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src/jdk.incubator.vector/share/classes/jdk/incubator/vector/Long128Vector.java
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@@ -1105,52 +1105,67 @@
}
return new Double128Vector(res);
}
@Override
+ @ForceInline
public Long128Vector rotateLanesLeft(int j) {
- long[] vec = getElements();
- long[] res = new long[length()];
- for (int i = 0; i < length(); i++){
- res[(j + i) % length()] = vec[i];
+ int L = length();
+ if (j < 0) {
+ throw new IllegalArgumentException("Index " + j + " must be zero or positive");
+ } else {
+ j = j & (L-1);
+ VectorShuffle<Long> PermMask = VectorShuffle.shuffleIota(SPECIES, L - j);
+ return this.rearrange(PermMask);
}
- return new Long128Vector(res);
}
@Override
+ @ForceInline
public Long128Vector rotateLanesRight(int j) {
- long[] vec = getElements();
- long[] res = new long[length()];
- for (int i = 0; i < length(); i++){
- int z = i - j;
- if(j < 0) {
- res[length() + z] = vec[i];
+ int L = length();
+ if (j < 0) {
+ throw new IllegalArgumentException("Index " + j + " must be zero or positive");
} else {
- res[z] = vec[i];
- }
+ j = j & (L-1);
+ VectorShuffle<Long> PermMask = VectorShuffle.shuffleIota(SPECIES, j);
+ return this.rearrange(PermMask);
}
- return new Long128Vector(res);
}
@Override
+ @ForceInline
+ @SuppressWarnings("unchecked")
public Long128Vector shiftLanesLeft(int j) {
- long[] vec = getElements();
- long[] res = new long[length()];
- for (int i = 0; i < length() - j; i++) {
- res[i] = vec[i + j];
+ int L = length();
+ if (j < 0) {
+ throw new IllegalArgumentException("Index " + j + " must be zero or positive");
+ } else if ( j >= L ) {
+ return ZERO;
+ } else {
+ Long128Shuffle Iota = (Long128Shuffle)(VectorShuffle.shuffleIota(SPECIES, L-j));
+ VectorMask<Long> BlendMask = Iota.toVector().lessThan(Long128Vector.broadcast(SPECIES, (long)(L-j)));
+ Iota = (Long128Shuffle)(VectorShuffle.shuffleIota(SPECIES, L -j));
+ return ZERO.blend(this.rearrange(Iota),BlendMask);
}
- return new Long128Vector(res);
}
@Override
+ @ForceInline
+ @SuppressWarnings("unchecked")
public Long128Vector shiftLanesRight(int j) {
- long[] vec = getElements();
- long[] res = new long[length()];
- for (int i = 0; i < length() - j; i++){
- res[i + j] = vec[i];
+ int L = length();
+ if (j < 0) {
+ throw new IllegalArgumentException("Index " + j + " must be zero or positive");
+ } else if ( j >= L ) {
+ return ZERO;
+ } else {
+ Long128Shuffle Iota = (Long128Shuffle)(VectorShuffle.shuffleIota(SPECIES, j));
+ VectorMask<Long> BlendMask = Iota.toVector().greaterThanEq(Long128Vector.broadcast(SPECIES, (long)(j)));
+ Iota = (Long128Shuffle)(VectorShuffle.shuffleIota(SPECIES, j));
+ return ZERO.blend(this.rearrange(Iota),BlendMask);
}
- return new Long128Vector(res);
}
@Override
@ForceInline
public Long128Vector rearrange(Vector<Long> v,
@@ -1385,21 +1400,28 @@
@Override
public VectorSpecies<Long> species() {
return SPECIES;
}
- @Override
- public LongVector toVector() {
+ private LongVector toVector_helper() {
long[] va = new long[SPECIES.length()];
for (int i = 0; i < va.length; i++) {
va[i] = (long) lane(i);
}
return LongVector.fromArray(SPECIES, va, 0);
}
@Override
@ForceInline
+ public LongVector toVector() {
+ return VectorIntrinsics.shuffleToVector(Long128Vector.class, long.class, Long128Shuffle.class, this,
+ SPECIES.length(),
+ (s) -> (((Long128Shuffle)(s)).toVector_helper()));
+ }
+
+ @Override
+ @ForceInline
@SuppressWarnings("unchecked")
public <F> VectorShuffle<F> cast(VectorSpecies<F> species) {
if (length() != species.length())
throw new IllegalArgumentException("Shuffle length and species length differ");
Class<?> stype = species.elementType();
@@ -1419,10 +1441,11 @@
} else {
throw new UnsupportedOperationException("Bad lane type for casting.");
}
}
+
@Override
public Long128Shuffle rearrange(VectorShuffle<Long> o) {
Long128Shuffle s = (Long128Shuffle) o;
byte[] r = new byte[reorder.length];
for (int i = 0; i < reorder.length; i++) {
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