Eli Friedman da08078fb2 [MachineOutliner] Clean up subtarget handling. ...

Call shouldOutlineFromFunctionByDefault, isFunctionSafeToOutlineFrom,
getOutliningType, and getMachineOutlinerMBBFlags using the correct
TargetInstrInfo. And don't create a MachineFunction for a function
declaration.

The call to getOutliningCandidateInfo is still a little weird, but at
least the weirdness is explicitly called out.

Differential Revision: https://reviews.llvm.org/D49880

llvm-svn: 338465

2018-08-01 00:37:20 +00:00

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