SDAG: Implement Select instead of SelectImpl in ARMDAGToDAGISel

This is a large change, but it's pretty mechanical:
- Where we were returning a node before, call ReplaceNode instead.
- Where we would return null to fall back to another selector, rename
  the method to try* and return a bool for success.
- Where we were calling SelectNodeTo, just return afterwards.

Part of llvm.org/pr26808.

llvm-svn: 269258
This commit is contained in:
Justin Bogner 2016-05-12 00:31:09 +00:00
parent 394dfff1ed
commit 4557136645

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