI1Vector rhs, Operation op) {
boolean[] left = lhs.vector;
boolean[] right = rhs.vector;
// not sure if this assert is true for llvm ir in general
// this implementation however assumes it
assert left.length == right.length;
boolean[] result = new boolean[left.length];
for (int i = 0; i < left.length; i++) {
result[i] = op.eval(left[i], right[i]);
}
return create(result);
}
public LLVMI1Vector and(LLVMI1Vector rightValue) {
return doOperation(this, rightValue, new Operation() {
@Override
public boolean eval(boolean a, boolean b) {
return a & b;
}
});
}
public LLVMI1Vector or(LLVMI1Vector rightValue) {
return doOperation(this, rightValue, new Operation() {
@Override
public boolean eval(boolean a, boolean b) {
return a | b;
}
});
}
public LLVMI1Vector xor(LLVMI1Vector rightValue) {
return doOperation(this, rightValue, new Operation() {
@Override
public boolean eval(boolean a, boolean b) {
return a ^ b;
}
});
}
public boolean[] getValues() {
return vector;
}
public boolean getValue(int index) {
return vector[index];
}
public LLVMI1Vector insert(boolean element, int index) {
boolean[] copyOf = Arrays.copyOf(vector, vector.length);
copyOf[index] = element;
return create(copyOf);
}
public int getLength() {
return vector.length;
}
}