decompress first

Author: Baunsgaard

src/main/java/org/apache/sysds/runtime/compress/lib/CLALibRemoveEmpty.java

@@ -70,6 +70,8 @@ private static MatrixBlock rmEmptyRows(CompressedMatrixBlock in, MatrixBlock ret
 		if(select == null)
 			return fallback(in, true, emptyReturn, select, ret);
 
+		select = CompressedMatrixBlock.getUncompressed(select, "decompressing selection in rmempty");
+
 		int rOut = (int) select.getNonZeros();
 		if(rOut == -1)
 			rOut = (int) select.recomputeNonZeros();
@@ -81,8 +83,9 @@ private static MatrixBlock rmEmptyRows(CompressedMatrixBlock in, MatrixBlock ret
 		// TODO: add optimization to avoid linear scan and make selectV indexes, if selection is small relative to number
 		// of rows
 		// TODO: add decompress to boolean vector.
-		final boolean[] selectV = DataConverter
-			.convertToBooleanVector(CompressedMatrixBlock.getUncompressed(select, "decompressing selection in rmempty"));
+		final boolean[] selectV = DataConverter.convertToBooleanVector(select);
+
+
 
 		final List<AColGroup> inG = in.getColGroups();
 		final List<AColGroup> retG = new ArrayList<>(inG.size());