src/hotspot/share/opto/type.hpp

rev 60615 : 8231441: Initial SVE backend support
Reviewed-by: adinn, pli
Contributed-by: joshua.zhu@arm.com, yang.zhang@arm.com, ningsheng.jian@arm.com

@@ -1,7 +1,7 @@
 /*
- * Copyright (c) 1997, 2019, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1997, 2020, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License version 2 only, as
  * published by the Free Software Foundation.

@@ -51,10 +51,11 @@
 class     TypeNarrowOop;
 class     TypeNarrowKlass;
 class   TypeAry;
 class   TypeTuple;
 class   TypeVect;
+class     TypeVectA;
 class     TypeVectS;
 class     TypeVectD;
 class     TypeVectX;
 class     TypeVectY;
 class     TypeVectZ;

@@ -85,10 +86,11 @@
     NarrowOop,                  // Compressed oop pointer
     NarrowKlass,                // Compressed klass pointer
 
     Tuple,                      // Method signature or object layout
     Array,                      // Array types
+    VectorA,                    // (Scalable) Vector types for vector length agnostic
     VectorS,                    //  32bit Vector types
     VectorD,                    //  64bit Vector types
     VectorX,                    // 128bit Vector types
     VectorY,                    // 256bit Vector types
     VectorZ,                    // 512bit Vector types

@@ -755,10 +757,11 @@
   static const TypeVect *make(const Type* elem, uint length);
 
   virtual const Type *xmeet( const Type *t) const;
   virtual const Type *xdual() const;     // Compute dual right now.
 
+  static const TypeVect *VECTA;
   static const TypeVect *VECTS;
   static const TypeVect *VECTD;
   static const TypeVect *VECTX;
   static const TypeVect *VECTY;
   static const TypeVect *VECTZ;

@@ -766,10 +769,15 @@
 #ifndef PRODUCT
   virtual void dump2(Dict &d, uint, outputStream *st) const; // Specialized per-Type dumping
 #endif
 };
 
+class TypeVectA : public TypeVect {
+  friend class TypeVect;
+  TypeVectA(const Type* elem, uint length) : TypeVect(VectorA, elem, length) {}
+};
+
 class TypeVectS : public TypeVect {
   friend class TypeVect;
   TypeVectS(const Type* elem, uint length) : TypeVect(VectorS, elem, length) {}
 };
 

@@ -1620,16 +1628,16 @@
 inline const TypeAry *Type::isa_ary() const {
   return ((_base == Array) ? (TypeAry*)this : NULL);
 }
 
 inline const TypeVect *Type::is_vect() const {
-  assert( _base >= VectorS && _base <= VectorZ, "Not a Vector" );
+  assert( _base >= VectorA && _base <= VectorZ, "Not a Vector" );
   return (TypeVect*)this;
 }
 
 inline const TypeVect *Type::isa_vect() const {
-  return (_base >= VectorS && _base <= VectorZ) ? (TypeVect*)this : NULL;
+  return (_base >= VectorA && _base <= VectorZ) ? (TypeVect*)this : NULL;
 }
 
 inline const TypePtr *Type::is_ptr() const {
   // AnyPtr is the first Ptr and KlassPtr the last, with no non-ptrs between.
   assert(_base >= AnyPtr && _base <= KlassPtr, "Not a pointer");