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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 LLVMI8Vector {
private static final int I8_SIZE = 1;
private final byte[] vector;
public static LLVMI8Vector create(byte[] vector) {
return new LLVMI8Vector(vector);
}
private LLVMI8Vector(byte[] vector) {
this.vector = vector;
}
public static LLVMI8Vector readVectorFromMemory(LLVMAddress address, int size) {
byte[] vector = new byte[size];
long currentPtr = address.getVal();
for (int i = 0; i < size; i++) {
vector[i] = LLVMMemory.getI8(currentPtr);
currentPtr += I8_SIZE;
}
return create(vector);
}
public static void writeVectorToMemory(LLVMAddress address, LLVMI8Vector vector) {
long currentPtr = address.getVal();
for (int i = 0; i < vector.getLength(); i++) {
LLVMMemory.putI8(currentPtr, vector.getValue(i));
currentPtr += I8_SIZE;
}
}
// We do not want to use lambdas because of bad startup
private interface Operation {
byte eval(byte a, byte b);
}
private static LLVMI8Vector doOperation(LLVMI8Vector lhs, LLVMI8Vector rhs, Operation op) {
byte[] left = lhs.vector;
byte[] 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;
byte[] result = new byte[left.length];
for (int i = 0; i < left.length; i++) {
result[i] = op.eval(left[i], right[i]);
}
return create(result);
}
public LLVMI8Vector add(LLVMI8Vector rightValue) {
return doOperation(this, rightValue, new Operation() {
@Override
public byte eval(byte a, byte b) {
return (byte) (a + b);
}
});
}
public LLVMI8Vector mul(LLVMI8Vector rightValue) {
return doOperation(this, rightValue, new Operation() {
@Override
public byte eval(byte a, byte b) {
return (byte) (a * b);
}
});
}
public LLVMI8Vector sub(LLVMI8Vector rightValue) {
return doOperation(this, rightValue, new Operation() {
@Override
public byte eval(byte a, byte b) {
return (byte) (a - b);
}
});
}
public LLVMI8Vector div(LLVMI8Vector rightValue) {
return doOperation(this, rightValue, new Operation() {
@Override
public byte eval(byte a, byte b) {
return (byte) (a / b);
}
});
}
public LLVMI8Vector rem(LLVMI8Vector rightValue) {
return doOperation(this, rightValue, new Operation() {
@Override
public byte eval(byte a, byte b) {
return (byte) (a % b);
}
});
}
public LLVMI8Vector and(LLVMI8Vector rightValue) {
return doOperation(this, rightValue, new Operation() {
@Override
public byte eval(byte a, byte b) {
return (byte) (a & b);
}
});
}
public LLVMI8Vector or(LLVMI8Vector rightValue) {
return doOperation(this, rightValue, new Operation() {
@Override
public byte eval(byte a, byte b) {
return (byte) (a | b);
}
});
}
public LLVMI8Vector leftShift(LLVMI8Vector rightValue) {
return doOperation(this, rightValue, new Operation() {
@Override
public byte eval(byte a, byte b) {
return (byte) (a << b);
}
});
}
public LLVMI8Vector logicalRightShift(LLVMI8Vector rightValue) {
return doOperation(this, rightValue, new Operation() {
@Override
public byte eval(byte a, byte b) {
return (byte) (a >>> b);
}
});
}
public LLVMI8Vector arithmeticRightShift(LLVMI8Vector rightValue) {
return doOperation(this, rightValue, new Operation() {
@Override
public byte eval(byte a, byte b) {
return (byte) (a >> b);
}
});
}
public LLVMI8Vector xor(LLVMI8Vector rightValue) {
return doOperation(this, rightValue, new Operation() {
@Override
public byte eval(byte a, byte b) {
return (byte) (a ^ b);
}
});
}
public byte[] getValues() {
return vector;
}
public byte getValue(int index) {
return vector[index];
}
public LLVMI8Vector insert(byte element, int index) {
byte[] copyOf = Arrays.copyOf(vector, vector.length);
copyOf[index] = element;
return create(copyOf);
}
public int getLength() {
return vector.length;
}
}