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6703890: Compressed Oops: add LoadNKlass node to generate narrow oops (32-bits) compare instructions

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Add LoadNKlass and CMoveN nodes, use CmpN and ConN nodes to generate narrow oops compare instructions.

Reviewed-by: never, rasbold
This commit is contained in:
Vladimir Kozlov 2008-05-21 13:46:23 -07:00
parent 757229db71
commit 76035424de
29 changed files with 428 additions and 128 deletions
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2
hotspot/src/share/vm/adlc/formssel.cpp
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@ -3313,7 +3313,7 @@ int MatchNode::needs_ideal_memory_edge(FormDict &globals) const {
"Store8B","Store4B","Store8C","Store4C","Store2C",
"Load4I" ,"Load2I" ,"Load2L" ,"Load2D" ,"Load4F" ,"Load2F" ,"Load16B" ,
"Load8B" ,"Load4B" ,"Load8C" ,"Load4C" ,"Load2C" ,"Load8S", "Load4S","Load2S",
"LoadRange", "LoadKlass", "LoadL_unaligned", "LoadD_unaligned",
"LoadRange", "LoadKlass", "LoadNKlass", "LoadL_unaligned", "LoadD_unaligned",
"LoadPLocked", "LoadLLocked",
"StorePConditional", "StoreLConditional",
"CompareAndSwapI", "CompareAndSwapL", "CompareAndSwapP", "CompareAndSwapN",