src/hotspot/share/opto/matcher.hpp

@@ -336,10 +336,14 @@
    static const bool vector_size_supported(const BasicType bt, int size) {
      return (Matcher::max_vector_size(bt) >= size &&
              Matcher::min_vector_size(bt) <= size);
    }
  
+   static const bool supports_scalable_vector();
+   // Actual max scalable vector register length.
+   static const int scalable_vector_reg_size(const BasicType bt);
+ 
    // Vector ideal reg
    static const uint vector_ideal_reg(int len);
  
    // CPU supports misaligned vectors store/load.
    static const bool misaligned_vectors_ok();