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introduce a new SwitchTypeMatcher node (which is analogous to

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SwitchOpcodeMatcher) and have DAGISelMatcherOpt form it.  This
speeds up selection, particularly for X86 which has lots of 
variants of instructions with only type differences.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97645 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner
2010-03-03 06:28:15 +00:00
parent 30174be37a
commit cfe2eab744
6 changed files with 147 additions and 25 deletions
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1
include/llvm/CodeGen/SelectionDAGISel.h
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@@ -121,6 +121,7 @@ public:
OPC_CheckOpcode,
OPC_SwitchOpcode,
OPC_CheckType,
OPC_SwitchType,
OPC_CheckChild0Type, OPC_CheckChild1Type, OPC_CheckChild2Type,
OPC_CheckChild3Type, OPC_CheckChild4Type, OPC_CheckChild5Type,
OPC_CheckChild6Type, OPC_CheckChild7Type,