Dan Gohman 8aa237c3ca [WebAssembly] Create new registers instead of reusing old ones in RegStackify. ...

This avoids some complications updating LiveIntervals to be aware of the new
register lifetimes, because we can just compute new intervals from scratch
rather than describe how the old ones have been changed.

llvm-svn: 260971

2016-02-16 15:17:21 +00:00

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