Mercurial > hg > graal-compiler
diff src/share/vm/opto/memnode.hpp @ 624:337400e7a5dd
6797305: Add LoadUB and LoadUI opcode class
Summary: Add a LoadUB (unsigned byte) and LoadUI (unsigned int) opcode class so we have these load optimizations in the first place and do not need to handle them in the matcher.
Reviewed-by: never, kvn
| author | twisti |
|---|---|
| date | Mon, 09 Mar 2009 03:17:11 -0700 |
| parents | 98cb887364d3 |
| children | 7bb995fbd3c0 |
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--- a/src/share/vm/opto/memnode.hpp Fri Mar 06 21:36:50 2009 -0800 +++ b/src/share/vm/opto/memnode.hpp Mon Mar 09 03:17:11 2009 -0700 @@ -1,5 +1,5 @@ /* - * Copyright 1997-2008 Sun Microsystems, Inc. All Rights Reserved. + * Copyright 1997-2009 Sun Microsystems, Inc. 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 @@ -207,6 +207,19 @@ virtual BasicType memory_type() const { return T_BYTE; } }; +//------------------------------LoadUBNode------------------------------------- +// Load a unsigned byte (8bits unsigned) from memory +class LoadUBNode : public LoadNode { +public: + LoadUBNode(Node* c, Node* mem, Node* adr, const TypePtr* at, const TypeInt* ti = TypeInt::UBYTE ) + : LoadNode(c, mem, adr, at, ti) {} + virtual int Opcode() const; + virtual uint ideal_reg() const { return Op_RegI; } + virtual Node* Ideal(PhaseGVN *phase, bool can_reshape); + virtual int store_Opcode() const { return Op_StoreB; } + virtual BasicType memory_type() const { return T_BYTE; } +}; + //------------------------------LoadUSNode------------------------------------- // Load an unsigned short/char (16bits unsigned) from memory class LoadUSNode : public LoadNode { @@ -232,6 +245,18 @@ virtual BasicType memory_type() const { return T_INT; } }; +//------------------------------LoadUI2LNode----------------------------------- +// Load an unsigned integer into long from memory +class LoadUI2LNode : public LoadNode { +public: + LoadUI2LNode(Node* c, Node* mem, Node* adr, const TypePtr* at, const TypeLong* t = TypeLong::UINT) + : LoadNode(c, mem, adr, at, t) {} + virtual int Opcode() const; + virtual uint ideal_reg() const { return Op_RegL; } + virtual int store_Opcode() const { return Op_StoreL; } + virtual BasicType memory_type() const { return T_LONG; } +}; + //------------------------------LoadRangeNode---------------------------------- // Load an array length from the array class LoadRangeNode : public LoadINode {