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Author SHA1 Message Date
Tim Northover a2b533906a Remove unused MEMBARRIER DAG node; it's been replaced by ATOMIC_FENCE. 
llvm-svn: 179939
 2013-04-20 12:32:17 +00:00
Reed Kotler fafaa9d967 Add a new method which enables one to change register classes. 
See the Mips16ISetLowering.cpp patch to see a use of this.
For now now the extra code in Mips16ISetLowering.cpp is a nop but is
used for test purposes. Mips32 registers are setup and then removed and
then the Mips16 registers are setup. 

Normally you need to add register classes and then call
computeRegisterProperties.

llvm-svn: 177120
 2013-03-14 22:02:09 +00:00
Akira Hatanaka 96ca182904 [mips] Define two subclasses of MipsTargetLowering. Mips16TargetLowering is for 
mips16 and MipsSETargetLowering is for mips32/64. 

No functionality changes.

llvm-svn: 176917
 2013-03-13 00:54:29 +00:00