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6797305: Add LoadUB and LoadUI opcode class

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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
This commit is contained in:
Christian Thalinger 2009-03-09 03:17:11 -07:00
parent 26d192003f
commit 89cea91c48
17 changed files with 726 additions and 186 deletions
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4
hotspot/src/share/vm/opto/compile.cpp
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@ -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
@ -2005,8 +2005,10 @@ static void final_graph_reshaping_impl( Node *n, Final_Reshape_Counts &fpu ) {
case Op_StoreP:
case Op_StoreN:
case Op_LoadB:
case Op_LoadUB:
case Op_LoadUS:
case Op_LoadI:
case Op_LoadUI2L:
case Op_LoadKlass:
case Op_LoadNKlass:
case Op_LoadL: