Dan Gohman 21cea8ac2e Use const qualifiers with TargetLowering. This eliminates several ...

const_casts, and it reinforces the design of the Target classes being
immutable.

SelectionDAGISel::IsLegalToFold is now a static member function, because
PIC16 uses it in an unconventional way. There is more room for API
cleanup here.

And PIC16's AsmPrinter no longer uses TargetLowering.

llvm-svn: 101635

2010-04-17 15:26:15 +00:00

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