Dale Johannesen 08645f1991 Don't hoist things out of a large switch inside a ...

loop, for the reasons in the comments.  This is a
major win on 253.perlbmk on ARM Darwin.  I expect it
to be a good heuristic in general, but it's possible
some things will regress; I'll be watching.
7940152.

llvm-svn: 108792

2010-07-20 00:50:13 +00:00

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